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    1 Recent user-visible changes to Tcl:
    2 
    3 1. No more [command1] [command2] construct for grouping multiple
    4 commands on a single command line.
    5 
    6 2. Semi-colon now available for grouping commands on a line.
    7 
    8 3. For a command to span multiple lines, must now use backslash-return
    9 at the end of each line but the last.
   10 
   11 4. "Var" command has been changed to "set".
   12 
   13 5. Double-quotes now available as an argument grouping character.
   14 
   15 6. "Return" may be used at top-level.
   16 
   17 7. More backslash sequences available now.  In particular, backslash-newline
   18 may be used to join lines in command files.
   19 
   20 8. New or modified built-in commands:  case, return, for, glob, info,
   21 print, return, set, source, string, uplevel.
   22 
   23 9. After an error, the variable "errorInfo" is filled with a stack
   24 trace showing what was being executed when the error occurred.
   25 
   26 10. Command abbreviations are accepted when parsing commands, but
   27 are not recommended except for purely-interactive commands.
   28 
   29 11. $, set, and expr all complain now if a non-existent variable is
   30 referenced.
   31 
   32 12. History facilities exist now.  See Tcl.man and Tcl_RecordAndEval.man.
   33 
   34 13. Changed to distinguish between empty variables and those that don't
   35 exist at all.  Interfaces to Tcl_GetVar and Tcl_ParseVar have changed
   36 (NULL return value is now possible).  *** POTENTIAL INCOMPATIBILITY ***
   37 
   38 14. Changed meaning of "level" argument to "uplevel" command (1 now means
   39 "go up one level", not "go to level 1"; "#1" means "go to level 1").
   40 *** POTENTIAL INCOMPATIBILITY ***
   41 
   42 15. 3/19/90 Added "info exists" option to see if variable exists.
   43 
   44 16. 3/19/90 Added "noAbbrev" variable to prohibit command abbreviations.
   45 
   46 17. 3/19/90 Added extra errorInfo option to "error" command.
   47 
   48 18. 3/21/90 Double-quotes now only affect space:  command, variable,
   49 and backslash substitutions still occur inside double-quotes.
   50 *** POTENTIAL INCOMPATIBILITY ***
   51 
   52 19. 3/21/90 Added support for \r.
   53 
   54 20. 3/21/90 List, concat, eval, and glob commands all expect at least
   55 one argument now.  *** POTENTIAL INCOMPATIBILITY ***
   56 
   57 21. 3/22/90 Added "?:" operators to expressions.
   58 
   59 22. 3/25/90 Fixed bug in Tcl_Result that caused memory to get trashed.
   60 
   61 ------------------- Released version 3.1 ---------------------
   62 
   63 23. 3/29/90 Fixed bug that caused "file a.b/c ext" to return ".b/c".
   64 
   65 24. 3/29/90 Semi-colon is not treated specially when enclosed in
   66 double-quotes.
   67 
   68 ------------------- Released version 3.2 ---------------------
   69 
   70 25. 4/16/90 Rewrote "exec" not to use select or signals anymore.
   71 Should be more Sys-V compatible, and no slower in the normal case.
   72 
   73 26. 4/18/90 Rewrote "glob" to eliminate GNU code (there's no GNU code
   74 left in Tcl, now), and added Tcl_TildeSubst procedure.  Added automatic
   75 tilde-substitution in many commands, including "glob".
   76 
   77 ------------------- Released version 3.3 ---------------------
   78 
   79 27. 7/11/90 Added "Tcl_AppendResult" procedure.
   80 
   81 28. 7/20/90 "History" with no options now defaults to "history info"
   82 rather than to "history redo".  Although this is a backward incompatibility,
   83 it should only be used interactively and thus shouldn't present any
   84 compatibility problems with scripts.
   85 
   86 29. 7/20/90 Added "Tcl_GetInteger", "Tcl_GetDouble", and "Tcl_GetBoolean"
   87 procedures.
   88 
   89 30. 7/22/90 Removed "Tcl_WatchInterp" procedure:  doesn't seem to be
   90 necessary, since the same effect can be achieved with the deletion
   91 callbacks on individual commands.  *** POTENTIAL INCOMPATIBILITY ***
   92 
   93 31. 7/23/90 Added variable tracing:  Tcl_TraceVar, Tcl_UnTraceVar,
   94 and Tcl_VarTraceInfo procedures, "trace" command.
   95 
   96 32. 8/9/90 Mailed out list of all bug fixes since 3.3 release.
   97 
   98 33. 8/29/90 Fixed bugs in Tcl_Merge relating to backslashes and
   99 semi-colons.  Mailed out patch.
  100 
  101 34. 9/3/90 Fixed bug in tclBasic.c: quotes weren't quoting ]'s.
  102 Mailed out patch.
  103 
  104 35. 9/19/90 Rewrote exec to always use files both for input and
  105 output to the process.  The old pipe-based version didn't work if
  106 the exec'ed process forked a child and then exited:  Tcl waited
  107 around for stdout to get closed, which didn't happen until the
  108 grandchild exited.
  109 
  110 36. 11/5/90 ERR_IN_PROGRESS flag wasn't being cleared soon enough
  111 in Tcl_Eval, allowing error messages from different commands to
  112 pile up in $errorInfo.  Fixed by re-arranging code in Tcl_Eval that
  113 re-initializes result and ERR_IN_PROGRESS flag.  Didn't mail out
  114 patch:  changes too complicated to describe.
  115 
  116 37. 12/19/90 Added Tcl_VarEval procedure as a convenience for
  117 assembling and executing Tcl commands.
  118 
  119 38. 1/29/91 Fixed core leak in Tcl_AddErrorInfo.  Also changed procedure
  120 and Tcl_Eval so that first call to Tcl_AddErrorInfo need not come from
  121 Tcl_Eval.
  122 
  123 ----------------- Released version 5.0 with Tk ------------------
  124 
  125 39. 4/3/91 Removed change bars from manual entries, leaving only those
  126 that came after version 3.3 was released.
  127 
  128 40. 5/17/91 Changed tests to conform to Mary Ann May-Pumphrey's approach.
  129 
  130 41. 5/23/91 Massive revision to Tcl parser to simplify the implementation
  131 of string and floating-point support in expressions.  Newlines inside
  132 [] are now treated as command separators rather than word separators
  133 (this makes newline treatment consistent throughout Tcl).
  134 *** POTENTIAL INCOMPATIBILITY ***
  135 
  136 42. 5/23/91 Massive rewrite of expression code to support floating-point
  137 values and simple string comparisons.  The C interfaces to expression
  138 routines have changed (Tcl_Expr is replaced by Tcl_ExprLong, Tcl_ExprDouble,
  139 etc.), but all old Tcl expression strings should be accepted by the new
  140 expression code.
  141 *** POTENTIAL INCOMPATIBILITY ***
  142 
  143 43. 5/23/91 Modified tclHistory.c to check for negative "keep" value.
  144 
  145 44. 5/23/91 Modified Tcl_Backslash to handle backslash-newline.  It now
  146 returns 0 to indicate that a backslash sequence should be replaced by
  147 no character at all.
  148 *** POTENTIAL INCOMPATIBILITY ***
  149 
  150 45. 5/29/91 Modified to use ANSI C function prototypes.  Must set
  151 "USE_ANSI" switch when compiling to get prototypes.
  152 
  153 46. 5/29/91 Completed test suite by providing tests for all of the
  154 built-in Tcl commands.
  155 
  156 47. 5/29/91 Changed Tcl_Concat to eliminate leading and trailing
  157 white-space in each of the things it concatenates and to ignore
  158 elements that are empty or have only white space in them.  This
  159 produces cleaner output from the "concat" command.
  160 *** POTENTIAL INCOMPATIBILITY ***
  161 
  162 48. 5/31/91 Changed "set" command and Tcl_SetVar procedure to return
  163 new value of variable.
  164 
  165 49. 6/1/91 Added "while" and "cd" commands.
  166 
  167 50. 6/1/91 Changed "exec" to delete the last character of program
  168 output if it is a newline.  In most cases this makes it easier to
  169 process program-generated output.
  170 *** POTENTIAL INCOMPATIBILITY ***
  171 
  172 51. 6/1/91 Made sure that pointers are never used after freeing them.
  173 
  174 52. 6/1/91 Fixed bug in TclWordEnd where it wasn't dealing with
  175 [] inside quotes correctly.
  176 
  177 53. 6/8/91 Fixed exec.test to accept return values of either 1 or
  178 255 from "false" command.
  179 
  180 54. 7/6/91 Massive overhaul of variable management.  Associative
  181 arrays now available, along with "unset" command (and Tcl_UnsetVar
  182 procedure).  Variable traces have been completely reworked:
  183 interfaces different both from Tcl and C, and multiple traces may
  184 exist on same variable.  Can no longer redefine existing local
  185 variable to be global.  Calling sequences have changed slightly
  186 for Tcl_GetVar and Tcl_SetVar ("global" is now "flags"). Tcl_SetVar
  187 can fail and return a NULL result.  New forms of variable-manipulation
  188 procedures:  Tcl_GetVar2, Tcl_SetVar2, etc.  Syntax of variable
  189 $-notation changed to support array indexing.
  190 *** POTENTIAL INCOMPATIBILITY ***
  191 
  192 55. 7/6/91 Added new list-manipulation procedures:  Tcl_ScanElement,
  193 Tcl_ConvertElement, Tcl_AppendElement.
  194 
  195 56. 7/12/91 Created new procedure Tcl_EvalFile, which does most of the
  196 work of the "source" command.
  197 
  198 57. 7/20/91 Major reworking of "exec" command to allow pipelines,
  199 more redirection, background.  Added new procedures Tcl_Fork,
  200 Tcl_WaitPids, Tcl_DetachPids, and Tcl_CreatePipeline.  The old
  201 "< input" notation has been replaced by "<< input" ("<" is for
  202 redirection from a file).  Also handles error returns and abnormal
  203 terminations (e.g. signals) differently.
  204 *** POTENTIAL INCOMPATIBILITY ***
  205 
  206 58. 7/21/91 Added "append" and "lappend" commands.
  207 
  208 59. 7/22/91 Reworked error messages and manual entries to use
  209 ?x? as the notation for an optional argument x, instead of [x].  The
  210 bracket notation was often confused with the use of brackets for
  211 command substitution.  Also modified error messages to be more
  212 consistent.
  213 
  214 60. 7/23/91 Tcl_DeleteCommand now returns an indication of whether
  215 or not the command actually existed, and the "rename" command uses
  216 this information to return an error if an attempt is made to delete
  217 a non-existent command.
  218 *** POTENTIAL INCOMPATIBILITY ***
  219 
  220 61. 7/25/91 Added new "errorCode" mechanism, along with procedures
  221 Tcl_SetErrorCode, Tcl_UnixError, and Tcl_ResetResult.  Renamed
  222 Tcl_Return to Tcl_SetResult, but left a #define for Tcl_Return to
  223 avoid compatibility problems.
  224 
  225 62. 7/26/91 Extended "case" command with alternate syntax where all
  226 patterns and commands are together in a single list argument:  makes
  227 it easier to write multi-line case statements.
  228 
  229 63. 7/27/91 Changed "print" command to perform tilde-substitution on
  230 the file name.
  231 
  232 64. 7/27/91 Added "tolower", "toupper", "trim", "trimleft", and "trimright"
  233 options to "string" command.
  234 
  235 65. 7/29/91 Added "atime", "mtime", "size", and "stat" options to "file"
  236 command.
  237 
  238 66. 8/1/91 Added "split" and "join" commands.
  239 
  240 67. 8/11/91 Added commands for file I/O, including "open", "close",
  241 "read", "gets", "puts", "flush", "eof", "seek", and "tell".
  242 
  243 68. 8/14/91 Switched to use a hash table for command lookups.  Command
  244 abbreviations no longer have direct support in the Tcl interpreter, but
  245 it should be possible to simulate them with the auto-load features
  246 described below.  The "noAbbrev" variable is no longer used by Tcl.
  247 *** POTENTIAL INCOMPATIBILITY ***
  248 
  249 68.5 8/15/91 Added support for "unknown" command, which can be used to
  250 complete abbreviations, auto-load library files, auto-exec shell
  251 commands, etc.
  252 
  253 69. 8/15/91 Added -nocomplain switch to "glob" command.
  254 
  255 70. 8/20/91 Added "info library" option and TCL_LIBRARY #define.  Also
  256 added "info script" option.
  257 
  258 71. 8/20/91 Changed "file" command to take "option" argument as first
  259 argument (before file name), for consistency with other Tcl commands.
  260 *** POTENTIAL INCOMPATIBILITY ***
  261 
  262 72. 8/20/91 Changed format of information in $errorInfo variable:
  263 comments such as
  264     ("while" body line 1)
  265 are now on separate lines from commands being executed.
  266 *** POTENTIAL INCOMPATIBILITY ***
  267 
  268 73. 8/20/91 Changed Tcl_AppendResult so that it (eventually) frees
  269 large buffers that it allocates.
  270 
  271 74. 8/21/91 Added "linsert", "lreplace", "lsearch", and "lsort"
  272 commands.
  273 
  274 75. 8/28/91 Added "incr" and "exit" commands.
  275 
  276 76. 8/30/91 Added "regexp" and "regsub" commands.
  277 
  278 77. 9/4/91 Changed "dynamic" field in interpreters to "freeProc" (procedure
  279 address).  This allows for alternative storage managers.
  280 *** POTENTIAL INCOMPATIBILITY ***
  281 
  282 78. 9/6/91 Added "index", "length", and "range" options to "string"
  283 command.  Added "lindex", "llength", and "lrange" commands.
  284 
  285 79. 9/8/91 Removed "index", "length", "print" and "range" commands.
  286 "Print" is redundant with "puts", but less general, and the other
  287 commands are replaced with the new commands described in change 78
  288 above.
  289 *** POTENTIAL INCOMPATIBILITY ***
  290 
  291 80. 9/8/91 Changed history revision to occur even when history command
  292 is nested;  needed in order to allow "history" to be invoked from
  293 "unknown" procedure.
  294 
  295 81. 9/13/91 Changed "panic" not to use vfprintf (it's uglier and less
  296 general now, but makes it easier to run Tcl on systems that don't
  297 have vfprintf).  Also changed "strerror" not to redeclare sys_errlist.
  298 
  299 82. 9/19/91 Lots of changes to improve portability to different UNIX
  300 systems, including addition of "config" script to adapt Tcl to the
  301 configuration of the system it's being compiled on.
  302 
  303 83. 9/22/91 Added "pwd" command.
  304 
  305 84. 9/22/91 Renamed manual pages so that their filenames are no more
  306 than 14 characters in length, moved to "doc" subdirectory.
  307 
  308 85. 9/24/91 Redid manual entries so they contain the supplemental
  309 macros that they need;  can just print with "troff -man" or "man"
  310 now.
  311 
  312 86. 9/26/91 Created initial version of script library, including
  313 a version of "unknown" that does auto-loading, auto-execution, and
  314 abbreviation expansion.  This library is used by tclTest
  315 automatically.  See the "library" manual entry for details.
  316 
  317 ----------------- Released version 6.0, 9/26/91 ------------------
  318 
  319 87. 9/30/91 Made "string tolower" and "string toupper" check case
  320 before converting:  on some systems, "tolower" and "toupper" assume
  321 that character already has particular case.
  322 
  323 88. 9/30/91 Fixed bug in Tcl_SetResult:  wasn't always setting freeProc
  324 correctly when called with NULL value.  This tended to cause memory
  325 allocation errors later.
  326 
  327 89. 10/3/91 Added "upvar" command.
  328 
  329 90. 10/4/91 Changed "format" so that internally it converts %D to %ld,
  330 %U to %lu, %O to %lo, and %F to %f.  This eliminates some compatibility
  331 problems on some machines without affecting behavior.
  332 
  333 91. 10/10/91 Fixed bug in "regsub" that caused core dumps with the -all
  334 option when the last match wasn't at the end of the string.
  335 
  336 92. 10/17/91 Fixed problems with backslash sequences:  \r support was
  337 incomplete and \f and \v weren't supported at all.
  338 
  339 93. 10/24/91 Added Tcl_InitHistory procedure.
  340 
  341 94. 10/24/91 Changed "regexp" to store "-1 -1" in subMatchVars that
  342 don't match, rather than returning an error.
  343 
  344 95. 10/27/91 Modified "regexp" to return actual strings in matchVar
  345 and subMatchVars instead of indices.  Added "-indices" switch to cause
  346 indices to be returned.
  347 *** POTENTIAL INCOMPATIBILITY ***
  348 
  349 96. 10/27/91 Fixed bug in "scan" where it used hardwired constants for
  350 sizes of floats and doubles instead of using "sizeof".
  351 
  352 97. 10/31/91 Fixed bug in tclParse.c where parse-related error messages
  353 weren't being storage-managed correctly, causing spurious free's.
  354 
  355 98. 10/31/91 Form feed and vertical tab characters are now considered
  356 to be space characters by the parser.
  357 
  358 99. 10/31/91 Added TCL_LEAVE_ERR_MSG flag to procedures like Tcl_SetVar.
  359 
  360 100. 11/7/91 Fixed bug in "case" where "in" argument couldn't be omitted
  361 if all case branches were embedded in a single list.
  362 
  363 101. 11/7/91 Switched to use "pid_t" and "uid_t" and other official
  364 POSIC types and function prototypes.
  365 
  366 ----------------- Released version 6.1, 11/7/91 ------------------
  367 
  368 102. 12/2/91 Modified Tcl_ScanElement and Tcl_ConvertElement in several
  369 ways.  First, allowed caller to request that only backslashes be used
  370 (no braces).  Second, made Tcl_ConvertElement more aggressive in using
  371 backslashes for braces and quotes.
  372 
  373 103. 12/5/91 Added "type", "lstat", and "readlink" options to "file"
  374 command, plus added new "type" element to output of "stat" and "lstat"
  375 options.
  376 
  377 104. 12/10/91 Manual entries had first lines that caused "man" program
  378 to try weird preprocessor.  Added blank comment lines to fix problem.
  379 
  380 105. 12/16/91 Fixed a few bugs in auto_mkindex proc:  wasn't handling
  381 errors properly, and hadn't been upgraded for new "regexp" syntax.
  382 
  383 106. 1/2/92 Fixed bug in "file" command where it didn't properly handle
  384 a file names containing tildes where the indicated user doesn't exist.
  385 
  386 107. 1/2/92 Fixed lots of cases in tclUnixStr.c where two different
  387 errno symbols (e.g. EWOULDBLOCK and EAGAIN) have the same number;  Tcl
  388 will only use one of them.
  389 
  390 108. 1/2/92 Lots of changes to configuration script to handle many more
  391 systems more gracefully.  E.g. should now detect the bogus strtoul that
  392 comes with AIX and substitute Tcl's own version instead.
  393 
  394 ----------------- Released version 6.2, 1/10/92 ------------------
  395 
  396 109. 1/20/92 Config didn't have code to actually use "uid_t" variable
  397 to set TCL_UIT_T #define.
  398 
  399 110. 2/10/92 Tcl_Eval didn't properly reset "numLevels" variable when
  400 too-deep recursion occurred.
  401 
  402 111. 2/29/92 Added "on" and "off" to keywords accepted by Tcl_GetBoolean.
  403 
  404 112. 3/19/92 Config wasn't installing default version of strtod.c for
  405 systems that don't have one in libc.a.
  406 
  407 113. 3/23/92 Fixed bug in tclExpr.c where numbers with leading "."s,
  408 like 0.75, couldn't be properly substituted into expressions with
  409 variable or command substitution.
  410 
  411 114. 3/25/92 Fixed bug in tclUnixAZ.c where "gets" command wasn't
  412 checking to make sure that it was able to write the variable OK.
  413 
  414 115. 4/16/92 Fixed bug in tclUnixAZ.c where "read" command didn't
  415 compute file size right for device files.
  416 
  417 116. 4/23/92 Fixed but in tclCmdMZ.c where "trace vinfo" was overwriting
  418 the trace command.
  419 
  420 ----------------- Released version 6.3, 5/1/92 ------------------
  421 
  422 117. 5/1/92 Added Tcl_GlobalEval.
  423 
  424 118. 6/1/92 Changed auto-load facility to source files at global level.
  425 
  426 119. 6/8/92 Tcl_ParseVar wasn't always setting termPtr after errors, which
  427 sometimes caused core dumps.
  428 
  429 120. 6/21/92 Fixed bug in initialization of regexp pattern cache.  This
  430 bug caused segmentation violations in regexp commands under some conditions.
  431 
  432 121. 6/22/92 Changed implementation of "glob" command to eliminate
  433 trailing slashes on directory names:  they confuse some systems.  There
  434 shouldn't be any user-visible changes in functionality except for names
  435 in error messages not having trailing slashes.
  436 
  437 122. 7/2/92 Fixed bug that caused 'string match ** ""' to return 0.
  438 
  439 123. 7/2/92 Fixed bug in Tcl_CreateCmdBuf where it wasn't initializing
  440 the buffer to an empty string.
  441 
  442 124. 7/6/92 Fixed bug in "case" command where it used NULL pattern string
  443 after errors in the "default" clause.
  444 
  445 125. 7/25/92 Speeded up auto_load procedure:  don't reread all the index
  446 files unless the path has changed.
  447 
  448 126. 8/3/92 Changed tclUnix.h to define MAXPATHLEN from PATH_MAX, not
  449 _POSIX_PATH_MAX.
  450 
  451 ----------------- Released version 6.4, 8/7/92 ------------------
  452 
  453 127. 8/10/92 Changed tclBasic.c so that comment lines can be continued by
  454 putting a backslash before the newline.
  455 
  456 128. 8/21/92 Modified "unknown" to allow the source-ing of a file for
  457 an auto-load to trigger other nested auto-loads, as long as there isn't
  458 any recursion on the same command name.
  459 
  460 129. 8/25/92 Modified "format" command to allow " " and "+" flags, and
  461 allow flags in any order.
  462 
  463 130. 9/14/92 Modified Tcl_ParseVar so that it doesn't actually attempt
  464 to look up the variable if "noEval" mode is in effect in the interpreter
  465 (it just parses the name).  This avoids the errors that used to occur
  466 in statements like "expr {[info exists foo] && $foo}".
  467 
  468 131. 9/14/92 Fixed bug in "uplevel" command where it didn't output the
  469 correct error message if a level was specified but no command.
  470 
  471 132. 9/14/92 Renamed manual entries to have extensions like .3 and .n,
  472 and added "install" target to Makefile.
  473 
  474 133. 9/18/92 Modified "unknown" command to emulate !!, !<num>, and
  475 ^<old>^<new> csh history substitutions.
  476 
  477 134. 9/21/92 Made the config script cleverer about figuring out which
  478 switches to pass to "nm".
  479 
  480 135. 9/23/92 Fixed tclVar.c to be sure to copy flags when growing variables.
  481 Used to forget about traces in progress and make extra recursive calls
  482 on trace procs.
  483 
  484 136. 9/28/92 Fixed bug in auto_reset where it was unsetting variables
  485 that might not exist.
  486 
  487 137. 10/7/92 Changed "parray" library procedure to print any array
  488 accessible to caller, local or global.
  489 
  490 138. 10/15/92 Fixed bug where propagation of new environment variable
  491 values among interpreters took N! time if there exist N interpreters.
  492 
  493 139. 10/16/92 Changed auto_reset procedure so that it also deletes any
  494 existing procedures that are in the auto_load index (the assumption is
  495 that they should be re-loaded to get the latest versions).
  496 
  497 140. 10/21/92 Fixed bug that caused lists to be incorrectly generated
  498 for elements that contained backslash-newline sequences.
  499 
  500 141. 12/9/92 Added support for TCL_LIBRARY environment variable:  use
  501 it as library location if it's present.
  502 
  503 142. 12/9/92 Added "info complete" command, Tcl_CommandComplete procedure.
  504 
  505 143. 12/16/92 Changed the Makefile to check to make sure "config" has been
  506 run (can't run config directly from the Makefile because it modifies the
  507 Makefile;  thus make has to be run again after running config).
  508 
  509 ----------------- Released version 6.5, 12/17/92 ------------------
  510 
  511 144. 12/21/92 Changed config to look in several places for libc file.
  512 
  513 145. 12/23/92 Added "elseif" support to if.  Also, "then", "else", and
  514 "elseif" may no longer be abbreviated.
  515 *** POTENTIAL INCOMPATIBILITY ***
  516 
  517 146. 12/28/92 Changed "puts" and "read" to support initial "-nonewline"
  518 switch instead of additional "nonewline" argument.  The old form is
  519 still supported, but it is discouraged and is no longer documented.
  520 Also changed "puts" to make the file argument default to stdout: e.g.
  521 "puts foo" will print foo on standard output.
  522 
  523 147. 1/6/93 Fixed bug whereby backslash-newline wasn't working when
  524 typed interactively, or in "info complete".
  525 
  526 148. 1/22/93 Fixed bugs in "lreplace" and "linsert" where close
  527 quotes were being lost from last element before replacement or
  528 insertion.
  529 
  530 149. 1/29/93 Fixed bug in Tcl_AssembleCmd where it wasn't requiring
  531 a newline at the end of a line before considering a command to be
  532 complete.  The bug caused some very long lines in script files to
  533 be processed as multiple separate commands.
  534 
  535 150. 1/29/93 Various changes in Makefile to add more configuration
  536 options, simplify installation, fix bugs (e.g. don't use -f switch
  537 for cp), etc.
  538 
  539 151. 1/29/93 Changed "name1" and "name2" identifiers to "part1" and
  540 "part2" to avoid name conflicts with stupid C++ implementations that
  541 use "name1" and "name2" in a reserved way.
  542 
  543 152. 2/1/93 Added "putenv" procedure to replace the standard system
  544 version so that it will work correctly with Tcl's environment handling.
  545 
  546 ----------------- Released version 6.6, 2/5/93 ------------------
  547 
  548 153. 2/10/93 Fixed bugs in config script:  missing "endif" in libc loop,
  549 and tried to use strncasecmp.c instead of strcasecmp.c.
  550 
  551 154. 2/10/93 Makefile improvements:  added RANLIB variable for easier
  552 Sys-V configuration, added SHELL variable for SGI systems.
  553 
  554 ----------------- Released version 6.7, 2/11/93 ------------------
  555 
  556 153. 2/6/93 Changes in backslash processing:
  557     - \Cx, \Mx, \CMx, \e sequences no longer special
  558     - \<newline> also eats up any space after the newline, replacing
  559       the whole sequence with a single space character
  560     - Hex sequences like \x24 are now supported, along with ANSI C's \a.
  561     - "format" no longer does backslash processing on its format string
  562     - there is no longer any special meaning to a 0 return value from
  563       Tcl_Backslash
  564     - unknown backslash sequences, like (e.g. \*), are replaced with
  565       the following character (e.g. *), instead of just treating the
  566       backslash as an ordinary character.
  567 *** POTENTIAL INCOMPATIBILITY ***
  568 
  569 154. 2/6/93 Updated all copyright notices.  The meaning hasn't changed
  570 at all but the wording does a better job of protecting U.C. from
  571 liability (according to U.C. lawyers, anyway).
  572 
  573 155. 2/6/93 Changed "regsub" so that it overwrites the result variable
  574 in all cases, even if there is no match.
  575 *** POTENTIAL INCOMPATIBILITY ***
  576 
  577 156. 2/8/93 Added support for XPG3 %n$ conversion specifiers to "format"
  578 command.
  579 
  580 157. 2/17/93 Fixed bug in Tcl_Eval where errors due to infinite
  581 recursion could result in core dumps.
  582 
  583 158. 2/17/93 Improved the auto-load mechanism to deal gracefully (i.e.
  584 return an error) with a situation where a library file that supposedly
  585 defines a procedure doesn't actually define it.
  586 
  587 159. 2/17/93 Renamed Tcl_UnixError procedure to Tcl_PosixError, and
  588 changed errorCode variable usage to use POSIX as keyword instead of
  589 UNIX.
  590 *** POTENTIAL INCOMPATIBILITY ***
  591 
  592 160. 2/19/93 Changes to exec and process control:
  593     - Added support for >>, >&, >>&, |&, <@, >@, and >&@ forms of redirection.
  594     - When exec puts processes into background, it returns a list of
  595       their pids as result.
  596     - Added support for <file, >file, etc. (i.e. no space between
  597       ">" and file name.
  598     - Added -keepnewline option.
  599     - Deleted Tcl_Fork and Tcl_WaitPids procedures (just use fork and
  600       waitpid instead).
  601     - Added waitpid compatibility procedure for systems that don't have
  602       it.
  603     - Added Tcl_ReapDetachedProcs procedure.
  604     - Changed "exec" to return an error if there is stderr output, even
  605       if the command returns a 0 exit status (it's always been documented
  606       this way, but the implementation wasn't correct).
  607     - If a process returns a non-zero exit status but doesn't generate
  608       any diagnostic output, then Tcl generates an error message for it.
  609 *** POTENTIAL INCOMPATIBILITY ***
  610 
  611 161. 2/25/93 Fixed two memory-management problems having to do with
  612 managing the old result during variable trace callbacks.
  613 
  614 162. 3/1/93 Added dynamic string library:  Tcl_DStringInit, Tcl_DStringAppend,
  615 Tcl_DStringFree, Tcl_DStringResult, etc.
  616 
  617 163. 3/1/93 Modified glob command to only return the names of files that
  618 exist, and to only return names ending in "/" if the file is a directory.
  619 *** POTENTIAL INCOMPATIBILITY ***
  620 
  621 164. 3/19/93 Modified not to use system calls like "read" directly,
  622 but instead to use special Tcl procedures that retry automatically
  623 if interrupted by signals.
  624 
  625 165. 4/3/93 Eliminated "noSep" argument to Tcl_AppendElement, plus
  626 TCL_NO_SPACE flag for Tcl_SetVar and Tcl_SetVar2.
  627 *** POTENTIAL INCOMPATIBILITY ***
  628 
  629 166. 4/3/93 Eliminated "flags" and "termPtr" arguments to Tcl_Eval.
  630 *** POTENTIAL INCOMPATIBILITY ***
  631 
  632 167. 4/3/93 Changes to expressions:
  633     - The "expr" command now accepts multiple arguments, which are
  634       concatenated together with space separators.
  635     - Integers aren't automatically promoted to floating-point if they
  636       overflow the word size:  errors are generated instead.
  637     - Tcl can now handle "NaN" and other special values if the underlying
  638       library procedures handle them.
  639     - When printing floating-point numbers, Tcl ensures that there is a "."
  640       or "e" in the number, so it can't be treated as an integer accidentally.
  641       The procedure Tcl_PrintDouble is available to provide this function
  642       in other contexts.  Also, the variable "tcl_precision" can be used
  643       to set the precision for printing (must be a decimal number giving
  644       digits of precision).
  645     - Expressions now support transcendental and other functions, e.g. sin,
  646       acos, hypot, ceil, and round.  Can add new math functions with
  647       Tcl_CreateMathFunc().
  648     - Boolean expressions can now have any of the string values accepted
  649       by Tcl_GetBoolean, such as "yes" or "no".
  650 *** POTENTIAL INCOMPATIBILITY ***
  651 
  652 168. 4/5/93 Changed Tcl_UnsetVar and Tcl_UnsetVar2 to return TCL_OK
  653 or TCL_ERROR instead of 0 or -1.
  654 *** POTENTIAL INCOMPATIBILITY ***
  655 
  656 169. 4/5/93 Eliminated Tcl_CmdBuf structure and associated procedures;
  657 can use Tcl_DStrings instead.
  658 *** POTENTIAL INCOMPATIBILITY ***
  659 
  660 170. 4/8/93 Changed interface to Tcl_TildeSubst to use a dynamic
  661 string for buffer space.  This makes the procedure re-entrant and
  662 thread-safe, whereas it wasn't before.
  663 *** POTENTIAL INCOMPATIBILITY ***
  664 
  665 171. 4/14/93 Eliminated tclHash.h, and moved everything from it to
  666 tcl.h
  667 *** POTENTIAL INCOMPATIBILITY ***
  668 
  669 172. 4/15/93 Eliminated Tcl_InitHistory, made "history" command always
  670 be part of interpreter.
  671 *** POTENTIAL INCOMPATIBILITY ***
  672 
  673 173. 4/16/93 Modified "file" command so that "readable" option always
  674 exists, even on machines that don't support symbolic links (always returns
  675 same error as if the file wasn't a symbolic link).
  676 
  677 174. 4/26/93 Fixed bugs in "regsub" where ^ patterns didn't get handled
  678 right (pretended not to match when it really did, and looped infinitely
  679 if -all was specified).
  680 
  681 175. 4/29/93 Various improvements in the handling of variables:
  682     - Can create variables and array elements during a read trace.
  683     - Can delete variables during traces (note: unset traces will be
  684       invoked when this happens).
  685     - Can upvar to array elements.
  686     - Can retarget an upvar to another variable by re-issuing the
  687       upvar command with a different "other" variable.
  688 
  689 176. 5/3/93 Added Tcl_GetCommandInfo, which returns info about a Tcl
  690 command such as whether it exists and its ClientData.  Also added
  691 Tcl_SetCommandInfo, which allows any of this information to be modified
  692 and also allows a command's delete procedure to have a different
  693 ClientData value than its command procedure.
  694 
  695 177. 5/5/93 Added Tcl_RegExpMatch procedure.
  696 
  697 178. 5/6/93 Fixed bug in "scan" where it didn't properly handle
  698 %% conversion specifiers.  Also changed "scan" to use Tcl_PrintDouble
  699 for printing real values.
  700 
  701 179. 5/7/93 Added "-exact", "-glob", and "-regexp" options to "lsearch"
  702 command to allow different kinds of pattern matching.
  703 
  704 180. 5/7/93 Added many new switches to "lsort" to control the sorting
  705 process: "-ascii", "-integer", "-real", "-command", "-increasing",
  706 and "-decreasing".
  707 
  708 181. 5/10/93 Changes to file I/O:
  709     - Modified "open" command to support a list of POSIX access flags
  710       like {WRONLY CREAT TRUNC} in addition to current fopen-style
  711       access modes.  Also added "permissions" argument to set permissions
  712       of newly-created files.
  713     - Fixed Scott Bolte's bug (can close stdin etc. in application and
  714       then re-open them with Tcl commands).
  715     - Exported access to Tcl's file table with new procedures Tcl_EnterFile
  716       and Tcl_GetOpenFile.
  717 
  718 182. 5/15/93 Added new "pid" command, which can be used to retrieve
  719 either the current process id or a list of the process ids in a
  720 pipeline opened with "open |..."
  721 
  722 183. 6/3/93 Changed to use GNU autoconfig for configuration instead of
  723 the home-brew "config" script.  Also made many other configuration-related
  724 changes, such as using <unistd.h> instead of explicitly declaring system
  725 calls in tclUnix.h.
  726 
  727 184. 6/4/93 Fixed bug where core-dumps could occur if a procedure
  728 redefined itself (the memory for the procedure's body could get
  729 reallocated in the middle of evaluating the body);  implemented
  730 simple reference count mechanism.
  731 
  732 185. 6/5/93 Changed tclIndex file format in two ways:  (a) it's now
  733 eval-ed instead of parsed, which makes it 3-4x faster; (b) the entries
  734 in auto_index are now commands to evaluate, which allows commands to
  735 be loaded in different ways such as dynamic-loading of C code.  The
  736 old tclIndex file format is still supported.
  737 
  738 186. 6/7/93 Eliminated tclTest program, added new "tclsh" program
  739 that is more like wish (allows script files to be invoked automatically
  740 using "#!/usr/local/bin/tclsh", makes arguments available to script,
  741 etc.).  Added support for Tcl_AppInit plus default version;  this
  742 allows new Tcl applications to be created without modifying the
  743 main program for tclsh.
  744 
  745 187. 6/7/93 Fixed bug in TclWordEnd that kept backslash-newline from
  746 working correctly in some cases during interactive input.
  747 
  748 188. 6/9/93 Added Tcl_LinkVar and related procedures, which automatically
  749 keep a Tcl variable in sync with a C variable.
  750 
  751 189. 6/16/93 Increased maximum nesting depth from 100 to 1000.
  752 
  753 190. 6/16/93 Modified "trace var" command so that error messages from
  754 within traces are returned properly as the result of the variable
  755 access, instead of the generic "access disallowed by trace command"
  756 message.
  757 
  758 191. 6/16/93 Added Tcl_CallWhenDeleted to provide callbacks when an
  759 interpreter is deleted (same functionality as Tcl_WatchInterp, which
  760 used to exist in versions before 6.0).
  761 
  762 193. 6/16/93 Added "-code" argument to "return" command;  it's there
  763 primarily for completeness, so that procedures implementing control
  764 constructs can reflect exceptional conditions back to their callers.
  765 
  766 194. 6/16/93 Split up Tcl.n to make separate manual entries for each
  767 Tcl command.  Tcl.n now contains a summary of the language syntax.
  768 
  769 195. 6/17/93 Added new "switch" command to replace "case": allows
  770 alternate forms of pattern matching (exact, glob, regexp), replaces
  771 pattern lists with single patterns (but you can use "-" bodies to
  772 share one body among several patterns), eliminates "in" noise word.
  773 "Case" command is now obsolete.
  774 
  775 196. 6/17/93 Changed the "exec", "glob", "regexp", and "regsub" commands
  776 to include a "--" switch.  All initial arguments starting with "-" are now
  777 treated as switches unless a "--" switch is present to end the list.
  778 *** POTENTIAL INCOMPATIBILITY ***
  779 
  780 197. 6/17/93 Changed auto-exec so that the subprocess gets stdin, stdout,
  781 and stderr from the parent.  This allows truly interactive sub-processes
  782 (e.g. vi) to be auto-exec'ed from a tcl shell command line.
  783 
  784 198. 6/18/93 Added patchlevel.h, for use in coordinating future patch
  785 releases, and also added "info patchlevel" command to make the patch
  786 level available to Tcl scripts.
  787 
  788 199. 6/19/93 Modified "glob" command so that a leading "//" in a name
  789 gets left as is (this is needed for systems like Apollos where "//" is
  790 the super-root;  Tcl used to collapse the two slashes into a single
  791 slash).
  792 
  793 200. 7/7/93 Added Tcl_SetRecursionLimit procedure so that the maximum
  794 allowable nesting depth can be controlled for an interpreter from C.
  795 
  796 ----------------- Released version 7.0 Beta 1, 7/9/93 ------------------
  797 
  798 201. 7/12/93 Modified Tcl_GetInt and tclExpr.c so that full-precision
  799 unsigned integers can be specified without overflow errors.
  800 
  801 202. 7/12/93 Configuration changes:  eliminate leading blank line in
  802 configure script;  provide separate targets in Makefile for installing
  803 binary and non-binary information; check for size_t and a few other
  804 potentially missing typedefs; don't put tclAppInit.o into libtcl.a;
  805 better checks for matherr support.
  806 
  807 203. 7/14/93 Changed tclExpr.c to check the termination pointer before
  808 errno after strtod calls, to avoid problems with some versions of
  809 strtod that set errno in unexpected ways.
  810 
  811 204. 7/16/93 Changed "scan" command to be more ANSI-conformant:
  812 eliminated %F, %D, etc., added code to ignore "l", "h", and "L"
  813 modifiers but always convert %e, %f, and %g with implicit "l";
  814 also added support for %u and %i.  Also changed "format" command
  815 to eliminate %D, %U, %O, and add %i.
  816 *** POTENTIAL INCOMPATIBILITY ***
  817 
  818 205. 7/17/93 Changed "uplevel" and "upvar" so that they can be used
  819 from global level to global level:  this used to generate an error.
  820 
  821 206. 7/19/93 Renamed "setenv", "putenv", and "unsetenv" procedures
  822 to avoid conflicts with system procedures with the same names.  If
  823 you want Tcl's procedures to override the system procedures, do it
  824 in the Makefile (instructions are in the Makefile).
  825 *** POTENTIAL INCOMPATIBILITY ***
  826 
  827 ----------------- Released version 7.0 Beta 2, 7/21/93 ------------------
  828 
  829 207. 7/21/93 Fixed bug in tclVar.c where freed memory was accidentally
  830 used if a procedure returned an element of a local array.
  831 
  832 208. 7/22/93 Fixed bug in "unknown" where it didn't properly handle
  833 errors occurring in the "auto_load" procedure, leaving its state
  834 inconsistent.
  835 
  836 209. 7/23/93 Changed exec's ">2" redirection operator to "2>" for
  837 consistency with sh.  This is incompatible with earlier beta releases
  838 of 7.0 but not with pre-7.0 releases, which didn't support either
  839 operator.
  840 
  841 210. 7/28/93 Changed backslash-newline handling so that the resulting
  842 space character *is* treated as a word separator unless the backslash
  843 sequence is in quotes or braces.  This is incompatible with 7.0b1
  844 and 7.0b2 but is more compatible with pre-7.0 versions that the b1
  845 and b2 releases were.
  846 
  847 211. 7/28/93 Eliminated Tcl_LinkedVarWritable, added TCL_LINK_READ_ONLY to
  848 Tcl_LinkVar to accomplish same purpose.  This change is incompatible
  849 with earlier beta releases, but not with releases before Tcl 7.0.
  850 
  851 212. 7/29/93 Renamed regexp C functions so they won't clash with POSIX
  852 regexp functions that use the same name.
  853 
  854 213. 8/3/93 Added "-errorinfo" and "-errorcode" options to "return"
  855 command: these allow for much better handling of the errorInfo
  856 and errorCode variables in some cases.
  857 
  858 214. 8/12/93 Changed "expr" so that % always returns a remainder with
  859 the same sign as the divisor and absolute value smaller than the
  860 divisor.
  861 
  862 215. 8/14/93 Turned off auto-exec in "unknown" unless the command
  863 was typed interactively.  This means you must use "exec" when
  864 invoking subprocesses, unless it's a command that's typed interactively.
  865 *** POTENTIAL INCOMPATIBILITY ***
  866 
  867 216. 8/14/93 Added support for tcl_prompt1 and tcl_prompt2 variables
  868 to tclMain.c:  makes prompts user-settable.
  869 
  870 217. 8/14/93 Added asynchronous handlers (Tcl_AsyncCreate etc.) so
  871 that signals can be taken cleanly by Tcl applications.
  872 
  873 218. 8/16/93 Moved information about open files from the interpreter
  874 structure to global variables so that a file can be opened in one
  875 interpreter and read or written in another.
  876 
  877 219. 8/16/93 Removed ENV_FLAGS from Makefile, so that there's no
  878 official support for overriding setenv, unsetenv, and putenv.
  879 
  880 220. 8/20/93 Various configuration improvements:  coerce chars
  881 to unsigned chars before using macros like isspace;  source ~/.tclshrc
  882 file during initialization if it exists and program is running
  883 interactively;  allow there to be directories in auto_path that don't
  884 exist or don't have tclIndex files (ignore them); added Tcl_Init
  885 procedure and changed Tcl_AppInit to call it.
  886 
  887 221. 8/21/93 Fixed bug in expr where "+", "-", and " " were all
  888 getting treated as integers with value 0.
  889 
  890 222. 8/26/93 Added "tcl_interactive" variable to tclsh.
  891 
  892 223. 8/27/93 Added procedure Tcl_FilePermissions to return whether a
  893 given file can be read or written or both.  Modified Tcl_EnterFile
  894 to take a permissions mask rather than separate read and write arguments.
  895 
  896 224. 8/28/93 Fixed performance bug in "glob" command (unnecessary call
  897 to "access" for each file caused a 5-10x slow-down for big directories).
  898 
  899 ----------------- Released version 7.0 Beta 3, 8/28/93 ------------------
  900 
  901 225. 9/9/93 Renamed regexp.h to tclRegexp.h to avoid conflicts with system
  902 include file by same name.
  903 
  904 226. 9/9/93 Added Tcl_DontCallWhenDeleted.
  905 
  906 227. 9/16/93 Changed not to call exit C procedure directly;  instead
  907 always invoke "exit" Tcl command so that application can redefine the
  908 command to do additional cleanup.
  909 
  910 228. 9/17/93 Changed auto-exec to handle names that contain slashes
  911 (i.e. don't use PATH for them).
  912 
  913 229. 9/23/93 Fixed bug in "read" and "gets" commands where they didn't
  914 clear EOF conditions.
  915 
  916 ----------------- Released version 7.0, 9/29/93 ------------------
  917 
  918 230. 10/7/93 "Scan" command wasn't properly aligning things in memory,
  919 so segmentation faults could arise under some circumstances.
  920 
  921 231. 10/7/93 Fixed bug in Tcl_ConvertElement where it forgot to
  922 backslash leading curly brace when creating lists.
  923 
  924 232. 10/7/93 Eliminated dependency of tclMain.c on tclInt.h and
  925 tclUnix.h, so that people can copy the file out of the Tcl source
  926 directory to make modified private versions.
  927 
  928 233. 10/8/93 Fixed bug in auto-loader that reversed the priority order
  929 of entries in auto_path for new-style index files.  Now things are
  930 back to the way they were before 3.0:  first in auto_path is always
  931 highest priority.
  932 
  933 234. 10/13/93 Fixed bug where Tcl_CommandComplete didn't recognize
  934 comments and treat them as such.  Thus if you typed the line
  935     # {
  936 interactively, Tcl would think that the command wasn't complete and
  937 wait for more input before evaluating the script.
  938 
  939 235. 10/14/93 Fixed bug where "regsub" didn't set the output variable
  940 if the input string was empty.
  941 
  942 236. 10/23/93 Fixed bug where Tcl_CreatePipeline didn't close off enough
  943 file descriptors in child processes, causing children not to exit
  944 properly in some cases.
  945 
  946 237. 10/28/93 Changed "list" and "concat" commands not to generate
  947 errors if given zero arguments, but instead to just return an empty
  948 string.
  949 
  950 ----------------- Released version 7.1, 11/4/93 ------------------
  951 
  952 Note: there is no 7.2 release.  It was flawed and was thus withdrawn
  953 shortly after it was released.
  954 
  955 238. 11/10/93 TclMain.c didn't compile on some systems because of
  956 R_OK in call to "access".  Changed to eliminate call to "access".
  957 
  958 ----------------- Released version 7.3, 11/26/93 ------------------
  959 
  960 239. 11/6/93 Modified "lindex", "linsert", "lrange", and "lreplace"
  961 so that "end" can be specified as an index.
  962 
  963 240. 11/6/93 Modified "append" and "lappend" to allow only two
  964 words total (i.e., nothing to append) without generating an error.
  965 
  966 241. 12/2/93 Changed to use EAGAIN as the errno for non-blocking
  967 I/O instead of EWOULDBLOCK:  this should fix problem where non-blocking
  968 I/O didn't work correctly on System-V systems.
  969 
  970 242. 12/22/93 Fixed bug in expressions where cancelled evaluation
  971 wasn't always working correctly (e.g. "set one 1; eval {1 || 1/$one}"
  972 failed with a divide by zero error).
  973 
  974 243. 1/6/94 Changed TCL_VOLATILE definition from -1 to the address of
  975 a dummy procedure Tcl_Volatile, since -1 causes portability problems on
  976 some machines (e.g., Crays).
  977 
  978 244. 2/4/94 Added support for unary plus.
  979 
  980 245. 2/17/94 Changed Tcl_RecordAndEval and "history" command to
  981 call Tcl_GlobalEval instead of Tcl_Eval.  Otherwise, invocation of
  982 these facilities in nested procedures can cause unwanted results.
  983 
  984 246. 2/17/94 Fixed bug in tclExpr.c where an expression such as
  985 "expr {"12398712938788234-1298379" != ""}" triggers an integer
  986 overflow error for the number in quotes, even though it isn't really
  987 a proper integer anyway.
  988 
  989 247. 2/19/94 Added new procedure Tcl_DStringGetResult to move result
  990 from interpreter to a dynamic string.
  991 
  992 248. 2/19/94 Fixed bug in Tcl_DStringResult that caused it to overwrite
  993 the contents of a static result in some situations.  This can cause
  994 bizarre errors such as variables suddenly having empty values.
  995 
  996 249. 2/21/94 Fixed bug in Tcl_AppendElement, Tcl_DStringAppendElement,
  997 and the "lappend" command that caused improper omission of a separator
  998 space in some cases.  For example, the script
  999     set x "abc{"; lappend x "def"
 1000 used to return the result "abc{def" instead of "abc{ def".
 1001 
 1002 250. 3/3/94 Tcl_ConvertElement was outputting empty elements as \0 if
 1003 TCL_DONT_USE_BRACES was set.  This depends on old pre-7.0 meaning of
 1004 \0, which is no longer in effect, so it didn't really work.  Changed
 1005 to output empty elements as {} always.
 1006 
 1007 251. 3/3/94 Renamed Tcl_DStringTrunc to Tcl_DStringSetLength and extended
 1008 it so that it can be used to lengthen a string as well as shorten it.
 1009 Tcl_DStringTrunc is defined as a macro for backward compatibility, but
 1010 it is deprecated.
 1011 
 1012 252. 3/3/94 Added Tcl_AllowExceptions procedure.
 1013 
 1014 253. 3/13/94 Fixed bug in Tcl_FormatCmd that could cause "format"
 1015 to mis-behave on 64-bit Big-Endian machines.
 1016 
 1017 254. 3/13/94 Changed to use vfork instead of fork on systems where
 1018 vfork exists.
 1019 
 1020 255. 3/23/94 Fixed bug in expressions where ?: didn't associate
 1021 right-to-left as they should.
 1022 
 1023 256. 4/3/94 Fixed "exec" to flush any files used in >@ or >&@
 1024 redirection in exec, so that data buffered for them is written
 1025 before any new data added by the subprocess.
 1026 
 1027 257. 4/3/94 Added "subst" command.
 1028 
 1029 258. 5/20/94 The tclsh main program is now called Tcl_Main;  tclAppInit.c
 1030 has a "main" procedure that calls Tcl_Main.  This makes it easier to use
 1031 Tcl with C++ programs, which need their own main programs, and it also
 1032 allows an application to prefilter the argument list before calling
 1033 Tcl_Main.
 1034 *** POTENTIAL INCOMPATIBILITY ***
 1035 
 1036 259. 6/6/94 Fixed bug in procedure returns where the errorInfo variable
 1037 could get truncated if an unset trace was invoked as part of returning
 1038 from the procedure.
 1039 
 1040 260. 6/13/94 Added "wordstart" and "wordend" options to "string" command.
 1041 
 1042 261. 6/27/94 Fixed bug in expressions where they didn't properly cancel
 1043 the evaluation of math functions in &&, ||, and ?:.
 1044 
 1045 262. 7/11/94 Incorrect boolean values, like "ogle", weren't being
 1046 handled properly.
 1047 
 1048 263. 7/15/94 Added Tcl_RegExpCompile, Tcl_RegExpExec, and Tcl_RegExpRange,
 1049 which provide lower-level access to regular expression pattern matching.
 1050 
 1051 264. 7/22/94 Fixed bug in "glob" command where "glob -nocomplain ~bad_user"
 1052 would complain about a missing user.  Now it doesn't complain anymore.
 1053 
 1054 265. 8/4/94 Fixed bug with linked variables where they didn't behave
 1055 correctly when accessed via upvars.
 1056 
 1057 266. 8/17/94 Fixed bug in Tcl_EvalFile where it didn't clear interp->result.
 1058 
 1059 267. 8/31/94 Modified "open" command so that errors in exec-ing
 1060 subprocesses are returned by the open immediately, rather than
 1061 being delayed until the "close" is executed.
 1062 
 1063 268. 9/9/94 Modified "expr" command to generate errors for integer
 1064 overflow (includes addition, subtraction, negation, multiplication,
 1065 division).
 1066 
 1067 269. 9/23/94 Modified "regsub" to return a count of the number of
 1068 matches and replacements, rather than 0/1.
 1069 
 1070 279. 10/4/94 Added new features to "array" command:
 1071     - added "get" and "set" commands for easy conversion between arrays
 1072       and lists.
 1073     - added "exists" command to see if a variable is an array, changed
 1074       "names" and "size" commands to treat a non-existent array (or scalar
 1075       variable) just like an empty one.
 1076     - added pattern option to "names" command.
 1077 
 1078 280. 10/6/94 Modified Tcl_SetVar2 so that read traces on variables get
 1079 called during append operations.
 1080 
 1081 281. 10/20/94 Fixed bug in "read" command where reading from stdin
 1082 required two control-D's to stop the reading.
 1083 
 1084 282. 11/3/94 Changed "expr" command to use longs for division just like
 1085 all other expr operators;  it previously used ints for division.
 1086 
 1087 283. 11/4/94 Fixed bugs in "unknown" procedure:  it wasn't properly
 1088 handling exception returns from commands that were executed after
 1089 being auto-loaded.
 1090 
 1091 ----------------- Released version 7.4b1, 12/23/94 ------------------
 1092 
 1093 284. 12/26/94 Fixed "install" target in Makefile (couldn't always
 1094 find install program).
 1095 
 1096 285. 12/26/94 Added strcncasecmp procedure to compat directory.
 1097 
 1098 286. 1/3/95 Fixed all procedure calls to explicitly cast arguments:
 1099 implicit conversions from prototypes (especially integer->double)
 1100 don't work when compiling under non-ANSI compilers.  Tcl is now clean
 1101 under gcc -Wconversion.
 1102 
 1103 287. 1/4/95 Fixed problem in Tcl_ArrayCmd where same name was used for
 1104 both a label and a variable;  caused problems on several older compilers,
 1105 making array command misbehave and causing many errors in Tcl test suite.
 1106 
 1107 ----------------- Released version 7.4b2, 1/12/95 ------------------
 1108 
 1109 288. 2/9/95 Modified Tcl_CreateCommand to return a token, and added
 1110 Tcl_GetCommandName procedure.  Together, these procedures make it possible
 1111 to track renames of a command.
 1112 
 1113 289. 2/13/95 Fixed bug in expr where "089" was interpreted as a
 1114 floating-point number rather than a bogus octal number.
 1115 *** POTENTIAL INCOMPATIBILITY ***
 1116 
 1117 290. 2/14/95 Added code to Tcl_GetInt and Tcl_GetDouble to check for
 1118 overflows when reading in numbers.
 1119 
 1120 291. 2/18/95 Changed "array set" to stop after first error, rather than
 1121 continuing after error.
 1122 
 1123 292. 2/20/95 Upgraded to use autoconf version 2.2.
 1124 
 1125 293. 2/20/95 Fixed core dump that could occur in "scan" command if a
 1126 close bracket was omitted.
 1127 
 1128 294. 2/27/95 Changed Makefile to always use install-sh for installations:
 1129 there's just too much variation among "install" system programs, which
 1130 makes installation flakey.
 1131 
 1132 ----------------- Released version 7.4b3, 3/24/95 ------------------
 1133 
 1134 3/25/95 (bug fix) Changed "install" to "./install" in Makefile so that
 1135 "make install" will work even when "." isn't in the search path.
 1136 
 1137 3/29/95 (bug fix) Fixed bug where the auto-loading mechanism wasn't
 1138 protecting the values of the errorCode and errorInfo variables.
 1139 
 1140 3/29/95 (new feature) Added optional pattern argument to "parray" procedure.
 1141 
 1142 3/29/95 (bug fix) Made the full functionality of
 1143     "return -code ... -errorcode ..."
 1144 work not just inside procedures, but also in sourced files and at
 1145 top level.
 1146 
 1147 4/6/95 (new feature) Added "pattern" option to "array names" command.
 1148 
 1149 4/18/95 (bug fix) Fixed bug in parser where it didn't allow backslash-newline
 1150 immediately after an argument in braces or quotes.
 1151 
 1152 4/19/95 (new feature) Added tcl_library variable, which application can
 1153 set to override default library directory.
 1154 
 1155 4/30/95 (bug fix) During trace callbacks for array elements, the variable
 1156 name used in the original reference would be temporarily modified to
 1157 separate the array name and element name;  if the trace callback used
 1158 the same name string, it would get the wrong name (the array name without
 1159 element).  Fixed to restore the variable name before making trace
 1160 callbacks.
 1161 
 1162 4/30/95 (new feature) Added -nobackslashes, -nocommands, and -novariables
 1163 switches to "subst" command.
 1164 
 1165 5/4/95 (new feature) Added TCL_EVAL_GLOBAL flag to Tcl_RecordAndEval.
 1166 
 1167 5/5/95 (bug fix)  Format command would overrun memory when printing
 1168 integers with very large precision, as in "format %.1000d 0".
 1169 
 1170 5/5/95 (portability improvement) Changed to use BSDgettimeofday on
 1171 IRIX machines, to avoid compilation problems with the gettimeofday
 1172 declaration.
 1173 
 1174 5/6/95 (bug fix) Changed manual entries to use the standard .TH
 1175 macro instead of a custom .HS macro;  the .HS macro confuses index
 1176 generators like makewhatis.
 1177 
 1178 5/9/95 (bug fix) Modified configure script to check for Solaris bug
 1179 that makes vfork unreliable (core dumps result if vforked child
 1180 changes a signal handler);  will use fork instead of vfork if the
 1181 bug is present.
 1182 
 1183 6/5/95 (bug fix) Modified "lsort" command to disallow recursive calls
 1184 to lsort from a comparison function.  This is needed because qsort
 1185 is not reentrant.
 1186 
 1187 6/5/95 (bug fix) Undid change 243 above:  changed TCL_VOLATILE and
 1188 TCL_DYNAMIC back to integer constants rather than procedure addresses.
 1189 This was needed because procedure addresses can have multiple values
 1190 under some dynamic loading systems (e.g. SunOS 4.1 and Windows).
 1191 
 1192 6/8/95 (feature change) Modified interface to Tcl_Main to pass in the
 1193 address of the application-specific initialization procedure.
 1194 Tcl_AppInit is no longer hardwired into Tcl_Main.  This is needed
 1195 in order to make Tcl a shared library.
 1196 
 1197 6/8/95 (feature change) Modified Makefile so that the installed versions
 1198 of tclsh and libtcl.a have version number in them (e.g. tclsh7.4 and
 1199 libtcl7.4.a) and the library directory name also has an embedded version
 1200 number (e.g., /usr/local/lib/tcl7.4).  This should make it easier for
 1201 Tcl 7.4 to coexist with earlier versions.
 1202 
 1203 ----------------- Released version 7.4b4, 6/16/95 ------------------
 1204 
 1205 6/19/95 (bug fix) Fixed bugs in tclCkalloc.c that caused core dumps
 1206 if TCL_MEM_DEBUG was enabled on word-addressed machines such as Crays.
 1207 
 1208 6/21/95 (feature removal) Removed overflow checks for integer arithmetic:
 1209 they just cause too much trouble (e.g. for random  number generators).
 1210 
 1211 6/28/95 (new features) Added tcl_patchLevel and tcl_version variables,
 1212 for consistency with Tk.
 1213 
 1214 6/29/95 (bug fix) Fixed problem in Tcl_Eval where it didn't record
 1215 the right termination character if a script ended with a comment.  This
 1216 caused erroneous output for the following command, among others:
 1217 puts "[
 1218 expr 1+1
 1219 # duh!
 1220 ]"
 1221 
 1222 6/29/95 (message change) Changed the error message for ECHILD slightly
 1223 to provide a hint about why the problem is occurring.
 1224 
 1225 ----------------- Released version 7.4, 7/1/95 ------------------
 1226 
 1227 7/18/95 (bug fix) Changed "lreplace" so that nothing is deleted if
 1228 the last index is less than the first index or if the last index
 1229 is < 0.
 1230 
 1231 7/18/95 (bug fix) Fixed bugs with backslashes in comments:
 1232 Tcl_CommandComplete (and "info complete") didn't properly handle
 1233 strings ending in backslash-newline, and neither Tcl_CommandComplete
 1234 nor the Tcl parser handled other backslash sequences right, such
 1235 as two backslashes before a newline.
 1236 
 1237 7/19/95 (bug fix) Modified Tcl_DeleteCommand to delete the hash table
 1238 entry for the command before invoking its callback.  This is needed in
 1239 order to deal with reentrancy.
 1240 
 1241 7/22/95 (bug fix) "exec" wasn't reaping processes correctly after
 1242 certain errors (e.g. if the name of the executable was bogus, as
 1243 in "exec foobar").
 1244 
 1245 7/27/95 (bug fix) Makefile.in wasn't using the LIBS variable provided
 1246 by the "configure" script.  This caused problems on some SCO systems.
 1247 
 1248 7/27/95 (bug fix) The version of strtod in fixstrtod.c didn't properly
 1249 handle the case where endPtr == NULL.
 1250 
 1251 ----------------- Released patch 7.4p1, 7/29/95 -----------------------
 1252 
 1253 8/4/95 (bug fix) C-level trace callbacks for variables were sometimes
 1254 receiving the PART1_NOT_PARSED flag, which could cause errors in
 1255 subsequent Tcl library calls using the flags. (JO)
 1256 
 1257 8/4/95 (bug fix) Calls to toupper and tolower weren't using the
 1258 UCHAR macros, which caused trouble in non-U.S. locales. (JO)
 1259 
 1260 8/10/95 (new feature) Added the "load" command for dynamic loading of
 1261 binary packages, and the Tcl_PackageInitProc prototype for package
 1262 initialization procedures. (JO)
 1263 
 1264 8/23/95 (new features) Added "info sharedlibextension" and
 1265 "info nameofexecutable" commands, plus Tcl_FindExtension procedure. (JO)
 1266 
 1267 8/25/95 (bug fix) If the target of an "upvar" was non-existent but
 1268 had traces set, the traces were silently lost.  Change to generate
 1269 an error instead. (JO)
 1270 
 1271 8/25/95 (bug fix) Undid change from 7/19, so that commands can stay
 1272 around while their deletion callbacks execute.  Added lots of code to
 1273 handle all of the reentrancy problems that this opens up. (JO)
 1274 
 1275 8/25/95 (bug fix) Fixed core dump that could occur in TclDeleteVars
 1276 if there was an upvar from one entry in the table to the next entry
 1277 in the same table. (JO)
 1278 
 1279 8/28/95 (bug fix) Exec wasn't handling bad user names properly, as
 1280 in "exec ~bogus_user/foo". (JO)
 1281 
 1282 8/29/95 (bug fixes) Changed backslash-newline handling to correct two
 1283 problems:
 1284     - Only spaces and tabs following the backslash-newline are now
 1285       absorbed as part of the backslash-newline.  Newlinew are no
 1286       longer absorbed (add another backslash if you want to absorb
 1287       another newline).
 1288     - TclWordEnd returns the character just before the backslash in
 1289       the sequence as the end of the sequence;  it used to not consider
 1290       the backslash-newline as a word separator. (JO)
 1291 
 1292 8/31/95 (new feature) Changed man page installation (with "mkLinks"
 1293 script) to create additional links for manual pages corresponding to
 1294 each of the procedure and command names described in the pages. (JO)
 1295 
 1296 9/10/95 Reorganized Tcl sources for Windows and Mac ports.  All sources
 1297 are now in subdirectories:  "generic" contains sources that work on all
 1298 platforms, "windows", "mac", and "unix" directories contain platform-
 1299 specific sources.  Some UNIX sources are also used on other platforms. (SS)
 1300 
 1301 9/10/95 (feature change) Eliminated exported global variables (they
 1302 don't work with Windows DLLs).  Replaced tcl_AsyncReady and
 1303 tcl_FileCloseProc with procedures Tcl_AsyncReady() and
 1304 Tcl_SetFileCloseProc().  Replaced C variable tcl_RcFileName with
 1305 a Tcl variable tcl_rcFileName. (SS)
 1306 *** POTENTIAL INCOMPATIBILITY ***
 1307 
 1308 9/11/95 (new feature) Added procedure Tcl_SetPanicProc to override
 1309 the default implementation of "panic". (SS)
 1310 
 1311 9/11/95 (new feature) Added "interp" command to allow creation of
 1312 new interpreters and execution of untrusted scripts.  Added many new
 1313 procedures, such as Tcl_CreateSlave, Tcl_CreateAlias,and Tcl_MakeSafe,
 1314 to provide C-level access to the interpreter facility. This mechanism
 1315 now provides almost all of the generic functions of Borenstein's and
 1316 Rose's Safe-Tcl (but not any Tk or email-related stuff).  (JL)
 1317 
 1318 9/11/95 (feature change) Changed file management so that files are
 1319 no longer shared between interpreters:  a file cannot normally be
 1320 referenced in one interpreter if it was opened in another.  This
 1321 feature is needed to support safe interpreters.  Added Tcl_ShareHandle()
 1322 procedure for allowing files to be shared, and added "interp" argument
 1323 to Tcl_FilePermissions procedure. (JL)
 1324 *** POTENTIAL INCOMPATIBILITY ***
 1325 
 1326 9/11/95 (new feature) Added "AssocData" mechanism, whereby extensions
 1327 can associate their own data with an interpreter and get called back
 1328 when the interpreter is deleted.  This is visible at C level via the
 1329 procedures Tcl_SetAssocData and Tcl_GetAssocData.  (JL)
 1330 
 1331 9/11/95 (new feature) Added Tcl_ErrnoMsg to translate an errno value
 1332 into a human-readable string.  This is now used instead of calling
 1333 strerror because strerror mesages vary dramatically from platform
 1334 to platform, which messes up Tcl tests.  Tcl_ErrnoMsg uses the standard
 1335 POSIX messages for all the common signals, and calls strerror for
 1336 signals it doesn't understand.
 1337 
 1338 ----------------- Released patch 7.4p2, 9/15/95 -----------------------
 1339 
 1340 ----------------- Released 7.5a1, 9/15/95 -----------------------
 1341 
 1342 9/22/95 (bug fix) Changed auto_mkindex to create tclIndex files that
 1343 handle directories whose paths might contain spaces. (RJ)
 1344 
 1345 9/27/95 (bug fix) The "format" command didn't check for huge or negative
 1346 width specifiers, which could cause core dumps. (JO)
 1347 
 1348 9/27/95 (bug fix) Core dumps could occur if an interactive command typed
 1349 to tclsh returned a very long result for tclsh to print out.  The bug is
 1350 actually in printf (in Solaris 2.3 and 2.4, at least);  switched to use
 1351 puts instead.  (JO)
 1352 
 1353 9/28/95 (bug fix) Changed makefile.bc to eliminate a false dependency
 1354 for tcl1675.dll on the Borland run time library. (SS)
 1355 
 1356 9/28/95 (bug fix) Fixed tcl75.dll so it looks for tcl1675.dll instead
 1357 of tcl16.dll. (SS)
 1358 
 1359 9/28/95 (bug fix) Tcl was not correctly detecting the difference
 1360 between Win32s and Windows '95. (SS)
 1361 
 1362 9/28/95 (bug fix) "exec" was not passing environment changes to child
 1363 processes under Windows. (SS)
 1364 
 1365 9/28/95 (bug fix) Changed Tcl to ensure that open files are not passed
 1366 to child processes under Windows. (SS)
 1367 
 1368 9/28/95 (bug fix) Fixed Windows '95 and NT versions of exec so it can
 1369 handle both console and windows apps.   (SS)
 1370 
 1371 9/28/95 (bug fix) Fixed Windows version of exec so it no longer leaves
 1372 temp files lying around.  Also changed it so the temp files are
 1373 created in the appropriate system dependent temp directory. (SS)
 1374 
 1375 9/28/95 (bug fix) Eliminated source dependency on the Win32s Universal
 1376 Thunk header file, since it is not bundled with VC++. (SS)
 1377 
 1378 9/28/95 (bug fix) Under Windows, Tcl now constructs the HOME
 1379 environment variable from HOMEPATH and HOMEDRIVE when HOME is not
 1380 already set. (SS)
 1381 
 1382 9/28/95 (bug fix) Added support for "info nameofexecutable" and "info
 1383 sharedlibextension" to the Windows version. (SS)
 1384 
 1385 9/28/95 (bug fix) Changed tclsh to correctly parse command line
 1386 arguments so that backslashes are preserved under Windows. (SS)
 1387 
 1388 9/29/95 (bug fix) Tcl 7.5a1 treated either return or newline as end
 1389 of line in "gets", which caused lines ending in CRLF to be treated as
 1390 two separate lines.  Changed to allow only character as end-of-line:
 1391 carriage return on Macs, newline elsewhere. (JO)
 1392 
 1393 9/29/95 (new feature) Changed to install "configInfo" file in same
 1394 directory as library scripts.  It didn't used to get installed. (JO)
 1395 
 1396 9/29/95 (bug fix) Tcl was not converting Win32 errors into POSIX
 1397 errors under some circumstances. (SS)
 1398 
 1399 10/2/95 (bug fix) Safe interpreters no longer get initialized with
 1400 a call to Tcl_Init(). (JL)
 1401 
 1402 10/1/95 (new feature) Added "tcl_platform" global variable to provide
 1403 environment information such as the instruction set and operating
 1404 system. (JO)
 1405 
 1406 10/1/95 (bug fix) "exec" command wasn't always generating the
 1407 "child process exited abnormally" message when it should have.  (JO)
 1408 
 1409 10/2/95 (bug fix) Changed "mkLinks.tcl" so that the scripts it generates
 1410 won't create links that overwrite original manual entries (there was
 1411 a problem where pack-old.n was overwriting pack.n).  (JO)
 1412 
 1413 10/2/95 (feature change) Changed to use -ldl for dynamic loading under
 1414 Linux if it is available, but fall back to -ldld if it isn't.  (JO)
 1415 
 1416 10/2/95 (bug fix) File sharing was causing refcounts to reach 0
 1417 prematurely for stdin, stdout and stderr, under some circumstances. (JL)
 1418 
 1419 10/2/95 (platform support) Added support for Visual C++ compiler on
 1420 Windows, Windows '95 and Windows NT, code donated by Gordon Chaffee. (JL)
 1421 
 1422 10/3/95 (bug fix) Tcl now frees any libraries that it loads before it
 1423 exits. (SS)
 1424 
 1425 10/03/95 (bug fix) Fixed bug in Macintosh ls command where the -l
 1426 and -C options would fail in anything but the HOME directory. (RJ)
 1427 
 1428 ----------------- Released 7.5a2, 10/6/95 -----------------------
 1429 
 1430 10/10/95 (bug fix) "file dirnam /." was returning ":" on UNIX instead
 1431 of "/". (JO)
 1432 
 1433 10/13/95 (bug fix) Eliminated dependency on MKS toolkit for generating
 1434 the tcl.def file from Borland object files. (SS)
 1435 
 1436 10/17/95 (new features) Moved the event loop from Tcl to Tk, made major
 1437 revisions along the way:
 1438     - New Tcl commands:  after, update, vwait (replaces "tkwait variable").
 1439     - "tkerror" is now replaced with "bgerror".
 1440     - The following procedures are similar to their old Tk counterparts:
 1441       Tcl_DoOneEvent, Tcl_Sleep, Tcl_DoWhenIdle, Tcl_CancelIdleCall,
 1442       Tcl_CreateFileHandler, Tcl_DeleteFileHandler, Tcl_CreateTimerHandler,
 1443       Tcl_DeleteTimerHandler, Tcl_BackgroundError.
 1444     - Revised notifier, add new concept of "event source" with the following
 1445       procedures:  Tcl_CreateEventSource, Tcl_DeleteEventSource,
 1446       Tcl_WatchFile, Tcl_SetMaxBlockTime, Tcl_FileReady, Tcl_QueueEvent,
 1447       Tcl_WaitForEvent. (JO)
 1448 
 1449 10/31/95 (new features) Implemented cross platform file name support to make
 1450 it easier to write cross platform scripts.  Tcl now understands 4 file naming
 1451 conventions: Windows (both DOS and UNC), Mac, Unix, and Network.  The network
 1452 convention is a new naming mechanism that can be used to paths in a platform
 1453 independent fashion.  See the "file" command manual page for more details.
 1454 The primary interfaces changes are:
 1455     - All Tcl commands that expect a file name now accept both network and
 1456       native form.
 1457     - Two new "file" subcommands, "nativename" and "networkname", provide a
 1458       way to convert between network and native form.
 1459     - Renamed Tcl_TildeSubst to Tcl_TranslateFileName, and changed it so that
 1460       it always returns a filename in native form.  Tcl_TildeSubst is defined
 1461       as a macro for backward compatibility, but it is deprecated. (SS)
 1462 
 1463 11/5/95 (new feature) Made "tkerror" and "bgerror" synonyms, so that
 1464 either name can be used to manipulate the command (provides temporary
 1465 backward compatibility for existing scripts that use tkerror). (JO)
 1466 
 1467 11/5/95 (new feature) Added exit handlers and new C procedures
 1468 Tcl_CreateExitHandler, Tcl_DeleteExitHandler, and Tcl_Exit. (JO)
 1469 
 1470 11/6/95 (new feature) Added pid command for Macintosh version of
 1471 Tcl (it didn't previously exist on the Mac). (RJ)
 1472 
 1473 11/7/95 (new feature) New generic IO facility and support for IO to
 1474 files, pipes and sockets based on a common buffering scheme. Support
 1475 for asynchronous (non-blocking) IO and for event driver IO. Support
 1476 for automatic (background) asynchronous flushing and asynchronous
 1477 closing of channels. (JL)
 1478 
 1479 11/7/95 (new feature)  Added new commands "fconfigure" and "fblocked"
 1480 to support new I/O features such as nonblocking I/O.  Added "socket"
 1481 command for creating TCP client and server sockets. (JL).
 1482 
 1483 11/7/95 (new feature) Complete set of C APIs to the new generic IO
 1484 facility:
 1485     - Opening channels: Tcl_OpenFileChannel, Tcl_OpenCommandChannel,
 1486       Tcl_OpenTcpClient, Tcl_OpenTcpServer.
 1487     - I/O procedures on channels, which roughly mirror the ANSI C stdio
 1488       library:  Tcl_Read, Tcl_Gets, Tcl_Write, Tcl_Flush, Tcl_Seek,
 1489       Tcl_Tell, Tcl_Close, Tcl_Eof, Tcl_InputBlocked, Tcl_GetChannelOption,
 1490       Tcl_SetChannelOption.
 1491     - Extension mechanism for creating new kinds of channels:
 1492       Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
 1493       Tcl_GetChannelName, Tcl_GetChannelFile, Tcl_RegisterChannel,
 1494       Tcl_UnregisterChannel, Tcl_GetChannel.
 1495     - Event-driven I/O on channels: Tcl_CreateChannelHandler,
 1496       Tcl_DeleteChannelHandler. (JL)
 1497 
 1498 11/7/95 (new feature) Channel driver interface specification to allow
 1499 new types of channels to be added easily to Tcl. Currently being used
 1500 in three drivers - for files, pipes and TCP-based sockets. (JL).
 1501 
 1502 11/7/95 (new feature) interp delete now takes any number of path
 1503 names of interpreters to delete, including zero. (JL).
 1504 
 1505 11/8/95 (new feature) implemented 'info hostname' and Tcl_GetHostName
 1506 command to get host name of machine on which the Tcl process is running. (JL)
 1507 
 1508 11/9/95 (new feature) Implemented file APIs for access to low level files
 1509 on each system. The APIs are: Tcl_CloseFile, Tcl_OpenFile, Tcl_ReadFile,
 1510 Tcl_WriteFile and Tcl_SeekFile. Also implemented Tcl_WaitPid which waits
 1511 in a system dependent manner for a child process. (JL)
 1512 
 1513 11/9/95 (new feature) Added Tcl_UpdateLinkedVar procedure to force a
 1514 Tcl variable to be updated after its C variable changes. (JO)
 1515 
 1516 11/9/95 (bug fix) The glob command has been totally reimplemented so
 1517 that it can support different file name conventions.  It now handles
 1518 Windows file names (both UNC and drive-relative) properly.  It also
 1519 supports nested braces correctly now. (SS)
 1520 
 1521 11/13/95 (bug fix) Fixed Makefile.in so that configure can be run
 1522 from a clean directory separate from the Tcl source tree, and compilations
 1523 can be performed there. (JO)
 1524 
 1525 11/14/95 (bug fix) Fixed file sharing between interpreters and file
 1526 transferring between interpreters to correctly manage the refcount so that
 1527 files are closed when the last reference to them is discarded. (JL)
 1528 
 1529 11/14/95 (bug fix) Fixed gettimeofday implementation for the
 1530 Macintosh.  This fixes several timing related bugs. (RJ)
 1531 
 1532 11/17/95 (new feature) Added missing support for info nameofexecutable
 1533 on the Macintosh. (RJ)
 1534 
 1535 11/17/95 (bug fix) The Tcl variables argc argv and argv0 now return
 1536 something reasonable on the Mac.  (RJ)
 1537 
 1538 11/22/95 (new feature) Implemented "auto-detect" mode for end of line
 1539 translations. On input, standalone "\r" mean MAC mode, standalone "\n"
 1540 mean Unix mode and "\r\n" means Windows mode. On output, the mode is
 1541 modified to whatever the platform specific mode for that platform is. (JL)
 1542 
 1543 11/24/95 (feature change) Replaced "configInfo" file with tclConfig.sh,
 1544 which is more complete and uses slightly different names.  Also
 1545 arranged for tclConfig.sh to be installed in the platform-specific
 1546 library directory instead of Tcl's script library directory. (JO)
 1547 *** POTENTIAL INCOMPATIBILITY with Tcl 7.5a2, but not with Tcl 7.4 ***
 1548 
 1549 ----------------- Released patch 7.4p3, 11/28/95 -----------------------
 1550 
 1551 12/5/95 (new feature) Added Tcl_File facility to support platform-
 1552 independent file handles.  Changed all interfaces that used Unix-
 1553 style integer fd's to use Tcl_File's instead. (SS)
 1554 *** POTENTIAL INCOMPATIBILITY ***
 1555 
 1556 12/5/95 (new feature) Added a new "clock" command to Tcl.  The command
 1557 allows you to get the current "clicks" or seconds & allows you to
 1558 format or scan human readable time/date strings. (RJ)
 1559 
 1560 12/18/95 (new feature) Moved Tk_Preserve, Tk_Release, and Tk_EventuallyFree
 1561 to Tcl, renamed to Tcl_Preserve, Tcl_Release, and Tcl_EventuallyFree. (JO)
 1562 
 1563 12/18/95 (new feature) Added new "package" command and associated
 1564 procedures Tcl_PkgRequire and Tcl_PkgProvide.   Also wrote
 1565 pkg_mkIndex library procedure to create index files from binaries
 1566 and scripts. (JO)
 1567 
 1568 12/20/95 (new feature) Added Tcl_WaitForFile procedure. (JO)
 1569 
 1570 12/21/95 (new features) Made package name argument to "load" optional
 1571 (Tcl will now attempt to guess the package name if necessary).  Also
 1572 added Tcl_StaticPackage and support in "load" for statically linked
 1573 packages.  (JO)
 1574 
 1575 12/22/95 (new feature) Upgraded the foreach command to accept multiple
 1576 loop variables and multiple value lists.  This lets you iterate over
 1577 multiple lists in parallel, and/or assign multiple loop variables from
 1578 one value list during each iteration. The only potential compatibility
 1579 problem is with scripts that used loop variables with a name that could be
 1580 construed to be a list of variable names (i.e. contained spaces).  (BW)
 1581 
 1582 1/5/96 (new feature) Changed tclsh so it builds as a console mode
 1583 application under Windows.  Now tclsh can be used from the command
 1584 line with pipes or interactively.  Note that this only works under
 1585 Windows 95 or NT. (SS)
 1586 
 1587 1/17/96 (new feature) Modified Makefile and configure script to allow
 1588 Tcl to be compiled as a shared library:  use the --enable-shared option
 1589 when configuing.  (JO)
 1590 
 1591 1/17/96 (removed obsolete features)  Removed the procedures Tcl_EnterFile
 1592 and Tcl_GetOpenFile:  these no longer make sense with the new I/O system. (JL)
 1593 *** POTENTIAL INCOMPATIBILITY ***
 1594 
 1595 1/19/96 (bug fixes) Prevented formation of circular aliases, through the
 1596 Tcl 'interp alias' command and through the 'rename' command, as well as
 1597 through the C API Tcl_CreateAlias. (JL)
 1598 
 1599 1/19/96 (bug fixes) Fixed several bugs in direct deletion of interpreters
 1600 with Tcl_DeleteInterp when the interpreter is a slave; fixes based on a
 1601 patch received from Viktor Dukhovni of ESM. (JL)
 1602 
 1603 1/19/96 (new feature) Implemented on-close handlers for channels; added
 1604 the C APIs Tcl_CreateCloseHandler and Tcl_DeleteCloseHandler. (JL)
 1605 
 1606 1/19/96 (new feature) Implemented portable error reporting mechanism; added
 1607 the C APIs Tcl_SetErrno and Tcl_GetErrno. (JL)
 1608 
 1609 1/24/96 (bug fix) Unknown command processing properly invokes external
 1610 commands under Windows NT and Windows '95 now. (SS)
 1611 
 1612 1/23/96 (bug fix) Eliminated extremely long startup times under Windows '95.
 1613 The problem was a result of the option database initialization code that
 1614 concatenated $HOME with /.Xdefaults, resulting in a // in the middle of the
 1615 file name.  Under Windows '95, this is incorrectly interpreted as a UNC
 1616 path.  They delays came from the network timeouts needed to determine that
 1617 the file name was invalid.  Tcl_TranslateFileName now suppresses duplicate
 1618 slashes that aren't at the beginning of the file name. (SS)
 1619 
 1620 1/25/96 (bug fix) Changed exec and open to create children so they are
 1621 attached to the application's console if it exists. (SS)
 1622 
 1623 1/31/96 (bug fix) Fixed command line parsing to handle embedded
 1624 spaces under Windows. (SS)
 1625 
 1626 ----------------- Released 7.5b1, 2/1/96 -----------------------
 1627 
 1628 2/7/96 (bug fix) Fixed off by one error in argument parsing code under
 1629 Windows. (SS)
 1630 
 1631 2/7/96 (bug fix) Fixed bugs in VC++ makefile that improperly
 1632 initialized the tcl75.dll.  Fixed bugs in Borland makefile that caused
 1633 build failures under Windows NT. (SS)
 1634 
 1635 2/9/96 (bug fix) Fixed deadlock problem in AUTO end of line translation
 1636 mode which would cause a socket server with several concurrent clients
 1637 writing in CRLF mode to hang. (JL)
 1638 
 1639 2/9/96 (API change) Replaced -linemode option to fconfigure with a
 1640 new -buffering option, added "none" setting to enable immediate write. (JL)
 1641 *** INCOMPATIBILITY with b1 ***
 1642 
 1643 2/9/96 (new feature) Added C API Tcl_InputBuffered which returns the count
 1644 of bytes currently buffered in the input buffer of a channel, and o for
 1645 output only channels. (JL)
 1646 
 1647 2/9/96 (new feature) Implemented asynchronous connect for sockets. (JL)
 1648 
 1649 2/9/96 (new feature) Added C API Tcl_SetDefaultTranslation to set (per
 1650 channel) the default end of line translation mode. This is the mode that
 1651 will be installed if an output operation is done on the channel while it is
 1652 still in AUTO mode. (JL)
 1653 
 1654 2/9/96 (bug fix) Changed Tcl_OpenCommandChannel interface to properly
 1655 handle all of the combinations of stdio inheritance in background
 1656 pipelines.  See the Tcl_OpenFileChannel(3) man page for more
 1657 info.  This change fixes the bug where exec of a background pipeline
 1658 was not getting passed the stdio handles properly. (SS)
 1659 
 1660 2/9/96 (bug fix) Removed the new Tcl_CreatePipeline interface, and
 1661 restored the old version for Unix platforms only.  All new code should
 1662 use Tcl_CreateCommandChannel instead. (SS)
 1663 
 1664 2/9/96 (bug fix) Changed Makefile.in to use -L and -ltcl7.5 for Tcl
 1665 library so that shared libraries are more likely to be found correctly
 1666 on more platforms. (JO)
 1667 
 1668 2/13/96 (new feature) Added C API Tcl_SetNotifierData and
 1669 Tcl_GetNotifierData to allow notifier and channel driver writers to
 1670 associate data with a Tcl_File.  The result of this change is that
 1671 Tcl_GetFileInfo now always returns an OS file handle, and Tcl_GetFile
 1672 can be used to construct a Tcl_File for an externally constructed OS
 1673 handle. (SS)
 1674 
 1675 2/13/96 (bug fix) Changed Windows socket implementation so it doesn't
 1676 set SO_REUSEADDR on server sockets.  Now attempts to create a server
 1677 socket on a port that is already in use will be properly identified
 1678 and an error will be generated. (SS)
 1679 
 1680 2/13/96 (bug fix) Fixed problems with DLL initialization under Visual
 1681 C++ that left the C run time library uninitialized. (SS)
 1682 
 1683 2/13/96 (bug fix) Fixed Windows socket initialization so it loads
 1684 winsock the first time it is used, rather than at the time tcl75.dll
 1685 is loaded.  This should fix the bug where the modem immediately starts
 1686 trying to connect to a service provider when wish or tclsh are
 1687 started. (SS)
 1688 
 1689 2/13/96 (new feature) Added C APIs Tcl_MakeFileChannel and
 1690 Tcl_MakeTcpClientChannel to wrap up existing fds and sockets into
 1691 channels. Provided implementations on Unix and Windows. (JL)
 1692 
 1693 2/13/96 (bug fix) Fixed bug with seek leaving EOF and BLOCKING set. (JL)
 1694 
 1695 2/14/96 (bug fix) Fixed reentrancy problem in fileevent handling
 1696 and made it more robust in the face of errors. (JL)
 1697 
 1698 2/14/96 (feature change) Made generic IO level emulate blocking mode if the
 1699 channel driver is unable to provide it, e.g. if the low level device is
 1700 always nonblocking. Thus, now blocking behavior is an advisory setting for
 1701 channel drivers and can be ignored safely if the channel driver is unable
 1702 to provide it. (JL)
 1703 
 1704 2/15/96 (new feature) Added "binary" end of line translation mode, which is
 1705 a synonym of "lf" mode. (JL)
 1706 
 1707 2/15/96 (bug fix) Fixed reentrancy problem in fileevent handling vs
 1708 deletion of channel event handlers. (JL)
 1709 
 1710 2/15/96 (bug fix) Fixed bug in event handling which would cause a
 1711 nonblocking channel to not see further readable events after the first
 1712 readable event that had insufficient input. (JL)
 1713 
 1714 2/17/96 (bug fix) "info complete" didn't properly handle comments
 1715 in nested commands. (JO)
 1716 
 1717 2/21/96 (bug fix) "exec" under Windows NT/95 did not properly handle
 1718 very long command lines (>200 chars). (SS)
 1719 
 1720 2/21/96 (bug fix) Sockets could get into an infinite loop if a read
 1721 event arrived after all of the available data had been read. (SS)
 1722 
 1723 2/22/96 (bug fix) Added cast of st_size elements to (long) before
 1724 sprintf-ing in "file size" command.  This is needed to handle systems
 1725 like NetBSD with 64-bit file offsets.  (JO)
 1726 
 1727 ----------------- Released 7.5b2, 2/23/96 -----------------------
 1728 
 1729 2/23/96 (bug fix) TCL_VARARGS macro in tcl.h wasn't defined properly
 1730 when compiling with C++.  (JO)
 1731 
 1732 2/24/96 (bug fix) Removed dependencies on Makefile in the UNIX Makefile:
 1733 this caused problems on some platforms (like Linux?). (JO)
 1734 
 1735 2/24/96 (bug fix) Fixed configuration bug that made Tcl not compile
 1736 correctly on Linux machines with neither -ldl or -ldld. (JO)
 1737 
 1738 2/24/96 (new feature) Added a block of comments and definitions to
 1739 Makefile.in to make it easier to have Tcl's TclSetEnv etc. replace
 1740 the library procedures setenv etc, so that calls to setenv etc. in
 1741 the application automatically update the Tcl "env" variable. (JO)
 1742 
 1743 2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
 1744 to C API Tcl_Close and simplified closing of command channels. (JL)
 1745 *** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1746 
 1747 2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
 1748 to C type definition Tcl_DriverCloseProc; modified all channel drivers to
 1749 implement close procedures that accept the additional argument. (JL)
 1750 *** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1751 
 1752 2/28/96 (bug fix) Fixed memory leak that could occur if an upvar
 1753 referred to an element of an array in the same stack frame as the
 1754 upvar. (JO)
 1755 
 1756 2/29/96 (feature change) Modified both Tcl_DoOneEvent and Tcl_WaitForEvent
 1757 so that they return immediately in cases where they would otherwise
 1758 block forever (e.g. if there are no event handlers of any sort). (JO)
 1759 
 1760 2/29/96 (new feature) Added C APIs Tcl_GetChannelBufferSize and
 1761 Tcl_SetChannelBufferSize to set and retrieve the size, in bytes, for
 1762 buffers allocated to store input or output in a channel. (JL)
 1763 
 1764 2/29/96 (new feature) Added option -buffersize to Tcl fconfigure command
 1765 to allow Tcl scripts to query and set the size of channel buffers. (JL)
 1766 
 1767 2/29/96 (feature removed) Removed channel driver function to specify
 1768 the buffer size to use when allocating a buffer. Removed the C typedef
 1769 for Tcl_DriverBufferSizeProc. Channels are now created with a default
 1770 buffer size of 4K. (JL)
 1771 *** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1772 
 1773 2/29/96 (feature change) The channel driver function for setting blocking
 1774 mode on the device may now be NULL. If the generic code detects that the
 1775 function is NULL, operations that set the blocking mode on the channel
 1776 simply succeed. (JL)
 1777 
 1778 3/2/96 (bug fix) Fixed core dump that could occur if a syntax error
 1779 (such as missing close paren) occurred in an array reference with a
 1780 very long array name. (JO)
 1781 
 1782 3/4/96 (bug fix) Removed code in the "auto_load" procedure that deletes
 1783 all existing auto-load information whenever the "auto_path" variable
 1784 is changed.  Instead, new information adds to what was already there.
 1785 Otherwise, changing the "auto_path" variable causes all package-
 1786 related information to be lost.  If you really want to get rid of
 1787 existing auto-load information, use auto_reset before setting auto_path. (JO)
 1788 
 1789 3/5/96 (new feature) Added version suffix to shared library names so that
 1790 Tcl will compile under NetBSD and FreeBSD (I hope).  (JO)
 1791 
 1792 3/6/96 (bug fix) Cleaned up error messages in new I/O system to correspond
 1793 more closely to old I/O system. (JO)
 1794 
 1795 3/6/96 (new feature) Added -myaddr and -myport options to the socket
 1796 command, removed -tcp and -- options.  This lets clients and servers
 1797 choose a particular interface.  Also changed the default server address
 1798 from the hostname to INADDR_ANY.  The server accept callback now gets
 1799 passed the client's port as well as IP address.  The C interfaces for
 1800 Tcl_OpenTcpClient and Tcl_OpenTcpServer have changed to support the
 1801 above changes. (BW)
 1802 *** POTENTIAL INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1803 
 1804 3/6/96 (changed feature) The library function auto_mkindex will now
 1805 default to using the pattern "*.tcl" if no pattern is given. (RJ)
 1806 
 1807 3/6/96 (bug fix) The socket channel code for the Macintosh has been
 1808 rewritten to use native MacTcp.  (RJ)
 1809 
 1810 3/7/96 (new feature) Added Tcl_SetStdChannel and Tcl_GetStdChannel
 1811 interfaces to allow applications to explicitly set and get the global
 1812 standard channels. (SS)
 1813 
 1814 3/7/96 (bug fix) Tcl did close not the file descriptors associated
 1815 with "stdout", etc. when the corresponding channels were closed.  (SS)
 1816 
 1817 3/7/96 (bug fix) Reworked shared library and dynamic loading stuff to
 1818 try to get it working under AIX.  Added new @SHLIB_LD_LIBS@ autoconf
 1819 symbol as part of this.  AIX probably doesn't work yet, but it should
 1820 be a lot closer. (JO)
 1821 
 1822 3/7/96 (feature change) Added Tcl_ChannelProc typedef and changed the
 1823 signature of Tcl_CreateChannelHandler and Tcl_DeleteChannelHandler to take
 1824 Tcl_ChannelProc arguments instead of Tcl_FileProc arguments. This change
 1825 should not affect any code outside Tcl because the signatures of
 1826 Tcl_ChannelProc and Tcl_FileProc are compatible. (JL)
 1827 
 1828 3/7/96 (API change) Modified signature of Tcl_GetChannelOption to return
 1829 an int instead of char *, and to take a Tcl_DString * argument. Modified
 1830 the implementation so that the option name can be NULL, to mean that the
 1831 call should retrieve a list of alternating option names and values. (JL)
 1832 *** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1833 
 1834 3/7/96 (API change) Added Tcl_DriverSetOptionProc, Tcl_DriverGetOptionProc
 1835 typedefs, added two slots setOptionProc and getOptionProc to the channel
 1836 type structure. These may be NULL to indicate that the channel type does
 1837 not support any options. (JL)
 1838 *** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
 1839 
 1840 3/7/96 (feature change) stdin, stdout and stderr can now be put into
 1841 nonblocking mode. (JL)
 1842 
 1843 3/8/96 (feature change) Eliminated dependence on the registry for
 1844 finding the Tcl library files. (SS)
 1845 
 1846 ----------------- Released 7.5b3, 3/8/96 -----------------------
 1847 
 1848 3/12/96 (feature improvement) Modified startup script to look in several
 1849 different places for the Tcl library directory.  This should allow Tcl
 1850 to find the libraries under all but the weirdest conditions, even without
 1851 the TCL_LIBRARY environment variable being set. (JO)
 1852 
 1853 3/13/96 (bug fix) Eliminated use of the "linger" option from the Windows
 1854 socket implementation. (JL)
 1855 
 1856 3/13/96 (new feature) Added -peername and -sockname options for fconfigure
 1857 for socket channels. Code contributed by John Haxby of HP. (JL)
 1858 
 1859 3/13/96 (bug fix) Fixed panic and core dump that would occur if the accept
 1860 callback script on a server socket encountered an error. (JL)
 1861 
 1862 3/13/96 (feature change) Added -async option to the Tcl socket command.
 1863 If the command is creating a client socket and the flag is present, the
 1864 client is connected asynchronously. If the option is absent (the default),
 1865 the client socket is connected synchronously, and the command returns only
 1866 when the connection has been completed or failed. This change was suggested
 1867 by Mark Diekhans. (JL)
 1868 
 1869 3/13/96 (feature change) Modified the signature of Tcl_OpenTcpClient to
 1870 take an additional int argument, async. If nonzero, the client is connected
 1871 to the server asynchronously. If the value is zero, the connection is made
 1872 synchronously, and the call to Tcl_OpenTcpClient returns only when the
 1873 connection fails or succeeds. This change was suggested by Mark Diekhans. (JL)
 1874 *** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
 1875 
 1876 3/14/96 (bug fix) "tclsh bogus_file_name" didn't print an error message. (JO)
 1877 
 1878 3/14/96 (bug fix) Added new procedures to tclCkalloc.c so that libraries
 1879 and applications can be compiled with TCL_MEM_DEBUG even if Tcl isn't
 1880 (however, the converse is still not true).  Patches provided by Jan
 1881 Nijtmans. (JO)
 1882 
 1883 3/15/96 (bug fix) Marked standard IO handles of a process as close-on-exec
 1884 to fix bug in Ultrix where exec was not sharing standard IO handles with
 1885 subprocesses. Fix suggested by Mark Diekhans. (JL)
 1886 
 1887 3/15/96 (bug fix) Fixed asynchronous close mechanism so that it closes the
 1888 channel instead of leaking system resources. The manifestation was that Tcl
 1889 would eventually run out of file descriptors if it was handling a large
 1890 number of nonblocking sockets or pipes with high congestion. (JL)
 1891 
 1892 3/15/96 (bug fix) Fixed tests so that they no longer leak file descriptors.
 1893 The manifestation was that Tcl would eventually run out of file descriptors
 1894 if the tests were rerun many times (> a hundred times on Solaris). (JL)
 1895 
 1896 3/15/96 (bug fix) Fixed channel creation code so that it never creates
 1897 unnamed channels. This would cause a panic and core dump when the channel
 1898 was closed. (JL)
 1899 
 1900 3/16/96 (bug fixes) Made lots of changes in configuration stuff to get
 1901 Tcl working under AIX (finally).  Tcl should now support the "load"
 1902 command under AIX and should work either with or without shared
 1903 libraries for Tcl and Tk. (JO)
 1904 
 1905 3/21/96 (configuration improvement) Changed configure script so it
 1906 doesn't use version numbers (as in -ltcl7.5 and libtcl7.5.so) under
 1907 SunOS 4.1, where they don't work anyway.  (JO)
 1908 
 1909 3/22/96 (new feature) Added C API Tcl_InterpDeleted that allows extension
 1910 writers to discover when an interpreter is being deleted. (JL)
 1911 
 1912 3/22/96 (bug fix) The standard IO channels are now added to each
 1913 trusted interpreter as soon as the interpreter is created. This ensures
 1914 against the bug where a child would do IO before the master had done any,
 1915 and then the child is destroyed - the standard IO channels would be then
 1916 closed and the master would be unable to do any IO. (JL)
 1917 
 1918 3/22/96 (bug fix) Made Tcl more robust against interpreter deletion, by
 1919 using Tcl_Preserve, Tcl_Release and Tcl_EventuallyFree to split the process
 1920 of interpreter deletion into two distinct phases. Also went through all of
 1921 Tcl and added calls to Tcl_Preserve and Tcl_Delete where needed. (JL)
 1922 
 1923 3/22/96 (bug fix) Fixed several places where C code was reading and writing
 1924 into freed memory, especially during interpreter deletion. (JL)
 1925 
 1926 3/22/96 (bug fix) Fixed very deep bug in Tcl_Release that caused memory to
 1927 be freed twice if the release callback did Tcl_Preserve and Tcl_Release on
 1928 the same memory as the chunk currently being freed. (JL)
 1929 
 1930 3/22/96 (bug fix) Removed several memory leaks that would cause memory
 1931 buildup on half-K chunks in the generic IO level. (JL)
 1932 
 1933 3/22/96 (bug fix) Fixed several core dumps which occurred when new
 1934 AssocData was being created during the cleanups in interpreter deletion.
 1935 The solution implemented now is to loop repeatedly over the AssocData until
 1936 none is left to clean up. (JL)
 1937 
 1938 3/22/96 (bug fix) Fixed a bug in event handling which caused an infinite
 1939 loop if there were no files being watched and no timer. Fix suggested by
 1940 Jan Nijtmans. (JL)
 1941 
 1942 3/22/96 (bug fix) Fixed Tcl_CreateCommand, Tcl_DeleteCommand to be more
 1943 robust if the interpreter is being deleted. Also fixed several order
 1944 dependency bugs in Tcl_DeleteCommand which kicked in when an interpreter
 1945 was being deleted. (JL)
 1946 
 1947 3/26/96 (bug fix) Upon a "short read", the generic code no longer calls
 1948 the driver for more input. Doing this caused blocking on some platforms
 1949 even on nonblocking channels. Bug and fix courtesy Mark Roseman. (JL)
 1950 
 1951 3/26/96 (new feature) Added 'package Tcltest' which is present only in
 1952 test versions of Tcl; this allows the testing commands to be loaded into
 1953 new interpreters besides the main one. (JL)
 1954 
 1955 3/26/96 (restored feature) Recreated the Tcl_GetOpenFile C API. You can
 1956 now get a FILE * from a registered channel; Unix only. (JL)
 1957 
 1958 3/27/96 (bug fix) The regular expression code did not support more
 1959 than 9 subexpressions.  It now supports up to 20. (SS)
 1960 
 1961 4/1/96 (bug fixes) The CHANNEL_BLOCKED bit was being left on on a short
 1962 read, so that fileevents wouldn't fire correctly. Bug reported by Mark
 1963 Roseman.(JL, RJ)
 1964 
 1965 4/1/96 (bug fix) Moved Tcl_Release to match Tcl_Preserve exactly, in
 1966 tclInterp.c; previously interpreters were being freed only conditionally
 1967 and sometimes not at all. (JL)
 1968 
 1969 4/1/96 (bug fix) Fixed error reporting in slave interpreters when the
 1970 error message was being generated directly by C code. Fix suggested by
 1971 Viktor Dukhovni of ESM. (JL)
 1972 
 1973 4/2/96 (bug fixes) Fixed a series of bugs in Windows sockets that caused
 1974 events to variously get lost, to get sent multiple times, or to be ignored
 1975 by the driver. The manifestation was blocking if the channel is blocking,
 1976 and either getting EAGAIN or infinite loops if the channel is nonblocking.
 1977 This series of bugs was found by Ian Wallis of Cisco. Now all tests (also
 1978 those that were previously commented out) in socket.test pass.  (JL, SS)
 1979 
 1980 4/2/96 (feature change/bug fix) Eliminated network name support in
 1981 favor of better native name support.  Added "file split", "file join",
 1982 and "file pathtype" commands.  See the "file" man page for more
 1983 details. (SS)
 1984 *** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
 1985 
 1986 4/2/96 (bug fix) Changed implementation of auto_mkindex so tclIndex
 1987 files will properly handle path names in a cross platform context. (SS)
 1988 
 1989 4/5/96 (bug fix) Fixed Tcl_ReadCmd to use the channel buffer size as the
 1990 chunk size it reads, instead of a fixed 4K size. Thus, on large reads, the
 1991 user can set the channel buffer size to a large size and the read will
 1992 occur orders of magnitude faster. For example, on a 2MB file, reading in 4K
 1993 chunks took 34 seconds, while reading in 1MB chunks took 1.5 seconds (on a
 1994 SS-20). Problem identified and fix suggested by John Haxby of HP. (JL)
 1995 
 1996 4/5/96 (bug fix) Fixed socket creation code to invoke gethostbyname only if
 1997 inet_addr failed (very unlikely). Before this change the order was reversed
 1998 and this made things much slower than they needed to be (gethostbyname
 1999 generally requires an RPC, which is slow). Problem identified and fix
 2000 suggested by John Loverso of OSF. (JL)
 2001 
 2002 4/9/96 (feature change) Modified "auto" translation mode so that it
 2003 recognizes any of "\n", "\r" and "\r\n" in input as end of line, so
 2004 that a file can have mixed end-of-line sequences. It now outputs
 2005 the platform specific end of line sequence on each platform for files and
 2006 pipes, and for sockets it produces crlf in output on all platforms. (JL)
 2007 *** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
 2008 
 2009 4/11/96 (new feature) Added -eofchar option to Tcl_SetChannelOption to allow
 2010 setting of an end of file character for input and output. If an input eof
 2011 char is set, it is recognized as EOF and further input from the channel is
 2012 not presented to the caller. If an output eof char is set, on output, that
 2013 byte is appended to the channel when it is closed. On Unix and Macintosh,
 2014 all channels start with no eof char set for input or output. On Windows,
 2015 files and pipes start with input and output eof chars set to Crlt-Z (ascii
 2016 26), and sockets start with no input or output eof char. (JL)
 2017 *** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
 2018 
 2019 4/17/96 (bug fix) Fixed series of bugs with handling of crlf sequence split
 2020 across buffer boundaries in input, in AUTO mode. (JL, BW)
 2021 
 2022 4/17/96 (test suite improvement) Fixed test suite so that tests that
 2023 depend on the availability of Unix commands such as echo, cat and others
 2024 are not run if these commands are not present. (JL)
 2025 
 2026 4/17/96 (test suite improvement) The socket test now automatically starts,
 2027 on platformst that support exec, a separate process for remote testsing. (JL)
 2028 
 2029 ----------------- Released 7.5, 4/21/96 -----------------------
 2030 
 2031 5/1/96 (bug fix) "file tail ~" did not correctly return the tail
 2032 portion of the user's home directory. (SS)
 2033 
 2034 5/1/96 (bug fix) Fixed bug in TclGetEnv where it didn't lookup environment
 2035 variables correctly:  could confuse "H" and "HOME", for example.  (JO)
 2036 
 2037 5/1/96 (bug fix) Changed to install tclConfig.sh under "make install-binaries",
 2038 not "make install-libraries".  (JO)
 2039 
 2040 5/2/96 (bug fix) Changed pkg_mkIndex not to attempt to "load" a file unless
 2041 it has the standard shared library extension.  On SunOS, attempts to load
 2042 Tcl scripts cause the whole application to be aborted (there's no way to
 2043 get the error back into Tcl).  (JO)
 2044 
 2045 5/7/96 (bug fix) Moved initScript in tclUnixInit.c to writable memory to
 2046 avoid potential core dumps. (JO)
 2047 
 2048 5/7/96 (bug fix) Auto_reset procedure was removing procedure from init.tcl,
 2049 such as pkg_mkIndex.  (JO)
 2050 
 2051 5/7/96 (bug fix) Fixed cast on socket address resolution code that
 2052 would cause a failure to connect on Dec Alphas. (JL)
 2053 
 2054 5/7/96 (bug fix) Added "time", "subst" and "fileevent" commands to set of
 2055 commands available in a safe interpreter. (JL)
 2056 
 2057 5/13/96 (bug fix) Preventing OS level handles for stdin, stdout and stderr
 2058 from being implicitly closed when the last reference to the standard
 2059 channel containing that handle is discarded when an interpreter is deleted.
 2060 Explicitly closing standard channels by using "close" still works. (JL)
 2061 
 2062 5/21/96 (bug fix) Do not create channels for stdin, stdout and stderr on
 2063 Unix if the devices are closed. This prevents a duplicate channel name
 2064 panic later on when the fd is used to open a channel and the channel is
 2065 registered in an interpreter. (JL)
 2066 
 2067 5/23/96 (bug fix) Fixed bug that prevented the use of standard channels in
 2068 interpreters created after the last interpreter was destroyed. In the sequence
 2069 
 2070 	interp = Tcl_CreateInterp();
 2071 	Tcl_DeleteInterp(interp);
 2072 	interp = Tcl_CreateInterp();
 2073 
 2074 channels for stdio would not be available in the second interpreter. (JL)
 2075 
 2076 5/23/96 (bug fix) Fixed bug that allowed Tcl_MakeFileChannel to create new
 2077 channels with Tcl_Files in them that are already used by another channel.
 2078 This would cause core dumps when the Tcl_Files were being freed twice. (JL)
 2079 
 2080 5/23/96 (bug fix) Fixed a logical timing bug that caused a standard channel
 2081 to be removed from the standard channel table too early when the channel
 2082 was being closed. If the channel was being flushed asynchronously, it could
 2083 get recreated before being actually destroyed, and the recreated channel
 2084 would contain the same Tcl_File as the one being closed, leading to
 2085 dangling pointers and core dumps. (JL)
 2086 
 2087 5/27/96 (bug fix) Fixed a bug in Tcl_GetChannelOption which caused it to
 2088 always return a list of one element, a list of the settings, for
 2089 -translation and -eofchar options. Now correctly returns the value
 2090 described by the documentation (Mark Diekhans found this, thanks!). (JL)
 2091 
 2092 5/30/96 (bug fix) Fixed a couple of syntax errors in io.test. (JL)
 2093 
 2094 5/30/96 (bug fix) If a fileevent scripts gets an error, delete it before
 2095 causing a background error. This is to allow the error handler to reinstall
 2096 the fileevent and to prevent infinite loops if the event loop is reentered
 2097 in the error handler. (JL)
 2098 
 2099 5/31/96 (bug fix) Channels now will get properly flushed on exit. (JL)
 2100 
 2101 6/5/96 (bug fix) Changed Tcl_Ckalloc, Tcl_Ckfree, and Tcl_Ckrealloc to
 2102 Tcl_Alloc, Tcl_Free, and Tcl_Realloc.  Added documentation for these
 2103 routines now that they are officially supported.  Extension writers
 2104 should use these routines instead of free() and malloc(). (SS)
 2105 
 2106 6/10/96 (bug fix) Changes the Tcl close command so that it no longer
 2107 waits on nonblocking pipes for the piped processes to exit; instead it
 2108 reaps them in the background. (JL)
 2109 
 2110 6/11/96 (bug fix) Increased the length of the listen queue for server
 2111 sockets on Unix from 5 to 100. Some OSes will disregard this and reset it
 2112 to 5, but we should try to get as long a queue as we can, for performance
 2113 reasons. (JL)
 2114 
 2115 6/11/96 (bug fix) Fixed windows sockets bug that caused a cascade of events
 2116 if the fileevent script read less than was available. Now reading less than
 2117 is available does not cause a flood of Tcl events. (JL, SS)
 2118 
 2119 6/11/96 (bug fix) Fixed bug in background flushing on closed channels that
 2120 would prevent the last buffer from getting flushed. (JL)
 2121 
 2122 6/13/96 (bug fix) Fixed bug in Windows sockets that caused a core dump if
 2123 a DLL linked with tcl.dll and referred to e.g. ntohs() without opening a
 2124 Tcl socket. The problem was that the indirection table was not being
 2125 initialized. (JL)
 2126 
 2127 6/13/96 (bug fix) Fixed OS level resource leak that would occur when a
 2128 Tcl channel was still registered in some interpreter when the process
 2129 exits. Previously the channel was not being closed and the OS level handles
 2130 were not being released; the output was being flushed but the device was
 2131 not being closed. Now the device is properly closed. This was only a
 2132 problem on Win3.1 and MacOS. (JL, SS)
 2133 
 2134 6/28/96 (bug fix) Fixed bug where transient errors were leaving an error
 2135 code around, so that it would erroneously get reported later. This bug was
 2136 exercised intermittently by closing a channel to a file on a very loaded
 2137 NFS server, or to a socket whose other end blocked. (JL, BW)
 2138 
 2139 7/3/96 (bug fix) Fileevents declared in an interpreter are now deleted
 2140 when the channel is closed in that interpreter. Before this fix, the
 2141 fileevent would hang around until the channel is completely closed, and
 2142 would cause errors if events happened before the channel was closed. This
 2143 could happen in two cases: first if the channel is shared between several
 2144 interpreters, and second if an async flush is in progress that prevents the
 2145 channel from being closed until the flush finishes. (JL)
 2146 
 2147 7/10/96 (bug fix) Fixed bugs in both "lrange" and "lreplace" commands
 2148 where too much white space was being removed. For example, the command
 2149 		lreplace {\}\     hello} end end
 2150 was returning "\}\", losing the significant space in the first list
 2151 element and corrupting the list. (JO)
 2152 
 2153 7/20/96 (bug fix) The procedure pkg_mkIndex didn't work properly for
 2154 extensions that depend on Tk, because it didn't load Tk into the child
 2155 interpreter before loading the extension.  Now it loads Tk if Tk is
 2156 present in the parent. (JO)
 2157 
 2158 7/23/96 (bug fix) Added compat version of strftime to fix crashes
 2159 resulting from bad implementations under Windows. (SS)
 2160 
 2161 7/23/96 (bug fix) Standard implementations of gmtime() and localtime()
 2162 under Windows did not handle dates before 1970, so they were replaced
 2163 with a revised implementation. (SS)
 2164 
 2165 7/23/96 (bug fix) Tcl would crash on exit under Borland 5.0 because
 2166 the global environ pointer was left pointing to freed memory. (SS)
 2167 
 2168 7/29/96 (bug fix) Fixed memory leak in Tcl_LoadCmd that could occur if
 2169 a package's AppInit procedure called Tcl_StaticPackage to register
 2170 static packages. (JO)
 2171 
 2172 8/1/96 (bug fix) Fixed a series of bugs in Windows sockets so that async
 2173 writebehind in the presence of read event handlers now works, and so that
 2174 async writebehind also works on sockets for which a read event handler was
 2175 declared and whose channels were then closed before the async write
 2176 finished. The bug was reported by John Loverso and Steven Wahl,
 2177 independently, test case supplied by John Loverso. (JL)
 2178 
 2179 ----------------- Released patch 7.5p1, 8/2/96 -----------------------
 2180 
 2181 5/8/96 (new feature) Added Tcl_GetChannelMode C API for retrieving whether
 2182 a channel is open for reading and writing. (JL)
 2183 
 2184 5/8/96 (API changes) Revised C APIs for channel drivers:
 2185     - Removed all Tcl_Files from channel driver interface; you can now have
 2186       channels that are not based on Tcl_Files.
 2187     - Added channelReadyProc and watchChannelProc procedures to interface;
 2188       these are used to implement event notification for channels.
 2189     - Added getFileProc to channel driver, to allow the generic IO code
 2190       to retrieve a Tcl_File from a channel (presumably if the channel
 2191       uses Tcl_Files they will be stored inside its instanceData). (JL)
 2192 *** INCOMPATIBILITY with Tcl 7.5 ***
 2193 
 2194 5/8/96 (API change) The Tcl_CreateChannel C API was modified to not take
 2195 Tcl_File arguments, and instead to take a mask specifying whether the
 2196 channel is readable and/or writable. (JL)
 2197 *** INCOMPATIBILITY with Tcl 7.5 ***
 2198 
 2199 6/3/96 (bug fix) Made Tcl_SetVar2 robust against the case where the value
 2200 of the variable is a NULL pointer instead of "". (JL)
 2201 
 2202 6/17/96 (bug fix) Fixed "reading uninitialized memory" error reported by
 2203 Purify, in Tcl_Preserve/Tcl_Release. (JL)
 2204 
 2205 8/9/96 (bug fix) Fixed bug in init.tcl that caused incorrect error message
 2206 if the act of autoloading a procedure caused the procedure to be invoked
 2207 again. (JO)
 2208 
 2209 8/9/96 (bug fix) Configure script produced bad library names and extensions
 2210 under SunOS and a few other platforms if the --disable-load switch was used.
 2211 (JO)
 2212 
 2213 8/9/96 (bug fix) Tcl_UpdateLinkedVar generated an error if the variable
 2214 being updated was read-only. (JO)
 2215 
 2216 8/14/96 (bug fix) The macintosh now supports synchronous socket
 2217 connections.  Other minor bugs were also fixed. (RJ)
 2218 
 2219 8/15/96 (configuration improvement) Changed the file patchlevel.h
 2220 to be tclPatch.h.  This avoids conflict with the Tk file and is now
 2221 in 8.3 format on the Windows platform. (RJ)
 2222 
 2223 8/20/96 (bug fix) Fixed core dump in interp alias command for interpreters
 2224 created with Tcl_CreateInterp (as opposed to with Tcl_CreateSlave). (JL)
 2225 
 2226 8/20/96 (bug fix) No longer masking ECONNRESET on Windows sockets so
 2227 that the higher level of the IO mechanism sees the error instead of
 2228 entering an infinite loop. (JL)
 2229 
 2230 8/20/96 (bug fix) Destroying the last interpreter no longer closes the
 2231 standard channels. (JL)
 2232 
 2233 8/20/96 (bug fix) Closing one of the stdin, stdout or stderr channels and
 2234 then opening a new channel now correctly assigns the new channel as the
 2235 standard channel that was closed. (JL)
 2236 
 2237 8/20/96 (bug fix) Added code to unix/tclUnixChan.c for using ioctl with
 2238 FIONBIO instead of fcntl with O_NONBLOCK, for those versions of Unix where
 2239 either O_NONBLOCK is not supported or implemented incorrectly. (JL)
 2240 
 2241 8/21/96 (bug fix) Fixed "file extension" so it correctly returns the
 2242 extension on files like "foo..c" as "..c" instead of ".c". (SS)
 2243 
 2244 8/22/96 (bug fix) If environ[] contains static strings, Tcl would core
 2245 dump in TclSetupEnv because it was trying to write NULLs into the actual
 2246 data in environ[]. Now we instead copy as appropriate. (JL)
 2247 
 2248 8/22/96 (added impl) Added missing implementation of Tcl_MakeTcpClientChannel
 2249 for Windows platform. Code contributed by Mark Diekhans. (JL)
 2250 
 2251 8/22/96 (new feature) Added a new memory allocator for the Macintosh
 2252 version of Tcl.  It's quite a bit faster than MetroWerk's version. (RJ)
 2253 
 2254 8/26/96 (documentation update) Removed old change bars (for all changes
 2255 in Tcl 7.5 and earlier releases) from manual entries. (JO)
 2256 
 2257 8/27/96 (enhancement) The exec and open commands behave better and work in
 2258 more situations under Windows NT and Windows 95.  Documentation describes
 2259 what is still lacking. (CS)
 2260 
 2261 8/27/96 (enhancement) The Windows makefiles will now compile even if the
 2262 compiler is not in the path and/or the compiler's environment variables
 2263 have not been set up. (CS)
 2264 
 2265 8/27/96 (configuration improvement) The Windows resource files are
 2266 automatically updated when the version/patch level changes.  The header file
 2267 now has a comment that reminds the user which other files must be manually
 2268 updated when the version/patch level changes. (CS)
 2269 
 2270 8/28/96 (new feature) Added file manipulation features (copy, rename, delete,
 2271 mkdir) that are supported on all platforms. They are implemented as
 2272 subcommands to the "file" command. See the documentation for the "file"
 2273 command for more information. (JH)
 2274 
 2275 ----------------- Released 7.6b1, 8/30/96 -----------------------
 2276 
 2277 9/3/96 (bug fix) Simplified code so that standard channels are created
 2278 lazily, they are added to an interpreter lazily, and they are never added
 2279 to a safe interpreter. (JL)
 2280 
 2281 9/3/96 (bug fix) Closing a channel after closing a standard channel, e.g.
 2282 stdout, would cause the implicit recreation of that standard channel. (JL)
 2283 
 2284 9/3/96 (new feature) Now calling Tcl_RegisterChannel with a NULL
 2285 interpreter increments the refcount so that code outside any interpreter
 2286 can use channels that are also registered in interpreters, without worrying
 2287 that the channel may turn into a dangling pointer at any time. Calling
 2288 Tcl_UnregisterChannel with a NULL interpreter only decrements the recount
 2289 so that code outside any interpreter can safely declare it is no longer
 2290 interested in a channel. (JL)
 2291 
 2292 9/4/96 (new features) Two changes to dynamic loading:
 2293     - If the file name is empty in the "load" command and there is no
 2294       statically loaded version of the package, a dynamically loaded
 2295       version will be used if there is one.
 2296     - Tcl_StaticPackage ignores redundant calls for the same package. (JO)
 2297 
 2298 9/6/96 (bug fix) Platform specific procedures for manipulating files are
 2299 no longer macros and have been prefixed with "Tclp", such as TclpRenameFile.
 2300 Unix file code now handles symbolic links and other special files correctly.
 2301 The semantics of file copy and file rename has been changed so that if
 2302 a target directory exists, the source files will NOT be merged with the
 2303 existing files. (JH)
 2304 
 2305 9/6/96 (bug fix) If standard channel is NULL, because Tcl cannot connect
 2306 to the standard channel, do not increment the refcount. The channel can
 2307 be NULL if there is for example no standard input. (JL)
 2308 
 2309 9/6/96 (portability improvement) Changed parsing of backslash sequences
 2310 like \n to translate directly to absolute values like 0xa instead of
 2311 letting the compiler do the translation.  This guarantees that the
 2312 translation is done the same everywhere. (JO)
 2313 
 2314 9/9/96 (bug fix) If channel is opened and not associated with any
 2315 interpreter, but Tcl decides to use it as one of the standard channels, it
 2316 became impossible to close the channel with Tcl_Close -- instead you had
 2317 to call Tcl_UnregisterChannel. Fixed now so that it's safe to call
 2318 Tcl_Close even when Tcl is using the channel as one of the standard ones. (JL)
 2319 
 2320 9/11/96 (feature change) The Tcl library is now placed in the Tcl
 2321 shared libraries resource.  You no longer need to place the Tcl files
 2322 in your applications explicitly.  (RJ)
 2323 
 2324 9/11/96 (feature change) Extensions no longer automatically have the
 2325 resource fork of the extension opened for it.  Instead you need to
 2326 use the tclMacLibrary.c file in your extension.  (RJ)
 2327 *** POTENTIAL INCOMPATIBILITY ***
 2328 
 2329 9/12/96 (bug fix) The extension loading mechanism on the Macintosh now
 2330 looks at the 'cfrg' resource to determine where to load the code
 2331 fragment from.  This means FAT fragments should now work. (RJ)
 2332 
 2333 9/18/96 (enhancement) The exec and open commands behave better and work in
 2334 more situations under Windows 3.X.  Documentation describes what is still
 2335 lacking.  (CS)
 2336 
 2337 9/19/96 (bug fix) Fixed a panic which would occur if you delete a
 2338 non-existent alias before any aliases are created. Now instead correctly
 2339 returns an error that the alias is not found. (JL)
 2340 
 2341 9/19/96 (bug fix) Slave interpreters could rename aliases and they would
 2342 not get deleted when the alias was being redefined. This led to dangling
 2343 pointers etc. (JL)
 2344 
 2345 9/19/96 (bug fix) Fixed a panic where a hash table entry was being deleted
 2346 twice during alias management operations. (JL)
 2347 
 2348 9/19/96 (bug fix) Fixed bug in event loop that could cause the input focus
 2349 in Tk to get confused during menu traversal, among other problems.  The
 2350 problem was related to handling of the "marker" when its event was
 2351 deleted. (JO)
 2352 
 2353 9/26/96 (bug fix) Windows was losing EOF on a socket if the FD_CLOSE event
 2354 happened to precede any left over FD_READ events. Now correctly remembers
 2355 seeing FD_CLOSE, so that trailing FD_READ events are not discarded if they
 2356 do not contain any data. This allows Tcl to correctly get a zero read and
 2357 notice EOF. (JL)
 2358 
 2359 9/26/96 (bug fix) Was not resetting READABLE state properly on sockets
 2360 under Windows if the driver discarded an FD_READ event because no data was
 2361 present. Now correctly resets the state. (JL)
 2362 
 2363 9/30/96 (bug fix) Made EOF sticky on Windows sockets, so that fileevent
 2364 readable will fire repeatedly until the socket is closed. Previously the
 2365 fileevent fired only once. This could lead to never-closed connections if
 2366 the Tcl script in the fileevent wasn't closing the socket immediately. (JL)
 2367 
 2368 10/2/96 (new feature) Improved the package loader:
 2369     - Added new variable tcl_pkgPath, which holds the default
 2370       directories under which packages are normally installed (each
 2371       package goes in a separate subdirectory of a directory in
 2372       $tcl_pkgPath).  These directories are included in auto_path by
 2373       default.
 2374     - Changed the package auto-loader to look for pkgIndex.tcl files
 2375       not only in the auto_path directories but also in their immediate
 2376       children.  This should make it easier to install and uninstall
 2377       packages (don't have to change auto_path or merge pkgIndex.tcl
 2378       files). (JO)
 2379 
 2380 10/3/96 (bug fix) Changed tclsh to look for tclshrc.tcl instead of
 2381 tclsh.rc on startup under Windows.  This is more consistent with wish and
 2382 uses the right extension. (SS)
 2383 *** POTENTIAL INCOMPATIBILITY ***
 2384 
 2385 10/8/96 (bug fix) Convertclock does not parse 24-hour times of the
 2386 form "hhmm" correctly when hour = 00.  In the parse code, hour must be
 2387 >= 100 for minutes to be non-zero.  Thanks to Lint LaCour for this
 2388 bug fix. (RJ)
 2389 
 2390 10/11/96 (bug fix) Under Windows, the pid command returned the process
 2391 handle instead of the process id. (SS)
 2392 
 2393 ----------------- Released 7.6, 10/16/96 -----------------------
 2394 
 2395 10/29/96 (bug fix) Under Windows, sockets would consume 100% CPU time after
 2396 the first accept(), due to a typo. (JL)
 2397 
 2398 10/29/96 (bug fix) Incorrect refcount management caused standard channels
 2399 not to get deleted at process exit or DLL unload time, causing a memory
 2400 leak of upwards of 20K each time. (JL)
 2401 
 2402 11/7/96 (bug fix) Auto-exec didn't work on file names that contained
 2403 spaces. (JO)
 2404 
 2405 11/8/96 (bug fix) Fixed core dump that would occur if more than one call
 2406 to Tcl_DeleteChannelHandler was made to delete a given channel handler. (JL)
 2407 
 2408 11/8/96 (bug fix) Fixed test for return value in Tcl_Seek and Tcl_SeekCmd
 2409 to only treat -1 as error, instead of all negative numbers. (JL)
 2410 
 2411 11/12/96 (bug fix) Do not blocking waiting for processes at the end of a
 2412 pipe during exit cleanup. (JL)
 2413 
 2414 11/12/96 (bug fix) If we are in exit cleanup, do not close the system level
 2415 file descriptors 0, 1 and 2. Previously they were being closed which is
 2416 incorrect, in the embedded case. This led to weird behavior for programs
 2417 that want to interpose on I/O through the standard file descriptors (e.g.
 2418 Netscape Navigator). (JL)
 2419 
 2420 11/15/96 (bug fix) Fixed core dump on Windows sockets due to dependency on
 2421 deletion order at exit. Now all socket functions check to see if sockets
 2422 are (still) initialized, before calling through function pointers. Before,
 2423 they would call and might end up calling unloaded object code. (JL)
 2424 
 2425 11/15/96 (bug fix) Fixed core dump in Windows socket initialization routine
 2426 if sockets were not installed on the system. Before, it was not properly
 2427 checking the result of attempting to load the socket DLL, so it would call
 2428 through uninitialized function pointers. (JL)
 2429 
 2430 11/15/96 (bug fix) Fixed memory leak in Windows sockets which left socket
 2431 DLL handle open and could hold the socket DLL in memory uneccessarily,
 2432 until a reboot. (JL)
 2433 
 2434 12/4/96 (bug fix) Fixed bug in Macintosh socket code that could result
 2435 in lost data if a client was closed too soon after sending data. (RJ)
 2436 
 2437 12/17/96 (bug fix) Fixed deadlock bug in Windows sockets due to losing an
 2438 event. This was happening because of an interaction between buffering and
 2439 nonblocking mode on sockets. Now switched to sockets being blocking by
 2440 default, so we are also no longer emulating blocking through a private
 2441 event loop. (JL)
 2442 
 2443 1/21/97 (performance bug fix) Client TCP connections were slow to create
 2444 because getservbyname was always called on the port.  Now this is only
 2445 done if Tcl_GetInt fails. (BW)
 2446 
 2447 1/21/97 (configuration fix) Made it possible to override TCL_PACKAGE_PATH
 2448 during make.  Previously it was only set during autoconf process.
 2449 
 2450 1/29/97 (bug fix) Fixed some problems with the clock command that
 2451 impacted how dates were scaned after the year 2000. (RJ)
 2452 
 2453 ----------------- Released 7.6p2, 1/31/97 -----------------------
 2454 
 2455 2/5/97 (bug fix) Fixed a bug where in CR-LF translation mode, \r bytes
 2456 in the input stream were not being handled correctly. (JL)
 2457 
 2458 2/24/97 (bug fix) Fix bug with exec under Win32s not being able to create
 2459 stderr file which caused all execs to fail.  Fixed temp file leak under
 2460 Win32s.  Fixed optional parameter bug with SearchPath that only happened
 2461 under Win32s 1.25. (CCS)
 2462 
 2463 ----------------------------------------------------------
 2464 Changes for Tcl 7.6 go above this line.
 2465 Changes for Tcl 7.7 go below this line.
 2466 ----------------------------------------------------------
 2467 
 2468 5/8/96 (new feature) Added Tcl_Ungets C API for putting a sequence of bytes
 2469 into a channel's input buffer. This can be used for "push" model channels
 2470 where the input is obtained via callbacks instead of by request of the
 2471 generic IO code. No Tcl procedure yet. (JL)
 2472 
 2473 11/15/96 (new feature) Implemented hidden commands. New C APIs:
 2474 	Tcl_HideCommand		-- hides an existing exposed command.
 2475 	Tcl_ExposeCommand	-- exposes an existing hidden command.
 2476 New tcl APIs:
 2477 	interp invokehidden	-- invokes a hidden command in a slave.
 2478 	interp hide		-- hides an existing exposed command.
 2479 	interp expose		-- exposes an existing hidden command.
 2480 	interp hidden		-- returns a list of hidden commands.
 2481 The implementation of Safe Tcl now uses the new hidden commands facility
 2482 to implement the safe base, instead of deleting the commands from a safe
 2483 interpreter. (JL)
 2484 
 2485 11/15/96 (new feature) Implemented the safe base, a mechanism for
 2486 installing and requesting security policies, purely in Tcl code. Overloads
 2487 the package command to also allow an interpreter to "require" a policy. The
 2488 following new library commands are provided:
 2489 	tcl_safeCreateInterp	-- creates a slave an initializes the
 2490 				   policy mechanism.
 2491 	tcl_safeInitInterp	-- initializes an existing slave with the
 2492 				   policy mechanism.
 2493 	tcl_safeDeleteInterp	-- deletes a slave and deinitializes the
 2494 				   policy mechanism.
 2495 Added a new file to the library, safeinit.tcl, to hold implementation. (JL)
 2496 On 7/9/97, removed the policy loading mechanism from the Safe Base. Left
 2497 only the Safe Base aliases dealing with auto-loading and source. (JL)
 2498 
 2499 12/6/96 (new feature) Implemented Tcl_Finalize, an API that should be
 2500 called by a process when it is done using Tcl. This API runs all the exit
 2501 handlers to allow them to clean up resources etc. (JL)
 2502 
 2503 12/17/96 (new feature) Add an http Tcl script package to the Tcl library.
 2504 This package implements the client side of HTTP/1.0; the GET, HEAD,
 2505 and POST requests. (BW)
 2506 
 2507 1/21/97 (new feature) Added a "marktrusted" subcommand to the "interp" and
 2508 to the interpreter object command. It removes the "safe" mark on an
 2509 interpreter and disables hard-wired checks for safety in the C sources. (JL)
 2510 
 2511 1/21/97 (removed feature) Removed "vwait" from set of commands available in
 2512 a safe interpreter. (JL)
 2513 
 2514 2/11/97 (new feature, bug fix) http package.  Added -accept to http_config
 2515 so you can set the Accept header.  Added -handler option to http_get so
 2516 you can supply your own data handler.  Also fixed POST operation to
 2517 set the correct MIME type on the request. (BW)
 2518 
 2519 ----------------------------------------------------------
 2520 Changes for Tcl 7.7 go above this line.
 2521 Changes for Tcl 8.0 go below this line.
 2522 ----------------------------------------------------------
 2523 
 2524 9/17/96 (bug fix) Using "upvar" it was possible to turn an array element
 2525 into an array itself.  Changed to disallow this; it was quirky and didn't
 2526 really work correctly anyway. (JO)
 2527 
 2528 10/21/96 (new feature) The core of the Tcl interpreter has been replaced
 2529 with an on-the-fly compiler that translates Tcl scripts to bytecoded
 2530 instructions; a new interpreter then executes the bytecodes. The compiler
 2531 introduces only a few minor changes at the level of Tcl scripts. The biggest
 2532 changes are to expressions and lists.
 2533     - A second level of substitutions is no longer done for expressions.
 2534       This substantially improves their execution time. This means that
 2535       the expression "$x*4" produces a different result than in the past
 2536       if x is "$y+2". Fortunately, not much code depends on the old
 2537       two-level semantics. Some expressions that do, such as
 2538       "expr [join $list +]" can be recoded to work in Tcl8.0 by adding
 2539       an eval: e.g., "eval expr [join $list +]".
 2540     - Lists are now completely parsed on the first list operation to
 2541       create a faster internal representation. In the past, if you had a
 2542       misformed list but the erroneous part was after the point you
 2543       inserted or extracted an element, then you never saw an error.
 2544       In Tcl8.0 an error will be reported. This should only effect
 2545       incorrect programs that took advantage of behavior of the old
 2546       implementation that was not documented in the man pages.
 2547 Other changes to Tcl scripts are discussed in the web page at
 2548 http://www.scriptics.com/doc/compiler.html. (BL)
 2549 *** POTENTIAL INCOMPATIBILITY ***
 2550 
 2551 10/21/96 (new feature) In earlier versions of Tcl, strings were used as a
 2552 universal representation; in Tcl 8.0 strings are replaced with Tcl_Obj
 2553 structures ("objects") that can hold both a string value and an internal
 2554 form such as a binary integer or compiled bytecodes. The new objects make it
 2555 possible to store information in efficient internal forms and avoid the
 2556 constant translations to and from strings that occurred with the old
 2557 interpreter. There are new many new C APIs for managing objects. Some of the
 2558 new library procedures for objects (such as Tcl_EvalObj) resemble existing
 2559 string-based procedures (such as Tcl_Eval) but take advantage of the
 2560 internal form stored in Tcl objects for greater speed. Other new procedures
 2561 manage objects and allow extension writers to define new kinds of objects.
 2562 See the manual entries doc/*Obj*.3 (BL)
 2563 
 2564 10/24/96 (bug fix) Fixed memory leak on exit caused by some IO related
 2565 data structures not being deallocated on exit because their refcount was
 2566 artificially boosted. (JL)
 2567 
 2568 10/24/96 (bug fix) Fixed core dump in Tcl_Close if called with NULL
 2569 Tcl_Channel. (JL)
 2570 
 2571 11/19/96 (new feature) Added library procedures for finding word
 2572 breaks in strings in a platform specific manner.  See the library.n
 2573 manual entry for more information. (SS)
 2574 
 2575 11/22/96 (feature improvements) Added support for different levels of
 2576 tracing during bytecode compilation and execution. This should help in
 2577 tracking down suspected problems with the compiler or with converting
 2578 existing code to use Tcl8.0. Two global Tcl variables, traceCompile
 2579 and traceExec, can be set to generate tracing information in stdout:
 2580     - traceCompile: 0  no tracing (default)
 2581                     1  trace compilations of top level commands and procs
 2582                     2  trace and display instructions for all compilations
 2583     - traceExec:    0  no tracing
 2584                     1  trace only calls to Tcl procs
 2585                     2  trace invocations of all commands including procs
 2586                     3  detailed trace showing the result of each instruction
 2587 traceExec >= 2 provides a one line summary of each called command and
 2588 its arguments. Commands that have been "compiled away" such as set are
 2589 not shown. (BL)
 2590 
 2591 11/30/96 (bug fix) The command "info nameofexecutable" could sometimes
 2592 return the name of a directory. (JO)
 2593 
 2594 11/30/96 (feature improvements) Changed the code in library/init.tcl
 2595 that reads in pkgIndex.tcl so that (a) it reads the files from child
 2596 directories before those in the parent, so that the parent gets
 2597 precedence, and (b) it doesn't quit if there is an error in a
 2598 pkgIndex.tcl file;  instead, it prints an error message on standard
 2599 error and continues. (JO)
 2600 
 2601 10/5/96 (feature improvements) Partial implementation of binary string
 2602 support: the ability for Tcl string values to contain embedded null bytes.
 2603 Changed the Tcl object-based APIs to take a byte pointer and length pair
 2604 instead of a null-terminated C string. Modified several object type managers
 2605 to support binary strings but not, for example, the list type manager.
 2606 Existing string-based C APIs are unchanged and will truncate binary
 2607 strings. Compiled scripts containing nulls are also truncated. (BL)
 2608 
 2609 12/12/96 (feature change) Removed the commands "cp", "mkdir", "mv",
 2610 "rm", and "rmdir" from the Macintosh version of Tcl.  They were never
 2611 officially supported and their functionality is now available via
 2612 the file command. (RJ)
 2613 
 2614 ----------------- Released 8.0a1, 12/20/96 -----------------------
 2615 
 2616 1/7/97 (bug fix) Under Windows, "file stat c:" was returning error instead
 2617 of stat for current dir on c: drive.
 2618 
 2619 1/10/97 (new feature) Added Tcl_GetIndexFromObj procedure for quick
 2620 lookups of keyword arguments. (JO)
 2621 
 2622 1/12/97 (new feature) Serial IO channel drivers for Windows and Unix,
 2623 available by using Tcl open command to open pseudo-files like "com1:" or
 2624 "/dev/ttya".  New option to Tcl fconfigure command for serial files:
 2625 "-mode baud,parity,data,stop" to specify baud rate, parity, data bits, and
 2626 stop bits.  Serial IO is not yet available on Mac.
 2627 
 2628 1/16/97 (feature change) Restored the Tcl7.x "two level substitution
 2629 semantics" for expressions. Expressions not enclosed in braces are
 2630 implemented, in general, by calling the expr command procedure
 2631 (Tcl_ExprObjCmd) at runtime after the Tcl interpreter has already done a
 2632 first round of substitutions. This is slow (about Tcl7.x speed) because new
 2633 code for the expression is generally compiled each time. However, if the
 2634 expression has only variable substitutions (and not command substitutions),
 2635 "optimistic" fast code is generated inline. This inline code will fail if a
 2636 second round of substitutions is needed (i.e., if the value of a substituted
 2637 variable itself requires more substitutions). The optimistic code will
 2638 catch the error and back off to call the slower but guaranteed correct
 2639 expr command procedure. (BL)
 2640 
 2641 1/16/97 (feature improvements) Added Tcl_ExprLongObj and Tcl_ExprDoubleObj
 2642 to round out expression-related procedures. (BL)
 2643 
 2644 1/16/97 (feature change) Under Windows, at startup the environment variables
 2645 "path", "comspec", and "windir" in any capitalization are converted
 2646 automatically to upper case.  The PATH variable could be spelled as path,
 2647 Path, PaTh, etc. and it makes programming rather annoying.  All other
 2648 environment variables are left alone. (CS)
 2649 
 2650 1/20/97 (new features) Rewrote the "lsort" command:
 2651     - The new version is based on reentrant merge sort code provided
 2652       by Richard Hipp, so it eliminates the reentrancy and stability
 2653       problems with the old qsort-based implementation.
 2654     - The new version supports a -dictionary option for sorting, and
 2655       it also supports a -index option for sorting lists using one
 2656       element for comparison.
 2657     - The new version is an object command, so it works well with the
 2658       Tcl compiler, especially in conjunction with the new -index
 2659       option.  When the -index option is used, this version of lsort
 2660       is more than 100 times faster than the Tcl 7.6 lsort, which had
 2661       to use the -command option to get the same effect. (JO)
 2662 
 2663 1/20/97 (feature improvements) Added the improved debugging support for Tcl
 2664 objects prototyped by Karl Lehenbauer <karl@hammer1.ops.NeoSoft.com>.
 2665 If TCL_MEM_DEBUG is defined, the object creation calls use Tcl_DbCkalloc
 2666 directly in order to record the caller's source file name and line
 2667 number. (BL)
 2668 
 2669 1/21/97 (removed feature) Desupported the tcl_precision variable: if
 2670 set, it is ignored.  Tcl now uses the full 17 digits of precision when
 2671 converting real numbers to strings (with the new object system real
 2672 numbers are rarely converted to strings so there is no efficiency
 2673 disadvantage to printing all 17 digits; the new scheme improves
 2674 accuracy and simplifies several APIs). (JO)
 2675 *** POTENTIAL INCOMPATIBILITY ***
 2676 
 2677 1/21/97 (feature change) Removed the "interp" argument for the
 2678 procedures Tcl_GetStringFromObj, Tcl_StringObjAppend, and
 2679 Tcl_StringObjAppendObj.  Also removed the "interp" argument for
 2680 the updateStringProc procedure in Tcl_ObjType structures.  With
 2681 the tcl_precision changes above, these are no longer needed. (JO)
 2682 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a1, but not with Tcl 7.6 ***
 2683 
 2684 1/22/97 (bug fix) Fixed http.tcl so that http_reset does not result in
 2685 an extra call to the command callback.  In addition, if the transaction
 2686 gets a premature eof, the state(status) is "eof", not "ok". (BW)
 2687 
 2688 ----------------- Released 8.0a2, 1/24/97 -----------------------
 2689 
 2690 1/29/97 (feature change) Changed how two digit years are parsed in the
 2691 clock command.  The old interface just added 1900 which will seem
 2692 broken by the year 2000.  The new scheme follows the POSIX standard
 2693 and treats dates 70-99 as 1970-1999 and dates 00-38 as 2000-2038.  All
 2694 other two digit dates are undefined. (RJ)
 2695 *** POTENTIAL INCOMPATIBILITY ***
 2696 
 2697 2/4/97 (bug fix) Fixed bug in clock code that dealt with relative
 2698 dates.  Using the relative month code you could get an invalid date
 2699 because it jumped into a non-existant day.  (For example, Jan 31
 2700 to Feb 31.)  The code now will return the last valid day of the
 2701 month in these situations.  Thanks to Hume Smith for sending in
 2702 this bug fix.  (RJ)
 2703 
 2704 2/10/97 (feature change) Eliminated Tcl_StringObjAppend and
 2705 Tcl_StringObjAppendObj procedures, replaced them with Tcl_AppendToObj
 2706 and Tcl_AppendStringsToObj procedures.  Added new procedure
 2707 Tcl_SetObjLength. (JO)
 2708 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2, but not with Tcl 7.6 ***
 2709 
 2710 2/10/97 (new feature) Added Tcl_WrongNumArgs procedure for generating
 2711 error messages about incorrect number of arguments. (JO)
 2712 
 2713 2/11/97 (new feature, bug fix) http package.  Added -accept to http_config
 2714 so you can set the Accept header.  Added -handler option to http_get so
 2715 you can supply your own data handler.  Also fixed POST operation to
 2716 set the correct MIME type on the request. (BW)
 2717 
 2718 2/22/97 (bug fix) Fixed bug that caused $tcl_platform(osVersion) to be
 2719 computed incorrectly under AIX. (JO)
 2720 
 2721 2/25/97 (new feature, feature change) Added support for both int and long
 2722 integer objects. Added Tcl_NewLongObj/Tcl_GetLongFromObj/Tcl_SetLongFromObj
 2723 procedures and renamed the Tcl_Obj internalRep intValue member to
 2724 longValue. Tcl_GetIntFromObj now checks for integer values too large to
 2725 represent as non-long integers. Changed Tcl_GetAllObjTypes to
 2726 Tcl_AppendAllObjTypes. (BL)
 2727 
 2728 3/5/97 (new feature) Added new Tcl_SetListObj procedure to round out
 2729 collection of procedures that set the type and value of existing Tcl
 2730 objects. (BL)
 2731 
 2732 3/6/97 (new feature) Added -global flag for interp invokehidden. (JL)
 2733 
 2734 3/6/97 (new feature, feature change) Added isNativeObjectProc field to the
 2735 Tcl_CmdInfo structure to indicate (when 1) if the command has an
 2736 object-based command procedure. Removed the nameLength arg from
 2737 Tcl_CreateObjCommand since command names can't contain null characters. (BL)
 2738 
 2739 3/6/97 (bug fix) Fixed bug in "unknown" procedure that caused auto-
 2740 loading to fail on commands whose names begin with digits. (JO)
 2741 
 2742 3/7/97 (bug fix) Auto-loading now works in Safe Base. Safe interpreters
 2743 only accept the Version 2 and onwards tclIndex files. (JL)
 2744 
 2745 3/13/97 (bug fix) Fixed core dump due to interaction between aliases and
 2746 hidden commands. Bug found by Lindsay Marshall. (JL)
 2747 
 2748 3/14/97 (bug fix) Fixed mac bugs relating to time.  The -gmt option
 2749 now adjusts the time in the correct direction.  (Thanks to Ed Hume for
 2750 reporting a fix to this problem.)  Also fixed file "mtime" etc. to
 2751 return times from GMT rather than local time zone.  (RJ)
 2752 
 2753 3/18/97 (feature change) Declaration of objv in Tcl_ObjCmdProc function
 2754 changed from "Tcl_Obj *objv[]" to "Tcl_Obj *CONST objv[]".  All Tcl object
 2755 commands changed to use new declaration of objv.  Naive translation of
 2756 string-based command procs to object-based command procs could very easily
 2757 have yielded code where the contents of the objv array were changed.  This
 2758 is not a problem with string-based command procs, but doing something as
 2759 simple as objv[2] = objv[3] would corrupt the runtime stack and cause Tcl to
 2760 crash.  Introduced CONST in declaration of objv so that attempted assignment
 2761 of new pointer values to elements of the objv array will be caught by the
 2762 compiler. (CCS)
 2763 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
 2764 
 2765 3/19/97 (bug fix) Fixed panic due to object sharing. The root cause was
 2766 that old code was using Tcl_ResetResult instead of Tcl_ResetObjResult. (JL)
 2767 
 2768 3/20/97 (new feature) Added a new subcommand for the file
 2769 command. file attributes filename can give a list of platform-specific
 2770 options (such as file/creator type on the Mac, permissions on Unix) or
 2771 set the values of them. Added a new subcommand for the file
 2772 command. file nativename name gives back the platform-specific form
 2773 for the file. This is useful when the filename is needed to pass to
 2774 the OS, such as exec under Windows 95 or AppleScript on the Mac. For
 2775 more info, see file.n. (SRP)
 2776 
 2777 3/24/97 (removed feature) Removed the tcl_safePolicyPath procedure. Now
 2778 the policy path is computed from the auto_path by appending the directory
 2779 'policies' to each element. Also fixed several bugs in automatic tracking
 2780 of auto_path by computed policy path. (JL)
 2781 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
 2782 
 2783 4/8/97 (new feature) If the variable whose name is passed to lappend doesn't
 2784 already exist, and there are no value arguments, lappend now creates the
 2785 variable with an empty value instead of returning an error. Change suggested
 2786 by Tom Tromey. (BL)
 2787 
 2788 4/9/97 (feature change) Changed the name of the TCL_PART1_NOT_PARSED flag to
 2789 TCL_PARSE_PART1. (BL)
 2790 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 but not with Tcl 7.6 ***
 2791 
 2792 4/10/97 (bug fixes) Fixed various compilation-related bugs:
 2793     - "UpdateStringOfCmdName should never be invoked" panic.
 2794     - Bad code generated for expressions not in {}'s inside catch commands.
 2795     - Segmentation fault in some command procedures when two argument
 2796       object pointers refer to the same object.
 2797     - Second level of substitutions were never done for expressions not
 2798       in {}'s that consist of a single variable reference: e.g.,
 2799       "set x 27; set bool {$x}; if $bool {puts foo}" would fail with error.
 2800     - Bad code generated when code storage was grown while compiling some
 2801       expressions: ones with compilation errors or consisting of only a
 2802       variable reference.
 2803     - Bugs involving multiple interpreters: wasn't checking that a
 2804       procedure's code was compiled for the same interpreter as the one
 2805       executing it, and didn't invalidate code on hidden-exposed command
 2806       transitions.
 2807     - "Bad stack top" panic when executing scripts that require a huge
 2808       amount of stack space.
 2809     - Incorrect sharing of code for procedure bodies, and procedure code
 2810       deallocated before last execution of the procedure finished.
 2811     - Fixed compilation of expression words in quotes. For example,
 2812       if "0 < 3" {puts foo}.
 2813     - Fixed performance bug in array set command with large assignments.
 2814     - Tcl_SetObjLength segmentation fault setting length of empty object.
 2815     - If Tcl_SetObjectResult was passed the same object as the interpreter's
 2816       result object, it freed the object instead of doing nothing. Bug fix
 2817       by Michael J. McLennan.
 2818     - Tcl_ListObjAppendList inserted elements from the wrong list. Bug fix
 2819       by Michael J. McLennan.
 2820     - Segmentation fault if empty variable list was specified in a foreach
 2821       command. Bug fix by Jan Nijtmans.
 2822     - NULL command name was always passed to Tcl_CreateTrace callback
 2823       procedure.
 2824     - Wrong string representation generated for the value LONG_MIN.
 2825       For example, expr 1<<31 printed incorrectly on a 32 bit machine.
 2826     - "set {a($x)} 1" stored value in wrong variable.
 2827     - Tcl_GetBooleanFromObj was not checking for garbage after a numeric
 2828       value.
 2829     - Garbled "bad operand type" error message when evaluating expressions
 2830       not surrounded by {}'s. (BL)
 2831 
 2832 4/16/97 (new feature) The expr command now has the "rand()" and
 2833 "srand()" functions for getting random numbers in expr. (RJ)
 2834 
 2835 4/23/97 (bug fix) Fixed core dump in bgerror when the error handler command
 2836 deletes the current interpreter. Found by Juergen Schoenwald. (JL)
 2837 
 2838 4/23/97 (feature change) The notifier interfaces have been redesigned
 2839 to make embedding in applications with external event loops possible.
 2840 A number of interfaces in the notifier and the channel drivers have
 2841 changed.  Refer to the Notifier.3 and CrtChannel.3 manual entries for
 2842 more details. (SS)
 2843 *** POTENTIAL INCOMPATIBILITY ***
 2844 
 2845 4/23/97 (removed feature) The Tcl_File interfaces have been removed.
 2846 The Tcl_CreateFileHandler/Tcl_DeleteFileHandler interfaces now take
 2847 Unix fd's and are only supported on the Unix platform.
 2848 Tcl_GetChannelFile has been replaced with Tcl_GetChannelHandle.
 2849 Tcl_MakeFileChannel now takes a platform specific file handle. (SS)
 2850 *** POTENTIAL INCOMPATIBILITY ***
 2851 
 2852 4/23/97 (removed feature) The modal timeout interface has been
 2853 removed (Tcl_CreateModalTimeout/Tcl_DeleteModalTimeout) (SS)
 2854 *** POTENTIAL INCOMPATIBILITY ***
 2855 
 2856 4/23/97 (feature change) Channel drivers are now required to correctly
 2857 implement blocking behavior when they are in blocking mode. (SS)
 2858 *** POTENTIAL INCOMPATIBILITY ***
 2859 
 2860 4/23/97 (new feature) Added the "binary" command for manipulating
 2861 binary strings. Also, changed the "puts", "gets", and "read" commands
 2862 to preserve embedded nulls.  (SS)
 2863 
 2864 4/23/97 (new feature) Added tcl_platform(byteOrder) element to the
 2865 tcl_platform array to identify the native byte order for the current
 2866 host. (SS)
 2867 
 2868 4/23/97 (bug fix) Fixed bug in date parsing around year boundaries. (SS)
 2869 
 2870 4/24/97 (bug fix) In the process of copying a file owned by another user,
 2871 Tcl was changing the owner of the copy back to the owner of the original
 2872 file, therefore causing further file operations to fail because the current
 2873 user didn't own the copy anymore.  The owner of the copy is now left as the
 2874 current user. (CCS)
 2875 
 2876 4/24/97 (feature change) Under Windows, don't automatically uppercase the
 2877 environment variable "windir" -- it's supposed to be lower case.  (CCS)
 2878 
 2879 4/29/97 (new feature) Added namespace support based on a namespace
 2880 implementation by Michael J. McLennan of Lucent Technologies. A namespace
 2881 encapsulates a collection of commands and variables to ensure that they
 2882 won't interfere the commands and variables of other namespaces. The global
 2883 namespace holds all global variables and commands. Additional namespaces are
 2884 created with the new namespace command. The new variable command lets you
 2885 create Tcl variables inside a namespace. The names of Tcl variables and
 2886 commands may now be qualified by the name of the namespace containing them.
 2887 The key namespace-related commands are summarized below:
 2888     - namespace ?eval? name arg ?arg...?
 2889          Used to define the commands and variables in a namespace.
 2890          Optionally creates the namespace.
 2891     - namespace export ?-clear? ?pattern pattern...?
 2892          Specifies which commands are exported from a namespace. These
 2893          are the ones that can be imported into another namespace.
 2894     - namespace import ?-force? ?pattern pattern...?
 2895          Makes the specified commands accessible in the current namespace.
 2896     - namespace current
 2897          Returns the name of the current namespace.
 2898     - variable name ?value? ?name ?value?...?
 2899          Creates one or more namespace variables. (BTL)
 2900 
 2901 5/1/97 (bug fix) Under Windows, file times were reported in GMT.  Should be
 2902 reported in local time. (CCS)
 2903 
 2904 5/2/97 (feature change) Changed the name of the two Tcl variables used for
 2905 tracing bytecode compilation and execution to tcl_traceCompile and
 2906 tcl_traceExec respectively. These variables are now documented in the
 2907 tclvars man page. (BL)
 2908 
 2909 5/5/97 (new feature) Support "end" as the index for "lsort -index". (BW)
 2910 
 2911 5/5/97 (bug fixes) Cleaned up the way the http package resets connections (BW)
 2912 
 2913 5/8/97 (feature change) Newly created Tcl objects now have a reference count
 2914 of zero instead of one. This simplifies C code that stores newly created
 2915 objects in Tcl variables or in data structures such as list objects. That C
 2916 code must increment the new object's reference count since the variable or
 2917 data structure will contain a long-term reference to the object. Formerly,
 2918 when new objects started out with reference count one, it was necessary to
 2919 decrement the new object's reference count after the store to make sure it
 2920 was left with the correct value; this is no longer necessary. (BL)
 2921 
 2922 5/9/97 (new feature) Added the Tcl_GetsObj interface that takes an
 2923 object reference instead of a dynamic string (as in Tcl_Gets). (SS)
 2924 
 2925 5/12/97 (new feature) Added Tcl_CreateAliasObj and Tcl_GetAliasObj C APIs
 2926 to allow an alias command to be created with a vector of Tcl_Obj structures
 2927 and to get the vector back later. (JL)
 2928 
 2929 5/12/97 (feature change) Changed Tcl_ExposeCommand and Tcl_HideCommand to
 2930 leave an object result instead of a string result. (JL)
 2931 
 2932 5/14/97 (feature change) Improved the handling of the interpreter result.
 2933 This is still either an object or a string, but the two values are now kept
 2934 consistent unless some C code reads or writes interp->result directly. See
 2935 the SetResult man page for details. Removed the Tcl_ResetObjResult
 2936 procedure. (BL)
 2937 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0a2 ***
 2938 
 2939 5/16/97 (new feature) Added "fcopy" command to move data between
 2940 channels.  Refer to the manual page for more information.  Removed the
 2941 "unsupported0" command since it is obsolete now.  (SS)
 2942 
 2943 5/16/97 (new feature) Added Tcl_GetStringResult procedure to allow programs
 2944 to get an interpreter's result as a string. If the result was previously set
 2945 to an object, this procedure will convert the object to a string. Use of
 2946 Tcl_GetStringResult is intended to replace direct access to interp->result,
 2947 which is not safe. (BL)
 2948 
 2949 5/20/97 (new features) Fixed "fcopy" to return the number of bytes
 2950 transferred in the blocking case.  Updated the http package to use
 2951 fcopy instead of unsupported0.  Added -timeout and -handler options to
 2952 http_get.  http_get is now blocking by default.  It is only non-blocking
 2953 if you supply a -command argument. (BW)
 2954 
 2955 5/22/97 (bug fix) Fixed several bugs in the "lsort" command having to do
 2956 with the -dictionary option and the presence of numbers embedded in the
 2957 strings.  (JO)
 2958 
 2959 ----------------- Released 8.0b1, 5/27/97 -----------------------
 2960 
 2961 6/2/97 (bug fix) Fixed bug in startup code that caused a problem in
 2962 finding the library files when they are installed in a directory
 2963 containing a space in the name. (SS)
 2964 
 2965 6/2/97 (bug fix) Fixed bug in Unix notifier where the select mask was
 2966 not being cleared under some circumstances. (SS)
 2967 
 2968 6/4/97 (bug fix) Fixed bug that prevented creation of Tk widgets in
 2969 namespaces. Tcl_CreateObjCommand and Tcl_CreateCommand now always create
 2970 commands in the global namespace unless the command names are qualified. Tcl
 2971 procedures continue to be created in the current namespace by default. (BL)
 2972 
 2973 6/6/97 (new features) Added new namespace API procedures
 2974 Tcl_AppendExportList and Tcl_Export to allow C code to get and set a
 2975 namespace's export list. (BL)
 2976 
 2977 6/11/97 (new feature) Added Tcl_ConcatObj. This object-based routine
 2978 parallels the string-based routine Tcl_Concat. (SRP)
 2979 
 2980 6/11/97 (new feature) Added Tcl_SetObjErrorCode. This object-based
 2981 routines parallels the string-based routine Tcl_SetErrorCode. (SRP)
 2982 
 2983 6/12/97 (bug fix) Fix the "unknown" procedure so that wish under Windows
 2984 will exec an external program, instead of always complaining "console1 not
 2985 opened for writing". (CCS)
 2986 
 2987 6/12/97 (bug fix) Fixed core dump experienced by the following simple
 2988 script:
 2989 	interp create x
 2990 	x alias exec exec
 2991 	interp delete x
 2992 This panic was caused by not installing the new CmdDeleteProc when exec
 2993 got redefined by the alias creation step. Reported by Lindsay Marshal (JL)
 2994 
 2995 6/13/97 (new features) Tcl objects newly created by Tcl_NewObj now have a
 2996 string representation that points to a shared heap string of length 1. (They
 2997 used to have NULL bytes and typePtr fields. This was treated as a special
 2998 case to indicate an empty string, but made type manager implementations
 2999 complex and error prone.) The new procedure Tcl_InvalidateStringRep is used
 3000 to mark an object's string representation invalid and to free any storage
 3001 associated with the old string representation. (BL)
 3002 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
 3003 
 3004 6/16/97 (bug fix) Tcl_ScanCountedElement could leave braces unmatched
 3005 if the string ended with a backslash. (JO)
 3006 
 3007 6/17/97 (bug fix) Fixed channel event bug where readable events would be
 3008 lost during recursive events loops if the input buffers contained
 3009 data. (SS)
 3010 
 3011 6/17/97 (bug fix) Fixed bug in Windows socket code that didn't
 3012 reenable read events in the case where an external entity is also
 3013 reading from the socket. (SS)
 3014 
 3015 6/18/97 (bug fix) Changed initial setting of the notifier service mode
 3016 to TCL_SERVICE_NONE to avoid unexpected event handling during
 3017 initialization. (SS)
 3018 
 3019 6/19/97 (bug fix/feature change) The command callback to fcopy is now
 3020 called in case of errors during the background copy.  This adds a second,
 3021 optional argument to the callback that is the error string.  The callback
 3022 in case of errors is required for proper cleanup by the user of fcopy. (BW)
 3023 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
 3024 
 3025 6/19/97 (bug fix) Fixed a panic due to the following four line script:
 3026 	interp create x
 3027 	x alias foo bar
 3028 	x eval rename foo blotz
 3029 	x alias foo {}
 3030 The problem was that the interp code was not using the actual current name
 3031 of the command to be deleted as a result of un-aliasing foo. (JL)
 3032 
 3033 6/19/97 (feature change) Pass interp down to the ChannelOption and
 3034 driver specific calls so system errors can be differentiated from syntax
 3035 ones. Changed Tcl_DriverGetOptionProc type. Affects Tcl_GetChannelOption,
 3036 TcpGetOptionProc,  TtyGetOptionProc, etc. (DL)
 3037 *** POTENTIAL INCOMPATIBILITY ***
 3038 
 3039 6/19/97 (new feature) Added Tcl_BadChannelOption for use by by driver
 3040 specific option procedures (Set and Get) to return a complete and
 3041 meaningful error message. (DL)
 3042 
 3043 6/19/97 (bug fixes) If a system call error occurs while doing an
 3044 fconfigure on tcp or tty/com channel: return the appropriate error
 3045 message (instead of the syntax error one or none). (Fixed for Unix and
 3046 most of the Win and Mac drivers). (DL)
 3047 
 3048 6/20/97 (feature change) Eval is no longer assumed as the subcommand name
 3049 in namespace commands: you must now write "namespace eval nsName {...}".
 3050 Abbreviations of namespace subcommand names are now allowed. (BL)
 3051 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl7.6 ***
 3052 
 3053 6/20/97 (feature change) Changed the errorInfo traceback message for
 3054 compilation errors from "invoked from within" to "while compiling". (BL)
 3055 
 3056 6/20/97 (bug fixes) Fixed various compilation-related bugs:
 3057     - "UpdateStringOfCmdName should never be called" and
 3058       "UpdateStringOfByteCode should never be called" panics.
 3059     - Segfault in TclObjInterpProc getting procedure name after evaluation
 3060       stack is reallocated (grown).
 3061     - Could not use ":" at end of variable and command names.
 3062     - Bad code generated for while and for commands with test expressions
 3063       enclosed in quotes: e.g., "set i 0; while "$i > 5" {}".
 3064     - Command trace procedures would crash if they did a Tcl_EvalObj that
 3065       reallocated the evaluation stack.
 3066     - Break and continue commands did not reset the interpreter result.
 3067     - The Tcl_ExprXXX routines, both string- or object-based, always
 3068       modified the interpreter result even if there was no error.
 3069     - The argument parsing procedure used by several compile procedures
 3070       always treated "]" as end of a command: e.g., "set a ]" would fail.
 3071     - Changed errorInfo traceback message for compilation errors from
 3072       "invoked from within" to "while compiling".
 3073     - Problem initializing Tcl object managers during interpreter creation.
 3074     - Added check and error message if formal parameter to a procedure is
 3075       an array element. (BL)
 3076 
 3077 6/23/97 (new feature) Added "registry" package to allow manipulation
 3078 of the Windows system registry.  See manual entry for details. (SS)
 3079 
 3080 6/24/97 (feature change) Converted http to a package and added the
 3081 http1.0 subdirectory of the Tcl script library.  This means you have
 3082 to do a "package require http" to use this, as advertised in the man page. (BW)
 3083 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
 3084 
 3085 6/24/97 (bug fix) Ensure that Tcl_Set/GetVar C APIs, when called without
 3086 TCL_LEAVE_ERR_MSG, don't touch the interp result. (DL)
 3087 
 3088 6/26/97 (feature change) Changed name of Tcl_ExprStringObj to
 3089 Tcl_ExprObj. (BL)
 3090 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b1, but not with Tcl 7.6 ***
 3091 
 3092 ----------------- Released 8.0b2, 6/30/97 -----------------------
 3093 
 3094 7/1/97 (new feature) TCL_BUILD_SHARED flag set in tclConfig.sh
 3095 when Tcl has been built with --enable-shared. A new tclLibObjs
 3096 make target, echoing the list of the .o's needed to build a tcl
 3097 library, is now provided. (DL)
 3098 
 3099 7/1/97 (feature change) compat/getcwd.c removed and changed the
 3100 only place where getcwd is used so a new USEGETWD flag selects
 3101 the use of the replacement "getwd". Adding this flag is recommended
 3102 for SunOS 4 (because getcwd on SunOS 4 uses a pipe to pwd(1)!). (DL)
 3103 
 3104 7/7/97 (feature change) The split command now supports binary data (i.e.,
 3105 null characters in strings). (BL)
 3106 
 3107 7/7/97 (bug fix) string first returned the wrong result if the first
 3108 argument string was empty. (BL)
 3109 
 3110 7/8/97 (bug fix) Fixed core dump in fcopy that could occur when a command
 3111 callback was supplied and an error or eof condition caused no background
 3112 activity.  A refcount bug triggered a panic in Tcl_ListObjAppendElement. (BW)
 3113 
 3114 7/8/97 (bug fix) Relaxed the pattern matching on http_get so you do not
 3115 need a trailing path component.  You can now get away with just
 3116 http_get www.scriptics.com					(BW)
 3117 
 3118 7/9/97 (bug fix) Creating anonymous interpreters no longer smashes existing
 3119 commands with names similar to the generated name. Previously creating an
 3120 anonymous interpreter could smash an existing command, now it skips until
 3121 it finds a command name that isn't being used. (JL)
 3122 
 3123 7/9/97 (feature change) Removed the policy management mechanism from the
 3124 Safe Base; left the aliases to source and load modules, and to do a limited
 3125 form of the "file" command. See entry of 11/15/96. (JL)
 3126 
 3127 7/9/97 (bug fixes) Fixed various compilation-related bugs:
 3128     - Line numbers in errorInfo now are the same as those in Tcl7.6 unless
 3129 there are compilation errors. Compilation error messages now include the
 3130 entire command in error.
 3131     - Trailing ::s after namespace names weren't being ignored.
 3132     - Could not refer to an namespace variable with an empty name using a
 3133 name of the form "n::". (BL)
 3134 
 3135 7/9/97 (bug fix) Fixed bug in Tcl_Export that prevented you from exporting
 3136 from other than the current namespace. (BL)
 3137 
 3138 7/9/97 (bug fix) env.test was removing env var needed for proper finding
 3139 of libraries in child process. (DL)
 3140 
 3141 7/10/97 (bug fixes/new feature) Cleanup in Tcl_MakeSafe. Less information
 3142 is leaked to safe interps. Error message fixes for interp sub commands.
 3143 Likewise changes in safealias.tcl; tcl_safeCreateInterp can now be called
 3144 without argument to generate the slave name (like in interp create). (DL)
 3145 
 3146 7/10/97 (bug fixes) Bytecode compiler now generates more detailed
 3147 command location information: subcommands as well as commands now have
 3148 location information. This means command trace procedures now get the
 3149 correct source string for each command in their command parameter. (BL)
 3150 
 3151 7/22/97 (bug fixes) Performance improvement in Safe interpreters
 3152 handling. Added new mask value to (tclInt.h) Interp.flags record. (DL)
 3153 
 3154 7/22/97 (bug fix) Fixed panic in 'interp target {} foo'. This bug
 3155 was present since Tcl 7.6. (JL)
 3156 
 3157 7/22/97 (bug fix) Fixed bug in compilation of procedures in namespaces: the
 3158 procedure's namespace must be used to look up compile procedures, not the
 3159 current namespace. (BL)
 3160 
 3161 7/22/97 (bug fix) Use of the -channel option of http_get was not setting
 3162 the end of line translations mode on the channel, so copying binary data
 3163 with the -channel option was corrupting the result on non-unix platforms. (BW)
 3164 
 3165 7/22/97 (bug fixes) file commands and ~user (seg fault and other
 3166 improper returns). (DL)
 3167 
 3168 7/23/97 (feature change) Reenabled "vwait" in Safe Base. (JL)
 3169 
 3170 7/23/97 (bug fixes) Fixed two bugs involving read traces on array variables
 3171 in procedures: trace procedures were sometimes not called, and reading
 3172 nonexistant array elements didn't create undefined element variables that
 3173 could later be defined by trace procedures. (BL)
 3174 
 3175 7/24/97 (bug fix) Windows memory allocation performance was
 3176 superlinear in some cases.  Made the Mac allocator generic and changed
 3177 both the Mac and Windows platforms to use the new allocator instead of
 3178 malloc and free. (SS)
 3179 
 3180 7/24/97 - 8/12/97 (bug fixes/change of features) Completely revamped safe
 3181 sourcing/loading (see safe.n) to hide pathnames, use virtual
 3182 paths tokens instead, improved security in several respects and made it
 3183 more tunable. Multi level interp loading can work too now. Package auto
 3184 loading now works in safe interps as long as the package directory is in
 3185 the auto_path (no deep crawling allowed in safe interps). (DL)
 3186 *** POTENTIAL INCOMPATIBILITY with previous alpha and beta releases ***
 3187 
 3188 7/24/97 (bug fixes) Made Tcl_SetVar* and Tcl_NewString* treat a NULL value
 3189 as an empty string. (This fixes hairy crash case where you would crash
 3190 because load command for other interps assumed presence of
 3191 errorInfo...). (DL)
 3192 
 3193 7/28/97 (bug fix) Fixed pkg_mkIndex to understand namespaces.  It will
 3194 use the export list of a namespace and create auto_index entries for
 3195 all export commands.  Those names are in their fully qualified form in the
 3196 auto_index.  Therefore, I tweaked unknown to try both $cmd and ::$cmd.
 3197 Also fixed pkg_mkIndex so you can have "package require" commands inside
 3198 your packages.  These commands are ignored, which is mostly ok except
 3199 when you must load another package before loading yours because of
 3200 linking dependencies. (BW)
 3201 
 3202 7/28/97 (bug fix) A variable created by the variable command now persists
 3203 until the namespace is destroyed or the variable is unset. This is true even
 3204 if the variable has not been initialized; these variables used to be
 3205 destroyed if an error occurred when accessing them. In addition, the "info
 3206 vars" command lists uninitialized namespace variables, while the "info
 3207 exists" command returns 0 for them. (BL)
 3208 
 3209 7/29/97 (feature change)  Changed the http package to use the ::http
 3210 namespace. http_get renamed to http::geturl, http_config renamed to
 3211 http::config, http_formatQuery renamed to http::formatQuery.
 3212 It now provides the 2.0 version of the package.
 3213 The 1.0 version is still available with the old names.
 3214 *** POTENTIAL INCOMPATIBILITY with Tcl 8.0b2 but not with Tcl 7.6 ***
 3215 
 3216 7/29/97 (bug fix, new feature) Tcl_Main now uses Tcl objects internally to
 3217 preserve NULLs in commands and command output. Added new API procedure
 3218 Tcl_RecordAndEvalObj that resembles Tcl_RecordAndEval but takes an object
 3219 containing a command. (BL)
 3220 
 3221 7/30/97 (bug fix) Tcl freed strings in the environ array even if it
 3222 did not allocate them. (SS)
 3223 
 3224 7/30/97 (bug fix) If a procedure is renamed into a different namespace, it
 3225 now executes in the context of that namespace. (BL)
 3226 
 3227 7/30/97 (bug fix) Prevent renaming of commands into and from namespaces as
 3228 part of hiding them. (JL)
 3229 
 3230 7/31/97 (feature change) Moved the history command from C to tcl.
 3231 This uses the ::history namespace.  The "words" and "substitute" options
 3232 are no longer supported.  In addition, the "keep" option without a value
 3233 returns the current keep limit.  There is a new "clear" option.
 3234 The unknown command now supports !! again. (BW)
 3235 *** POTENTIAL INCOMPATIBILTY  ***
 3236 
 3237 7/30/97 (bug fix) Made sure that a slave can not fool the master into
 3238 hiding the wrong command. Made sure we don't crash in hiding + namespaces
 3239 issues. (DL)
 3240 
 3241 8/4/97 (bug fix) Concat, eval, uplevel, and similar commands were
 3242 incorrectly trimming trailing space characters from their arguments
 3243 even when the space characters were preceded by a backslash. (JO)
 3244 
 3245 8/4/97 (bug fix) Removed the hard link between bgerror and tkerror.
 3246 Only bgerror is supported in tcl core. Tk will still look for a
 3247 tkerror but using regular tcl code for that feature. (DL)
 3248 *** POTENTIAL INCOMPATIBILTY with code relying on the hard link ***
 3249 
 3250 8/6/97 (bug fix) Reduced size required for compiled bytecodes by using a
 3251 more compact encoding for the command pc-to-source map. (BL)
 3252 
 3253 8/6/97 (new feature) Added support for additional compilation and execution
 3254 statistics when Tcl is compiled with the TCL_COMPILE_STATS flag. (BL)
 3255 
 3256 8/7/97 (bug fix) Expressions not in {}s that have a comparison operator as
 3257 the topmost operator must be compiled out-of-line (call the expr cmd at
 3258 runtime) to properly support expr's two-level substitution semantics. An
 3259 example is "set a 2; set b {$a}; puts [expr $b == 2]". (BL)
 3260 
 3261 8/11/97 (bug fix) The catch command would sometimes crash if a variable name
 3262 was given and the bytecode evaluation stack was grown when executing the
 3263 argument script. (BL)
 3264 
 3265 8/12/97 (feature change) Reinstated the variable tcl_precision to control
 3266 the number of digits used when floating-point values are converted to
 3267 strings, with default of 12 digits.  However, had to make tcl_precision
 3268 shared among all interpreters (except that safe interpreters can't
 3269 modify it).  This makes the Tcl 8.0 behavior almost identical to 7.6
 3270 except that the default precision is 12 instead of 6. (JO)
 3271 *** POTENTIAL INCOMPATIBILITY ***
 3272 
 3273 ----------------- Released 8.0, 8/18/97 -----------------------
 3274 
 3275 8/19/97 (bug fix) Minimal fix for glob -nocomplain bugs:
 3276 "glob -nocomplain unreadableDir/*" was generating an anonymous
 3277 error. More in depth fixes will come with 8.1. (DL).
 3278 
 3279 8/20/97 (bug fix) Removed check for FLT_MIN in binary command so
 3280 underflow conditions are handled by the compiler automatic
 3281 conversions. (SS)
 3282 
 3283 8/20/97 (bug fixes) Fixed several compilation-related bugs:
 3284     - Array cmd wasn't detecting arrays that, while compiled, do not yet
 3285       exist (e.g., are marked undefined since they haven't been assigned
 3286       to yet).
 3287     - The GetToken procedure in tclCompExpr.c wasn't recognizing properly
 3288       whether an integer token was invalid. For example, "0x$" is not
 3289       a valid integer.
 3290     - Performance bug in TclExecuteByteCode: the size of its stack frame
 3291       was reduced by over 20% by moving errorInfo code elsewhere.
 3292     - Uninitialized memory read error in tclCompile.c. (BL)
 3293 
 3294 8/21/97 (bug fix) safe::interpConfigure now behave like Tk widget's
 3295 configure : it changes only the options you provide and you can get
 3296 the current value of any single option. New ?-nested boolean? and
 3297 ?-statics boolean? for all safe::interp* commands but we still
 3298 accept (upward compatibility) the previously defined non valued
 3299 flags ?-noStatics? and ?-nestedLoadOk?. Improved the documentation. (DL).
 3300 
 3301 8/22/97 (bug fix) Updated PrintDbl.3 to reflect the fact that the
 3302 tcl_precision variable is still used and that it is now shared by all
 3303 interpreters. (BL)
 3304 
 3305 8/25/97 (bug fix) Fixed array access bug in IllegalExprOperandType
 3306 procedure in tclExecute.c: it was not properly supporting the || and &&
 3307 operators. (BL)
 3308 
 3309 8/27/97 (bug fix) In cases where a channel handler was created with an
 3310 empty event mask while data was still buffered in the channel, the
 3311 channel code would get stuck spinning on a timer that would starve
 3312 idle handlers.  This mostly happened in Tk when reading from stdin. (SS)
 3313 
 3314 9/4/97 (bug fix) Slave interps now inherit the maximum recursion limit
 3315 of their parent instead of starting back at the default. {nb: this still
 3316 does not prevent stack overflow by multi-interps recursion or aliasing} (DL)
 3317 
 3318 9/11/97 (bug fix) An uninitialized variable in Tcl_WaitPid caused
 3319 pipes to fail to report eof properly under Windows. (SS)
 3320 
 3321 9/12/97 (bug fix) "exec" was misidentifying some DOS executables as not
 3322 executable. (CCS)
 3323 
 3324 9/14/97 (bug fix) Was using the wrong structure in sizeof operation in
 3325 tclUnixChan.c. (JL)
 3326 
 3327 9/15/97 (bug fix) Fixed notifier to break out of do-one-event loop if
 3328 Tcl_WaitForEvent returns 1, so that callers of Tcl_DoOneEvent will get
 3329 a chance to check whether the event just handled is significant. This
 3330 affected mainly recursive calls to Tcl_VWaitCmd; these did not get a
 3331 chance to notice that the variable they were waiting for has been set
 3332 and thus they didn't terminate the vwait. (JL, DL, SS)
 3333 
 3334 9/15/97 (bug fix) Alignment problems in "binary format" would cause a
 3335 crash on some platforms when formatting floating point numbers. (SS)
 3336 
 3337 9/15/97 (bug fix) Fixed bug in Macintosh socket code.  Now passes all
 3338 tests in socket.test that are not platform specific. (Thanks to Mark
 3339 Roseman for the pointer on the fix.)  (RJ)
 3340 
 3341 9/18/97 (bug fix) Fixed bug -dictionary option of lsort that could
 3342 cause the compare function to run off the end of an array if the
 3343 number only contained 0's. (Thanks to Greg Couch for the report.) (RJ)
 3344 
 3345 9/18/97 (bug fix) TclFinalizeEnvironment was not cleaning up
 3346 properly. (DL, JI)
 3347 
 3348 9/18/97 (bug fix) Fixed long-standing bug where an "array get" command
 3349 did not trigger traces on the array or its elements. (BL)
 3350 
 3351 9/18/97 (bug fixes) Fixed compilation-related bugs:
 3352     - Fixed errorInfo traceback information for toplevel coomands that
 3353       contain nested commands.
 3354     - In the expr command, && and || now accept boolean operands as well
 3355       as numeric ones. (BL)
 3356 
 3357 9/22/97 (bug fix) Fixed bug that prevented translation modes from being
 3358 set independently for input and output on sockets if input was "auto". (JL)
 3359 
 3360 9/24/97 (bug fix) Tcl_EvalFile(3) and thus source(n) now works fine on
 3361 files containing NUL chars. (DL)
 3362 
 3363 9/26/97 (bug fix) Fixed use of uninitialized memory in the environ array
 3364 that later could cause random core dumps. Applies to all platforms. (JL)
 3365 
 3366 9/26/97 (bug fix) Fixed use of uninitialized memory in socket address data
 3367 structure under some circumstances. This could cause random core dumps.
 3368 This applies only to Unix. (JL)
 3369 
 3370 9/26/97 (bug fix) Opening files on PC-NFS volumes would cause a hang
 3371 until the system timed after the file was closed. (SS)
 3372 
 3373 10/6/97 (bug fix) The join(n) command, though objectified, was loosing
 3374 NULs in the joinString and in list elements after the 2nd one.
 3375 Now you can "join $list \0" for instance. (DL)
 3376 
 3377 10/9/97 (bug fix) Under windows, if env(TMP) or env(TEMP) referred to a
 3378 non-existent directory, exec would fail when trying to create its temporary
 3379 files. (CCS)
 3380 
 3381 10/9/97 (bug fix) Under mac and windows, "info hostname" would crash if
 3382 sockets were installed but the hostname could not be determined anyhow.
 3383 Tcl_GetHostName() was returning NULL when it should have been returning
 3384 an empty string. (CCS)
 3385 
 3386 10/10/97 (bug fix) "file attribute /" returned error on windows. (CCS)
 3387 
 3388 10/10/97 (bug fix) Fixed the auto_load procedure to handle procedures
 3389 defined in namespaces better.  Also fixed pgk_mkIndex so it sees procedures
 3390 defined in nested namespaces.  Index entries are still only made for
 3391 exported procedures. (BW)
 3392 
 3393 10/13/97 (bug fix) On unix, for files with unknown group or owner
 3394 attributes, querying the "file attributes" would return an error rather than
 3395 returning the group's or owner's id number, although tha command accepts
 3396 numbers when setting the file's group or owner.  (CCS)
 3397 
 3398 10/22/97 (bug fix) "fcopy" did not eval the callback script at the
 3399 global scope. (SS)
 3400 
 3401 10/22/97 (bug fix) Fixed the signature of the CopyDone callback used in
 3402 the http package(s) so they can handle error cases properly. (BW)
 3403 
 3404 10/28/97 (bug fixes) Fixed a problem where lappend would free the Tcl object
 3405 in a variable if a Tcl_ObjSetVar2 failed because of an error calling a trace
 3406 on the variable. (BL)
 3407 
 3408 10/28/97 (bug fix) Changed binary scan to properly handle sign
 3409 extension of integers on 64-bit or larger machines. (SS)
 3410 
 3411 11/3/97 (bug fixes) Fixed several bugs:
 3412     - expressions such as "expr ($x)" must be compiled out-of-line
 3413       (call the expr command procedure at runtime) to ensure the correct
 3414       behavior when "$x" is an expression such as "5+10".
 3415     - "array set a {}" now creates a new array var with an empty array
 3416       value if the var didn't already exist.
 3417     - "lreplace $foo end end" no longer returns an error (just an empty
 3418       list) if foo is empty.
 3419     - upvar will no longer create a variable in a namespace that refers
 3420       to a variable in a procedure.
 3421     - deleting a command trace within a command trace callback would
 3422       make the code that calls traces to reference freed memory.
 3423     - significantly sped up "string first" and "string last" (fix from
 3424       darrel@gemstone.com).
 3425     - seg fault in Tcl_NewStringObj() when a NULL is passed as the byte
 3426       pointer argument and Tcl is compiled with -DTCL_MEM_DEBUG.
 3427     - documentation and error msg fixes. (BL)
 3428 
 3429 11/3/97 (bug fix) Fixed a number of I/O bugs related to word sizes on
 3430 64-bit machines. (SS)
 3431 
 3432 11/6/97 (bug fix) The exit code of the first process created by Tcl
 3433 on Windows was not properly reported due to an initialization
 3434 problem. (SS)
 3435 
 3436 ----------------- Released 8.0p1, 11/7/97 -----------------------
 3437 
 3438 11/19/97 (bug fix) Fixed bug in linsert where it sometimes accidently
 3439 cleared out a shared argument list object. (BL).
 3440 
 3441 11/19/97 (bug fix) Autoloading in namespaces was not working properly.
 3442 auto_mkindex is still not really namespace aware but most common
 3443 cases should now be handled properly (see init.test). (BW, DL)
 3444 
 3445 11/20/97 (enhancement) Made the changes required by the new Apple
 3446 Universal Headers V.3.0, so that Tcl will compile with CW Pro 2.
 3447 
 3448 11/24/97 (bug fix) Fixed tests in clock test suite that needed the
 3449 -gmt flag set.  Thanks to Jan Nijtmans for reporting the problem. (RJ)
 3450 
 3451 ----------------- Released 8.0p2, 11/25/97 -----------------------
 3452 
 3453 12/3/97 (bug fix/optimization) Removed uneeded and potentially dangerous
 3454 instances of double evaluations if "if" and "expr" statements from
 3455 the library files. It is recommended that unless you need a double
 3456 evaluation you always use "expr {...}" instead of "expr ..." and
 3457 "if {...} ..." instead of "if ... ...". It will also be faster
 3458 thanks to the byte compiler. (DL)
 3459 
 3460 ---- Shipped as part of the plugin2.0b5 as 8.0p2Plugin1, Dec 8th 97 ----
 3461 
 3462 12/8/97 (bug fix) Need to protect the newly accepted channel in an
 3463 accept callback on a socket, otherwise the callback may close it and
 3464 cause an error, which would cause the C code to attempt to close the
 3465 now deleted channel. Bumping the refcount assures that the channel sticks
 3466 around to be really closed in this case. (JL)
 3467 
 3468 12/8/97 (bug fix) Need to protect the channel in a fileevent so that it
 3469 is not deleted before the fileevent handler returns. (CS, JL)
 3470 
 3471 12/18/97 (bug fix) In the opt argument parsing package: if the description
 3472 had only flags, the "too many arguments" case was not detected. The default
 3473 value was not used for the special "args" ending argument. (DL)
 3474 
 3475 1/15/98 (improvement) Moved common part of initScript in common file.
 3476 Moved windows specific initialization to init.tcl so you can initialize
 3477 Tcl in windows without having to call Tcl_Init which is now only
 3478 searching for init.tcl {back ported from 8.1}. (DL)
 3479 
 3480 ---- Shipped as part of the plugin as 8.0p2Plugin2, Jan 15th 98 ----
 3481 
 3482 5/27/98 (bug fix) Windows socket driver did not notice new data arriving
 3483 on nonblocking sockets until the event loop was entered. (SS)
 3484 
 3485 5/27/98 (bug fix) Windows socket driver used FIONREAD, which is not
 3486 supported correctly by WinSock. (SS)
 3487 
 3488 6/9/98 (bug fix) Generic channel code failed to report readable file
 3489 events on buffered data that was left behind by a gets or read that
 3490 did not consume all available data. (SS)
 3491 
 3492 6/18/98 (bug fix) Compilation of loop expressions was too aggressive
 3493 and incorrectly inlined non-literal expressions. (SS)
 3494 
 3495 6/18/98 (bug fix) "info var" and "info locals" incorrectly reported
 3496 the existence of compiler temporary variables. (SS)
 3497 
 3498 6/18/98 (bug fix) Dictionary sorting used signed character
 3499 comparisons. (SS)
 3500 
 3501 6/18/98 (bug fix) Compile procs corrupted the exception stack in some
 3502 cases. (SS)
 3503 
 3504 6/18/98 (bug fix) Array set had erratic behavior when initializing a
 3505 variable from an empty value list. (SS)
 3506 
 3507 6/18/98 (bug fix) The Windows registry package had a bad bounds check
 3508 that could lead to a crash. (SS)
 3509 
 3510 6/18/98 (bug fix) The foreach compile proc did not correctly handle
 3511 non-local variable references. (SS)
 3512 
 3513 6/25/98 (new features) Added name resolution hooks to support [incr Tcl].
 3514 There are new internal Tcl_*Resolver* APIs to add, query and remove the hooks.
 3515 With this changes it should be possible to dynamically load [incr Tcl]
 3516 as an extension. (MM)
 3517 
 3518 7/1/97 (bug fix) The commands "info args, body, default, procs" did
 3519 not correctly handle imported procedures. (RJ)
 3520 
 3521 7/6/98 (improvement) pkg_mkIndex now implements the "package require"
 3522 command.  This makes it possible to create index files for packages
 3523 that require another package and then execute code from that package in
 3524 their file. Previously, this would throw an error because the required
 3525 package had not been loaded.  The -nopkgrequied flag is provided to
 3526 revert back to the old functionality. (EMS)
 3527 
 3528 7/6/98 (improvement) back-ported the -direct flag from 8.1 into
 3529 pkg_mkIndex.  This results in pkgIndex.tcl files that contain direct
 3530 source or load commands instead of tclPkgSetup commands. (EMS)
 3531 
 3532 7/6/98 (improvement) made changes to the AuxData items structures to support
 3533 storage of compiled scripts on disk. Also some related minor changes in
 3534 the compilation and execution engine. (EMS)
 3535 
 3536 6/4/98 (enhancement) Added new internal routines to support inserting
 3537 and deleting from the stat, access, and open-file-channel mechanisms.
 3538 TclAccessInsertProc, TclStatInsertProc, & TclOpenFileChannelInsertProc
 3539 insert pointers to such routines; TclAccessDeleteProc, TclStatDeleteProc,
 3540 & TclOpenFileChannelDeleteProc delete pointers to such routines.  See
 3541 the file generic/tclIOUtils.c for more details. (SKS)
 3542 
 3543 7/1/98 (enhancement) Added a new internal C variable
 3544 tclPreInitScript.  This is a pointer to a string that may hold an
 3545 initialization script; If this pointer is non-NULL it is evaluated in
 3546 Tcl_Init() prior to the built-in initialization script defined in the
 3547 file generic/tclInitScript.h.  (SKS)
 3548 
 3549 7/6/98 (bug fix) Removed dead code in PlatformInitExitHandler so that
 3550 the TCL_LIBRARY value can be safely patched in binaries. (BW)
 3551 
 3552 7/24/98 (enhancement) Incorporated a new version of auto_mkindex that
 3553 can support the [incr Tcl] class structures.  This version will index
 3554 all procedures in a source file, not just those where "proc" starts
 3555 at the beginning of the line.  If you want the old behavior, use the
 3556 auto_mkindex_old procedure. (MM)
 3557 
 3558 7/24/98 (feature change) Changed the Windows registry key to be
 3559 HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, and to store the path
 3560 in the default value instead of "Root".  Also, this key can be
 3561 specified at compile time in case Tcl is being used in a different
 3562 context where it needs an alternate library path from the standard Tcl
 3563 installation. (SS)
 3564 
 3565 7/24/98 (feature change) Changed the search order for init.tcl.  The
 3566 tcl_library variable can now be set before calling Tcl_Init to avoid
 3567 doing any searches.  If it isn't set, then Tcl checks
 3568 env(TCL_LIBRARY), the static value set at compile time, an install
 3569 directory relative to the executable, a source directory relative to
 3570 the executable, and a tcl directory relative to the source heirarchy
 3571 containing the executable.  See the comment at the top of
 3572 generic/tclInitScript.h for more details. (SS)
 3573 
 3574 7/27/98 (config change) Changed the use of the DBGX flag in configure.in
 3575 and the makefile to be TCL_DBGX.  Users of tclConfig.sh may need to pass
 3576 this through their configure files with AC_SUBST. (BW)
 3577 
 3578 729/98 (bug fix) Changed [info body] to return a copy of the body of a
 3579 compiled procedure instead of the body itself, to avoid invalidation
 3580 of the internal rep and loss of the byte-codes. (EMS)
 3581 
 3582 8/5/98 (bug fix) The platform init code could walk off the end of a
 3583 buffer when reading the PkgPath registry value on Windows. (SS)
 3584 
 3585 8/5/98 (Windows makefile change) Introduced a set of macros to deal with
 3586 exporting symbols when compiling DLLS on Windows. See win/README for
 3587 details. (EMS)
 3588 
 3589 8/5/98 (addendum) Added a second Windows registry key under
 3590 HKEY_LOCAL_MACHINE\Software\Scriptics\Tcl\8.0, named "pkgPath".
 3591 This is a multi-string value used to initialize the tcl_pkgPath
 3592 variable. This is required if extension DLLs are in architecture specific
 3593 subdirectories. (SS)
 3594 
 3595 8/6/98 (new feature) Added tcl_findLibrary to init.tcl for use by
 3596 extensions, including Tk.  This searches in a canonical way for
 3597 an extensions library directory and initialization file. (BW)
 3598 
 3599 8/10/98 (bug fix) Imported commands used to get lost if the target
 3600 of the import was redefined.  Tcl_CreateCommand and Tcl_CreateObjCommand
 3601 were updated to restore import links. (Note that if you rename a command,
 3602 the import links move to the new name, and if you delete a command then
 3603 the import links get lost. These semantics have not changed.) (MC)
 3604 
 3605 -------- Released 8.0.3 to the Tcl Consortium CD-ROM project, 8/10/98 ------
 3606 
 3607 9/3/98 (bug fix) Tcl_Realloc was failing under Windows because the
 3608 GlobalReAlloc API was not correctly re-allocating blocks that were
 3609 32k+.  The fix was to use newer Win32 APIs (HeapAlloc, HeapFree, and
 3610 HeapReAlloc.) (BS)
 3611 
 3612 10/5/98 (bug fix) Fixed bug in pkg_mkIndex that caused some files that do
 3613 a "package require" of packages in the Tcl libraries to give a warning like
 3614 	warning: "xx.tcl" provides more than one package ({xx 2.0} {yy 0.3})
 3615 and generate a broken pkgIndex.tcl file. (EMS)
 3616 
 3617 10/5/98 (bug fix) Pkg_mkIndex was not doing a case-insensitive comparison
 3618 of extensions to determine whether to load or source a file. Thus, under
 3619 Windows, MYDLLNAME.DLL was sourced, and mydllname.dll loaded. (EMS)
 3620 
 3621 10/5/98 (new feature) Created a new Tcl_Obj type, "procbody". This object's
 3622 internal representation holds a pointer to a Proc structure. Extended
 3623 TclCreateProc to take both strings and "procbody". (EMS)
 3624 
 3625 10/13/98 (bug fix) The "info complete" command can now handle strings
 3626 with NULLs embedded.  Thanks to colin@field.medicine.adelaide.edu.au
 3627 for providing this fix. (RJ)
 3628 
 3629 10/13/98 (bug fix) The "lsort -dictionary" command did not properly
 3630 handle some numbers starting with 0.  Thanks to Richard Hipp
 3631 <drh@acm.org> for submitting the fix to Scriptics. (RJ)
 3632 
 3633 10/13/98 (bug fix) The function Tcl_SetListObj was creating an invalid
 3634 Tcl_Obj if the list had zero elements (despite what the comments said
 3635 it would do).  Thanks to Sebastian Wangnick for reporting the
 3636 problem. (RJ)
 3637 
 3638 10/20/98 (new feature) Added tcl_platform(debug) element to the
 3639 tcl_platform array on Windows platform.  The existence of the debug
 3640 element of the tcl_platform array indicates that the particular Tcl
 3641 shell has been compiled with debug information.  Using
 3642 "info exists tcl_platform(debug)" a Tcl script can direct the
 3643 interpreter to load debug versions of DLLs with the load
 3644 command. (SKS)
 3645 
 3646 10/20/98 (feature change) The Makefile and configure scripts have been
 3647 changed for IRIX to build n32 binaries instead of the old 32 abi
 3648 format.  If you have extensions built with the o32 abi's you will need
 3649 to update them to n32 for them to work with Tcl.  (RJ)
 3650 *** POTENTIAL INCOMPATIBILITY ***
 3651 
 3652 10/23/98 (bug fix) tcl_findLibrary had a stray ] in one of the
 3653 pathnames it searched for the initialization script.  tclInitScript.h
 3654 was incorrectly adding the parent of tcl_library to tcl_pkgPath.  This
 3655 logic was moved into init.tcl, and the initialization of auto_path was
 3656 documented.  Thanks to Donald Porter and Tom Silva for related
 3657 patches. (BW)
 3658 
 3659 10/29/98 (bug fix) Fixed Tcl_NotifyChannel to use Tcl_Preserve instead
 3660 of Tcl_RegisterChannel so that 1) unregistered channels do not get
 3661 closed after their first fileevent, and 2) errors that occur during
 3662 close in a fileevent script are actually reflected by the close
 3663 command. (BW)
 3664 
 3665 10/30/98 (bug fix) Overhaul of pkg_mkIndex to deal with transitive
 3666 package requires and packages split among scripts and binary files.
 3667 Also fixed ommision of global for errorInfo in tcl_findLibrary. (BW)
 3668 
 3669 11/08/98 (bug fix) Fixed the resource command to always detect
 3670 the case where a file is opened a second time with the same
 3671 permissions.  IM claims that this will always cause the same
 3672 FileRef to be returned, but in MacOS 8.1+, this is no longer the case,
 3673 so we have to test for this explicitly. (JI)
 3674 
 3675 11/10/98 (feature change) When compiling with Metrowerk's MSL, use the
 3676 exit function from MSL rather than ExitToShell.  This allows MSL to
 3677 clean up its temporary files. Thanks to Vince Darley for this
 3678 improvement. (JI)
 3679 
 3680 ----------------- Released 8.0.4, 11/19/98 -------------------------
 3681 
 3682 11/20/98 (bug fix) Handle possible NULL return in TclGetStdFiles. (RJ)
 3683 
 3684 11/20/98 (bug fix) The dltests would not build on SGI.  They reported
 3685 that you could not mix n32 with 032 binaries.  The configure script
 3686 has been modified to get the EXTRA_CFLAGS from the tcl configure
 3687 script.  [Bug id: 840] (RJ)
 3688 
 3689 12/3/98 (bug fix) Windows NT creates sockets so they are inheritable
 3690 by default.  Fixed socket code so it turns off this bit right after
 3691 creation so sockets aren't kept open by exec'ed processes. [Bug: 892]
 3692 Thanks to Kevin Kenny for this fix.  (SS)
 3693 
 3694 1/11/98 (bug fix)  On HP, "info sharedlibextension" was returning
 3695 empty string on static apps.  It now always returns ".sl".  (RJ)
 3696 
 3697 1/28/99 (configure change) Now support -pipe option on gcc.  (RJ)
 3698 
 3699 2/2/99 (bug fix) Fixed initialization problem on Windows where no
 3700 searching for init.tcl would be performed if the registry keys were
 3701 missing.  (stanton)
 3702 
 3703 2/2/99 (bug fix) Added support for HKEY_PERFORMANCE_DATA and
 3704 HKEY_DYN_DATA keys in the "registry" command. (stanton)
 3705 
 3706 2/2/99 (bug fix) ENOTSUP and EOPNOTSUPP clashed on some Linux
 3707 variants. (stanton)
 3708 
 3709 2/2/99 (enhancement) The "open" command has been changed to use the
 3710 object interfaces. (stanton)
 3711 
 3712 2/2/99 (bug fix) In some cases Tcl would crash due to an overflow of
 3713 the exception stack resulting from a missing byte code in some
 3714 expressions. (stanton)
 3715 
 3716 2/2/99 (bug fix) Changed configure so Linux and IRIX shared libraries
 3717 are linked with the system libraries. (stanton)
 3718 
 3719 2/2/99 (bug fix) Added support for BSDI 4.x (BSD/OS-4*) to the
 3720 configure script. (stanton)
 3721 
 3722 2/2/99 (bug fix) Fixed bug where upvar could resurrect a namespace
 3723 variable after the namespace had been deleted. (stanton)
 3724 
 3725 2/2/99 (bug fix) In some cases when creating variables, the
 3726 interpreter result was being modified even if the TCL_LEAVE_ERR_MSG
 3727 flag was set. (stanton)
 3728 
 3729 2/2/99 (bug fix & new feature) Changed the socket drivers to properly
 3730 handle failures during an async socket connection.  Added a new
 3731 fconfigure option "-error" to retrieve the failure message.  See the
 3732 socket.n manual entry for details. (stanton)
 3733 
 3734 2/2/99 (bug fix) Deleting a renamed interp alias could result in a
 3735 panic. (stanton)
 3736 
 3737 2/2/99 (feature change/bug fix) Changed the behavior of "file
 3738 extension" so that it splits at the last period.  Now the extension of
 3739 a file like "foo..o" is ".o" instead of "..o" as in previous versions.
 3740 *** POTENTIAL INCOMPATIBILITY ***
 3741 
 3742 ----------------- Released 8.0.5, 3/9/99 -------------------------
 3743 
 3744 ======== Changes for 8.0 go above this line ========
 3745 ======== Changes for 8.1 go below this line ========
 3746 
 3747 6/18/97 (new feature) Tcl now supports international character sets:
 3748     - All C APIs now accept UTF-8 strings instead of iso8859-1 strings,
 3749       wherever you see "char *", unless explicitly noted otherwise.
 3750     - All Tcl strings represented in UTF-8, which is a convenient
 3751       multi-byte encoding of Unicode.  Variable names, procedure names,
 3752       and all other values in Tcl may include arbitrary Unicode characters.
 3753       For example, the Tcl command "string length" returns how many
 3754       Unicode characters are in the argument string.
 3755     - For Java compatibility, embedded null bytes in C strings are
 3756       represented as \xC080 in UTF-8 strings, but the null byte at the end
 3757       of a UTF-8 string remains \0.  Thus Tcl strings once again do not
 3758       contain null bytes, except for termination bytes.
 3759     - For Java compatibility, "\uXXXX" is used in Tcl to enter a Unicode
 3760       character.  "\u0000" through "\uffff" are acceptable Unicode
 3761       characters.
 3762     - "\xXX" is used to enter a small Unicode character (between 0 and 255)
 3763       in Tcl.
 3764     - Tcl automatically translates between UTF-8 and the normal encoding for
 3765       the platform during interactions with the system.
 3766     - The fconfigure command now supports a -encoding option for specifying
 3767       the encoding of an open file or socket.  Tcl will automatically
 3768       translate between the specified encoding and UTF-8 during I/O.
 3769       See the directory library/encoding to find out what encodings are
 3770       supported (eventually there will be an "encoding" command that
 3771       makes this information more accessible).
 3772     - There are several new C APIs that support UTF-8 and various encodings.
 3773       See Utf.3 for procedures that translate between Unicode and UTF-8
 3774       and manipulate UTF-8 strings. See Encoding.3 for procedures that
 3775       create new encodings and translate between encodings.  See
 3776       ToUpper.3 for procedures that perform case conversions on UTF-8
 3777       strings.
 3778 
 3779 9/18/97 (enhancement) Literal objects are now shared by the ByteCode
 3780 structures created when compiled different scripts. This saves up to 45%
 3781 of the total memory needed for all literals. (BL)
 3782 
 3783 9/24/97 (bug fixes) Fixed Tcl_ParseCommand parsing of backslash-newline
 3784 sequences at start of command words. Suppressed Tcl_EvalDirect error logging
 3785 if non-TCL_OK result wasn't an error. (BL)
 3786 
 3787 10/17/97 (feature enhancement) "~username" now refers to the users' home
 3788 directory on Windows (previously always returned failure). (CCS)
 3789 
 3790 10/20/97 (implementation change) The Tcl parser has been completely rewritten
 3791 to make it more modular.  It can now be used to parse a script without actually
 3792 executing it.  The APIs for the new parser are not correctly exported, but
 3793 they will eventually be exported and augmented with Tcl commands so that
 3794 Tcl scripts can parse other Tcl scripts. (JO)
 3795 
 3796 10/21/97 (API change) Added "flags" argument to Tcl_EvalObj, removed
 3797 Tcl_GlobalEvalObj procedure.  Added new procedures Tcl_Eval2 and
 3798 Tcl_EvalObjv. (JO)
 3799 *** POTENTIAL INCOMPATIBILITY ***
 3800 
 3801 10/22/97 (API change) Renamed Tcl_ObjSetVar2 and Tcl_ObjGetVar2 to
 3802 Tcl_SetObjVar2 and Tcl_GetObjVar2 (for consistency with other C APIs)
 3803 and changed the name arguments to be strings instead of objects.  (JO)
 3804 *** POTENTIAL INCOMPATIBILITY ***
 3805 
 3806 10/27/97 (enhancement) Bytecode compiler rewritten to use the new Tcl
 3807 parser. (BL)
 3808 
 3809 11/3/97 (New routines) Added Tcl_AppendObjToObj, which appends the
 3810 string rep of one Tcl_Obj to another. Added Tcl_GetIndexFromObjStruct,
 3811 which is similar to Tcl_GetIndexFromObj, except that you can give an
 3812 offset between strings. This allows Tcl_GetIndexFromObjStruct to be
 3813 called with a table of records which have strings in them. (SRP)
 3814 
 3815 12/4/97 (enhancement) New Tcl expression parser added. Added new procedure
 3816 Tcl_ParseExpr and new token types TCL_TOKEN_SUB_EXPR and
 3817 TCL_TOKEN_OPERATOR. Expression compiler is reimplemented to use this
 3818 parser. (BL)
 3819 
 3820 12/9/97 (bug fix) Tcl_EvalObj() increments/decrements the refcount of the
 3821 script object to prevent the object from deleting itself while in the
 3822 middle of being evaluated. (CCS)
 3823 
 3824 12/9/97 (bug fix) Memory leak in Tcl_GetsObjCmd(). (CCS)
 3825 
 3826 12/11/97 (bug fix) Environment array leaked memory when compiled with
 3827 Visual C++. (SS)
 3828 
 3829 12/11/97 (bug fix) File events and non-blocking I/O did not work on
 3830 pipes under Windows.  Changed to use threads to achieve non-blocking
 3831 behavior. (SS)
 3832 
 3833 12/18/97 (bug fixes) Fixed segfault in "namespace import"; importing a
 3834 procedure that causes a cycle now returns an error. Modified "info procs",
 3835 "info args", "info body", and "info default" to return information about
 3836 imported procedures as well as procedures defined in a namespace. (BL)
 3837 
 3838 12/19/97 (enhancement) Added new Tcl_GetString() procedure that can be used
 3839 in place of Tcl_GetStringFromObj() if the string representation's length
 3840 isn't needed. (BL)
 3841 
 3842 12/18/97 (bug fix) In the opt argument parsing package: if the description
 3843 had only flags, the "too many arguments" case was not detected. The default
 3844 value was not used for the special "args" ending argument. (DL)
 3845 
 3846 1/7/98 (clean up) Moved everything not absolutly necessary out of init.tcl
 3847 procs now in auto.tcl and package.tcl can be autoloaded if needed. (DL)
 3848 
 3849 1/7/98 (enhancement) tcltest made at install time will search for it's
 3850 init.tcl where it is, even when using virtual path compilation. (DL)
 3851 
 3852 1/8/98 (os bug workaround) when needed, using a replacement for memcmp so
 3853 string compare "char with high bit set" "char w/o high bit set" returns
 3854 the expected value on all platforms. (DL)
 3855 
 3856 1/8/98 (unix portability/configure) building from .../unix/targetName/
 3857 subdirectories and simply using "../configure" should now work fine. (DL)
 3858 
 3859 1/14/98 (enhancement) Added new regular expression package that
 3860 supports AREs, EREs, and BREs.  The new package includes new escape
 3861 characters, meta-syntax, and character classes inside brackets.
 3862 Regexps involving backslashes may behave differently.  (MH)
 3863 *** POTENTIAL INCOMPATIBILITY ***
 3864 
 3865 1/16/98 (os workaround) Under windows, "file volume" was causing chatter
 3866 and/or several seconds of hanging when querying empty floppy drives.
 3867 Changed implementation to call an empirically-derived function that doesn't
 3868 cause this. (CCS)
 3869 
 3870 1/16/98 (enhancement) Converted regular expressions to a Tcl_Obj type so
 3871 their compiled form gets cached automatically.  Reduced NSUBEXP from 100
 3872 to 20. (BW)
 3873 
 3874 1/16/98 (documentation) Change unclear documentation and comments for
 3875 functions like Tcl_TranslateFileName() and Tcl_ExternalToUtfDString().  Now
 3876 it explicitly says they take an uninitialized or free DString.  A DString
 3877 that is "empty" or "not holding anything" could have been interpreted as one
 3878 currently with a zero length, but with a large dynamically allocated buffer.
 3879 (CCS)
 3880 
 3881 ----------------- Released 8.1a1, 1/22/98 -----------------------
 3882 
 3883 1/28/98 (new feature) Added a "-direct" optional flag to pkg_mkIndex
 3884 to generate direct loading package indexes (such those you need
 3885 if you use namespaces and plan on using namespace import just after
 3886 package require). pkg_mkIndex still has limitations regarding
 3887 package dependencies but errors are now ignored and with -direct, correct
 3888 package indexes can be generated even if there are dependencies as long
 3889 as the "package provide" are done early enough in the files. (DL)
 3890 
 3891 1/28/98 (enhancement) Performance tuning of regexp and regsub. (CCS)
 3892 
 3893 1/28/98 (bug fix) regexp and regsub with "-indices" returned the byte-offsets
 3894 of the characters in the UTF-8 representation, not the character offsets
 3895 themselves. (CCS)
 3896 
 3897 1/28/98 (bug fix) "clock format 0 -format %Z -gmt 1" would return the local
 3898 timezone string instead of "GMT" on Solaris and Windows.
 3899 
 3900 1/28/98 (bug fix) Restore tty settings when closing serial device on Unix.
 3901 This is good behavior when closing real serial devices, essential when
 3902 closing the pseudo-device /dev/tty because the user's terminal settings
 3903 would be left useless, in raw mode, when tcl quit. (CCS)
 3904 
 3905 1/28/98 (bug fix) Tcl_OpenCommandChannel() was modifying the contents of the
 3906 argv array passed to it, causing problems for any caller that wanted to
 3907 continue to use the argv array after calling Tcl_OpenCommandChannel(). (CCS)
 3908 
 3909 2/1/98 (bug fix) More bugs with %Z in format string argument to strftime():
 3910 1. Borland always returned empty string.
 3911 2. MSVC always returned the timezone string for the current time, not the
 3912    timezone string for the specified time.
 3913 3. With MSVC, "clock format 0 -format %Z -gmt 1" would return "GMT" the first
 3914    time it was called, but would return the current timezone string on all
 3915    subsequent calls. (CCS)
 3916 
 3917 2/1/98 (bug fix) "file stat" was broken on Windows.
 3918 1. "file stat" of a root directory (local or network) or a relative path that
 3919    resolved to a root directory (c:. when in pwd was c:/) was returning error.
 3920 2. "file stat" on a regular file (S_IFREG), the st_mode was sign extended to
 3921    a negative int if the platform-dependant type "mode_t" was declared as a
 3922    short instead of an unsigned short.
 3923 3. "file stat" of a network directory, the st_dev was incorrectly reported
 3924    as the id of the last accessed local drive rather than the id of the
 3925    network drive. (CCS)
 3926 
 3927 2/1/98 (bug fix) "file attributes" of a relative path that resolved to a
 3928 root directory was returning error. (CCS)
 3929 
 3930 2/1/98 (bug fix) Change error message when "file attribute" could not
 3931 determine the attributes for a file.  Previously it would return different
 3932 error messages on Unix vs.  Windows vs. Mac. (CCS)
 3933 
 3934 2/4/98 (bug fixes) Fixed several instances of bugs where the parser/compiler
 3935 would reach outside the range of allocated memory. Improved the array
 3936 lookup algorithm in set compilation. (DL)
 3937 
 3938 2/5/98 (change) The TCL_PARSE_PART1 flag for Set/Get(Obj)Var2 C APIs is now
 3939 deprecated and ignored. The part1 is always parsed when the part2 argument
 3940 is NULL. This is to avoid a pattern of errors for extension writers converting
 3941 from string based Tcl_SetVar() to new Tcl_SetObjVar2() and who could easily
 3942 forget to provide the flag and thus get code working for normal variables
 3943 but not for array elements. The performance hit is minimal. A side effect
 3944 of that change is that is is no longer possible to create scalar variables
 3945 that can't be accessed by tcl scripts because of their invalid name
 3946 (ending with parenthesis). Likewise it is also parsed and checked to
 3947 ensure that you don't create array elements of array whose name is a valid
 3948 array element because they would not be accessible from scripts anyway.
 3949 Note: There is still duplicate array elements parsing code. (DL)
 3950 *** POTENTIAL INCOMPATIBILITY ***
 3951 
 3952 2/11/98 (bug fix) Sharing objects between interps, such as by "interp
 3953 eval" or "send" could cause a crash later when dereferencing an interp
 3954 that had been deleted, given code such as:
 3955 	set a {set x y}
 3956 	interp create foo
 3957 	interp eval foo $a
 3958 	interp delete foo
 3959 	unset a
 3960 Interp "foo" was gone, but "a" had a internal rep consisting of bytecodes
 3961 containing a dangling pointer to "foo".  Unsetting "a" would attempt to
 3962 return resources back to "foo", causing a crash as random memory was
 3963 accessed.  The lesson is that that if an object's internal rep depends on
 3964 an interp (or any other data structure) it must preserve that data in
 3965 some fashion. (CCS)
 3966 
 3967 2/11/98 (enhancement) The "interp" command was returning inconsistent error
 3968 messages when the specified slave interp could not be found. (CCS)
 3969 
 3970 2/11/98 (bug fix) Result codes like TCL_BREAK and TCL_CONTINUE were not
 3971 propagating through the master/slave interp boundaries, such as "interp
 3972 eval" and "interp alias".  TCL_OK, TCL_ERROR, and non-standard codes like
 3973 teh integer 57 work.  There is still a question as to whether TCL_RETURN
 3974 can/should propagate. (CCS)
 3975 
 3976 2/11/98 (bug fix) TclCompileScript() was derefering memory 1 byte before
 3977 start of the string to compile, looking for ']'. (CCS,DL)
 3978 
 3979 2/11/98 (bug fix) Tcl_Eval2() was derefering memory 1 byte before start
 3980 of the string to eval, looking for ']'. (CCS,DL)
 3981 
 3982 2/11/98 (bug fix) Compiling "set a(b" was running off end of string. (CCS,DL)
 3983 
 3984 2/11/98 (bug fix) Windows initialization code was dereferencing
 3985 uninitialized memory if TCL_LIBRARY environment didn't exist. (CCS)
 3986 
 3987 2/11/98 (bug fix) Windows "registry" command was dereferencing
 3988 uninitialized memory when constructing the $errorCode for a failed
 3989 registry call. (CCS)
 3990 
 3991 2/11/98 (enhancement) Eliminate the TCL_USE_TIMEZONE_VAR definition from
 3992 configure.in, because it was the same information as the already existing
 3993 HAVE_TM_ZONE definition.  The lack of HAVE_TM_ZONE is used to work around a
 3994 Solaris and Windows bug where "clock format [clock sec] -format %Z -gmt 1"
 3995 produces the local timezone string instead of "GMT". (CCS)
 3996 
 3997 2/11/98 (bug fix) Memleaks and dereferencing of uninitialized memory in
 3998 regexp if an error occurred while compiling a regular expression. (CCS).
 3999 
 4000 2/18/98 (new feature) Added mutexes and thread local storage in order
 4001 to make Tcl thread safe.  For testing purposes, there is a testthread
 4002 command that creates a new thread and an interpreter inside it.  See
 4003 thread.test for examples, but this script-level interface is not fixed.
 4004 Each thread has its own notifier instance to manage its own events,
 4005 and threads can post messages to each other's message queue.
 4006 This uses pthreads on UNIX, and native thread support on other platforms.
 4007 You enable this by configuring with --enable-threads.  Note that at
 4008 this time *Tk* is still not thread safe. Special thanks to
 4009 Richard Hipp: his earlier implementation inspired this work. (BW, SS, JI)
 4010 
 4011 2/18/98 (hidden feature change) The way the env() array is shared among
 4012 interpreters changed.  Updates to env used to trigger write traces in
 4013 other interpreters.  This undocumented feature is no longer implemented.
 4014 Instead, variable tracing is used to keep the C-level environ array in sync
 4015 with the Tcl-level env array. This required adding TCL_TRACE_ARRAY support
 4016 to Tcl_TraceVar2 so that array names works properly. (BW)
 4017 *** POTENTIAL INCOMPATIBILITY ***
 4018 
 4019 2/18/98 (enhancement) Conditional compilation for unix systems (e.g.,
 4020 IRIX, SCO) that use f_bsize instead of st_blksize to determine disk block
 4021 size. (CCS)
 4022 
 4023 2/23/98 (bug fix) Fixed the emulation of polling selects in the threaded
 4024 version of the Unix notifier.  The bug was showing up on a multiprocessor
 4025 as starvation of the notifier thread. (BW)
 4026 
 4027 ----------------- Released 8.1a2, Feb 23 1998 -----------------------
 4028 
 4029 9/22/98 (bug fix) Changed the value of TCL_TRACE_ARRAY so it no longer
 4030 conflicts with the deprecated TCL_PARSE_PART1 flag.  This should
 4031 improve portability of C code. (stanton)
 4032 
 4033 10/6/98 (bug fix) The compile procedure for "if" incorrectly attempted
 4034 to match against the literal string "if", resulting in a stack
 4035 overflow when "::if" was compiled.  It also would incorrectly accept
 4036 "if" instead of "elsif" in later clauses.  (stanton)
 4037 
 4038 10/15/98 (new feature) Added a "totitle" subcommand to the "string"
 4039 command to convert strings to capitalize the first character of a string
 4040 and lowercase all of the other characters. (stanton)
 4041 
 4042 10/15/98 (bug fix) Changed regexp and string commands to properly
 4043 handle case folding according to the Unicode character
 4044 tables. (stanton)
 4045 
 4046 10/21/98 (new feature) Added an "encoding" command to facilitate
 4047 translations of strings between different character encodings.  See
 4048 the encoding.n manual entry for more details. (stanton)
 4049 
 4050 11/3/98 (bug fix) The regular expression character classification
 4051 syntax now includes Unicode characters in the supported
 4052 classes. (stanton)
 4053 
 4054 11/6/98 (bug fix) Variable traces were causing crashes when upvar
 4055 variables went out of scope. [Bug: 796] (stanton)
 4056 
 4057 11/9/98 (bug fix) "format" now correctly handles multibyte characters
 4058 in %s format strings. (stanton)
 4059 
 4060 11/10/98 (new feature) "regexp" now accepts three new switches
 4061 ("-line", "-lineanchor", and "-linestop") that control how regular
 4062 expressions treat line breaks. See the regexp manual entry for more
 4063 details. (stanton)
 4064 
 4065 11/17/98 (bug fix) "scan" now correctly handles Unicode
 4066 characters. (stanton)
 4067 
 4068 11/17/98 (new feature) "scan" now supports XPG3 position specifiers
 4069 and the "%n" conversion character.  See the "scan" manual entry for
 4070 more details. (stanton)
 4071 
 4072 11/17/98 (bug fix) The Tcl memory allocator now returns 8-byte aligned
 4073 chunks of memory which improves performance on Windows and avoids
 4074 crashes on other platforms. [Bug: 834] (stanton)
 4075 
 4076 11/23/98 (bug fix) Applied various regular expression performance bug
 4077 fixes supplied by Henry Spencer. (stanton)
 4078 
 4079 11/30/98 (bug fix) Fixed various thread related race conditions. [Bug:
 4080 880 & 607] (stanton)
 4081 
 4082 11/30/98 (bug fix) Fixed a number of memory overflow and leak
 4083 bugs. [Bug: 584] (stanton)
 4084 
 4085 12/1/98 (new feaure) Added support for Korean encodings. (stanton)
 4086 
 4087 12/1/98 (feature change) Changed the Tcl_EvalObjv interface to remove
 4088 the string and length arguments.
 4089 *** POTENTIAL INCOMPATIBILITY with previous alpha releases ***
 4090 
 4091 12/2/98 (bug fix) Fixed various bugs related to line feed
 4092 translation. [Bug: 887] (stanton)
 4093 
 4094 12/4/98 (new feature) Added a message catalog facility to help with
 4095 localizing Tcl scripts.  Thanks to Mark Harrison for contributing the
 4096 initial implementation of the "msgcat" package. (stanton)
 4097 
 4098 12/7/98 (bug fix) The memory allocator was failing to update the
 4099 block list for large memory blocks that were reallocated into a
 4100 different address. [Bug: 933] (stanton)
 4101 
 4102 ----------------- Released 8.1b1, Dec 10 1998 -----------------------
 4103 
 4104 12/22/98 (performance improvement) Improved the -command option of the
 4105 lsort command to better use the object system for improved
 4106 performance (about 5x speed up).  Thanks to Syd Polk for suppling the
 4107 patch. [RFE: 726] (rjohnson)
 4108 
 4109 2/10/99 (bug fix) Restored the Tcl_ObjSetVar2/Tcl_ObjGetVar2
 4110 interfaces from 8.0 and renamed the Tcl_GetObjVar2/Tcl_SetObjVar2
 4111 interfaces to Tcl_GetVar2Ex and Tcl_SetVar2Ex.  This should provide
 4112 better compatibility with 8.0. (stanton)
 4113 *** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
 4114 
 4115 2/10/99 (bug fix) Made the eval interfaces compatible with 8.0 by
 4116 renaming Tcl_EvalObj to Tcl_EvalObjEx, renaming Tcl_Eval2 to
 4117 Tcl_EvalEx and restoring Tcl_EvalObj and Tcl_GlobalEvalObj interfaces
 4118 so they match Tcl 8.0. (stanton)
 4119 *** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
 4120 
 4121 2/25/99 (bug fix/new feature) On Windows, the channel drivers for
 4122 consoles and serial ports now completely support file events. (redman)
 4123 
 4124 3/5/99 (bug fix) Integrated patches to fix various configure problems
 4125 that affected HP-UX-11, 64-bit IRIX, Linux, and Solaris. (stanton)
 4126 
 4127 3/9/99 (bug fix) Integrated various AIX related patches to improve
 4128 support for shared libraries. (stanton)
 4129 
 4130 3/9/99 (new feature) Added tcl_platform(user) to provide a portable
 4131 way to get the name of the current user. (welch)
 4132 
 4133 3/9/99 (new feature) Integrated the stub library mechanism contributed
 4134 by Jan Nijtmans, Paul Duffin, and Jean-Claude Wippler.  This feature
 4135 should make it possible to write extensions that support multiple
 4136 versions of Tcl simultaneously.  It also makes it possible to
 4137 dynamically load extensions into statically linked interpreters.  This
 4138 patch includes the following changes:
 4139       -	Added a Tcl_InitStubs() interface
 4140       -	Added Tcl_PkgProvideEx, Tcl_PkgRequireEx, Tcl_PkgPresentEx,
 4141       	and Tcl_PkgPresent.
 4142       - Added va_list versions of all VARARGS functions so they can be
 4143 	invoked from wrapper functions.
 4144 See the manual for more information. (stanton)
 4145 
 4146 
 4147 3/10/99 (feature change) Replaced Tcl_AlertNotifier with
 4148 Tcl_ThreadAlert since the Tcl_AlertNotifier function relied on passing
 4149 internal data structures. (stanton)
 4150 *** POTENTIAL INCOMPATIBILITY with previous alpha/beta releases ***
 4151 
 4152 3/10/99 (new feature) Added a Tcl_GetVersion API to make it easier to
 4153 check the Tcl version and patch level from C. (redman)
 4154 
 4155 3/14/99 (feature change) Tried to unify the TclpInitLibrary path
 4156 routines to look in similar places from Windows to UNIX.  The new
 4157 library search path is: TCL_LIBRARY, TCL_LIBRARY/../tcl8.1, relative
 4158 to DLL (Windows Only) relative to installed executable, relative to
 4159 develop executable, and relative to compiled-in in location (UNIX
 4160 Only.)  This fix included:
 4161     - Defining a TclpFindExecutable
 4162     - Moving Tcl_FindExecutable to a common area in tclEncoding.c
 4163     - Modifying the TclpInitLibraryPath routines.
 4164 (surles)
 4165 
 4166 3/14/99 (feature change) Added hooks for TclPro Wrapper to initialize
 4167 the location of the encoding files and libraries.  This fix included:
 4168     - Adding the TclSetPerInitScript routine.
 4169     - Modifying the Tcl_Init routines to evaluate the non-NULL
 4170       pre-init script.
 4171     - Adding the Tcl_SetdefaultEncodingDir and Tcl_GetDefaultEncodingDir
 4172       routines.
 4173     - Modifying the TclpInitLibrary routines to append the default
 4174       encoding dir.
 4175 (surles)
 4176 
 4177 3/14/99 (feature change) Test suite now uses "test" namespace to
 4178 define the test procedure and other auxiliary procedures as well as
 4179 global variables.
 4180     - Global array testConfige is now called ::test::testConfig.
 4181     - Global variable VERBOSE is now called ::test::verbose, and
 4182       ::test::verbose no longer works with numerical values.  We've
 4183       switched to a bitwise character string.  You can set
 4184       ::test::verbose by using the -verbose option on the Tcl command
 4185       line.
 4186     - Global variable TESTS is now called ::test::matchingTests, and
 4187       can be set on the Tcl command line via the -match option.
 4188     - There is now a ::test::skipTests variable (works similarly to
 4189       ::test::matchTests) that can be set on the Tcl command line via
 4190       the -match option.
 4191     - The test suite can now be run in any working directory.  When
 4192       you run "make test", the working directory is nolonger switched
 4193       to ../tests.
 4194 (hirschl)
 4195 *** POTENTIAL INCOMPATIBILITY ***
 4196 
 4197 --------------- Released 8.1b2, March 16, 1999 ----------------------
 4198 
 4199 3/18/99 (bug fix) Fixed missing/incorrect characters in shift-jis table
 4200 (stanton)
 4201 
 4202 3/18/99 (feature change) The glob command ignores the
 4203 FS_CASE_IS_PRESERVED bit on file systesm and always returns
 4204 exactly what it gets from the system. (stanton)
 4205 *** POTENTIAL INCOMPATIBILITY ***
 4206 
 4207 3/19/99 (new feature) Added support for --enable-64bit.  For now,
 4208 this is only supported on Solaris 7 64bit (SunOS 5.7) using the Sun
 4209 compiler. (redman)
 4210 
 4211 3/23/99 (bug fix) Fixed fileevents and gets on Windows consoles and
 4212 serial devices so that non-blocking channels do not block on partial
 4213 input lines.  (redman)
 4214 
 4215 3/23/99 (bug fix) Added a new Tcl_ServiceModeHook interface.
 4216 This is used on Windows to avoid the various problems that people
 4217 have been seeing where the system hangs when tclsh is running
 4218 outside of the event loop. As part of this, renamed
 4219 TclpAlertNotifier back to Tcl_AlertNotifier since it is public.
 4220 (stanton)
 4221 
 4222 3/23/99 (feature change) Test suite now uses "tcltest" namespace to
 4223 define the test procedure and other auxiliary procedures as well as
 4224 global variables.  The previously chosen "test" namespace was thought
 4225 to be too generic and likely to create conflits.
 4226 (hirschl)
 4227 *** POTENTIAL INCOMPATIBILITY ***
 4228 
 4229 3/24/99 (bug fix) Make sockets thread safe on Windows.
 4230 (redman)
 4231 
 4232 3/24/99 (bug fix) Fix cases where expr would incorrect return
 4233 a floating point value instead of an integer. (stanton)
 4234 
 4235 3/25/99 (bug fix) Added ASCII to big5 and gb2312 encodings.
 4236 (stanton)
 4237 
 4238 3/25/99 (feature change) Changed so aliases are invoked at current
 4239 scope in the target interpreter instead of at the global scope.  This
 4240 was an incompatibility introduced in 8.1 that is being removed.
 4241 (stanton)
 4242 *** POTENTIAL INCOMPATIBILITY with previous beta releases ***
 4243 
 4244 3/26/99 (feature change) --enable-shared is now the default and build
 4245 Tcl as a shared library; specify --disable-shared to build a static Tcl
 4246 library and shell.
 4247 *** POTENTIAL INCOMPATIBILITY ***
 4248 
 4249 3/29/99 (bug fix)  Removed the stub functions and changed the stub
 4250 macros to just use the name without params. Pass &tclStubs into the
 4251 interp (don't use tclStubsPtr because of collisions with the stubs on
 4252 Solaris). (redman)
 4253 
 4254 3/30/99 (bug fix) Loadable modules are now unloaded at the last
 4255 possible moment during Tcl_Finalize to fix various exit-time crashes.
 4256 (welch)
 4257 
 4258 3/30/99 (bug fix) Tcl no longer calls setlocale().  It looks at
 4259 env(LANG) and env(LC_TYPE) instead.  (stanton)
 4260 
 4261 4/1/99 (bug fix) Fixed the Ultrix multiple symbol definition problem.
 4262 Now, even Tcl includes a copy of the Tcl stub library. (redman)
 4263 
 4264 4/1/99 (bug fix) Internationalized the registry package.
 4265 
 4266 4/1/99 (bug fix) Changed the implemenation of Tcl_ConditionWait and
 4267 Tcl_ConditionNotify on Windows.  The new algorithm eliminates a race
 4268 condition and was suggested by Jim Davidson. (welch)
 4269 
 4270 4/2/99 (new apis)  Made various Unicode utility functions public.
 4271 Tcl_UtfToUniCharDString, Tcl_UniCharToUtfDString, Tcl_UniCharLen,
 4272 Tcl_UniCharNcmp, Tcl_UniCharIsAlnum, Tcl_UniCharIsAlpha,
 4273 Tcl_UniCharIsDigit, Tcl_UniCharIsLower, Tcl_UniCharIsSpace,
 4274 Tcl_UniCharIsUpper, Tcl_UniCharIsWordChar, Tcl_WinUtfToTChar,
 4275 Tcl_WinTCharToUtf (stanton)
 4276 
 4277 4/2/99 (feature change) Add new DDE package and removed the Tk
 4278 send command from the Windows version.  Changed DDE-based send
 4279 code into "dde eval" command.  The DDE package can be loaded
 4280 into tclsh, not just wish.  Windows only. (redman)
 4281 
 4282 4/5/99 (bug fix) Changed safe-tcl so that the encoding command
 4283 is an alias that masks out the "encoding system" subcommand.
 4284 (redman)
 4285 
 4286 4/5/99 (bug fix) Configure patches to improve support for
 4287 OS/390 and BSD/OS 4.*. (stanton)
 4288 
 4289 4/5/99 (bug fix) Fixed crash in the clock command that occurred
 4290 with negative time values in timezones east of GMT. (stanton)
 4291 
 4292 4/6/99 (bug fix) Moved the "array set" C level code into a common
 4293 routine (TclArraySet).  The TclSetupEnv routine now uses this API to
 4294 create an env array w/ no elements.  This fixes the bug caused when
 4295 every environ varaible is removed, and the Tcl env variable is
 4296 synched.  If no environ vars existed, the Tcl env var would never be
 4297 created. (surles)
 4298 
 4299 4/6/99 (bug fix) Made the Env module I18N compliant. (surles)
 4300 
 4301 4/6/99 (bug fix) Changed the FindVariable routine to TclpFindVariable,
 4302 that now does a case insensitive string comparison on Windows, and not
 4303 on UNIX. (surles)
 4304 
 4305 --------------- Released 8.1b3, April 6, 1999 ----------------------
 4306 
 4307 4/9/99 (bug fix)  Fixed notifier deadlock situation when the pipe used
 4308 to talk back notifier thread is filled with data.  Found as a result of the
 4309 focus.test for Tk hanging. (redman)
 4310 
 4311 4/13/99 (bug fix) Fixed bug where socket -async combined with
 4312 fileevent for writing did not work under Windows NT. (redman)
 4313 
 4314 4/13/99 (encoding fix) Restored the double byte definition of GB2312
 4315 and added the EUC-CN encoding.  EUC-CN is a variant of GB2312 that
 4316 shifts the characters into bytes with the high bit set and includes
 4317 ASCII as a subset. (stanton)
 4318 
 4319 4/27/99 (bug fix) Added 'extern "C" {}' block around the stub table
 4320 pointer declaration so the stub library can be used from C++. (stanton)
 4321 
 4322 --------------- Released 8.1 final, April 29, 1999 ----------------------
 4323 
 4324 4/22/99 (bug fix) Changed Windows NT socket implementation to avoid
 4325 creating a communication window.  This avoids the problem where the
 4326 system hangs waiting for tclsh to respond to a system-wide synchronous
 4327 broadcast (e.g. if you change system colors). (redman)
 4328 
 4329 4/22/99 (bug fix) Added call to TclWinInit from TclpInitPlatform when
 4330 building a static library since DllMain will not be invoked.  This
 4331 could break old code that explicitly called TclWinInit, but should be
 4332 simpler in the long run. (stanton)
 4333 *** POTENTIAL INCOMPATIBILITY ***
 4334 
 4335 4/23/99 (bug fix) Added support for the koi8-r Cyrillic
 4336 encoding. [Bug: 1771] (stanton)
 4337 
 4338 4/28/99 (bug fix) Changed internal Tcl_Obj usage to avoid freeing the
 4339 internal representation after the string representation has been
 4340 freed.  This makes it easier to debug extensions. (stanton)
 4341 
 4342 4/30/99 (bug fix) Fixed a memory leak in CommandComplete. (stanton)
 4343 
 4344 5/3/99 (bug fix) Fixed a bug where the Tcl_ObjType was not being set
 4345 in a duplicated Tcl_Obj. [Bug: 1975, 2047] (stanton)
 4346 
 4347 5/3/99 (bug fix) Changed Tcl_ParseCommand to avoid modifying eval'ed
 4348 strings that are already null terminated.  [Bug: 1793] (stanton)
 4349 
 4350 5/3/99 (new feature) Applied Jeff Hobbs's string patch which includes
 4351 the following changes:
 4352     - added new subcommands: equal, repeat, map, is, replace
 4353     - added -length option to "string compare|equal"
 4354     - added -nocase option to "string compare|equal|match"
 4355     - string and list indices can be an integer or end?-integer?.
 4356     - added optional first and last index args to string toupper, et al.
 4357 See the string.n manual entry for more details about the new string
 4358 features.  [Bug: 1845] (stanton)
 4359 
 4360 5/6/99 (new feature) Added Tcl_UtfNcmp and Tcl_UtfNcasecmp to make Utf
 4361 string comparision easier. (stanton)
 4362 
 4363 5/7/99 (bug fix) Improved OS/390 support. [Bug: 1976, 1997] (stanton)
 4364 
 4365 5/12/99 (bug fix) Changed Windows initialization code to avoid using
 4366 GetUserName system call in favor of the env(USERNAME) variable.  This
 4367 provides a significant startup speed improvement. (stanton)
 4368 
 4369 5/12/99 (bug fix) Replaced the per-interpreter regexp cache with a
 4370 per-thread cache.  Changed the Regexp object to take advantage of this
 4371 extra cache.  Added a reference count to the TclRegexp type so regexps
 4372 can be shared by multiple objects.  Removed the per-interp regexp cache
 4373 from the interpreter.  Now regexps can be used with no need for an
 4374 interpreter. This set of changes should provide significant speed
 4375 improvements for many Tcl scripts.  [Bug: 1063] (stanton)
 4376 
 4377 5/14/99 (bug fix) Durining initialization on Unix, Tcl now extracts the
 4378 encoding subfield from the LANG/LC_ALL environment variables in cases
 4379 where the locale is not found in the built-in locale table.  It also
 4380 attempts to initialize the locale subsystem so X11 is happy. [Bug: 1989]
 4381 (stanton)
 4382 
 4383 5/14/99 (bug fix) Applied the patch to fix 100-year and 400-year
 4384 boundaries in leap year code, from Isaac Hollander.  [Bug: 2066] (redman)
 4385 
 4386 5/14/99 (bug fix) Fixed a crash caused by a failure to reset the result
 4387 before evaluating the test expression in an uncompiled for
 4388 statement. (stanton)
 4389 
 4390 5/18/99 (bug fix) Modified initialization code on Windows to avoid
 4391 inherenting closed or invalid channels.  If the standard input is
 4392 anything other than a console, file, serial port, or pipe, then we fall
 4393 back to the standard Tk window console. (stanton)
 4394 
 4395 5/19/99 (bug fix) Added an extern "C" block around the entire tcl.h
 4396 header file to avoid C++ linkage issues. (redman)
 4397 
 4398 5/19/99 (new feature) Applied Jeff Hobb's patch to add
 4399 Tcl_StringCaseMatch to support case insensitive glob style matching and
 4400 Tcl_UniCharIs* character classification functions. (stanton)
 4401 
 4402 5/20/99 (bug fix) Added the directory containing the executuble and the
 4403 ../lib directory relative to that to the auto_path variable. (redman)
 4404 
 4405 --------------- Released 8.1.1, May 25, 1999 ----------------------
 4406 
 4407 5/21/99 (bug fix) Fixed launching command.com on Win95/98, no longer
 4408 hangs. [Bug: 2105] (redman)
 4409 
 4410 5/28/99 (bug fix) Fixed bug where dde calls were being passed an
 4411 invalid dde handle. [Bug: 2124] (stanton)
 4412 
 4413 6/1/99  (bug fix) Small configure.in patches. [Bug: 2121] (stanton)
 4414 
 4415 6/1/99  (bug fix) Applied latest regular expression patches to fix an
 4416 infinite loop bug and add support for testing whether a string could
 4417 match with additional input. [Bug: 2117] (stanton)
 4418 
 4419 6/2/99  (bug fix) Fixed incorrect computation of relative ordering in
 4420 Utf case-insensitive comparison. [Bug: 2135] (stanton)
 4421 
 4422 6/3/99  (bug fix) Fxied bug where string equal/compare -nocase
 4423 reported wrong result on null strings. [Bug: 2138] (stanton)
 4424 
 4425 6/4/99  (new feature) Windows build now uses Cygwin tools plus GNU
 4426 make and autoconf to build static/dynamic and debug/nodebug. (stanton)
 4427 
 4428 6/7/99  (new feature) Optimized string index, length, range, and
 4429 append commands. Added a new Unicode object type. (hershey)
 4430 
 4431 6/8/99  (bug fix) Rolled back Windows socket driver to 8.1.0
 4432 version. (stanton)
 4433 
 4434 6/9/99  (new feature) Added Tcl_RegExpMatchObj and Tcl_RegExpGetInfo
 4435 to public Tcl API, these functions are needed by Expect.  Changed
 4436 tools/genStubs.tcl to always write output in LF mode. (stanton)
 4437 
 4438 6/14/99 (new feature) Merged string and Unicode object types.  Added
 4439 new public Tcl API functions:  Tcl_NewUnicodeObj, Tcl_SetUnicodeObj,
 4440 Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange,
 4441 Tcl_AppendUnicodeToObj. (hershey)
 4442 
 4443 6/16/99 (new feature) Changed to conform to TEA specification, added
 4444 tcl.m4 and aclocal.m4 macro libraries for configure.  (wart)
 4445 
 4446 6/17/99 (new feature) Added new regexp interfaces: -expanded, -line,
 4447 -linestop, and -lineanchor switches.  Renamed Tcl_RegExpMatchObj to
 4448 Tcl_RegExpExecObj and added new Tcl_RegExpMatchObj that is equivalent
 4449 to Tcl_RegExpMatch.  Added public macros for regexp flags.  Added
 4450 REG_BOSONLY flag to allow Expect to iterate through a string and only
 4451 find matches that start at the current position within the
 4452 string. (stanton)
 4453 
 4454 6/21/99 (bug fix) Fixed memory leak in TclpThreadCreate where thread
 4455 attributes were not being released.  [Bug: 2254] (stanton)
 4456 
 4457 6/23/99 (new feature) Updated Unicode character tables to reflect
 4458 Unicode 2.1 data. (stanton)
 4459 
 4460 6/25/99 (new feature) Fixed bugs in non-greedy quantifiers for regular
 4461 expression code. (stanton)
 4462 
 4463 6/25/99 (new feature) Added initial implementation of new Tcl test
 4464 harness package.  Modified test files to use new tcltest package.
 4465 (jenn)
 4466 
 4467 6/26/99 (new feature) Applied patch from Peter Hardie to add poke
 4468 command to dde and changed the dde package version number to
 4469 1.1. (redman)
 4470 
 4471 6/28/99 (bug fix) Applied patch from Peter Hardie to fix problem in
 4472 Tcl_GetIndexFromObj() when the key being passed is the empty string.
 4473 [Bug: 1738] (redman)
 4474 
 4475 6/29/99 (new feature) Added options to tcltest package: -preservecore,
 4476 -limitconstraints, -help, -file, -notfile, and flags.  (jenn)
 4477 
 4478 7/3/99  (new feature) Changed parsing of variable names to allow empty
 4479 array names.  Now "$(foo)" is a variable reference.  Previously you
 4480 had to use something line $::(foo), which is slower.  This change was
 4481 requested by Jean-Luc Fontaine for his STOOOP package. (welch)
 4482 
 4483 7/3/99  (new feature) Added Tcl_SetNotifier (public API) and
 4484 associated hook points in the notifiers to be able to replace the
 4485 notifier calls at runtime. The Xt notifier and test program use this
 4486 hook.  (welch)
 4487 
 4488 7/3/99  (new feature) Added a new variant of the "Trf core patch" from
 4489 Andreas Kupries that adds new C APIs Tcl_StackChannel,
 4490 Tcl_UnstackChannel, and Tcl_GetStackedChannel.  This allows the Trf
 4491 extension to work without applying patches to the Tcl core. (welch)
 4492 
 4493 7/6/99  (new feature) Added -timeout option to http.tcl to handle
 4494 timeouts that occur during connection attempts to hosts that are
 4495 down. (welch)
 4496 
 4497 7/6/99  (bug fix) Applied new implementation of the Windows serial
 4498 port driver from Rolf Schroedter that fixes reading only one byte from
 4499 the port at a time.  Uses polling every 10ms to implement
 4500 fileevents. [Bug: 1980 2217] (redman)
 4501 
 4502 7/8/99  (bug fix) Applied fix for bug in DFA state caching under
 4503 lookahead conditions (regular expressions).  [Bug: 2318] (stanton)
 4504 
 4505 7/8/99  (bug fix) Fixed bug in string range bounds checking
 4506 code. (stanton)
 4507 
 4508 --------------- Released 8.2b1, July 14, 1999 ----------------------
 4509 
 4510 7/16/99 (bug fix) Added Tcl_SetNotifier to stub table. [Bug: 2364]
 4511 Added check for Alpha/Linux to correct the IEEE  floating point flag,
 4512 patch from Don Porter. (redman)
 4513 
 4514 7/20/99 (bug fix) Merged 8.0.5 code to handle tcl_library properly,
 4515 also fixed a bug that caused TCL_LIBRARY to be ignored. (hershey)
 4516 
 4517 7/21/99 (bug fix) Implemented modified socket driver for Windows that
 4518 uses a thread to manage the socket event window.  Code works the same
 4519 on all supported versions of Windows and was based on original 8.1.0
 4520 code.  [Bug: 2178 2256 2259 2329 2323 2355] (redman)
 4521 
 4522 7/21/99 (new feature) Applied patch from Rolf Schroedter to add
 4523 -pollinterval option to fconfigure for Windows serial ports.  Allows
 4524 the maxblocktime to be modified to control how often serial ports are
 4525 checked for fileevents.  Also added documentation for \\.\comX
 4526 notation for opening serial ports on Windows.  (redman)
 4527 
 4528 7/21/99 (bug fix) Changed APIs in stub tables to use "unsigned long"
 4529 instead of the platform-specific "size_t", primarily after SunOS 4
 4530 users could no longer compile. (redman)
 4531 
 4532 7/22/99 (bug fix) Fixed crashing during "array set a(b) {}".
 4533 [Bug: 2427] (redman)
 4534 
 4535 7/22/99 (bug fix) The install-sh script must be given execute
 4536 permissions prior to running.  [Bug: 2413] (redman)
 4537 
 4538 7/22/99 (bug fix) Applied patch from Ulrich Ring to remove ANSI-style
 4539 prototypes in the code.  [Bug: 2391] (redman)
 4540 
 4541 7/22/99 (bug fix) Added #if blocks around #includes of sys/*.h header
 4542 files, to allow an extension author on Windows to use the MetroWerks
 4543 compiler. [Bug: 2385] (redman)
 4544 
 4545 7/22/99 (bug fix) Fixed running the safe.test test suite, one change
 4546 to the Windows Makefile.in to fix paths and another in safe.test to
 4547 check for the tcl_platform(threaded) variable properly. (redman)
 4548 
 4549 7/22/99 (bug fix) Fixed hanging in new Win32 socket driver with
 4550 threads enabled. (redman)
 4551 
 4552 7/26/99 (bug fix) Fixed terminating of helper threads by holding any
 4553 mutexes from the primary thread while waiting for the helper thread to
 4554 terminate.  Fixes dual-CPU WinNT hangs, only one rare sporadic hang
 4555 that still exists with dual-CPU WinNT.  Also fixed test cases so that
 4556 they would not depend as much on timing for dual-CPU WinNT. (redman)
 4557 
 4558 7/27/99 (bug fix) Some test suite cleanup. (jenn)
 4559 
 4560 7/29/99 (bug fix) Applied patch to fix typo in .SH NAME line in
 4561 doc/Encoding.n [Bug: 2451].  Applied patch to avoid linking pack.n to
 4562 pack-old.n [Bug: 2469]. Patches from Don Porter. (redman)
 4563 
 4564 7/29/99 (bug fix) Allow tcl to open CON and NUL, even for redirection
 4565 of std channels.  [Bug: 2393 2392 2209 2458] (redman)
 4566 
 4567 7/30/99 (bug fix) Applied fixed Trf patch from Andreas Kupries.
 4568 [Bug: 2386] (hobbs)
 4569 
 4570 7/30/99 (bug fix) Fixed bug in info complete. [Bug: 2383 2466] (hobbs)
 4571 
 4572 7/30/99 (bug fix) Applied patch to fix threading on Irix 6.5, patch
 4573 provided by James Dennett.  [Bug: 2450] (redman)
 4574 
 4575 7/30/99 (bug fix) Fixed launching of 16bit applications on Win9x from
 4576 wish.  The command line was being primed with tclpip82.dll, but it was
 4577 ignored later.
 4578 
 4579 7/30/99 (bug fix) Added functions to stub table, patch provided by Jan
 4580 Nijtmans. [Bug: 2445] (hobbs)
 4581 
 4582 8/1/99  (bug fix) Changed Windows socket driver to terminate threads
 4583 by sending a message to the window rather than calling
 4584 TerminateThread(), which seems to leak about 4k from the helper
 4585 thread's stack space. (redman)
 4586 
 4587 --------------- Released 8.2b2, August 5, 1999 ----------------------
 4588 
 4589 8/4/99 (bug fix) Applied patches supplied by Henry Spencer to greatly
 4590 enhance performance of certain classes of regular expressions.
 4591 [Bug: 2440 2447] (stanton)
 4592 
 4593 8/5/99 (doc change) Made it clear that tcl_pkgPath was not set for
 4594 Windows. [Bug: 2455] (hobbs)
 4595 
 4596 8/5/99 (bug fix) Fixed reference to bytes that might not be null
 4597 terminated in tclLiteral.c. [Bug: 2496] (hobbs)
 4598 
 4599 8/5/99 (bug fix) Fixed typo in http.tcl. [Bug: 2502] (hobbs)
 4600 
 4601 8/9/99 (bug fix) Fixed test suite to handle larger integers
 4602 (64bit). Patch from Don Porter. (hobbs)
 4603 
 4604 8/9/99 (documentation fix) Clarified Tcl_DecrRefCount docs
 4605 [Bug: 1952]. Clarified array pattern docs [Bug: 1330]. Fixed clock docs
 4606 [Bug: 693]. Fixed formatting errors [Bug: 2188 2189]. Fixed doc error
 4607 in tclvars.n [Bug: 2042]. (hobbs)
 4608 
 4609 8/9/99 (bug fix) Fixed path handling in auto_execok [Bug: 1276] (hobbs)
 4610 
 4611 8/9/99 (internal api change) Removed the TclpMutexLock and TclpMutexUnlock
 4612 APIs and added a new exported api, Tcl_GetAllocMutex. These APIs are all for
 4613 the mutex used in the simple memory allocators.  By making this change
 4614 we are able to substitute different implementations of the thread-related
 4615 APIs without having to recompile the Tcl core. (welch)
 4616 
 4617 8/9/99 (new C API) Tcl_GetChannelNames returns a list of open channel
 4618 names in the interpreter result.  Still no Tcl-level version of this,
 4619 but server-like applications can use this to clean up files without
 4620 deleting interpreters. (welch)
 4621 
 4622 8/9/99 (bug fix) Traces were not firing on "info exists", which used to
 4623 happen in Tcl 7.6 and earlier. An "info exists" now fires a read trace,
 4624 if defined.  This makes it possible to fully implement variables that
 4625 are defined via traces. (welch)
 4626 
 4627 8/10/99 (bug fix) Fixed Brent's changes so that they work on
 4628 Windows. (redman)
 4629 
 4630 --------------- Released 8.2b3, August 11, 1999 ----------------------
 4631 
 4632 8/12/99 (Mac) Rearrange projects in tclMacProjects.sea.hqx so that the
 4633 build directory is separate from the sources. (Jim Ingham)
 4634 
 4635 8/12/99 (bug fix) Fixed bug in Tcl_EvalEx where the termOffset was not
 4636 being updated in cases where the evaluation returned a non TCL_OK
 4637 error code. [Bug: 2535] (stanton)
 4638 
 4639 --------------- Released 8.2.0, August 17, 1999 ----------------------
 4640 
 4641 9/21/99 (config fixes) fixed several AIX configuration issues.  gcc and
 4642 threading may still cause problems on AIX. (hobbs)
 4643 
 4644 9/21/99 (bug fix) fixed expr double-eval problem. [Bug: 732] (hobbs)
 4645 
 4646 9/21/99 (bug fix) fixed static buffer overflow problem. [Bug: 2483] (hobbs)
 4647 
 4648 9/21/99 (bug fix) fixed end-int linsert interpretation. [Bug: 2693] (hobbs)
 4649 
 4650 9/21/99 (bug fix) fixed bug when setting array in non-existent
 4651 namespace. [Bug: 2613] (hobbs)
 4652 
 4653 --- Released 8.2.1, October 04, 1999 --- See ChangeLog for details ---
 4654 
 4655 10/30/99 (feature enhancement) new regexp engine from Henry Spencer
 4656 was patched in - should greatly reduce stack space usage. (spencer)
 4657 
 4658 10/30/99 (bug fix) fixed Purify reported memory leaks in findexecutable
 4659 test command, TclpCreateProcess on Unix, in handling of C environ array,
 4660 and in testthread code.  No more known (reported) mem leaks for Tcl
 4661 built using gcc on Solaris 2.5.1.  Also none reported for Tcl on NT
 4662 (using Purify 6.0). (hobbs)
 4663 
 4664 10/30/99 (bug fix) fixed improper bytecode handling of
 4665 'eval {set array($unknownvar) 5}' (also for incr) (hobbs)
 4666 
 4667 10/30/99 (bug fix) fixed event/io threading problems by making
 4668 triggerPipe non-blocking (nick kisserbeth)
 4669 
 4670 10/30/99 (bug fix) fixed Tcl_AppendStringsToObjVA and Tcl_AppendResultVA
 4671 to only	iterates once over the va_list (avoiding non-portable memcpy).
 4672 (joe english, hobbs)
 4673 
 4674 10/30/99 (bug fix) removed savedChar trick in tclCompile.c that appeared
 4675 to be causing a segv when the literal table was released.
 4676 [Bug: 2459, 2515] (David Whitehouse)
 4677 
 4678 10/30/99 (bug fix) fixed [string index] to return ByteArrayObj
 4679 when indexing into one (test case string-5.16) [Bug: 2871] (hobbs)
 4680 
 4681 10/30/99 (bug fix) fixes for mac UTF filename handling (ingham)
 4682 
 4683 --- Released 8.2.2, November 04, 1999 --- See ChangeLog for details ---
 4684 
 4685 11/19/99 (feature enhancement) bug fixes for http package as well as
 4686 patch required by TLS (SSL) extension that adds http::(un)register
 4687 and -type to http::geturl.  Up'd http pkg version to 2.2.
 4688 
 4689 11/19/99 (bug fix) removed extra decr of numLevels in Tcl_EvalObjEx
 4690 that could cause seg fault (mjansen@wendt.de)
 4691 
 4692 11/19/99 (bug fixes) numerous minor big fixes, including correcting the
 4693 installation of the koi8-r encoding and tcltest1.0 on Windows.
 4694 
 4695 11/30/99 (bug fix) fixes scan where %[..] didn't match anything
 4696 
 4697 11/30/99 (bug fix) fixed setting of isNonBlocking flag in PipeBlockModeProc
 4698 so you can now close a non-blocking channel without waiting.
 4699 
 4700 11/30/99 (bug work-around) prevented the unloading of DLLs for Unix in
 4701 TclFinalizeLoad.  This stops the seg fault on exit that some users would
 4702 see (ie with oratcl) when using DLLs that do nasty things like register
 4703 atexit handlers.
 4704 
 4705 12/07/99 (bug fix) fixes for 'expr + {[incr]}' and 'expr + {[error]}'
 4706 cases (different causes).
 4707 
 4708 --- Released 8.2.3, December 16, 1999 --- See ChangeLog for details ---
 4709 
 4710 1999-09-14 (feature enhancement) added -start switch to regexp and regsub.
 4711 
 4712 1999-09-15 (feature enhancement) add 'array unset' command.
 4713 
 4714 1999-09-15 (feature enhancement) rewrote runtime libraries to use new
 4715 string functions
 4716 
 4717 1999-08-18 (feature enhancement) added 'file channels' command, along with
 4718 Tcl_GetChannelNames(Ex) public C APIs.
 4719 
 4720 1999-10-19 (feature enhancement) enhanced tcltest package
 4721 
 4722 1999-09-16 (feature enhancement) added -milliseconds switch to 'clock clicks'
 4723 
 4724 1999-10-28 (feature enhancement) added support for inline 'scan'
 4725 
 4726 1999-10-28 (feature enhancement) added support for touch functionality by
 4727 extendeding 'file atime' and 'file mtime' to take an optional time argument
 4728 
 4729 1999-11-24 (feature enhancement) added 'fconfigure $sock -lasterror'
 4730 command to Windows to query the last error received on a serial socket.
 4731 
 4732 1999-11-30 (bug fix) fixed handling of %Z on NT for timezones that don't
 4733 have DST
 4734 
 4735 1999-12-03 (feature enhancement) improved error message in bad octal cases
 4736 and improper use of comments. (hobbs)
 4737 
 4738 1999-12-07 (bug fix) fixed Tcl_ScanCountedElement to not step
 4739 beyond the end of the counted string
 4740 
 4741 1999-12-09 (feature enhancement) removed all references to 16 bit
 4742 compatibility code for Windows (hobbs)
 4743 
 4744 1999-12-10 (bug fix) removed check for vfork - Tcl now uses only fork in
 4745 exec. (hobbs)
 4746 
 4747 1999-12-10 (optimization) changed Tcl_ConcatObj to return a list
 4748 object when it receives all pure list objects as input (used by 'concat'),
 4749 added optimizations in Tcl_EvalObjEx for pure list case, and optimized
 4750 INST_TRY_CVT_TO_NUMERIC in TclExecuteByteCode for boolean objects.
 4751 (oakley, hobbs)
 4752 
 4753 1999-12-12 (feature enhancement) enhanced glob command with -type, -path,
 4754 -directory and -join switches. (darley, hobbs)
 4755 
 4756 1999-12-21 (bug fix) changed CreateThread to _beginthreadex and
 4757 ExitThread to _endthreadex to prevent 4K mem leak (gravereaux)
 4758 
 4759 1999-12-21 (bug fix) fixed applescript for I18N
 4760 
 4761 1999-12-21 (feature enhancement) added -unique option to lsort (hobbs)
 4762 
 4763 1999-12-21 (bug fix) changed thread ids to longs (for 64bit systems)
 4764 
 4765 --- Released 8.3b1, December 22, 1999 --- See ChangeLog for details ---
 4766 
 4767 2000-01-10 (feature enhancement) clock scan now supports the common
 4768 ISO 8601 date/time formats.  See docs for details. (melski)
 4769 
 4770 2000-01-10 (bug fix) prevented \ooo substitution from accepting
 4771 non-octal digits [Bug: 3975] (hobbs)
 4772 
 4773 2000-01-11 (bug fix) fixed improper handling of DST by clock when
 4774 using relative times (like "1 month" or "tomorrow"). (melski)
 4775 
 4776 2000-01-12 (bug fix) improved build support for Tru64 v5, NetBSD
 4777 and Reliant Unix (hobbs)
 4778 
 4779 2000-01-12 (bug fix) made imported commands also import their
 4780 compile procedure (duffin)
 4781 
 4782 2000-01-12 (bug fix) fixed 'info procs ::namesp::*' behavior to return
 4783 procs in a namespace (dejong)
 4784 
 4785 2000-01-12 (feature enhancement) added support for setting permissions
 4786 symbolicly (like chmod) in [file attributes $file -permissions ...] (schoebel)
 4787 
 4788 2000-01-13 (bug fix) fixed lsort -dictionary problem when sorting
 4789 characters between 'Z' and 'a' (flawed upper/lower comparison logic) (melski)
 4790 
 4791 --- Released 8.3b2, January 13, 2000 --- See ChangeLog for details ---
 4792 
 4793 2000-01-14 (feature enhancement) clock format %Q added, clock scan updated
 4794 
 4795 2000-01-20 (bug fix) corrected complex array elem compiling (Spjuth)
 4796 
 4797 2000-01-20 (bug fix) made [info body] always return a string type arg,
 4798 to prevent possible misuse of bytecodes in the wrong context (hobbs)
 4799 
 4800 2000-01-20 (bug fixes) several fixes to variable handling to prevent
 4801 possible crashes, and further definition of correct behavior (melski)
 4802 
 4803 2000-01-25 (bug fixes) improved QNX, Ultrix and OSF1 (Tru64) config and
 4804 compatibility (edge, furukawa)
 4805 
 4806 2000-01-25 (bug fix) fixed mem leak when calling lsort with a bad -command
 4807 argument (hobbs)
 4808 
 4809 2000-01-27 (feature enhancement) package mechanism overhaul: changed
 4810 behavior of pkg_mkIndex to do -direct by default, added -lazy option.
 4811 Fixed pkg_mkIndex to handle odd proc names and auto_mkIndex to use platform
 4812 independent file paths.  Other fixes for odd package quirks.  Added
 4813 ::pkg namespace and ::pkg::create helper function. (melski)
 4814 
 4815 2000-02-01 (bug fix) fixed problem where http POST would send one extra
 4816 newline (vasiljevic)
 4817 
 4818 2000-02-02 (feature enhancement) added docs for new regexp -inline and
 4819 -all switches. (hobbs)
 4820 
 4821 2000-02-08 (bug fix) corrected handling of "next monthname" in clock scan
 4822 (melski)
 4823 
 4824 2000-02-09 (bug fix) restored Mac source to build readiness and prevented
 4825 mac panic from an error when closing an async socket (steffen, ingham)
 4826 
 4827 2000-02-10 (feature enhancement) improved error reporting for failed
 4828 loads on Windows (dejong, hobbs)
 4829 
 4830 --- Released 8.3.0, February 10, 2000 --- See ChangeLog for details ---
 4831 
 4832 2000-03 (bug fixes, feature enhancement) overhaul of http package for
 4833 proper handling of async callbacks (new options), version is now at 2.3
 4834 (tamhankar, welch)
 4835 
 4836 2000-03 (performance enhancement) speedup in Windows filename handling (newman)
 4837 and ==/!= empty string in exprs. (hobbs)
 4838 
 4839 2000-03-27 (bug fix) added uniq'ing test to namespace export list to
 4840 prevent unnecessary mem growth (hobbs)
 4841 
 4842 2000-03-29 (bug fix) fixed mem leak when repeatedly sourcing the same
 4843 bytecompiled (tbc) code repeatedly across different interpreters (hobbs)
 4844 
 4845 2000-03-29 (config enhancement) improved build support for gcc/mingw on
 4846 Windows (nijtmans, hobbs) and added RPM target (melski)
 4847 
 4848 2000-03-31 (bug fix) corrected data encoding problem when using
 4849 "exec << $data" construct (melski)
 4850 
 4851 2000-04 (feature enhancement) overhaul of threading mechanism to better
 4852 support tcl level thread command (new APIs Tcl_ConditionFinalize,
 4853 Tcl_MutexFinalize, Tcl_CreateThread, etc, all docs in Thread.3).
 4854 (kupries, graveraux)
 4855 This enables the tcl level thread extension. (welch)
 4856 
 4857 2000-04-10 (bug fix) fixed infinite loop case in regexp -all (melski)
 4858 
 4859 2000-04-13 (config enhancement) added support for --enable-64bit-vis
 4860 Sparc target. (hobbs)
 4861 
 4862 2000-04-18 (bug fix) moved tclLibraryPath to thread-local storage to fix
 4863 possible race condition on MP machines (hobbs)
 4864 
 4865 2000-04-18 (config enhancement) added MacOS X build target and
 4866 tclLoadDyld.c dl type. (sanchez)
 4867 
 4868 2000-04-23 (bug fix) several Mac socket fixes (ingham)
 4869 
 4870 2000-04-24 (bug fix) fixed hang in threaded Unix case when backgrounded
 4871 exec process was running (dejong)
 4872 
 4873 --- Released 8.3.1, April 26, 2000 --- See ChangeLog for details ---
 4874 
 4875 2000-04-26 (doc fix) updated/added documentation for many API's and
 4876 commands (melski)
 4877 
 4878 2000-05-02 (feature enhancement) added support for joinable threads;
 4879 extended API's for channels to allow channels to move between threads
 4880 (kupries)
 4881 
 4882 2000-05-02 (feature enhancement) changed error return for procedures
 4883 with incorrect args to be like the Tcl_WrongNumArgs API, with a "wrong
 4884 # args: ..." message printed, with an args list (hobbs)
 4885 
 4886 2000-05-08 (feature enhancement) added [array statistics] command
 4887 
 4888 2000-05-08 (performance enhancement) rewrote Tcl_StringCaseMatch
 4889 algorithm for better performance; this affects the [string match]
 4890 command; added "eq" and "ne" operands to expr, for testing
 4891 string equality and inequality (hobbs)
 4892 
 4893 2000-05-09 (feature enhancement) extended [lsearch] to support sorted
 4894 list searches and typed list searches (melski)
 4895 
 4896 2000-05-10 (feature enhancement) added [namespace exists] command
 4897 (darley)
 4898 
 4899 2000-05-18 (build enhancement) added support for mingw compile env and
 4900 cross-compiling (dejong)
 4901 
 4902 2000-05-18 (bug fix) corrected clock grammar to properly handle the
 4903 "ago" keyword when it follows multiple relative unit specifiers
 4904 (melski)
 4905 
 4906 2000-05-22 (compile fix) type cast cleanups (dejong)
 4907 
 4908 2000-05-23 (performance enhancement) added byte-compiled
 4909 implementation of [return] command and [string] command (melski)
 4910 
 4911 2000-05-26 (performance enhancement) extended byte-compiled [string]
 4912 command with support for [string compare/index/match] (hobbs)
 4913 
 4914 2000-05-27 (feature enhancement) added ability to set [info script]
 4915 return value ([info script ?newFileName?]) (welch)
 4916 
 4917 2000-05-31 (feature enhancement) added support for regexp and exact
 4918 pattern matching for [array names] (gazetta)
 4919 
 4920 2000-05-31 (feature enhancement) added -nocomplain and -- flags to
 4921 [unset] to allow for silent unset operation (hobbs)
 4922 
 4923 --- Released 8.4a1, June 6, 2000 --- See ChangeLog for details ---
 4924 
 4925 2000-05-29 (bug fix) corrected resource cleanup in http error cases.
 4926 Improved handling of error cases in http. (tamhankar)
 4927 
 4928 2000-07 (feature rewrite) complete rewrite of the Tcl IO channel subsystem
 4929 to correct problems (hangs, core dumps) with the initial stacked channel
 4930 implementation.  The new system has many more tests for robustness and
 4931 scalability.  There are new C APIs (see Tcl_CreateChannel), but only
 4932 stacked channel drivers are affected (ie: TLS, Trf, iogt).  The iogt
 4933 extension has been added to the core test code to test the system.
 4934 (hobbs, kupries)
 4935 	**** POTENTIAL INCOMPATABILITY ****
 4936 
 4937 2000-07 (build improvements) cleanup of the makefiles and configure scripts
 4938 to correct support for building under gcc for Windows. (dejong)
 4939 
 4940 2000-08-07 (bug fix) corrected sizeof error in Tcl_GetIndexFromObjStruct.
 4941 (perkins)
 4942 
 4943 2000-08-07 (bug fix) correct off-by-one error in HistIndex, which was
 4944 causing [history redo] to start its search at the wrong event index. (melski)
 4945 
 4946 2000-08-07 (bug fix) corrected setlocale calls for XIM support and locale
 4947 issues in startup. (takahashi)
 4948 
 4949 2000-08-07 (bug fix) correct code to handle locale specific return values
 4950 from strftime, if any. (wagner)
 4951 
 4952 2000-08-07 (bug fix) tweaked grammar to properly handle the "ago" keyword
 4953 when it follows multiple relative unit specifiers, as in
 4954 "2 days 2 hours ago". (melski)
 4955 
 4956 2000-08-07 (doc fixes) numerous doc fixes to correct SEE ALSO and NAME
 4957 sections. (english)
 4958 
 4959 2000-08-07 (bug fix) new man pages memory.n, TCL_MEM_DEBUG.3, Init.3 and
 4960 DumpActiveMemory.3. (melski)
 4961 
 4962 --- Released 8.3.2, August 9, 2000 --- See ChangeLog for details ---
 4963 
 4964 2000-06 thru 2000-11 (build improvements) Added support for mingw (gcc on
 4965 Windows), AIX-5 and Win64 builds (dejong, hobbs)
 4966 
 4967 2000-06-23 (feature enhancement) ability to use Tcl_Obj *s as hash keys (duffin)
 4968 
 4969 2000-06-29 (new features) added [mcmax] and [mcmset] and extended [unknown] in
 4970 msgcat package (duperval, krone, nelson)
 4971 => msgcat 1.1
 4972 
 4973 2000-08 thru 2000-09 added tclPlatDecls.h to default install (melski, hobbs)
 4974 
 4975 2000-08-24 (new feature) Enhanced trace syntax to add:
 4976 	trace {add|remove|list} {variable|command} name ops command
 4977 (darley, melski)
 4978 
 4979 2000-09-06 (cross-platform feature) Set ^Z (\32) as default EOF char. (hobbs)
 4980 
 4981 2000-09-07 partial fix for bug 2460 to prevent exec mem leak on Windows for the
 4982 common case (gravereaux)
 4983 
 4984 2000-09-14 Improved string allocation growth for large strings (hintermayer,
 4985 melski)
 4986 
 4987 2000-09-14 New non-panic'ing mem allocation functions Tcl_AttemptAlloc,
 4988 Tcl_AttemptRealloc, Tcl_AttemptSetObjLength (melski)
 4989 
 4990 2000-09-20 (new features) completely new, enhanced syntax in tcltest package.
 4991 Backwards compatable with tcltest v1. (hom)
 4992 => tcltest 2.0
 4993 
 4994 2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
 4995 didn't set nonBlocking correctly when resetting the flags for the write
 4996 side (mem leak) Correct mem leak in channels when statePtr was released
 4997 (hobbs)
 4998 
 4999 2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
 5000 
 5001 2000-10-06 (bug fix) corrected [file channels] to only return channels in
 5002 the current interpreter (hobbs)
 5003 
 5004 2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
 5005 speed up command significantly in base cases (hobbs)
 5006 
 5007 2000-10-27 Fixed mem leak in Tcl_CreateChannel. Re-purified core via test
 5008 suites.  (hobbs)
 5009 
 5010 2000-10-30 (new feature) add "ja_JP.eucJP" map to "euc-jp" encoding (takahashi)
 5011 
 5012 2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
 5013 non-existent array element (hobbs)
 5014 
 5015 2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
 5016 environment (gravereaux)
 5017 
 5018 2000-11-03 (new feature) Tcl_SetMainLoop enables defining an event loop for
 5019 tclsh.  This enables Tk as a truly loadable package. (hobbs)
 5020 
 5021 --- Released 8.4a2, November 3, 2000 --- See ChangeLog for details ---
 5022 
 5023 2000-09-27 (bug fix) fixed a bug introduced by a partial fix in 8.3.2 that
 5024 didn't set nonBlocking correctly when resetting the flags for the write
 5025 side (mem leak) Correct mem leak in channels when statePtr was released
 5026 (hobbs)
 5027 
 5028 2000-09-29 (bug fix) corrected reporting of space parity on Windows (Eason)
 5029 
 5030 2000-10-06 (bug fix) corrected [file channels] to only return channels in
 5031 the current interpreter (hobbs)
 5032 
 5033 2000-10-20 (performance enhancement) call stat only when necessary in 'glob' to
 5034 speed up command significantly in base cases (hobbs)
 5035 
 5036 2000-11-01 (mem leak) Corrected excessive mem use of info exists on a
 5037 non-existent array element (hobbs)
 5038 
 5039 2000-11-02 (bug fix) Corrected sharing of tclLibraryPath in threaded
 5040 environment (gravereaux)
 5041 
 5042 2000-11-23 (mem leak) fixed potential memory leak in error case of lsort
 5043 (fellows)
 5044 
 5045 2000-12-09 (feature enhancement) changed %o and %x to use strtoul instead
 5046 of strtol to correctly preserve scan<>format conversion of large integers
 5047 (hobbs)
 5048 Fixed handling of {!<boolean>} in expressions (hobbs, fellows)
 5049 
 5050 2000-12-14 (feature enhancement) improved (s)rand for 64-bit platforms
 5051 (porter)
 5052 
 5053 2001-01-04 (bug fix) corrected parsing of $tcl_libPath at startup on
 5054 Windows (porter)
 5055 
 5056 2001-01-30 (bug fix) Fixed possible hangs in fcopy. (porter)
 5057 
 5058 2001-02-15 (performance enhancement) improved efficiency of [string split]
 5059 (fellows)
 5060 
 5061 2001-03-13 (bug fix) Correctly possible memory corruption in string map {}
 5062 $str (fellows)
 5063 
 5064 2001-03-29 (bug fix) prevent potential race condition and security leak in
 5065 tmp filename creation on Unix. (max)
 5066 Fixed handling of timeout for threads (corrects excessive CPU usage issue
 5067 for Tk on Unix in threaded Tcl environment). (ruppert)
 5068 
 5069 2001-03-30 (bug fix) corrected Windows memory error on exit (wu)
 5070 Fixed race condition in readability of socket on Windows.
 5071 
 5072 2001-04-03 (doc fixes) numerous doc corrections and clarifications.
 5073 Update of READMEs.
 5074 
 5075 2001-04-04 (build improvements) redid Mac build structure (steffen)
 5076 Corrected IRIX-5* configure (english).  Added support for AIX-5 (hobbs).
 5077 Added support for Win64 (hobbs).
 5078 
 5079 --- Released 8.3.3, April 6, 2001 --- See ChangeLog for details ---
 5080 
 5081 2000-11-23 (new feature)[TIP 7] higher resolution timer on Windows (kenny)
 5082 
 5083 2001-01-18 (new feature) Tcl_InitHashTableEx renamed to Tcl_InitCustomHashTable
 5084 (kupries)
 5085 
 5086 2001-03-30 (new feature)[TIP 10] support for thread-aware/hot channels (kupries)
 5087 
 5088 2001-04-06 (new feature)[219280] auto-loading hidden in ::errorInfo (porter)
 5089 
 5090 2001-04-07 (bug fix)[406709] corrected panic when extra items left on the
 5091 byte compiler execution stack (sofer)
 5092 
 5093 2001-04-09 (bug fix)[219136,232558] improved use of thread-safe functions in
 5094 unix time commands (kenny)
 5095 
 5096 2001-04-24 (new feature)[TIP 27] started CONST-ification of the Tcl APIs (kenny)
 5097 
 5098 2001-05-03 (new feature) [auto_import] now matches patterns like
 5099 [namespace import], not like [string match] (porter)
 5100         **** POTENTIAL INCOMPATABILITY ****
 5101 
 5102 2001-05-07 (new feature)[416643] distinct srand() seed per interp (sofer)
 5103 
 5104 2001-05-15 (new feature) new Tcl_GetUnicodeFromObj API (hobbs)
 5105 
 5106 2001-05-16 (performance enhancement) byte-compiled versions of [lappend],
 5107 [append] simple cases (hobbs)
 5108 
 5109 2001-05-23 (new feature) added ISO-8859-15 and koi8-u encodings, updated other
 5110 encoding tables based on http://www.unicode.org/Public/MAPPINGS/ (kuhn)
 5111 
 5112 2001-05-27 (new feature) updated to Unicode 3.1.0 data set (still using 16
 5113 bits for Tcl_UniChar though) (hobbs)
 5114 
 5115 2001-05-30 (new feature)[TIP 15] Tcl_GetMathFuncInfo, Tcl_ListMathFuncs,
 5116 Tcl_InfoObjCmd, InfoFunctionsCmd APIs (fellows)
 5117 
 5118 2001-06-08 (bug fix,feature enhancement)[219170,414936] all Tcl_Panic
 5119 definitions brought into agreement (porter)
 5120 
 5121 2001-06-12 (bug fix)[219232] regexp returned non-matching sub-pairs to have
 5122 index pair {-1 -1} (fellows)
 5123 
 5124 2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
 5125 characters.  (hobbs, riefenstahl)
 5126 
 5127 2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
 5128 
 5129 2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
 5130 (hobbs, barras)
 5131 
 5132 2001-07-12 (new feature)[TIP 36] Tcl_SubstObj API (fellows)
 5133 
 5134 2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
 5135 (hobbs, jsmith)
 5136 
 5137 2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
 5138 of a channel is changed after channel use has already begun (kupries, porter)
 5139 
 5140 2001-07-31 (new feature)[TIP 17] TclFS* APIs provide new virtual file
 5141 system.  This includes the addition of 'file normalize', 'file system',
 5142 'file separator' and 'glob -tails' (darley)
 5143 
 5144 2001-08-06 (bug fix) removed use of tmpnam in TclpCreateTempFile on Unix (lim)
 5145 
 5146  * improved build support for IRIX, GNU HURD, Mac OS 9 and OS X
 5147 
 5148  * configure scripts revamped for better support of cygwin and gcc on
 5149    Windows (mdejong)
 5150 
 5151  * corrected several minor errors noted by Purify (hobbs)
 5152 
 5153 --- Released 8.4a3, August 6, 2001 --- See ChangeLog for details ---
 5154 
 5155 2001-06-27 (bug fix)[217987] corrected backslash substitution of non-ASCII
 5156 characters.  (hobbs, riefenstahl)
 5157 
 5158 2001-06-28 (bug fix)[231259] failure to re-compile after cmd shadowing (sofer)
 5159 
 5160 2001-07-02 (bug fix)[227512] corrected [concat] treatment of UTF-8 strings
 5161 (hobbs, barras)
 5162 
 5163 2001-07-16 (bug fix) corrected thread-enabled pipe closing on Windows
 5164 (hobbs, jsmith)
 5165 
 5166 2001-07-18 (bug fix)[427196] corrected memory overwrite error when buffer size
 5167 of a channel is changed after channel use has already begun (kupries, porter)
 5168 
 5169 2001-08-06 (bug fix)[442665] corrected object reference counting in [gets]
 5170 (jikamens)
 5171 
 5172 2001-08-06 (new feature) added GNU (HURD) configuration target. (brinkmann)
 5173 
 5174 2001-08-07 (bug fix)[406709] corrected panic when extra items left on the
 5175 byte compiler execution stack (see test foreach-5.5) (sofer, tallneil, jstrot)
 5176 
 5177 2001-08-08 (new features) updated packages msgcat 1.1.1, opt 0.4.3,
 5178 tcltest 1.0.1, dependencies checked (porter)
 5179 
 5180 2001-08-20 (new feature)[452217] http 2.3.2: include port number in Host: header
 5181 to comply with HTTP/1.1 spec (RFC 2068)  (hobbs, tils)
 5182 
 5183 2001-08-23 (new feature) added QNX-6 build support (loverso)
 5184 
 5185 2001-08-23 (bug fix) corrected handling of spaces in path name passed to
 5186 [exec] on Windows (kenpoole)
 5187 
 5188 2001-08-24 (bug fix) corrected [package forget] stopping on non-existent
 5189 package (porter)
 5190 
 5191 2001-08-24 (bug fix) corrected construction of script library search path
 5192 relative to executable (porter)
 5193 
 5194 2001-08-24 (bug fix) [auto_import] now matches patterns like
 5195 [namespace import], not like [string match] (porter)
 5196         **** POTENTIAL INCOMPATABILITY ****
 5197 
 5198 2001-08-27 (new feature) added Tcl_SetMainLoop() to enable loading Tk as a
 5199 true package (hobbs)
 5200 
 5201 2001-08-30 (bug fix) build support for Crays (andreasen)
 5202 
 5203 2001-09-01 (bug fix) rewrite of Tcl_Async* APIs to better manage thread
 5204 cleanup  (gravereaux)
 5205 
 5206 2001-09-06 (new feature) http 2.4: honor the Content-encoding and charset
 5207 parameters; add -binary switch for forcing the issue (hobbs, saoukhi, orwell)
 5208 => http 2.4
 5209 
 5210 2001-09-06 (performance enhancement) rewrite of file I/O flush management on
 5211 Windows.  Approximately 100x speedup for some operations. (kupries, traum)
 5212 
 5213 2001-09-10 (bug fix) corrected finalization error in TclInExit (darley)
 5214 
 5215 2001-09-10 (bug fix) protect against alias loops (hobbs)
 5216 
 5217 2001-09-12 (bug fix) added missing #include in tclLoadShl.c (techentin)
 5218 
 5219 2001-09-12 (bug fix) script library path construction on Windows no longer
 5220 uses registry, nor adds the current working directory to the path (porter)
 5221 
 5222 2001-09-12 (bug fix) correct bugs in compatibility strtod() (porter)
 5223 
 5224 2001-09-13 (bug fix) Tcl_UtfPrev now returns the proper location when the
 5225 middle of a UTF-8 byte is passed in (hobbs)
 5226 
 5227 2001-09-19 (bug fix) [format] and [scan] corrected for 64-bit machines (rmax)
 5228 
 5229 2001-09-19 (new feature) --enable-64-bit support for HP-11. (hobbs)
 5230 
 5231 2001-09-19 (new feature) native memory allocator now default on Windows
 5232 (hobbs)
 5233 
 5234 2001-09-20 (new feature) WIN64 support and extra processor definitions
 5235 (hobbs, mstacy)
 5236 
 5237 2001-09-26 (bug fix) corrected potential deadlock in channels that do not
 5238 provide a BlockModeProc (kupries, kogorman)
 5239 
 5240 2001-10-03  (new feature) WIN64 build support (hobbs)
 5241 
 5242 2001-10-03 (bug fix) correction in thread finalization (rbrunner)
 5243 
 5244 2001-10-04 (new feature) updated encodings with latest mappings from
 5245 www.unicode.org (hobbs)
 5246 
 5247 2001-10-11 (bug fix) corrected cleanup of self-referential bytecodes at
 5248 interpreter deletion (sofer, rbrunner)
 5249 
 5250 2001-10-16 (new feature) config support for MacOSX / Darwin (steffen)
 5251 
 5252 2001-10-16 (new feature, Mac) change in binary extension format from MachO
 5253 bundles to standard .dylib dynamic libraries like on other unices.
 5254         *** POTENTIAL INCOMPATIBILITY ***
 5255 
 5256 2001-10-18 (bug fix) corrected off-by-one-day error in clock scan with
 5257 relative months and years during swing hours. (lavana)
 5258 
 5259 --- Released 8.3.4, October 19, 2001 --- See ChangeLog for details ---
 5260 
 5261 2001-08-21 (bug fix)[219184] overagressive compilation of [catch] (sofer)
 5262 
 5263 2001-08-22 (new feature)[227482] [dde request -binary] (hobbs)
 5264 => dde 1.2
 5265 
 5266 2001-08-30 (performance enhancement)[456668] fully qualified command names use
 5267 cached Command for all namespaces, avoiding repeated lookups (sofer)
 5268 
 5269 2001-08-31 (performance enhancement) bytecompiled [list] (hobbs)
 5270 
 5271 2001-09-02 (bug fix)[403553] Add -Zl to VC++ compile line for tclStubLib to
 5272 avoid any specific C-runtime library dependence. (gravereaux)
 5273 
 5274 2001-09-05 (new feature) restored support for Borland compiler (gravereaux)
 5275 
 5276 2001-09-05 (new feature)[TIP 49] Tcl_OutputBuffered API (schroedter, fellows)
 5277 
 5278 2001-09-07 (new feature) restored VC++ 5.0 compatibility (gravereaux)
 5279 
 5280 2001-09-10 (performance enhancement)[TIP 53,451441] [proc foo args {}] now
 5281 compiles to 0 bytecodes (sofer)
 5282 
 5283 2001-09-13 (new feature)[TIP 56] Tcl_EvalTokensStandard API (sofer)
 5284 
 5285 2001-09-13 (new feature) Old ChangeLog entries => ChangeLog.1999 (hobbs)
 5286 
 5287 2001-09-17 (new feature) compiling with TCL_COMPILE_DEBUG now required to
 5288 enable all compile and execution tracing (sofer)
 5289         *** POTENTIAL INCOMPATIBILITY ***
 5290 
 5291 2001-09-19 (bug fix)[411825] made TclNeedSpace UTF-8 aware (fellows)
 5292 
 5293 2001-09-19 (bug fix)[219166] overagressive compilation of "quoted" bodies of
 5294 [for], [foreach], [if], and [while] (sofer)
 5295 
 5296 2001-09-19 (performance enhancement) bytecompiled [string match] (hobbs)
 5297 
 5298 2001-10-15 (new feature)[TIP 35] serial channel configuration: Win (schroedter)
 5299 
 5300 2001-11-06 (bug fix)[478856] loss of fileevents due to short reads (kupries)
 5301 
 5302 2001-11-06 (new feature) revitalized makefile.vc (gravereaux)
 5303 
 5304 2001-11-07 (new feature) Cygwin gcc support dropped.  Use mingw (dejong)
 5305         *** POTENTIAL INCOMPATIBILITY ***
 5306 
 5307 2001-11-07 (new feature) Support --include-dir= and --libdir= options to
 5308 configure.  Store in tclConfig.sh as TCL_INCLUDE_SPEC and TCL_LIB_SPEC.
 5309 (dejong)
 5310         *** POTENTIAL INCOMPATIBILITY ***
 5311 
 5312 2001-11-08 (new feature) Enable --enable-threads on FreeBSD (dejong)
 5313 
 5314 2001-11-08 (new feature) New make target 'make gdb' (dejong)
 5315 
 5316 2001-11-09 (bug fix)[480176] [global] mishandled varnames matching :* (porter)
 5317 
 5318 2001-11-12 (new feature)[TIP 22,33,45] new command [lset],
 5319 [lindex] extended to accept multiple indices. (kenny, hobbs)
 5320 
 5321 2001-11-16 (new feature) new configure option --enable-langinfo=no.
 5322 By default, nl_langinfo() is used on Unix to determine system encoding.
 5323 Tcl's built-in system is used only if that fails, or configured with
 5324 --enable-langinfo=no. (hobbs, wagner)
 5325 
 5326 2001-11-19 (new feature)[TIP 62] A Tcl_VarTraceProc can now return Tcl_Obj *
 5327 or a dynamic string as well as a static string to indicate an error (fellows)
 5328 
 5329 2001-11-19 (new feature)[TIP 73] Tcl_GetTime API (kenny)
 5330 
 5331 2001-11-19 (bug fix)[478847] overflows in [time] of >2**31 microseconds (kenny)
 5332 
 5333 2001-11-29 (performance enhancement) caching scheme added to [binary scan]
 5334 (fellows)
 5335 
 5336 2001-12-05 (new feature) new algorithm for [array get] adds safety when read
 5337 traces modify the array. (sofer)
 5338         *** POTENTIAL INCOMPATIBILITY ***
 5339 
 5340 2001-12-10 (bug fix)[490514] doc fixes (porter,english)
 5341 
 5342 2001-12-18 (new feature) removed unix/dltest/configure; unix/configure does
 5343 all (dejong)
 5344 
 5345 2001-12-19 (new feature) New make target 'make shell' (dejong)
 5346 
 5347 2001-12-21 (new feature) MaxOSX / Darwin support (steffen)
 5348 
 5349 2001-12-28 (new feature) new command [memory onexit] replaces [checkmem] when
 5350 compiled with TCL_MEM_DEBUG.  Added documentation. (porter)
 5351         *** POTENTIAL INCOMPATIBILITY ***
 5352 
 5353 2001-12-28 (bug fix) proper case in [auto_execok] use of $env(COMPSPEC) (hobbs)
 5354 
 5355 2002-01-05 (feature rewrite) Tcl_Main() rewritten and documentation improved.
 5356 Interactive operation and event loop operation (via Tcl_SetMainLoop) now
 5357 interleave cleanly.  Also more robust against strange happenings. (porter)
 5358 
 5359 2002-01-17 (bug fix)[504642] Tcl_Obj refCounts in [gets] (griffen,kupries)
 5360 
 5361 2002-01-21 (bug fix)[506297] infinite loop writing in iso2022-jap encoding
 5362 (forssen,kupries)
 5363 
 5364 2002-01-24 (HTTP server bug workaround)[504508] leave the default port out
 5365 of the Host: header value
 5366 => http 2.4.1 (hobbs)
 5367 
 5368 2002-01-25 (new feature)[496733] socket options -eofchar and -translation
 5369 return read-only values (dejong)
 5370 
 5371 2002-01-28 (new feature) Old ChangeLog entries => ChangeLog.20900 (hobbs)
 5372 
 5373 2002-01-28 (performance enhancement) bytecompiled [regexp] for trivial cases
 5374 that amount to string matching.  Also -nocase and --. (hobbs)
 5375 
 5376 2002-02-05 (bug fix) [http::error] called when [::error] intended
 5377 => http 2.4.2 (porter)
 5378 
 5379 2002-02-05 (bug fix)[465765] avoid zero-byte writes to STREAMs
 5380 (talcott,kupries)
 5381 
 5382 2002-02-06 (performance enhancement) [regsub] special cases that map to
 5383 [string map] detected. (hobbs)
 5384 
 5385 2002-02-06 (bug fix)[495213] [scan] accept 0x as prefix of base 16 value
 5386 (hobbs)
 5387 
 5388 2002-02-10 (new feature)[TIP 32,79] Tcl_CreateObjTrace API (kenny)
 5389 
 5390 2002-02-12 (new feature) partial support for DJGPP Tcl on DOS (gravereaux)
 5391 
 5392 2002-02-14 (mem leak) Fixed leaking an empty Tcl_Obj when [gets $chan]
 5393 errored out. (kupries, sofer)
 5394 
 5395 2002-02-15 (new feature)[TIP 72] support for 64-bit integer values on
 5396 32-bit platforms and ability to work with >2GiB files.  Extends many
 5397 commands.  See ChangeLog and TIP for details.
 5398 	*** POTENTIAL INCOMPATIBILITY ***
 5399 
 5400 2002-02-22 (bug fix)[476537] Fix panic when loading shared library without
 5401 proper use of stubs on platform without backlinking (porter)
 5402 
 5403 2002-02-22 (new feature)  64-bit support for xlc compiler on AIX-4 (hobbs)
 5404 
 5405 2002-02-22 (new feature)[521560] Removed limits on filename length and
 5406 format [source]able through the Safe Base (hobbs)
 5407 
 5408 2002-02-22 (performance enhancement) optimized bytecodes for [if], [for],
 5409 [while] and constant conditions (sofer)
 5410 
 5411 2002-02-22 (new feature)[TIP 76] [regsub] can now return result (fellows)
 5412 
 5413 2002-02-25 (bug fix)[495207] buffer overrun when closing ] left out of
 5414 argument to [subst] (sofer, english)
 5415 
 5416 2002-02-25 (bug fix)[514392] [load] updated for Mac OS X 10.1 (steffen)
 5417 
 5418 2002-02-26 (bug fix) [info hostname] choked on names >31 characters (hobbs)
 5419 
 5420 2002-02-26 (new feature)[TIP 35] serial channel configuration: Unix
 5421 (schroedter, hobbs)
 5422 
 5423 2002-02-25 (bug fix)[483575] [fconfigure ... -error] now no-op on Mac (kupries)
 5424 
 5425 2002-02-28 (performance enhancement)[458872] fully qualified command names use
 5426 cached Command for all namespaces, avoiding repeated lookups (sofer)
 5427 
 5428  * (new feature)[TIP 27] completed CONST-ification of TCL APIs.
 5429 Added compiler macro USE_NON_CONST to keep using those old API prototypes
 5430 that present irreconcilable source incompatibilities with header files
 5431 of prior Tcl releases.  Others will need to be reconciled.
 5432         *** POTENTIAL INCOMPATIBILITY ***
 5433 
 5434 2002-03-04 (bug fix)[474358, 218099, 219314, 524674] fixed several problems
 5435 related to the handling of iso2022 text and finalization of escape-based
 5436 encodings. (taguchi, takahashi, hobbs)
 5437 
 5438 --- Released 8.4a4, March 5, 2002 --- See ChangeLog for details ---
 5439 
 5440 2002-03-06 (new feature)[TIP 80] expanded [lsearch] options (wilkason, fellows)
 5441 
 5442 2002-03-07 (new feature)[TIP 87] [interp recursionlimit] (trier)
 5443 
 5444 2002-03-08 (platform feature) mingw 1.1 build favored (dejong)
 5445 
 5446 2002-03-20 (new feature)[TIP 27] CONST-ified variable access functions (porter)
 5447 
 5448 2002-03-24 (bug fix)[511666,511658,523217,530960] expanded
 5449 Tcl_FSMatchInDirectory to handle assorted [glob] bugs in VFS. (darley)
 5450         *** POTENTIAL INCOMPATIBILITY with prior 8.4a releases ***
 5451 
 5452 2002-03-25 (bug fix)[495726] stopped tcltest disabling of auto-loading (porter)
 5453 
 5454 2002-03-25 (bug fix)[495977] allow \n in test constraints (porter)
 5455 
 5456 2002-03-27 (platform support)[527941,533862] VC/winhelp/W9X (spjuth,
 5457 gravereaux)
 5458 
 5459 2002-03-28 (bug fix)[219181] exception at level 0 issues (sofer)
 5460 
 5461 2002-03-28 (bug fix)[219362] command termination; Tcl_CreateTrace (knoll,sofer)
 5462 
 5463 2002-04-05 (bug fix)[536879] exceptions during variable subst (porter)
 5464 
 5465 2002-04-15 (bug fix)[497446,513983] tcltest syntax errors now raised (porter)
 5466 	***POTENTIAL INCOMPATIBILITY with prior tcltest 2.0.* (8.4aX)***
 5467 
 5468 2002-04-17 (bug fix)[495660] [(save|restore)state] deprecated (porter)
 5469 
 5470 2002-04-17 (bug fix)[526524] escape-based encodings corrected (yamamoto, hobbs)
 5471 
 5472 2002-04-18 (bug fix)[542588] [expr] error msgs improved (ehrens, sofer)
 5473 
 5474 2002-04-18 (bug fix)[545325] [info level $level] now returns [namespace eval]
 5475 as documented (suchenwirth,sofer)
 5476 
 5477 2002-04-19 (bug fix)[544727] export [mcload]; ns context of [mcmax] (porter)
 5478 => msgcat 1.2.3
 5479 
 5480 2002-04-22 (performance enhancement) threaded memory allocator (AOL, hobbs)
 5481 
 5482 2002-04-24 (new feature) TCLTK_NO_LIBRARY_TEXT_RESOURCES #define disables
 5483 inclusion of tcl library code in resource fork on Mac.  (steffen)
 5484 
 5485 2002-05-21 (platform support) static libs on OSF (dejong)
 5486 
 5487 2002-05-24 (bug fix)[557878] set encoding on listening socket (staplin,
 5488 kupries)
 5489 
 5490 2002-05-24 (new feature)[TIP 91] Tcl_Seek compatibility (fellows)
 5491 
 5492 2002-05-28 (bug fix)[545579] VFS [load] left temp file (darley)
 5493 
 5494 2002-05-28 (bug fix)[559376] plug timezone env leak on Windows (hobbs)
 5495 
 5496 2002-05-29 (performance enhancement) [string compare] optimized (hobbs,fellows)
 5497 
 5498 2002-05-31 (bug fix)[550534] plug interp leak in [pkg_mkIndex] (helmut)
 5499 
 5500 2002-05-31 (dead code)[474335,555635] removed all use of matherr() (english)
 5501         *** POTENTIAL INCOMPATIBILITY ***
 5502 
 5503 2002-06-04 (new feature)[TIP 85,521362] custom result match in tcltest
 5504 (markus, porter)
 5505 => tcltest 2.1
 5506 
 5507 2002-06-06 (bug fix)[524352] encoding, threading, and environment issues on
 5508 MacOSX (steffen)
 5509 
 5510 2002-06-06 (bug fix)[512214,558742,512214,461000] lazy initialization of
 5511 tcltest constraints (porter)
 5512 
 5513 2002-06-07 (bug fix)[563122,564595] EOVERFLOW definitions (fellows)
 5514 
 5515 2002-06-11 (bug fix)[567386] [info locals] corrections (sofer)
 5516 
 5517 2002-06-14 (new feature)[TIP 102] [trace list] renamed [trace info] (fellows)
 5518 
 5519 2002-06-17 (new feature)[525522,525525] msgcat support for XPG4 locales;
 5520 examination of LC_ALL, LC_MESSAGES environment variables (haible, porter)
 5521 => msgcat 1.3
 5522 
 5523 2002-06-17 (new feature)[565088] header files assume modern C compiler by
 5524 default; older compilers may need configuration (english)
 5525         *** POTENTIAL INCOMPATIBILITY ***
 5526 
 5527 2002-06-17 (bug fix)[554068] [exec] argument quoting on Windows (darley)
 5528 
 5529 2002-06-17 (new feature)[TIP 62,462580] command execution traces (lavana)
 5530 
 5531 2002-06-19 (bug fix)[558324] regexp sets a linked variable (watson)
 5532 
 5533  * (performance enhancment) optimizations of bytecode execution (sofer)
 5534 
 5535 2002-06-21 (new feature)[TIP 99,562970] new [file link] command (darley)
 5536 
 5537 2002-06-24 (new feature)[TIP 101] new [tcltest::configure] command (porter)
 5538 => tcltest 2.2
 5539 
 5540 2002-06-25 (new feature) --enable-man-symlinks and --enable-man-compression
 5541 options to configure (max)
 5542 
 5543 2002-06-26 (bug fix)[565880] [clock format] now respects locale (max)
 5544         *** POTENTIAL INCOMPATIBILITY ***
 5545 
 5546 2002-07-03 (bug fix)[577015] [catch] catches even compile errors (sofer)
 5547 
 5548 --- Released 8.4b1, July 5, 2002 --- See ChangeLog for details ---
 5549 
 5550 2002-07-08 (bug fix) restored compatibility of [viewFile] in tcltest (porter)
 5551 
 5552 2002-07-11 (bug fix) [file normalize] returns long form on Win 95/98/ME (darley)
 5553 
 5554 2002-07-15 (performance enhancment) variable operations rewritten to store
 5555 	and use cached Var pointers (sofer)
 5556 
 5557 2002-07-22 (bug fix)[218000] Inf and Nan are floating-point values (fellows)
 5558 
 5559 2002-07-23 (platform support)[219220] 64-bit compile on IRIX (dejong)
 5560 
 5561 2002-07-25 (bug fix)[219218] return codes in background errors (english)
 5562 
 5563 2002-07-28 (bug fix)[582522] alias fires exec traces (sofer)
 5564 
 5565 2002-07-29 (bug fix)[578363] regexp (fellows,pvgoran)
 5566 
 5567 2002-07-30 (bug fix)[584603] WriteChars infinite loop non-UTF-8 string (kupries)
 5568 
 5569 2002-08-04 (new feature)[584051,580433,585105,582429][TIP 27] Tcl interfaces
 5570 	are now fully CONST-ified.  Use the symbols USE_NON_CONST or
 5571 	USE_COMPAT_CONST to select interfaces with fewer changes.
 5572         *** POTENTIAL INCOMPATIBILITY ***
 5573 
 5574 2002-08-05 (bug fix)[589859] tcltest setup and cleanup scripts skipped when
 5575 	test body is skipped (porter)
 5576 	=> tcltest 2.2
 5577 
 5578 2002-08-07 (bug fix)[587488] mem leak with USE_THREAD_ALLOC (sofer,sass)
 5579 
 5580 2002-08-07 (feature enhancement)[584794,584650,472576] boolean values
 5581 	are no longer always re-parsed from string. (sofer)
 5582 
 5583 Many internal bugs fixed.
 5584 Considerable cleanup of the test suite.
 5585 
 5586 --- Released 8.4b2, August 9, 2002 --- See ChangeLog for details ---
 5587 
 5588 2002-08-20 (new feature) --enable-memdebug configure option (kupries)
 5589 
 5590 2002-08-23 (bug fix)[597936] mem leak with USE_THREAD_ALLOC (sofer,zoran)
 5591 
 5592 2002-08-26 (bug fix)[599788] segfault in compiler (sofer,wilkason)
 5593 
 5594 2002-08-28 (bug fix)[414910] avoid mem leaks accessing environment variables
 5595 	on Windows (welton,gravereaux)
 5596 
 5597 2002-08-31 (platform support)[TIP 108] Mac OS X port (steffen,ingham)
 5598 
 5599 2002-09-02 (platfrom support) 64-bit compile on HP-11 (martin)
 5600 
 5601 --- Released 8.4.0, September 10, 2002 --- See ChangeLog for details ---
 5602 
 5603 2002-09-18 (platform support) Updated support for compiling with Cygwin and
 5604 either mingw or gcc. (khan, howell, dejong)
 5605 
 5606 2002-09-22 (bug fix)[612786, 611922] Corrected [puts -nonewline] within
 5607 test bodies. Also corrected reporting of body return code.  Updated tcltest
 5608 to v2.2.1.
 5609 
 5610 2002-09-24 (bug fix)[613117] More robust 64-bit wide integer value
 5611 detection (fellows)
 5612 
 5613 2002-09-26 (bug fix) correct overeager optimization of noop proc to handle
 5614 the precompiled case. (sofer, hobbs)
 5615 
 5616 2002-09-26 (bug fix)[615115] removed extraneous spaces in koi8-u.enc that
 5617 confused encoding reader.
 5618 
 5619 2002-09-29 (bug fix)[219355] Added proper exiting conditions using Win32
 5620 console signals.  This handles the existing lack of a Ctrl+C exit to call
 5621 exit handlers when built for thread support.  Also, properly handles exits
 5622 from other conditions such as CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and
 5623 CTRL_SHUTDOWN_EVENT signals.  In all cases, exit handlers will be called.
 5624 (gravereaux)
 5625 
 5626 2002-09-30 (bug fix) improve the checking for bad regular expressions
 5627 during regexp compilation.  Resultant compiles were correct, but much
 5628 slower than necessary. (hobbs)
 5629 
 5630 2002-10-01 (bug fix) fix precompiled locals to support 8.3 precompiled
 5631 code. (hobbs)
 5632 
 5633 2002-10-09 (bug fix)[620735] Added code to set an exit handler on Windows
 5634 that terminates the thread that calibrates the performance counter, so that
 5635 the thread won't outlive unloading the Tcl DLL. (kenny)
 5636 
 5637 2002-10-09 (build support) all --enable-symbols to take the enhanced
 5638 options yes|no|mem|compile|all. (hobbs)
 5639 
 5640 2002-10-10 (build support) enable USE_THREAD_ALLOC (new threaded allocator)
 5641 by default on Windows. (hobbs, gravereaux)
 5642 
 5643 2002-10-14 (bug fix)[623269] correct possible mem leak in
 5644 Tcl_PutEnv. (brouwers)
 5645 
 5646 2002-10-15 (bug fix)[615043] fix in execution traces with idle tasks
 5647 firing. (lavana)
 5648 
 5649 2002-10-15 (platform support) Correct AIX-5 ppc and 4/5 64-bit build flags.
 5650 Correct HP 11 64-bit gcc building. (martin, hobbs)
 5651 
 5652 2002-10-17 (bug fix)[624755] Fixed code that check for proper # of args to
 5653 [array names] (porter)
 5654 
 5655 2002-10-18 (feature enhancement)[625453] Added support for broadcasting
 5656 changes to the registry Environment on Windows.  Updated registry package
 5657 to v1.1. (hobbs)
 5658 
 5659 2002-10-22 (platform support)[624509] On macosx, add embedded framework
 5660 dirs to tcl_pkgPath: @executable_path/../Frameworks and
 5661 @executable_path/../PrivateFrameworks (if they exist), as well as the dirs
 5662 in DYLD_FRAMEWORK_PATH (if set). (steffen)
 5663 
 5664 --- Released 8.4.1, October 22, 2002 --- See ChangeLog for details ---
 5665 
 5666 2002-10-28 (bug fix)[627660] [package unknown] chaining for platform specifics
 5667 
 5668 2002-10-29 (bug fix)[627546] verbose [load] (dyld) error mesages on MacOSX
 5669 
 5670 2002-11-01 (bug fix) [package provide registry] consistent versions.
 5671 
 5672 2002-11-06 (bug fix)[582039] missing ar program -> configuration error
 5673 
 5674 2002-11-06 (feature enhancement) added new TclInThreadExit function to
 5675 test for thread exit vs whole process exit condition. The TclInExit
 5676 function now correctly returns 1 during Tcl_Finalize processing.
 5677         *** POTENTIAL INCOMPATIBILITY ***
 5678 
 5679 2002-11-13 (bug fix)[615043] some execution traces were not firing
 5680 
 5681 2002-11-18 (bug fix)[634856] multiple signs no longer accepted as valid integer
 5682 [string is integer ++1] => 0
 5683         *** POTENTIAL INCOMPATIBILITY ***
 5684 
 5685 2002-11-26 (bug fix)[593810,597924] clean exit of channel worker threads on Win
 5686 
 5687 2002-11-28 (new feature) `make valgrind` target
 5688 
 5689 2002-12-03 (bug fix)[615304] repeated load/unload of Tcl now possible
 5690 
 5691 2002-12-11 (bug fix)[647307] negative return codes now propagated by procs
 5692 
 5693 2002-12-11 (bug fix)[648441] syntax error in [expr 0x] now detected.
 5694 
 5695 2003-01-07 (bug fix)[633204] [catch {return}] => 2 (not 0)
 5696 
 5697 2003-01-09 (bug fix)[634151] [file (a|m)time $nonASCIIpath $time] now works
 5698 
 5699 2003-01-16 (bug fix) dde eval with {} service name does not crash.
 5700 => dde 1.2.1
 5701 
 5702 2003-01-16 (bug fix)[635200,655645,615043,571385] many command trace fixes
 5703 
 5704 2003-01-31 (bug fix)[675614,678415,676978] tcltest conflicts in cleanup
 5705 and -outfile; also failure in space-containing path; also missing [close]
 5706 => tcltest 2.2.2
 5707 
 5708 2003-02-01 (bug fix)[670042] corrected [info loaded {}] for static
 5709 packages in multiple interps.
 5710 
 5711 2003-02-01 (bug fix)[675356] [clock clicks {}]; [clock clicks -] - syntax errs
 5712 
 5713 2003-02-01 (bug fix)[656660] MT-safety for [clock format]
 5714 
 5715 2003-02-03 (bug fix)[651271] command rename traces get fully-qualified names
 5716         *** POTENTIAL INCOMPATIBILITY ***
 5717 
 5718 2003-02-07 (performance improvement) [glob] on Windows is 2.5 times faster
 5719 
 5720 2003-02-07 (feature change) lack of Cygwin support indicated by config error
 5721 
 5722 2003-02-11 (bug fix)[684744] [info complete] stopped by \x00
 5723 
 5724 2003-02-11 (bug fix)[685445] [glob -types l] missed broken symlinks on Unix
 5725 
 5726 2003-02-11 (bug fix) [lsearch -regexp $a $a] doesn't crash
 5727 
 5728 2003-02-13 (bug fix)[685926] accept non-ASCII7 for tcl_platform(user) on Win
 5729 
 5730 2003-02-15 (bug fix)[673714] stop crash when Tcl_DeleteEvents deletes last
 5731 
 5732 2003-02-15 (bug fix)[681841] parser missed some missing ] syntax errors
 5733 
 5734 2003-02-17 (bug fix)[684756] memory leak during command rename plugged
 5735 
 5736 2003-02-18 (bug fix)[689100] reduced per-thread memory overhead
 5737 
 5738 2003-02-18 (platform support)[651811] use xnet library on HP 11 (64 bit).
 5739 
 5740 2003-02-20 (bug fix)[Patch 689341] correct jis round-trip encoding
 5741 
 5742 2003-02-20 (bug fix)[689835] stop MacOSX hang trying to read a write-only pipe
 5743 
 5744 2003-02-07 (performance improvement) [tclPkgUnknown]: fewer vfs calls
 5745 
 5746 2003-02-18 (platform support) cut and splice procs for file channels on Mac
 5747 
 5748 2003-02-21 (bug fix)[690774] [binary scan] failed on some wide ints
 5749 
 5750 2003-02-22 (bug fix)[571002] plugged data leak during thread exit
 5751 
 5752 2003-02-25 (feature change) [pkg_mkIndex -load]: case-insensitive match
 5753         *** POTENTIAL INCOMPATIBILITY ***
 5754 
 5755 2003-02-27 (bug fix)[694232] stop [lsearch -start 0 {} x] segfault
 5756 
 5757 --- Released 8.4.2, March 3, 2003 --- See ChangeLog for details ---
 5758 
 5759 2003-03-06 (bug fix)[699042] Correct case-insensitive unicode string
 5760 comparison in Tcl_UniCharNcasecmp
 5761 
 5762 2003-03-11 (bug fix) Corrected loading of tclpip8x.dll on Win9x
 5763 
 5764 2003-03-12 (bug fix)[702383] Corrected parsing of interp create --
 5765 
 5766 2003-03-12 (bug fix)[685106] Correct Tcl_SubstObj handling of \x00 bytes
 5767 
 5768 2003-03-14 (bug fix)[702622 699060] Correct wide int issues in 'format'
 5769 
 5770 2003-03-14 (bug fix)[698146] Remove assumption that file times and longs
 5771 are the same size.
 5772 
 5773 2003-03-18 (bug fix)[697862] Allow Tcl to differentiate between reparse
 5774 points which are symlinks and mounted drives on Windows
 5775 
 5776 2003-03-19 (bug fix)[705406] Bad command count on TCL_OUT_LINE_COMPILE
 5777 
 5778 2003-03-20 (bug fix)[707174] Store pointers to notifier funcs in a struct
 5779 to work around some platform linker issues
 5780 
 5781 2003-03-22 (bug fix)[708218] Load correct (non-)debug dll for dde or
 5782 registry
 5783 
 5784 2003-03-24 (bug fix)[631741 696893] Fixing ObjMakeUpvar's lookup algorithm
 5785 for the created local variable
 5786 
 5787 2003-04-07 (bug fix)[713562] Make sure that tclWideIntType is defined and
 5788 somewhat sensible everywhere
 5789 
 5790 2003-04-07 (bug fix)[711371] Corrected string limits of arguments
 5791 interpolated in error messages for 'if'
 5792 
 5793 2003-04-11 (bug fix)[718878] Corrected inconsistent results of
 5794 [string is integer] observed on systems where sizeof(long) != sizeof(int)
 5795 
 5796 2003-04-12 (bug fix) Substantial changes to the Windows clock synch
 5797 phase-locked loop in a quest for improved loop stability
 5798 
 5799 2003-04-16 [713562] Made changes so that the "wideInt" Tcl_ObjType is
 5800 defined on all platforms, even those where TCL_WIDE_INT_IS_LONG is defined.
 5801 Also made the Tcl_Value struct have a wideValue field on all platforms.
 5802 Potential incompatibility for TCL_WIDE_INT_IS_LONG platforms because that
 5803 struct changes size.
 5804         *** POTENTIAL INCOMPATIBILITY ***
 5805 
 5806 2003-04-25 (bug fix)[727271] Catch any errors returned by the Windows
 5807 functions handling TLS ASAP instead of waiting to get some mysterious crash
 5808 later on due to bogus pointers.
 5809 
 5810 2003-04-29 (bug fix) Correct 'glob -path {[tcl]} *', where leading
 5811 special character instead lists files in '/'.  Bug only occurs on Windows
 5812 where '\' is also a directory separator.
 5813 
 5814 2003-05-09 (bug fix)[731754] Fixed memory leak in threaded allocator on
 5815 Windows caused by treating cachePtr as a TLS index
 5816 
 5817 2003-05-10 (bug fix)[710642] Ensure cd is thread-safe
 5818 
 5819 2003-05-10 (bug fix)[718002] Correct mem leak on closing a Windows serial
 5820 port
 5821 
 5822 2003-05-10 (bug fix)[714106] Prevent string repeat crash when overflow
 5823 sizes were given (throws error).
 5824 
 5825 2003-05-13 (feature enhancement)[736774] Use new versioned bundle resource
 5826 API to get tcl runtime library for TCL_VERSION on Mac OS X.
 5827 
 5828 2003-05-13 (bug fix)[711232] Worked around the issue of realpath() not
 5829 being thread-safe on Mac OS X by defining NO_REALPATH for threaded builds
 5830 on Mac OS X.
 5831 
 5832 2003-05-14 (bug fix)[557030] Correct handling of the gb2312 encoding by
 5833 making it an alias of the euc-cn encoding and creating a gb2312-raw
 5834 encoding for the original.  Most uses of gb2312 really mean euc-cn.
 5835 
 5836 2003-05-14 (bug fix)[736421] Corrected another putenv() copy behavior
 5837 problem when compiling on Windows and using Microsoft's runtime.
 5838 
 5839 --- Released 8.4.3, May 20, 2003 --- See ChangeLog for details ---
 5840 
 5841 2003-05-23 (bug fix)[726018] reverted internals change to the
 5842 'cmdName' Tcl_ObjType that broke several extensions (TclBlend, e4graph...)
 5843 in the 8.4.3 release.
 5844 
 5845 2003-06-10 (bug fix)[495830] stop eval of bytecode in deleted interp.
 5846 
 5847 2003-06-17 (bug fix) corrections to regexp when matching emtpy string.
 5848 
 5849 2003-06-25 (bug fix)[748957] -*ieee compiler flags for Tru64 builds.
 5850 
 5851 2003-07-11 (bug fix) [pkg_mkIndex] indexes provided packages, not indexed ones.
 5852 
 5853 2003-07-15 (feature enhancement) MacOSX build system rewrite.
 5854 
 5855 2003-07-15 (bug fix)[771613] corrected segfault in [if] (buffer overflow)
 5856 
 5857 2003-07-16 (bug fix)[756791] corrected assumption that Tcl_Free == free
 5858 
 5859 2003-07-16 (feature enhancement) -DTCL_UTF_MAX=6 compile option forces
 5860 internal UCS-4 representation of Unicode (default is recommended UCS-2).
 5861 
 5862 2003-07-16 (bug fix)[767578] 64-bit corrections in thread notifier.
 5863 
 5864 2003-07-16 (bug fix)[759607] Safe Base tests normalized paths.
 5865 
 5866 2003-07-16 (feature enhancement)[Patch 679315] improved Cygwin path support
 5867 
 5868 2003-07-18 (bug fix)[706359] corrected broken -output option of [tcltest::test]
 5869 => tcltest 2.4.4
 5870 
 5871 2003-07-18 (bug fix)[753315] MT-safety of VFS records.
 5872 
 5873 2003-07-18 (bug fix)[759888] support for user:pass in URL by [http::geturl]
 5874 => http 2.4.4
 5875 
 5876 Improved documentation, new tests, and some code cleanup.
 5877 [655300, 720634, 735364, 748700, 756112, 756744, 756951, 758488, 760768,
 5878 763312, 769895, 771539, 771840, 771947, 771949, 772333]
 5879 
 5880 --- Released 8.4.4, July 22, 2003 --- See ChangeLog for details ---
 5881 
 5882 2003-07-23 (bug fix)[775976] fix registry compilation for VC7.
 5883 
 5884 2003-08-05 (enhancement)[781585] Use Tcl_ResetResult in bytecodes to
 5885 prevent potential costly Tcl_Obj duplication.
 5886 
 5887 2003-08-06 (bug fix)[781609] prevent non-Windows platforms from trying to
 5888 use the registry package inside msgcat.
 5889 
 5890 2003-08-27 (bug fix)[411825] Fix TclNeedSpace to handle non-breaking space
 5891 (\u00A0) and backslash escapes correctly.
 5892 
 5893 2003-09-01 (bug fix)[788780] Fix thread-safety issues in filesystem records.
 5894 
 5895 2003-09-19 (bug fix)[804681] Protect ::errorInfo and ::errorCode traces
 5896 from corrupting stack.
 5897 
 5898 2003-09-23 (bug fix)[218871] Fix handling of glob-sensitive chars in
 5899 auto_load and auto_import.
 5900 
 5901 2003-10-03 (bug fix)[811483] Fixed refcount management for command and
 5902 execution traces.
 5903 
 5904 2003-10-04 (bug fix)[789040] Fixed exec command.com error for Win9x.
 5905 
 5906 2003-10-06 (bug fix)[767834, 813273] Fixed volumerelative file
 5907 normalization and 'file join' inconsistencies.
 5908 
 5909 2003-10-08 (bug fix)[769812] Fix Tcl_NumUtfChars string length calculation
 5910 when negative parameter is given.
 5911 
 5912 2003-10-22 (bug fix)[800106] Handle VFS mountpoints inside glob'd dirs.
 5913 
 5914 2003-10-22 (bug fix)[599468] Watch for FD_CLOSE too on Windows when
 5915 asked for writable events by the generic layer.
 5916 
 5917 2003-10-23 (bug fix)[813606] Detect OS X pipes correctly.
 5918 
 5919 2003-11-05 (bug fix)[832657] Allow .. in libpath initialization.
 5920 
 5921 2003-11-11 (bug fix) Improve AIX-64 build configuration.
 5922 
 5923 2003-11-17 (bug fix)[230589, 504785, 505048, 703709, 840258] fixes to
 5924 various odd regexp "can't happen" bugs.
 5925 
 5926 --- Released 8.4.5, November 20, 2003 --- See ChangeLog for details ---
 5927 
 5928 2003-12-02 (bug fix)[851747] object sharing fix in [binary scan]
 5929 
 5930 2003-12-09 (platform support)[852369] update errno usage for recent glibc
 5931 
 5932 2003-12-12 (bug fix)[858937] fix for [file normalize ~nobody]
 5933 
 5934 2003-12-17 (bug fix)[839519] fixed two memory leaks (vasiljevic)
 5935 
 5936 2004-01-09 (bug fix)[873311] fixed infinite loop in TclFinalizeFilesystem
 5937 
 5938 2004-02-02 (bug fix)[405995] Tcl_Ungets buffer filling fix
 5939 
 5940 2004-02-04 (bug fix)[833910] tcltest command line option parsing error
 5941 => tcltest 2.4.5
 5942 
 5943 2004-02-04 (bug fix)[833637] code error in tcltest -preservecore operation
 5944 
 5945 2004-02-12 (feature enhancement) update HP-11 build libs setup
 5946 
 5947 2004-02-17 (bug fix)[849514,859251] corrected [file normailze] of $link/..
 5948 
 5949 2004-02-17 (bug fix)[772288] Unix std channels forced to exist at startup.
 5950 
 5951 2004-02-17 (new default) tcltest::configure -verbose {body error}
 5952 
 5953 2004-02-19 (bug fix) init.tcl search path with unusual --libdir (samson)
 5954 
 5955 2004-02-25 (bug fix)[554068] stopped broken [exec] quoting of { (gravereaux)
 5956 
 5957 2004-02-25 (bug fix)[888777] plugged memory leak with long host names (cassoff)
 5958 
 5959 2004-03-01 (bug fix)[462580] corrected level interpretation of Tcl_CreateTrace
 5960 
 5961 2004-03-01 (platform support)[218561] Allow 64-bit configure on IRIX64-6.5*
 5962 
 5963 --- Released 8.4.6, March 1, 2004 --- See ChangeLog for details ---
 5964 
 5965 Changes to 8.5a1 include all changes to the 8.4 line through 8.4.6,
 5966 plus the following, which focuses on the high-level feature changes
 5967 in this changeset (new minor version) rather than bug fixes:
 5968 
 5969  * refactored IO code to split FS path code into generic/tclPathObj.c
 5970   and generic/tclFileSystem.h
 5971 
 5972  * refactored trace code into generic/tclTrace.c
 5973 
 5974  * configure scripts now require autoconf 2.57 for regeneration
 5975 
 5976  * updated runtime library scripts to use newer Tcl code features
 5977    (like replacing regsub with string map)
 5978 
 5979  * improve robustness of tcltest test suite across environments
 5980 
 5981  * changed the bytecode evaluation-stack addressing mode, from array-style
 5982    to pointer-style; the catch stack and evaluation stack are now
 5983    contiguous in memory
 5984 
 5985  * switch command is now byte-compiled
 5986 
 5987  * enhanced checking in 'file' command for Windows NT file permissions
 5988 
 5989  * [TIP #57] new 'lassign' command (adopted from TclX)
 5990 
 5991  * [TIP #75] switch -regexp now provides submatch info
 5992 
 5993  * [TIP #90] extended 'catch' and 'return' to enable creation of procs
 5994    that are a true replacement for 'return'
 5995 
 5996  * [TIP #100] new 'unload' command (can unload DLLs loaded via 'load',
 5997    requires the extension writer to support it)
 5998 
 5999  * [TIP #111] new 'dict' command.  Several commands have been updated
 6000    to handle the list form of dicts implicitly at the C level where
 6001    only lists were previously accepted
 6002 
 6003  * [TIP #112] 'namespace ensemble' command addition allows for ensembles
 6004    that build on the namespace abstraction
 6005 
 6006  * [TIP #118] file attributes -readonly option for unices that support
 6007    chflags(), support Mac Classic attribute options on OS X, add
 6008    -rsrclength for OS X, enhance file copy on OS X to copy finder
 6009    attributes and resource forks transparently
 6010 
 6011  * [TIP #120] enable dde in safe interpreters
 6012  * [TIP #130] enable unique dde server names on Windows
 6013  * [TIP #135] change dde servername -exact option to -force
 6014 => dde 1.3
 6015 
 6016  * [TIP #121] new Tcl_SetExitProc C API to control application shutdown
 6017 
 6018  * [TIP #123] expr ** exponentiation operator
 6019 
 6020  * [TIP #124] 'clock clicks -milliseconds' now returns a wide integer and a
 6021    new 'clock clicks -microseconds' returns a wide integer, representing
 6022    the number of microseconds, both since the Posix epoch
 6023 
 6024  * [TIP #127] added 'lsearch -index' option
 6025 
 6026  * [TIP #136] added 'lrepeat' command
 6027 
 6028  * [TIP #137/151] Add -encoding option to 'source' command and main tclsh
 6029    executable.
 6030      *** POTENTIAL INCOMPATIBILITY ***
 6031    For Tcl embedders that build on Tcl_Main() and make use of Tcl_Main's
 6032    former ability to pass a leading "-encoding" option to interactive shell
 6033    operations, this will now be consumed by Tcl.
 6034 
 6035  * [TIP #138] New TCL_HASH_KEY_SYSTEM_HASH option for Tcl hash tables
 6036 
 6037  * [TIP #139] documented portions of Tcl's namespace C APIs
 6038 
 6039  * [TIP #148] correct [list]-quoting of the '#' character
 6040      *** POTENTIAL INCOMPATIBILITY ***
 6041    For scripts that assume a particular (buggy) string rep for lists.
 6042 
 6043  * [TIP #156] add "root locale" to msgcat
 6044 => msgcat 1.4
 6045 
 6046  * [TIP #157] leading {expand} syntax on words to cause argument expansion.
 6047    This is a safer/cleaner alternative to the use of 'eval'.
 6048 
 6049 --- Released 8.5a1, March 3, 2004 --- See ChangeLog for details ---
 6050 
 6051 2004-03-04 (new feature) registry package is [unload]able (thoyts)
 6052 => registry 1.1.4
 6053 
 6054 2004-03-08 (bug fix)[910525] [glob -path] in root directory (darley)
 6055 
 6056 2004-03-12 (new feature)[TIP 163] [dict merge] (english, fellows)
 6057 
 6058 2004-03-18 (platform support) support for Mac Classic removed (steffen)
 6059 
 6060 2004-03-28 (bug fix)[925121] corrected segfault in bc compiler (sofer)
 6061 
 6062 2004-03-30 (bug fix)[495830,729692] bytecode execution checks
 6063 each command/interp validity before executing. (sofer)
 6064 
 6065 2004-03-31 (bug fix)[811457] support translation to "" (porter)
 6066 2004-03-31 (bug fix)[811461] ignore locales with no "language" part (porter)
 6067 => msgcat 1.4.1
 6068 
 6069 2004-04-01 (bug fix) make [glob -type d -dir . *] work across VFS boundary
 6070 
 6071 2004-04-06 (clean up) refactored Tcl header file #include order.  Might
 6072 create need for changes in extensions that #include private headers.
 6073 Changed source code files should work with older Tcl as well.  See ChangeLog.
 6074      *** POTENTIAL INCOMPATIBILITY ***
 6075 
 6076 2004-04-07 (bug fix)[920667] install into any Unicode path on Win (hobbs)
 6077 
 6078 2004-04-07 (platform support) properly substitute more values in Windows
 6079 tclConfig.sh (hobbs)
 6080 
 6081 2004-04-23 (bug fix)[930851] reset channel EOF when eofchar changes (kupries)
 6082 
 6083 2004-04-28 (bug fix)[600812][TIP 184] [upvar 0 scalar array(foo)] raises error
 6084 
 6085 2004-05-03 (bug fix)[947070] stack overflow prevention on Win (kenny)
 6086 
 6087 2004-05-03 (bug fix)[868853] fix leak in [fconfigure $serial -xchar] (cassoff)
 6088 
 6089 2004-05 (bug fix)[928353,929892,928808,947440,948177] test fixes: OSX (abner)
 6090 
 6091 2004-05-05 (bug fix)[794839] socket connect error -> r/w fileevents
 6092 (gravereaux)
 6093 
 6094 2004-05-07 (bug fix)[949905] corrected utf-8 encoding of \u0000 on I/O (max)
 6095 
 6096 2004-05-13 (new feature)[TIP 129] [binary scan tnmrRqQ] (markus, fellows)
 6097 
 6098 2004-05-13 (new feature)[TIP 142] [interp limit] (fellows)
 6099 
 6100 2004-05-14 (bug fix)[940278,922848] [clock] notices $::env(TZ) changes,
 6101 gmt works on all platforms. (kenny, welton, glessner)
 6102 
 6103 2004-05-16 (feature rewrite) bytecode execution of {expand} changed
 6104         *** POTENTIAL INCOMPATIBILITY with prior 8.5a releases ***
 6105 
 6106 2004-05-18 (platform support) makefile.vc now generates tclConfig.sh (thoyts)
 6107 
 6108 2004-05-18 (bug fix)[500285,500389,852944] [clock %G %V] ISO8601 week numbers
 6109 (kenny)
 6110 
 6111 2004-05-22 (bug fix)[735335,736729] variable name resolution error (sofer)
 6112 
 6113 2004-05-24 (bug fix) support for non-WIDE_INT aware math functions (hobbs)
 6114 
 6115 2004-05-25 (new feature) [http::config -urlencoding] (hobbs)
 6116 => http 2.5.0
 6117 
 6118 2004-05-26 (bug fix)[960926] file count doubled when -singleproc 1 (porter)
 6119 => tcltest 2.2.6
 6120 
 6121 2004-05-26 (bug fix)[874058] improved build configuration on 64-bit systems.
 6122 Corrects Tcl_StatBuf definition issues.  (hobbs)
 6123 
 6124 2004-05-30 (platform support) Win: allow signed short exit codes (gravereaux)
 6125 
 6126 2004-06-05 (bug fix)[976722] hi-res clock fixes: Win
 6127 (godfrey, suchenwirth, kenny)
 6128 2004-06-10 (bug fix)[932314] bad return values from Tcl_FSChdir() (vasiljevic)
 6129 
 6130 2004-06-18 (platform support) regonize more unix locales (huang)
 6131 
 6132 2004-06-18 (bug fix) prevent stack overflow from long free() chains (fellows)
 6133 
 6134 2004-06-21 (platform support) exceptions w/ gcc -O3 on Win (dejong)
 6135 
 6136 2004-06-23 (feature rewrite)[976496] thread local storage done with hash
 6137 tables to avoid system limits (mistachkin)
 6138 
 6139 2004-06-29 (bug fix)[981733] SafeBase global pollution (fellows)
 6140 
 6141 2004-06-30 (new feature)[TIP 188] [string is wideinteger] (kenny)
 6142 
 6143 2004-07-02 (new feature)[TIP 202] pipe redirection 2>@1 (hobbs)
 6144 
 6145 2004-07-03 (bug fix)[908375] round() wide integer support (lavana, sofer)
 6146 
 6147 2004-07-07 (bug fix)[458361] shimmer of single-word scripts suppressed (sofer)
 6148 
 6149 2004-07-15 (bug fix)[770053] crash in thread finalize of notifier (vasiljevic)
 6150 
 6151 2004-07-15 (bug fix)[990453] plug mutex leaks on reinit
 6152 (mistachkin, vasiljevic)
 6153 
 6154 2004-07-16 (bug fix)[990500] clean exit of notifier thread
 6155 (mistachkin, kupries)
 6156 
 6157 2004-07-19 (bug fix)[987967] improved self-init of mutexes on Win (vasiljevic)
 6158 
 6159 2004-07-20 (bug fix) pure Darwin/CFLite support (steffen)
 6160 
 6161 2004-07-20 (bug fix)[736426] plug leaky allocator reinit (mistachkin, kenny)
 6162 
 6163 2004-07-30 (bug fix)[999084] no deadlock in re-entrant Tcl_Finalize (porter)
 6164 
 6165 2004-08-02 (new feature)[TIP 207] [interp invokehidden -namespace] (porter)
 6166 
 6167 2004-08-10 (bug fix) thread IDs on 64-bit systems (ratcliff,vasiljevic)
 6168 
 6169 2004-08-13 (bug fix) avoid malicious code acceptance by [mclocale] (porter)
 6170 => msgcat 1.3.3
 6171 
 6172 2004-08-16 (bug fix)[1008314] Tcl_SetVar TCL_LIST_ELEMENT (sofer,porter)
 6173 
 6174 2004-08-18 (new feature)[TIP 173,209] complete [clock] rewrite (kenny)
 6175 	*** POTENTIAL INCOMPATIBILITY ***
 6176 
 6177 2004-08-18 (new feature)[TIP 189] package loading for Tcl Modules (kupries)
 6178 
 6179 2004-08-19 (bug fix)[1011860] [scan %ld] fix on LP64 (fellows,porter)
 6180 
 6181 2004-08-23 (bug fix)[695441] extend [tcl_findLibrary] search path to include
 6182 		$::auto_path and [pkgconfig get scriptdir,runtime] (porter)
 6183 
 6184 2004-08-27 (platform support) TCL_MODULE_PATH values for Mac OSX (steffen)
 6185 
 6186 2004-08-27 (bug fix)[1017022] recognize imported ensembles (fellows)
 6187 
 6188 2004-08-30 (bug fix) [string map $x $x] crash (fellows)
 6189 
 6190 2004-09-01 (bug fix)[1020445] WIN64 support (hobbs)
 6191 
 6192 2004-09-03 (bug fix)[1020538] crash in [file copy] (violi,fellows)
 6193 
 6194 2004-09-07 (bug fix)[1016167] [after] overwrites its imports (kenny)
 6195 
 6196 2004-09-08 (bug fix) fixed [clock format 0 -format %k] (kenny)
 6197 
 6198 2004-09-09 (bug fix)[560297] fixed broken [namespace forget] logic (porter)
 6199 
 6200 2004-09-09 (bug fix)[1017299] fixed [namespace import] cycle prevention
 6201 (porter)
 6202 
 6203 2004-09-10 (performance) $x[set x {}] is now fast [K $x [set x {}]] (sofer)
 6204 
 6205 2004-09-10 (bug fix)[868489] better control over int <-> wideInt
 6206 (fellows,kenny)
 6207 
 6208 2004-09-10 (bug fix)[1025359] POSIX errorCode from wide seeks (kupries,fellows)
 6209 
 6210 2004-09-10 (bug fix)[707104,1026493] fix [rename] of [interp alias] (porter)
 6211 
 6212 2004-09-18 (bug fix)[868467] fix [expr 5>>32] => 0, not 5 (hintermayer,fellows)
 6213 
 6214 2004-09-21 (bug fix) consistent errorinfo from [namespace eval x error foo bar]
 6215 		and [namespace eval c {error foo bar}] (porter)
 6216 
 6217 2004-09-22 (feature change) syntax errors not reported at compile time;
 6218 		deferred to runtime.  Support [return -errorline]. (porter)
 6219 
 6220 2004-09-23 (bug fix)[1016726] fix `make clean` in static config
 6221 (leitgeb,dejong)
 6222 
 6223 2004-09-22 (feature change) report all compile errors at runtime (porter)
 6224 
 6225 2004-09-29 (bug fix)[1036649] syntax error in [subst] => buffer overflow
 6226 (sofer)
 6227 
 6228 2004-09-30 (bug fix)[1038021] save/restore error state: var traces (porter)
 6229 
 6230 2004-10-01 (performance) stackframe level values in internal reps (fellows)
 6231 
 6232 2004-10-01 (feature change)[1037235] auto-create [dict] key paths (fellows)
 6233 
 6234 2004-10-04 (bug fix)[884830] eq and ne parse in expr (fellows)
 6235 
 6236 2004-10-05 (reform) errorInfo, errorCode management (porter)
 6237 	*** POTENTIAL INCOMPATIBILITY for traces on those vars ***
 6238 
 6239 2004-10-06 (feature change)[1041072] re-bless and enhance Tcl_AppendResult
 6240 (dkf)
 6241 
 6242 2004-10-06 (reform) more robust interp result appends (porter)
 6243 => dde 1.3.1
 6244 => registry 1.1.5
 6245 
 6246 2004-10-06 (reform) re-write of [glob] guts (fellows)
 6247 
 6248 2004-10-07 (reform)[925620] improved platform split of VFS code (darley)
 6249 
 6250 2004-10-08 (new feature)[TIP 201] "in" and "ni" expr operators (fellows)
 6251 
 6252 2004-10-08 (new feature)[TIP 212] [dict update]; [dict with] (fellows)
 6253 
 6254 2004-10-08 (bug fix)[954263] case insensitive [file exec] for Win
 6255 (hobbs,darley)
 6256 
 6257 2004-10-14 (performance) [info commands/globals/procs/vars $pattern] faster
 6258                 when $pattern is trivial (fellows)
 6259 
 6260 2004-10-14 (new feature)[TIP 217] [lsort -indices] (salsman,fellows)
 6261 
 6262 2004-10-24 (reform) replaced bit flag values with macros for Var handling
 6263 	*** POTENTIAL INCOMPATIBILITY for accesses to Var internals ***
 6264 
 6265 2004-10-26 (new feature)[1054370] install msgcat, http, tcltest as TM's
 6266 (porter)
 6267 
 6268 2004-10-26 (bug fix)[767676] negative PIDs with pipes (giese,gravereaux)
 6269 
 6270 2004-10-27 (bug fix)[731778] stop critical section leaks
 6271 (mistachkin,gravereaux)
 6272 
 6273 2004-10-27 (bug fix)[926088] -load option to find tested packages (gravereaux)
 6274 
 6275 2004-10-28 (bug fix)[1030548] restore the --enable-symbols --enable-threads
 6276 build on Win (mistachkin,kenny,kupries)
 6277 
 6278 2004-10-29 (bug fix)[1055673] fix command line syntax error message (porter)
 6279 => tcltest 2.2.7
 6280 
 6281 2004-10-30 (bug fix)[926106] fix [file mtime] DST anomaly (kenny)
 6282 
 6283 2004-10-31 (bug fix)[1057461] fix [info globals ::varName] (fellows)
 6284 
 6285 2004-11-02 (bug fix)[761471] fix [expr {NaN == NaN}] (sofer)
 6286 
 6287 2004-11-02 (bug fix)[1017151] misleading errorInfo after tests (seeger,porter)
 6288 
 6289 2004-11-03 (bug fix)[527164] preserve errorinfo from var traces (porter)
 6290 
 6291 2004-11-08 (bug fix){947693] Made -blocking option of channel during [close]
 6292 consistent on Windows with Unix (gravereaux)
 6293 	*** POTENTIAL INCOMPATIBILITY ***
 6294 
 6295 2004-11-11 (bug fix)[1034337] recursive file delete, MacOSX (steffen)
 6296 
 6297 2004-11-12 (new feature)[TIP 221] [interp bgerror] (porter)
 6298 
 6299 2004-11-12 (new feature)[TIP 226] Tcl_(Save|Restore|Discard)InterpState
 6300 (porter)
 6301 
 6302 2004-11-12 (new feature)[TIP 227] Tcl_(Get|Set)ReturnOptions (porter)
 6303 
 6304 2004-11-12 (bug fix)[1004065] stop crash when TCL_UTF_MAX==6 (hobbs,porter)
 6305 
 6306 2004-11-15 (bug fix)[10653678] [trace variable],[trace remove] interop (porter)
 6307 
 6308 2004-11-16 (bug fix)[1067709] crash in [fconfigure -ttycontrol] (hobbs)
 6309 
 6310 2004-11-18 (new feature) configure options --enable-man-suffix (max)
 6311 
 6312 2004-11-22 (bug fix)[1030465] Improve HAVE_TYPE_OFF64_T check (dejong)
 6313 
 6314 2004-11-22 (bug fix)[1043129] Fixed the treatment of backslashes in file
 6315 join on Windows (darley)
 6316 
 6317 2004-11-22 (bug fix)[976438] Move init.tcl search path construction to
 6318 tclInit (porter)
 6319 
 6320 2004-11-24 (bug fix)[1072654] Fixed segfault in info vars trivial
 6321 matching branch (new in 8.4.8) (porter)
 6322 
 6323 2004-11-24 (bug fix)[1001325, 1071701] Fixed readdir_r detection and usage
 6324 (dejong, kenny, porter)
 6325 
 6326 2004-11-24 (bug fix)[1071807] Fixed all uses of 'select' to use standard
 6327 macros rather than older bit-whacking style (kenny)
 6328 
 6329 2004-11-26 (bug fix)[1073524] Simplify the code to check for correctness of
 6330 strstr, strtoul and strtod on unix (fellows)
 6331 
 6332 2004-11-26 (bug fix)[1072136] Remove file normalize on tcl_findLibrary
 6333 search path uniqification added in 8.4.8 (porter)
 6334 
 6335 2004-11-30 (bug fix)[976520] Rework startup/initialization of the Tcl
 6336 library, encoding search initialization, and Tcl_FindExecutable structure.
 6337 [tclInit] no longer driven by the value of $::tcl_libPath (TCLLIBPATH).
 6338 (porter)
 6339 	*** POTENTIAL INCOMPATIBILITY : makes encoding names case sensitive
 6340 	    on Windows, where they have been case insensitive ***
 6341 
 6342 2004-12-02 (bug fix)[1074671] Ensure tilde paths are not returned specially
 6343 by 'glob' (darley)
 6344 
 6345 Doc improvements [759545,926590,935853,1017072,1018486,1022527,1027849,
 6346 	1032243,1047928,1048005,1058446,1062647,1065732,1073334,etc.]
 6347 Test suite expansion [1036649,1001997,etc.]
 6348 
 6349 --- Released 8.5a2, December 7, 2004 --- See ChangeLog for details ---
 6350 
 6351 2004-12-13 (bug fix)[1083082] encoding memory leaks (ade,porter)
 6352 
 6353 2004-12-13 (bug fix)[1082349] restored C++ extension support (porter)
 6354 
 6355 2004-12-14 (bug fix)[1081541] workaround automake-ism "$U" (porter)
 6356 
 6357 2004-12-15 (new feature) CallFrames on execution, not C, stack (sofer)
 6358 
 6359 2004-12-16 (bug fix)[1085023] [interp limit] support in [vwait], etc. (fellows)
 6360 
 6361 2004-12-29 (bug fix)[1090413] make [clock scan 0030] work (morian,kenny)
 6362 
 6363 2004-12-29 (bug fix)[1092789] make [clock scan 10000] work (porter,kenny)
 6364 
 6365 2004-12-29 (platform support)[1092952,1091967] MSVC7, gcc OPT compiles (hobbs)
 6366 
 6367 2005-01-06 (performance)[1020491] [http::mapReply] (fellows)
 6368 => http 2.5.1
 6369 
 6370 2005-01-09 (bug fix)[1095909] stopped use of readdir_r (english)
 6371 
 6372 2005-01-10 (enhancement)[1081595] stopped use of TCL_DBGX (english)
 6373 
 6374 2005-01-17 (bug fix)[1100542] [glob] of Windows shares (schar,darley)
 6375 
 6376 2005-01-19 (new feature)[TIP 235] C API for ensembles (fellows)
 6377 
 6378 2005-01-21 (new feature)[TIP 233] virtual time (kupries)
 6379 
 6380 2005-01-25 (bug fix)[1101670] [auto_reset] update for [namespace] (porter)
 6381 ***POTENTIAL INCOMPATIBILITY***
 6382 May cause re-[source]-ing of files that have not anticipated that before.
 6383 
 6384 2005-01-27 (new feature)[TIP 218] Tcl_Channel API update for threads (kupries)
 6385 
 6386 2005-01-27 (bug fix)[1109484] Tcl_Expr* updates for Tcl_WideInt (hobbs)
 6387 
 6388 2005-01-28 (platform support)[1021871] Solaris gcc 64-bit support (hobbs)
 6389 
 6390 2005-02-10 (bug fix)[1119369] Tcl_EvalObjEx: avoid shimmer loss of List intrep
 6391 (sofer,macdonald)
 6392 
 6393 2005-02-11 (platform support) correct gcc builds for AIX-4+, HP-UX-11 (hobbs)
 6394 
 6395 2005-02-24 (bug fix)[1119798] prevent [source $directory] (porter,mpettigr)
 6396 => tcltest 2.2.8
 6397 
 6398 2005-03-10 (bug fix)[1153871] bad ClientData cast (porter,victorovich)
 6399 
 6400 2005-03-15 (platform support) OpenBSD ports patch (thoyts)
 6401 
 6402 2005-03-18 (bug fix)[1115904] restore recursion limit in direct eval (porter)
 6403 
 6404 2005-03-24 (bug fix) stop conflict between Tcltest and Thread packages (porter)
 6405 
 6406 2005-03-29 (platform support) allow msys builds without cygwin (hobbs)
 6407 
 6408 2005-04-01 (internal change)[1158008]  internal rep of "list" Tcl_Obj's
 6409 now uses a refcounted struct (sofer)
 6410 ***POTENTIAL INCOMPATIBILITY***
 6411 For any code that goes poking into the internals of "list" Tcl_Obj's
 6412 
 6413 2005-04-05 (performance)[1174551] Tcl_DecrRefCount of Tcl_Obj "chains" (sofer)
 6414 
 6415 2005-04-08 (performance)[1077262] better Tcl_Encoding cache lifetimes (porter)
 6416 
 6417 2005-04-10 (bug fix)[1180368] [interp invokehidden] mem leak (kenny,porter)
 6418 
 6419 2005-04-12 (performance)[1177363] startup encoding file scan (porter)
 6420 
 6421 2005-04-12 (performance)[1182459] [clock format] (kenny)
 6422 
 6423 2005-04-13 (bug fix) min buffer size dropped from 10 to 1 byte (gravereaux)
 6424 
 6425 2005-04-16 (bug fix)[1178445] fix memory waste at thread exit (vasiljevic)
 6426 
 6427 2004-04-16 (bug fix)[1084111] [array names] memory leak (ade,sofer)
 6428 
 6429 2005-04-19 (bug fix)[1185933] [clock] init clobbered global vars (ring,kenny)
 6430 
 6431 2005-04-19 (new feature) [::tcl::unsupported::EncodingDirs] - unsupported
 6432 command to set search path for encoding files (porter)
 6433 
 6434 2005-04-20 (bug fix)[1090869] Tcl_GetInt accept 0x80000000, 64-bit
 6435 (porter,singh)
 6436 
 6437 2005-04-22 (bug fix)[1187123] [string is boolean] respect EIAS (porter)
 6438 
 6439 2005-04-25 (enhancement) update to tzdata2005i (kenny)
 6440 
 6441 2005-04-25 (platform support) builds on Mac OS X 10.1 (steffen)
 6442 
 6443 2005-04-27 (new feature)[TIP 183] [open $f {... BINARY ...}] (porter)
 6444 
 6445 2005-04-29 (new feature)[TIP 176] simple index arithmetic (porter)
 6446 
 6447 2005-05-06 (platform support) x86_64 Solarix cc and Solaris 10 builds (hobbs)
 6448 
 6449 2005-05-10 (bug fix)[1198892] [expr {i**0}] error (kaitschu,markus)
 6450 
 6451 2005-05-10 (new feature)[TIP 132] floating-point conversion to string (kenny)
 6452 ***POTENTIAL INCOMPATIBILITY***
 6453 For scripts that rely on (tcl_precision==12) number formatting
 6454 
 6455 2005-05-10 (new feature)[TIP 232] math functions as commands (kenny)
 6456 ***POTENTIAL INCOMPATIBILITY***
 6457 Tcl_GetMathFuncInfo functioning is reduced; routine is now deprecated
 6458 
 6459 2005-05-13 (feature removed) TCL_NO_MATH compiler directive (porter)
 6460 
 6461 2005-05-14 (platform support) Mac OSX: configurable CoreFoundation API
 6462 (steffen)
 6463 
 6464 2005-05-14 (platform support) Mac OSX: use realpath when threadsafe (steffen)
 6465 
 6466 2005-05-17 (feature removed) Tcl_ObjType's "list", "procbody", "index",
 6467 "ensembleCommand", "localVarName", "levelReference, "boolean" are no
 6468 longer registered (porter)
 6469 ***POTENTIAL INCOMPATIBILITY***
 6470 For any callers of Tcl_GetObjType on those strings
 6471 
 6472 2005-05-20 (bug fix)[1201589] boolean literal prefix in expressions (porter)
 6473 
 6474 2005-05-24 (platform support) Darwin build support merged into unix (steffen)
 6475 
 6476 2005-05-24 (new feature)[1202209] Mac OSX: support [load] of .bundle binaries
 6477 Can support [load] from memory as well (steffen)
 6478 
 6479 2005-05-24 (new feature)[1202178] [time] returns non-integer result (steffen)
 6480 
 6481 2005-05-25 (new feature)[TIP 182] [expr {bool(...)}] (mistachkin,porter)
 6482 
 6483 2005-05-30 (new feature)[TIP 229] [namespace path] (fellows)
 6484 
 6485 2005-05-31 (bug fix)[1082283] Unix: notifier thread now joinable (vasiljevic)
 6486 
 6487 2005-06-01 (new feature)[TIP 241] -nocase: lsort, lsearch, switch (mistachkin)
 6488 
 6489 2005-06-01 (bug fix)[1209759] "return TCL_RETURN;" could cause panic (porter)
 6490 
 6491 Documentation improvements [1075433,1085127,1117017,1124160,1149605,etc.]
 6492 
 6493 --- Released 8.5a3, June 4, 2005 --- See ChangeLog for details ---
 6494 
 6495 2005-06-06 (bug fix)[1213678] Windows/gcc: crash in stack.test (kenny)
 6496 
 6497 2005-06-07 (new feature)[TIP 208] [chan] and [chan truncate] (fellows)
 6498 
 6499 2005-06-07 (revert) Restored registration of "procbody" Tcl_ObjType (porter)
 6500 Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
 6501 
 6502 2005-06-13 (bug fix)[1217375,1219176] [file mkdir] race (diekhans,darley)
 6503 
 6504 2005-06-14 (bug fix)[1220058] [namespace delete] crash (duquette,fellows)
 6505 
 6506 2005-06-17 (bug fix)[1221395] Tcl_LimitSetTime able to break [vwait] (fellows)
 6507 
 6508 2005-06-18 (bug fix)[1154163] [format %h] on 64-bit OS's (kraft,fellows)
 6509 
 6510 2005-06-21 (bug fix)[1201035,1224585] execution trace crashes (porter)
 6511 
 6512 2005-06-21 (bug fix)[1194458] Windows: [file split] (kenny,porter)
 6513 
 6514 2005-06-22 (bug fix)[1225727] Windows: pipe finalization crash (kenny)
 6515 
 6516 2005-06-22 (bug fix)[1225571] Windows: [file pathtype] buffer overflow (thoyts)
 6517 
 6518 2005-06-22 (bug fix)[1225044] Windows: UMR in pipe close (kenny)
 6519 
 6520 2005-06-23 (bug fix)[1225957] Windows/gcc: crashes in assembler code (kenny)
 6521 
 6522 2005-06-24 (bug fix) make Tcl_Preserve safe in Tk exit handlers (kenny)
 6523 
 6524 2005-07-01 (bug fix)[1222872] notifier spurious wake-up protection (vasiljevic)
 6525 
 6526 2005-07-05 (bug fix)[1230597] allow idempotent [namespace import] (porter)
 6527 
 6528 2005-07-15 (bug fix)[1237907] localtime() => NULL => crash (kenny)
 6529 
 6530 2005-07-21 (dropped support) IRIX 4, RISCos, Ultrix, and ancient BSD (kenny)
 6531 ***POTENTIAL INCOMPATIBILITY***
 6532 
 6533 2005-07-22 (enhancement)[1237755] 8.4 features in script library (fradin,porter)
 6534 
 6535 2005-07-24 (new feature) configure macros SC_PROG_TCLSH, SC_BUILD_TCLSH (dejong)
 6536 2005-07-26 (bug fix)[1047286] cmd delete traces during namespace delete (porter)
 6537 
 6538 2005-07-26 (new unix feature)[1231015] ${prefix}/share on ::tcl_pkgPath (dejong)
 6539 ***POTENTIAL INCOMPATIBILITY***
 6540 
 6541 2005-07-27 (bug fix)[1214462] [unknown] can return exceptions (porter)
 6542 
 6543 2005-07-27 (new feature) value of ::tcl_precision now kept per-thread (porter)
 6544 ***POTENTIAL INCOMPATIBILITY***
 6545 
 6546 2005-07-28 (unix bug fix)[1245953] O_APPEND for >> redirection (fellows)
 6547 
 6548 2005-07-29 (bug fix)[1247135] [info globals] return only existing vars (fellows)
 6549 
 6550 2005-07-30 (new Darwin feature) TCL_LOAD_FROM_MEMORY configuration (steffen)
 6551 
 6552 2005-08-05 (bug fix)[1241572] correct [expr abs($LONG_MIN)] (kenny)
 6553 
 6554 2005-08-05 (Solaris bug fix)[1252475] recognize cp1251 encoding (wagner,fellows)
 6555 
 6556 2005-08-11 (config options) eliminated USE_THREAD_STORAGE option (kenny)
 6557 
 6558 2005-08-23 (toolchain support) autoconf-2.59 now required (dejong)
 6559 
 6560 2005-08-24 (new feature)[TIP 219] reflected channels ([chan create]) (kupries)
 6561 
 6562 2005-08-25 (bug fix)[1267380] [lrepeat] buffer overflow prevention (fellows)
 6563 
 6564 2005-08-26 (bug fix) fix [namespace ensemble] crashes in Snit (fellows)
 6565 
 6566 2005-08-29 (bug fix)[1275043] restore round() away from zero (kenny)
 6567 
 6568 2005-08-29 (bug fix)[1189657] correct [tcl::tm::roots] (porter)
 6569 
 6570 2005-09-07 (bug fix)[1283976] invalid [format %c -1] result (porter)
 6571 
 6572 2005-09-08 (new feature)[1242844][TIP 254] new types for Tcl_LinkVar (fellows)
 6573 
 6574 2005-09-07 (toolchain support) deprecate TCL_VARARGS*; stdarg.h assumed (porter)
 6575 ***POTENTIAL INCOMPATIBILITY***
 6576 
 6577 2005-09-15 (RHEL bug fix)[1287638] support open >2GB files RHEL 3 (palan)
 6578 
 6579 2005-09-08 (new feature)[TIP 255] [expr min()] and [expr max()] (hobbs)
 6580 
 6581 2005-09-30 (bug fix)[1306162] $argv encoding and list formatting (porter)
 6582 
 6583 2005-10-04 (bug fix)[1067708] [fconfigure -ttycontrol] leak (hobbs)
 6584 
 6585 2005-10-04 (bug fix)[1182373] [http::mapReply] update to RFC 3986 (aho,hobbs)
 6586 => http 2.5.2
 6587 
 6588 2005-10-04 (HPUX bug fix)[1204237] shl_load() and DYNAMIC_PATH (collins,hobbs)
 6589 
 6590 2005-10-05 (bug fix)[979640] buffer overrun mixing putenv(), ::env (bold,hobbs)
 6591 
 6592 2005-10-08 (new feature)[TIP 237] unlimited range for integers (kenny,porter)
 6593 ***POTENTIAL INCOMPATIBILITY*** for any code that relies on implicit truncation
 6594 of integer calculations to the range of a C long
 6595 
 6596 2005-10-14 (platform support)[1256937] MSVC++ static builds (thoyts)
 6597 
 6598 2005-10-19 (bug fix)[1331475] [dict append] crash (bills,sofer)
 6599 
 6600 2005-10-20 (bug fix)[1333036] [lset] shared sublist handling (sofer)
 6601 
 6602 2005-10-23 (bug fix)[1335006] memleack in [glob] (melbardis,darley)
 6603 
 6604 2005-10-23 (bug fix)[1325803] Win: [file stat] on links (bonilla,darley)
 6605 
 6606 2005-11-01 (bug fix)[1337941] Tcl_TraceCommand() -> crash (devilliers,porter)
 6607 
 6608 2005-11-02 (platform support)[1256937] MSVC 8 support (thoyts)
 6609 
 6610 2005-11-03 (new Win NT/XP feature) Unicode console support (kovalenko,thoyts)
 6611 
 6612 2005-11-04 (bug fix)[1337229,1338280] [namespace delete] / unset traces (sofer)
 6613 
 6614 2005-11-04 (enhancement) Korean timezone abbreviations (kenny)
 6615 
 6616 2005-11-04 (platform support)[1163896] LynxOS [load] (heidibr)
 6617 
 6618 2005-11-04 (bug fix)[1334947] value refcount error in var setting (sofer)
 6619 
 6620 2005-11-04 (Win enhancement)[1267871] extended exit codes (newman,thoyts)
 6621 
 6622 2005-11-07 (bug fix)[1348775] unset trace memory leak (sofer)
 6623 
 6624 2005-11-08 (bug fix)[1162286] [package require] checks that the script
 6625 registered by [package ifneeded] provides the version it claims (lavana,porter)
 6626 *** POTENTIAL INCOMPATIBILITY ***
 6627 
 6628 2005-11-09 (bug fix)[1350293,1350291] [after $negative $script] fixed (kenny)
 6629 
 6630 2005-11-12 (bug fix)[1352734,1354540,1355942,1355342] [namespace delete]
 6631 issues with [namespace path] and command delete traces (sofer,fellows)
 6632 
 6633 2005-11-18 (bug fix)[1358369] URL parsing standards compliance (wu,fellows)
 6634 => http 2.5.2
 6635 
 6636 2005-11-18 (revert) Restored registration of "list" Tcl_ObjType (porter)
 6637 Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
 6638 
 6639 2005-11-18 (bug fix)[1359094] Tclkit crash (thoyts, kupries)
 6640 
 6641 2005-11-20 (bug fix)[1091431] Tcl_InitStubs failure crashes wish (english)
 6642 
 6643 2005-11-27 (platform support) Darwin 64bit, Tiger copyfile(), and
 6644 Max OSX universal binaries support (steffen)
 6645 
 6646 2005-11-28 (bug fix) [clock] DST transition error (mackerras,kenny)
 6647 
 6648 2005-11-29 (bug fix)[1366683] [lsearch -regexp] backrefs (cleverly,fellows)
 6649 
 6650 2005-11-30 (performance) recoded portions of [clock] in C (kenny)
 6651 
 6652 2005-11-30 (enhancement) improved bytecode compiling of [switch] (fellows)
 6653 *** POTENTIAL INCOMPATIBILITY ***
 6654 For loading bytecode compiled and saved by earlier 8.5alpha releases
 6655 
 6656 2005-12-05 (Darwin bug fix)[1034337] NFS recursive file delete (steffen)
 6657 
 6658 2005-12-08 (platform support) Win x64 build (hobbs)
 6659 
 6660 2005-12-09 (bug fix)[1374778] [lsearch -start $pastEnd] => -1 (fellows)
 6661 
 6662 2005-12-12 (bug fix)[1377619] configure syntax error exposed in bash-3.1 (hobbs)
 6663 
 6664 2005-12-13 (bug fix)[1379349] [dict for] CoW error (ring,hippler,fellows)
 6665 
 6666 2005-12-18 (bug fix)[1382528] [dict for {k v} {} {}] crash (kovalenko,fellows)
 6667 
 6668 2005-12-27 clock tzdata updated to Olson's tzdata2005r (kenny)
 6669 
 6670 2005-12-27 libtommath updated to release 0.37 (kenny)
 6671 
 6672 2006-01-09 (bug fix)[1480572] [info level $l] => "namespace inscope" (porter)
 6673 
 6674 2006-01-11 (compat support)[1397843] when ::errorInfo is traced, fall back to
 6675 old pattern of stack trace construction (porter).
 6676 Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2004-10-05.
 6677 
 6678 2006-01-12 (bug fix)[1366227] Win: [file stat] sharing violation (darley)
 6679 
 6680 2006-01-23 (bug fix)[1410553] Tcl_GetRange Unicode confusion (twylite,spjuth)
 6681 
 6682 2006-01-23 (bug fix)[1412695] args handling in precompiled procs (traum,sofer)
 6683 
 6684 2006-02-01 (new feature)[1275435][TIP 250] [namespace upvar] (sofer)
 6685 
 6686 2006-02-01 (new feature)[958222][TIP 181] [namespace unknown] (madden)
 6687 
 6688 2006-02-01 (new feature)[944803][TIP 194] [apply] (mistachkin)
 6689 
 6690 2006-02-08 (new feature)[1413934][TIP 258] [encoding dirs], etc. (porter)
 6691 
 6692 2006-02-09 (new feature)[1413115][TIP 215] auto-init [incr] (leitgeb)
 6693 
 6694 2006-03-02 (bug fix)[1379287] norm of paths with /../ back to root (porter)
 6695 
 6696 2006-03-03 (compat support) Restored registration of a "boolean" Tcl_ObjType
 6697 (porter)
 6698 Reduces the ***POTENTIAL INCOMPATIBILITY*** from 2005-05-17.
 6699 
 6700 2006-03-06 (bug fix)[1439836,1444291] fix TCL_EVAL_{GLOBAL,INVOKE} handling
 6701 when auto-loading or exec traces are present (porter)
 6702 
 6703 2006-03-10 (bug fix)[1437595] Win socket finalize with threads (vasiljevic)
 6704 
 6705 2006-03-13 (revert 2005-07-26 change) ${prefix}/share on ::tcl_pkgPath (porter)
 6706 
 6707 2006-03-14 (bug fix)[1448251] TCLX.y_TM_PATH handling (noble, kupries)
 6708 
 6709 2006-03-14 (bug fix)[768659] pipeline error when last command missing (kupries)
 6710 
 6711 2006-03-18 (bug fix)[1193497] Win porting of [file writable] (darley,vogel)
 6712 
 6713 2006-03-18 (bug fix)[1084705] [glob -nocomplain] silence empty result only,
 6714 no other errors (darley)
 6715 ***POTENTIAL INCOMPATIBILITY***
 6716 
 6717 2006-03-21 (platform enhancement)[823329] HFS globbing support (steffen)
 6718 
 6719 2006-03-23 (platform support) updated tcl.spec file (max)
 6720 
 6721 2006-03-28 (bug fix)[1064247] BSD: path normalization with realpath() (steffen)
 6722 
 6723 2006-04-03 (bug fix)[1462248] crash reading utf-8 chars spanning multiple
 6724 buffers at end of file (kraft,kupries)
 6725 
 6726 2006-04-05 (bug fix)[1464039] Tcl_GetIndexFromObj: empty key (fellows)
 6727 
 6728 2006-04-05 (bug fix) overdue dde, registry  patchelevel increments (porter)
 6729 => dde 1.3.2
 6730 => registry 1.2
 6731 
 6732 2006-04-06 (bug fix)[1457515] TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
 6733 removed (steffen)
 6734 
 6735 2006-04-11 (bug fix)[1458266] enter/enterstep trace interference (leunissen)
 6736 
 6737 2006-04-12 (feature change)[1376892] revised definition of [:print:] (fellows)
 6738 
 6739 (platform support) Use of _ANSI_ARGS_ purged.  ANSI compiler required (fellows)
 6740 
 6741 Documentation improvements [1211078,1190891,1292427,1277503,1104682,1359183,
 6742 1415725,666770]
 6743 
 6744 --- Released 8.5a4, April 27, 2006 --- See ChangeLog for details ---
 6745 
 6746 2006-05-04 (bug fix)[1480509] srand() accept wide input (porter,afredd)
 6747 
 6748 2006-05-05 (bug fix)[1481986] interactive Tcl_Main blocks main loop (porter,lin)
 6749 
 6750 2006-05-13 (bug fix)[1482718] proc re-compile: preserve the previous
 6751 bytecode while references still on the stack (porter,ryazanov)
 6752 
 6753 2006-05-27 (bug fix)[923072] Darwin: made unthreaded CoreFoundation notifier
 6754 naked-fork safe on Tiger (steffen)
 6755 
 6756 2006-06-20 (internal change) Dropped the internal routines used to hook into
 6757 filesystem operations back in the pre-Tcl_Filesystem days. (porter)
 6758 ***POTENTIAL INCOMPATIBILITY***
 6759 For extensions and programs that have never migrated to the supported Tcl 8.4
 6760 interface for virtual filesystems
 6761 
 6762 2006-07-05 (enhancement) Expression parser rewrite avoids stack overflow,
 6763 reduces from O(N^2) to O(N) complexity, and greatly improves syntas error
 6764 messages (porter)
 6765 ***POTENTIAL INCOMPATIBILITY***
 6766 For any code relying on exact error messages.
 6767 
 6768 2006-07-20 (platform support) Mac OS X weak linking (steffen)
 6769 
 6770 2006-07-20 (bug fix) Darwin: execve() works iff event loop not yet run (steffen)
 6771 
 6772 2006-07-24 (bug fix)[1518166] Uninitialized Tcl_DString (afredd)
 6773 
 6774 2006-07-30 (bug fix)[1426279,1505383,1494664,1531530] [clock] fixes (kenny)
 6775 
 6776 2006-08-09 (bug fix)[1531184] [dict for {file stat} x {}] crash (fellows)
 6777 
 6778 2006-08-10 (bug fix)[1538262,1530474] code cleanup; optimizations (afredd)
 6779 
 6780 2006-08-18 (bug fix) intermittent failures in TclUnixWaitForFile() (steffen)
 6781 
 6782 2006-08-18 (platform support) Darwin x86_64 (steffen)
 6783 
 6784 2006-08-21 (bug fix)[1457797] Darwin 64-bit notifier hang (steffen)
 6785 
 6786 2006-08-21 (bug fix) Darwin: recursively called event loop (steffen)
 6787 
 6788 2006-08-21 (enhancement) Darwin: nanosec resolution clicks and [time] (steffen)
 6789 
 6790 2006-08-28 (bug fix)[1547681] TclFormatObj count arguments (mistachkin,porter)
 6791 
 6792 2006-08-28 (bug fix) stack.test failure on FreeBSD (mistachkin)
 6793 
 6794 2006-08-30 (bug fix)[1548263] filesystem segfaults (hobbs,mccormack)
 6795 
 6796 2006-08-31 (bug fix)[1541274] [expr {sqrt(-1)}] => -NaN (suchenwirth,porter)
 6797 
 6798 2006-09-06 (bug fix)[999544] use of MT-safe system calls (vasiljevic)
 6799 
 6800 2006-09-10 (platform support) Darwin: msgcat use CFLocale (steffen)
 6801 => msgcat 1.4.2
 6802 
 6803 2006-09-10 (new feature) tcltest option: -verbose line (steffen)
 6804 => tcltest 2.3a1
 6805 
 6806 2006-09-19 (bug fix)[1555271,1561260] Several ** operator bugs (porter)
 6807 
 6808 2006-09-22 (bug fix)[1562528] NULL terminates variadic calls (fellows,ryazanov)
 6809 
 6810 2006-09-22 (new feature)[1520767][TIP 268] [package] alpha/beta version;
 6811 [package require] ranges, [package prefer] selection mode (kupries)
 6812 
 6813 2006-09-26 (platform support) MSVC8 AMD64 support (thoyts)
 6814 
 6815 2006-09-27 (bug fix)[1567222] bignum << errors (porter)
 6816 
 6817 2006-09-30 (enhancement)[1190441] quiet no-op [history] (sofer)
 6818 
 6819 2006-10-04 clock tzdata updated to Olson's tzdata2006m (kenny)
 6820 
 6821 2006-10-05 (bug fix)[1570718] make [lappend $nonList] complain (sofer,virden)
 6822 
 6823 2006-10-05 (bug fix)[1122671] alignment fixes in unicode encoding routines
 6824 (hobbs,staplin)
 6825 
 6826 2006-10-05 (enhancement) Allow "_" in Tcl Module filenames (kupries)
 6827 
 6828 2006-10-05 (new feature) [set ::http::strict 0] (default value is 1) to disable
 6829 URL validity checking against RFC 2986 (hobbs)
 6830 => http 2.5.3
 6831 
 6832 2006-10-06 (new feature)[1565751][TIP 275] [binary scan] unsigned (thoyts)
 6833 
 6834 2006-10-10 (bug fix)[1566526] crash cleaning up [namespace path] data (porter)
 6835 
 6836 2006-10-12 (bug fix)[1576006] better error messages from [interp alias] (sofer)
 6837 
 6838 2006-10-13 (platform support) get stack size on Darwin (steffen)
 6839 
 6840 --- Released 8.5a5, October 20, 2006 --- See ChangeLog for details ---
 6841 
 6842 2006-10-20 (configure change) Added autodetection for OS-supplied timezone
 6843 files (max)
 6844 
 6845 2006-10-23 (enhancement)[1577278] Ensure the Tcl call stack always has a
 6846 CallFrame, even at level 0 (sofer)
 6847 	*** POTENTIAL INCOMPATIBILITY for users of tclInt.h ***
 6848 
 6849 2006-10-23 (enhancement)[1577492] Tcl_PushCallFrame and [info level]
 6850 enhanced for ensemble rewrites (sofer)
 6851 	*** POTENTIAL INCOMPATIBILITY for [info level 0] on interp alias ***
 6852 
 6853 2006-11-02 (feature change)[TIP 293] Replace {expand} with {*} (hobbs)
 6854 	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
 6855 
 6856 2006-11-04 (new feature)[TIP 274] Exponentiation operator is right
 6857 associative (porter)
 6858 
 6859 2006-11-09 (new feature)[TIP 272] Added [lreverse] and [string reverse]
 6860 commands (fellows)
 6861 
 6862 2006-11-14 (new feature)[TIP 261] [namespace import] returns list of
 6863 imported commands (porter)
 6864 
 6865 2006-11-15 (new feature)[TIP 270] New C routines Tcl_ObjPrintf,
 6866 Tcl_AppendObjToErrorInfo, Tcl_Format, Tcl_AppendLimitedToObj,
 6867 Tcl_AppendFormatToObj, Tcl_AppendPrintfToObj (porter)
 6868 
 6869 2006-11-22 (feature change) Moved TCL_REG_BOSONLY from tcl.h to tclInt (porter)
 6870 
 6871 2006-11-22 (new feature)[TIP 269] Added [string is list] classification
 6872 command (mistackin, fellows)
 6873 
 6874 2006-11-25 (new feature)[TIP 174] Added commands corresponding to most
 6875 expr operators in ::tcl::mathop (fellows)
 6876 
 6877 2006-11-26 (platform support)[1230558] --enable-64bit on more systems (steffen)
 6878 
 6879 2006-11-27 (bug fix)[1602208] Fix 64-bit handling of select() on unix where
 6880 fd was greater than 32 (fontaine, kenny)
 6881 
 6882 2006-11-28 (new feature)[TIP 280] Added [info frame] command for more
 6883 Tcl-level debugging information (kupries)
 6884 
 6885 2006-12-01 (feature change)[TIP 298] Change Tcl_GetBignumAndClearObj to
 6886 Tcl_TakeBignumFromObj (porter)
 6887 
 6888 2006-12-01 (new feature)[TIP 287] Added [chan pending] subcommand (cleverly)
 6889 
 6890 2006-12-01 (new feature)[TIP 299] Added isqrt() expr operator (kenny)
 6891 
 6892 2006-12-04 (new feature)[TIP 267] Added -ignorestderr option to exec (fellows)
 6893 
 6894 2006-12-05 (new feature)[TIP 291] ::tcl_platform(pointerSize) key (kupries)
 6895 
 6896 2007-01-11 (configure change) Remove "-Wconversion" from deflt CFLAGS (english)
 6897 
 6898 2007-01-25 (configure change) Ensure CPPFLAGS env var is used when set (steffen)
 6899 
 6900 2007-02-19 (configure change) Use SHLIB_SUFFIX=".so" on HP-UX IA64 (was
 6901 ".sl") (hobbs)
 6902 
 6903 2007-02-20 (bug fix)[1479814] Handle Windows NT \\?\... extended paths (thoyts)
 6904 
 6905 2007-03-01 (bug fix)[1671138] Fix infinite loop in compiled foreach with an
 6906 empty list (fellows)
 6907 
 6908 2007-03-07 (enhancement) Improved Windows time zone tables to handle new US
 6909 DST rules (kenny)
 6910 
 6911 2007-03-09 (enhancement) Improved Y2038 compliance of zoneinfo files (kenny)
 6912 
 6913 2007-04-02 (enhancement) Added bytecode compilation for global, variable,
 6914 upvar and namespace upvar (sofer)
 6915 
 6916 2007-04-20 (bug fix) Improve clock localization for Japanese locale (kenny)
 6917 
 6918 2007-04-20 (enhancement) Document Tcl_SetNotifier & Tcl_ServiceModeHook (kenny)
 6919 
 6920 2007-04-23 (bug fix) fts_open() crash on 64bit Darwin 8 or earlier (steffen)
 6921 
 6922 --- Released 8.5a6, April 25, 2007 --- See ChangeLog for details ---
 6923 
 6924 2007-04-30 (bug fix)[1705778] many valgrind-detected leaks corrected
 6925 
 6926 2007-05-01 (bug fix)[1710709] leak in [string map] (porter)
 6927 
 6928 2007-05-02 (bug fix)[1710707] leaks in filesystem paths (mistachkin,kenny)
 6929 
 6930 2007-05-18 (feature change) {expand} syntax support removed. (porter)
 6931 	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
 6932 
 6933 2007-05-29 (bug fix)[1712723] Joinable thread death on 64-bit (virden,hobbs)
 6934 
 6935 2007-05-30 (feature change)[1725186] When expanded literals are parsed,
 6936 (example: {*}{1 2 3}), TCL_TOKEN_EXPAND_WORD token is no longer returned.
 6937 Tokens reflecting the expansion are returned instead. (porter)
 6938 	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
 6939 
 6940 2007-06-06 (platform support) Darwin: add plist to tclsh (steffen)
 6941 
 6942 2007-06-12 (enhancement) [info] is now a [namespace ensemble] (fellows)
 6943 
 6944 2007-06-20 (enhancement) better `make html` results (hobbs)
 6945 
 6946 2007-06-21 (feature change)[1740962] leave traces created during execution
 6947 of traced command do not fire (sofer)
 6948 	*** POTENTIAL INCOMPATIBILITY ***
 6949 
 6950 2007-06-23 (bug fix) Darwin: prevent post-fork() abort() (steffen)
 6951 
 6952 2007-06-27 (bug fix)[1743941] Infinite loop in Tcl_CreateTrace traces (porter)
 6953 
 6954 2007-06-29 (enhancement) Tcl_Alloc alignment on Darwin (steffen)
 6955 
 6956 2007-06-30 (bug fix)[1726873] crash in thread sync objects (vasiljevic,twylite)
 6957 
 6958 2007-06-30 (bug fix)[1717186] [lsort -command \{ $l] leak (afredd,fellows)
 6959 
 6960 2007-07-05 (bug fix)[1743676] no command named "" error message (porter,virden)
 6961 
 6962 2007-07-11 (bug fix)[1752146] [while 1 {}] & [interp limit] on commands (sofer)
 6963 
 6964 2007-07-31 (bug fix)[681877] tcl_platform(user) from system, not env (fellows)
 6965 
 6966 2007-07-31 (enhancement)[1750051] space efficiency of Tcl variables (sofer)
 6967 	*** POTENTIAL INCOMPATIBILITY for C code that accesses internal
 6968 	Tcl structs Var, Bytecode, Namespace, or CallFrame. ***
 6969 
 6970 2007-08-01 (enhancement)[1764318] word.tcl proc rewrites (petasis,fellows)
 6971 
 6972 2007-08-08 (bug fix)[1770224] [tcl::mathop::>> $big1 $big2] errors (porter)
 6973 
 6974 2007-08-14 (platform support) Darwin [load] from VFS on intel & 64bit (steffen)
 6975 
 6976 2007-08-15 (bug fix)[1773127] corrected open mode "a+" (rottman,fellows)
 6977 
 6978 2007-08-16 (bug fix)[1773040] ::errorInfo trace crash (janssen,porter)
 6979 
 6980 2007-08-16 (performance)[1564517] pre-compile constant expressions (porter)
 6981 
 6982 2007-08-21 (bug fix)[1775878] 'puts \' in interactive tclsh failed to move to
 6983 prompt for continuation line (porter)
 6984 
 6985 2007-08-25 (bug fix)[1781282] [clock scan] case senstivity (kenny)
 6986 
 6987 2007-08-25 (performance)[1767293] ** on native integer types (kenny)
 6988 
 6989 2007-09-03 clock tzdata updated to Olson's tzdata2007g (kenny)
 6990 
 6991 2007-09-06 (platform support) Darwin: drop support for Xcode 1.5 project, add
 6992 project for Xcode 3.0 (steffen)
 6993 
 6994 2007-09-08 (bug fix)[1786481] nested [dict update] crash (fellows)
 6995 
 6996 2007-09-08 (bug fix)[1710710] TclPtrSetVar leak (mistachkin,sofer)
 6997 
 6998 2005-09-09 (feature removed) Tcl_ObjType "nsName" no longer registered (porter)
 6999 	*** POTENTIAL INCOMPATIBILITY for Tcl_GetObjType("nsName") ***
 7000 
 7001 2007-09-10 (bug fix)[1740631] Linked variable unlink prevention (maros,hobbs)
 7002 
 7003 2007-09-11 (bug fix)[1786481] [dict update] stack management (sofer)
 7004 	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alpha bytecode only ***
 7005 
 7006 2007-09-11 (bug fix)[1578344] [package require -exact] 8.4 compat (porter)
 7007 	*** POTENTIAL INCOMPATIBILITY with previous 8.5 alphas only ***
 7008 
 7009 2007-09-11 (bug fix)[1772989,1071322] Support _, : in test constraints (porter)
 7010 => tcltest 2.3b1
 7011 
 7012 2007-09-11 (platform support) Windows AMD64 support (thoyts)
 7013 
 7014 2007-09-14 (enhancement)[1793984] DTrace provider for Tcl (steffen)
 7015 
 7016 2007-09-14 (bug fix)[1519940] surplus ns path invalidation (fellows,bauer)
 7017 
 7018 2007-09-15 (platform support) SunOS-5.1x link with cc, not ld (steffen)
 7019 
 7020 2007-09-17 (platform support)[1748251] Fix NetBSD link failures (english)
 7021 
 7022 (bug fix)[1066755] Several stack efficiency efforts increases recursion limit
 7023 on Windows to be larger than the default [interp recursionlimit] value
 7024 
 7025 --- Released 8.5b1, September 26, 2007 --- See ChangeLog for details ---
 7026 
 7027 2007-10-02 (bug fix)[1806422] proper [tcl::tm::path] autoload (porter)
 7028 
 7029 2007-10-02 (bug fix) Improve Tcl_DecrRefCount() robustness (staplin)
 7030 
 7031 2007-10-11 (bug fix)[1805887] [string is int -failindex] for 0o, 0b (porter)
 7032 
 7033 2007-10-15 (bug fix)[1813528] Tcl_ParseBraces read past buffer (mistachkin)
 7034 
 7035 2007-10-25 (bug fix)[1726873] intermittent crash in threads (vasiljevic)
 7036 
 7037 --- Released 8.5b2, October 26, 2007 --- See ChangeLog for details ---
 7038 
 7039 2007-10-27 (bug fix)[1821159] fixed broken compile on x86_64 (sofer)
 7040 
 7041 2007-10-27 (bug fix)[1810264] stop panic in RE lexer (fellows)
 7042 
 7043 2007-10-28 (enhancement)[1826906] Embed iso8859-1 encoding in libtcl (fellows)
 7044 
 7045 2007-11-01 (bug fix)[1808258] [string is ascii \000] (fellows)
 7046 
 7047 2007-11-05 (bug fix)[1823576] [fconfigure $serial -xchar \000] (cassof)
 7048 
 7049 2007-11-07 (performance)[1827996] binary glob matching (hobbs)
 7050 
 7051 2007-11-07 (performance) binary [gets] (hobbs)
 7052 
 7053 2007-11-09 (performance)[1829248] interp state reset (sofer)
 7054 
 7055 2007-11-10 (performance) stack checking (sofer)
 7056 
 7057 2007-11-10 (performance) list indexing bytecode (sofer)
 7058 
 7059 2007-11-11 (performance)[1830038] macros to fetch Tcl_Obj intreps (sofer)
 7060 
 7061 2007-11-11 (performance)[1830166] RE bytecode for simple cases (hobbs)
 7062 
 7063 2007-11-13 (performance) [switch] & [regexp] use RE bytecode (hobbs, fellows)
 7064 
 7065 2007-11-14 (performance) bytecode for [info exists] (fellows)
 7066 
 7067 2007-11-15 (new feature)[1231022] configure option: --disable-rpath (fellows)
 7068 
 7069 2007-11-15 (bug fix)[1810038] infinite loop in RE compiler (lane,porter)
 7070 
 7071 Many significant documentation improvements (fellows, sofer)
 7072 
 7073 --- Released 8.5b3, November 19, 2007 --- See ChangeLog for details ---
 7074 
 7075 2007-11-20 (enhancement) string rep of dict has stable order (fellows)
 7076 
 7077 2007-11-21 (enhancement) compiled ensemble support (fellows)
 7078 
 7079 2007-11-22 (enhancement) [dict] is now an ensemble (fellows)
 7080 
 7081 2007-11-23 (enhancement) [string] is now an ensemble (fellows)
 7082 
 7083 2007-11-26 (bug fix)[1815573] Correct stack checking failure (sofer,golovan)
 7084 
 7085 2007-11-27 (bug fix)[800753] Document single byte char limit for
 7086 [chan configure -eofchar] (cassoff)
 7087 
 7088 2007-12-03 (enhancement)[1836519] [switch $val $body] safe/fast (fellows,spjuth)
 7089 
 7090 2007-12-03 (release) tcltest package bump to 2.3.0 (porter)
 7091 
 7092 2007-12-03 (bug fix)[1618235] fix BSD compile errors (fellows)
 7093 
 7094 2007-12-05 (bug fix)[1844789] fix [lsearch -exact -integer] crash (fellows)
 7095 
 7096 2007-12-05 (performance)[1845092] Tcl_ObjType for channel names (hobbs)
 7097 
 7098 2007-12-14 (bug fix)[1602539] NUL pollution in [glob] result (hobbs)
 7099 
 7100 2007-12-17 (bug fix)[1851832,1851524] memory alignment correction (sofer)
 7101 
 7102 2007-12-18 (bug fix)[1810264] revised regexp engine to prevent debilitating
 7103 over-consumption of resources (drewry,lane,ormandy,fellows)
 7104 
 7105 Several documentation and release notes improvements
 7106 
 7107 --- Released 8.5.0, December 20, 2007 --- See ChangeLog for details ---
 7108 
 7109 2007-12-23 (bug fix)[1857126] restore backref support to regexps (hobbs)
 7110 
 7111 2007-12-26 (enhancement)[1856994] [lsort] performance (sofer)
 7112 
 7113 2008-01-10 (bug fix)[1867855] fix [format %lli 0] crash (porter)
 7114 
 7115 2008-01-11 (bug fix)[1850424,1860425] stack checking on *bsd (sofer,noble)
 7116 
 7117 2008-01-13 (bug fix)[1353846] crash in read-only serial (hobbs,newman)
 7118 
 7119 2008-01-15 (bug fix)[1869989] mem leak; expr literals (porter,melbardis)
 7120 
 7121 2008-01-20 (bug fix)[1869405] binary [gets]; stacked channels (hobbs,ficicchia)
 7122 
 7123 2008-01-22 (bug fix)[1867855] fix [lreverse {}] crash (sofer,madden)
 7124 
 7125 2008-01-30 (bug fix)[1882373] fix Tcl_GetAlias pointer code (an00na)
 7126 
 7127 Several documentation and release notes improvements
 7128 
 7129 --- Released 8.5.1, February 5, 2008 --- See ChangeLog for details ---
 7130 
 7131 2008-02-06 (enhancement) [clock format] performance (kenny)
 7132 
 7133 2008-02-12 (bug fix)[1891827] compiled [switch -nocase] error (fellows)
 7134 
 7135 2008-02-22 (bug fix)[1818565] missing state array in http::status (thoyts)
 7136 => http 2.5.4
 7137 
 7138 2008-02-26 (bug fix)[1868845] corrected [eof] ordering (thoyts)
 7139 
 7140 2008-02-26 (new feature) [http::meta] command (thoyts)
 7141 => http 2.5.5
 7142 
 7143 2008-02-26 (bug fix)[1902436] fixed regexps ending in \* (hobbs)
 7144 
 7145 2008-02-27 (bug fix)[1862555,1902423] [clock] range & l10n (kenny)
 7146 
 7147 2008-02-28 (bug fix) [return -level 0] memory leak (porter)
 7148 
 7149 2008-02-28 (bug fix) [format %llx $big] memory leak (porter)
 7150 
 7151 2008-02-28 (bug fix) expression parser error message memory leak (porter)
 7152 
 7153 2008-02-28 (bug fix) memory leak when enter trace modifies command (porter)
 7154 
 7155 2008-02-29 (enhancement) Consumer refcounting for Tcl_SetReturnOptions()
 7156 and Tcl_AddObjToErrorInfo() (spjuth,porter)
 7157 	*** POTENTIAL INCOMPATIBILITY ***
 7158 
 7159 2008-03-07 (bug fix)[1899164] Avoid expr and script bytecode confusion (porter)
 7160 
 7161 2008-03-07 (bug fix)[1904907] finalize crash in Tcl_GetReturnOptions (kupries)
 7162 
 7163 2008-03-10 (bug fix)[1893815] expr {abs(-1e-350)} => -0.0 (porter)
 7164 
 7165 2008-03-10 (bug fix)[1901113] crash in [tcl::Bgerror {} {}] (madden,porter)
 7166 
 7167 2008-03-11 (bug fix)[1911919] unset trace inf loop in namespace delete (sofer)
 7168 
 7169 2008-03-12 (new feature) some HTTP 1.1 support in http (and more!) (hobbs)
 7170 => http 2.7
 7171 
 7172 2008-03-13 (enhancement) support space in INSTALL_ROOT or $builddir (steffen)
 7173 
 7174 2008-03-16 (bug fix)[1903325] bytecode stack space prediction crash (fellows)
 7175 
 7176 2008-03-18 (bug fix)[1914604] Tcl Modules: encoding fixed to utf-8; environment
 7177 variables without "." added to customization hooks (kupries)
 7178 	*** POTENTIAL INCOMPATIBILITY ***
 7179 
 7180 2008-03-18 (bug fix)[1914503] alignment of TclStackAlloc() return (sofer)\
 7181 
 7182 2008-03-20 (bug fix)[1868171] expose Tcl_GetMemoryInfo (for AOLserver) (fellows)
 7183 
 7184 2008-03-24 (bug fix)[1923966] crash in [binary format x0s] (thoyts)
 7185 
 7186 2008-03-27 (platform support)[1921166] Solaris 64bit build fixes (steffen)
 7187 
 7188 2008-03-27 clock tzdata updated to Olson's tzdata2008b (kenny)
 7189 
 7190 --- Released 8.5.2, March 28, 2008 --- See ChangeLog for details ---
 7191 
 7192 2008-03-30 (bug fix)[1783544] more robust TclIsNaN() (kenny,teterin)
 7193 
 7194 2008-04-01 (interface)[1819422] tclStubsPtr no longer in libtcl (porter)
 7195 	*** POTENTIAL INCOMPATIBILITY ***
 7196 
 7197 2008-04-01 (bug fix)[1839067] FP round fix for Solaris/x86 (kupries,schlenker)
 7198 
 7199 2008-04-02 (bug fix)[780533,1932639] [fcopy] callbacks unreliable (ferrieux)
 7200 
 7201 2008-04-02 (interface)[1819422] libtclstub symbols MODULE_SCOPE (steffen)
 7202 
 7203 2008-04-04 (bug fix) [chan postevent] crash (kupries)
 7204 
 7205 2008-04-07 (bug fix) Fix broken [format {% d}] (max)
 7206 
 7207 2008-04-07 (bug fix)[1350564] Bi-directional [fcopy] now supported (ferrieux)
 7208 
 7209 2008-04-16 (bug fix)[1938497] Tcl_SetNotifier() fixes (steffen)
 7210 
 7211 2008-04-16 (interface)[1938497] make stubs tables 'static const' (steffen)
 7212 
 7213 2008-05-02 (new feature) [binary] is now a [namespace ensemble] (thoyts)
 7214 
 7215 2008-05-07 (bug fix) [dict append] crash (mccormack,fellows)
 7216 
 7217 2008-05-21 (bug fix)[1968882] [info complete "\\\n"] => 0 (porter)
 7218 
 7219 2008-05-22 (bug fix)[1968245] Tcl_LogCommandInfo() accept length=-1 (darroch)
 7220 
 7221 2008-05-23 (bug fix)[1965787] 32-bit overflow in [tell] result (ferrieux)
 7222 
 7223 2008-05-31 (new feature)[TIP 257]  [oo::*] commands from TclOO (fellows)
 7224 
 7225 2008-06-04 (new feature)[TIP 317] [binary encode]; [binary decode] (thoyts)
 7226 
 7227 2008-06-06 (new feature)[TIP 230] [chan push]; [chan pop] (kupries)
 7228 
 7229 2008-06-08 (enhancement)[1973096] bytecompiled [uplevel] scripts (sofer)
 7230 
 7231 2008-06-12 (platform support) Solaris static build with DTrace (steffen)
 7232 
 7233 2008-06-12 (platform support) Solaris/amd64 gcc 64bit support (steffen)
 7234 
 7235 2008-06-13 (new feature)[TIP 285] [interp cancel]; Tcl_CancelEval() (mistachkin)
 7236 
 7237 2008-06-20 (bug fix)[1999035] make [interp bgerror $i] act in $i (porter)
 7238 
 7239 2008-06-23 (bug fix)[1972879] bad path intrep caching (porter)
 7240 
 7241 2008-06-24 (bug fix)[1999176] crash in [glob -dir {} a] (porter)
 7242 
 7243 2008-06-25 (bug fix)[1999119] Support TM packages in Safe Base (kupries)
 7244 
 7245 --- Released 8.6a1, June 25, 2008 --- See ChangeLog for details ---
 7246 
 7247 2008-06-29 (bug fix)[2004480] plug memory leaks (ade,porter,steffen)
 7248 
 7249 2008-07-01 (enhancement)[1905562] embed recursion limit in RE engine (fellows)
 7250 
 7251 2008-07-03 (bug fix)[1969717] fix package finding on Samba shares (jos)
 7252 
 7253 2008-07-03 (bug fix)[1987821] mem leak in [seek] on reflected chan (kupries)
 7254 
 7255 2008-07-13 (enhancement)[2017110] new Non-Recursive Evaluation implementation
 7256 enables deep Tcl evaluation stacks without deep C stacks. (sofer)
 7257 
 7258 2008-07-20 (enhancement)[2008248] dict->list preserve item intreps (pasadyn)
 7259 
 7260 2008-07-21 (bug fix)[582506] imported cmds now fire execution traces (sofer)
 7261 
 7262 2008-07-21 (bug fix)[2015723] [file] bad use of inodes on Windows (thoyts)
 7263 
 7264 2008-07-21 (new feature)[TIP 304] [chan pipe] (ferrieux)
 7265 
 7266 2008-07-21 (bug fix)[2021443] more consistent "wrong # args" msgs (nijtmans)
 7267 
 7268 2008-07-21 (enhancement) [info frame] returns file data in more cases (kupries)
 7269 
 7270 2008-07-29 (bug fix)[2030670] fix rare panic in TclStackFree (pasadyn,sofer)
 7271 
 7272 2008-08-01 Tcl_Finalize() no longer called implicitly on DLL_PROCESS_DETACH.
 7273 
 7274 2008-08-05 (enhancement)[1994512] async connect logic simplified (jenglish)
 7275 
 7276 2008-08-06 (bug fix)[2040295] stopped supplying a workaround for bugs
 7277 in Itcl's use of [namespace code].  Itcl now supplies its own workaround.
 7278 	*** POTENTIAL INCOMPATIBILITY for older Itcl releases ***
 7279 
 7280 2008-08-06 (bug fix)[2039178] repaired guard against dispatching oo methods
 7281 in a deleted interp. (porter)
 7282 
 7283 2008-08-08 tzdata updated to Olson's tzdata2008e (kenny)
 7284 
 7285 2008-08-11 (bug fix)[2046846] 64bit support for http zlib crc (thoyts)
 7286 => http 2.7.1
 7287 
 7288 2008-08-11 (enhancement) automatic [package provide] for TMs (kupries)
 7289 
 7290 2008-08-17 (bug fix)[2055782] crash involving Tcl_ConcatObj (sofer)
 7291 
 7292 2008-08-21 (new feature) CONST-ified Tcl routines passing (Tcl_ObjType *),
 7293 (Tcl_Filesystem *), or (Tcl_Timer *) arguments (nijtmans,porter)
 7294 	*** POTENTIAL INCOMPATIBILITY ***
 7295 
 7296 2008-08-21 (bug fix)[2065115] Restored ***= regexp functioning (hobbs,porter)
 7297 
 7298 --- Released 8.6a2, August 25, 2008 --- See ChangeLog for details ---
 7299 
 7300 2008-08-29 (bug fix)[2082299] Install TclOO header files (fellows)
 7301 
 7302 2008-09-01 oo methods called during interp deletion no longer skipped if
 7303 they do not need the dying interp (fellows)
 7304 
 7305 2008-09-02 (support) Dropped support for pre-ANSI compilers.  (porter)
 7306 
 7307 2008-09-04 (bug fix)[2093947] var unset trace in coroutine (fellows,sofer)
 7308 
 7309 2008-09-10 (enhancement) efficient list->dict conversion (elby,fellows)
 7310 
 7311 2008-09-10 (bug fix)[2102930] faulty numLevels count (madden,sofer)
 7312 
 7313 2008-09-16 (bug fix)[2114165] eval failure following cancel (sofer)
 7314 
 7315 2008-09-17 (bug fix)[2116053] export [min] and [max] from tcl::mathfunc (sofer)
 7316 
 7317 2008-09-22 (new feature)[TIP 320] oo common variable declaration (fellows)
 7318 
 7319 2008-09-24 (new feature)[TIP 316] portable access to Tcl_StatBuf (fellows)
 7320 
 7321 2008-09-24 (new feature)[TIP 323] [file delete], [file mkdir] zero pathNames (porter)
 7322 
 7323 2008-09-25 (new feature)[TIP 315] new var: tcl_platform(pathSeparator) (vu,fellows)
 7324 
 7325 2008-09-25 (new feature)[TIP 323] [global], [variable] zero varNames (porter)
 7326 
 7327 2008-09-26 (new feature)[TIP 323] [lassign], [namespace upvar], [my variable] zero varNames (porter)
 7328 
 7329 2008-09-26 (new feature)[TIP 323] [tcl::tm::path add|remove] zero pathNames (porter)
 7330 
 7331 2008-09-26 (new feature)[TIP 323] [lrepeat] zero elements; zero repeats (porter)
 7332 
 7333 2008-09-27 (bug fix)[2130992] prevent overflow crash in [lrepeat] (fellows)
 7334 
 7335 2008-09-28 (new feature)[TIP 314] ensemble parameters before subcommand (hellström,fellows)
 7336 
 7337 2008-09-29 (new feature)[TIP 318] revised defaults for [string trim] (poser)
 7338 	*** POTENTIAL INCOMPATIBILITY ***
 7339 
 7340 2008-09-29 (new feature)[TIP 313] [lsearch -bisect] (spjuth)
 7341 
 7342 2008-09-29 (new feature)[TIP 326] [lsort -stride] (elby)
 7343 
 7344 2008-09-29 (new feature)[TIP 323] [linsert] zero elements (porter)
 7345 
 7346 2008-09-29 (new feature)[TIP 323] [glob] zero patterns (porter)
 7347 
 7348 2008-10-02 (new feature)[TIP 330] interp->result access disabled (kenny)
 7349 	*** POTENTIAL INCOMPATIBILITY ***
 7350 
 7351 2008-10-03 (new feature)[TIP 265] Tcl_ParseArgv() (bromley)
 7352 
 7353 2008-10-03 (new feature)[TIP 195] [tcl::prefix] (spjuth)
 7354 
 7355 2008-10-04 (new feature) CONST-ified Tcl routines Tcl_GetIndexFromObj,
 7356 Tcl_RegisterConfig, Tcl_InitCustomHashTable, and routines passing
 7357 (Tcl_ChannelType *). (nijtmans)
 7358 	*** POTENTIAL INCOMPATIBILITY ***
 7359 
 7360 2008-10-04 (bug fix)[2059262] unload only libraries marked unloadable (nijtmans)
 7361 	*** POTENTIAL INCOMPATIBILITY ***
 7362 
 7363 2008-10-05 (new feature)[TIP 331] [lset listVar end+1 $value] (kenny)
 7364 
 7365 2008-10-05 (bug fix)[2143288] correct bad isqrt() results (boffey,kenny)
 7366 
 7367 2008-10-05 (new feature) CONST-ified return value of the
 7368 Tcl_FSFileAttrStringsProc prototype. (nijtmans)
 7369 	*** POTENTIAL INCOMPATIBILITY for Tcl_Filesystems ***
 7370 
 7371 2008-10-07 (new feature)[TIP 327] [tailcall] (sofer)
 7372 
 7373 2008-10-07 (new feature)[TIP 328] [coroutine],[yield],[info coroutine] (sofer)
 7374 
 7375 2008-10-08 (bug fix)[2151707] fix stack trace from variable trace (porter)
 7376 
 7377 2008-10-10 (bug fix)[2155658] crash in oo method export (fellows)
 7378 
 7379 --- Released 8.6a3, October 10, 2008 --- See ChangeLog for details ---
 7380 
 7381 2008-10-13 (bug fix) Fix ability to join threads on 64-bit Windows (thoyts)
 7382 
 7383 2008-10-23 (bug fix)[2186888] Direct-eval [for] handling of [continue] was
 7384 broken by NRE reform (sofer,porter)
 7385 
 7386 2008-10-24 (bug fix) fix failure to read SHOUTcast streams (thoyts)
 7387 => http 2.7.2
 7388 
 7389 2008-10-27 (enhancement) system encoding at startup is now "iso8859-1", and
 7390 no longer "identity".  Use of identity encoding minimized (porter)
 7391 	*** POTENTIAL INCOMPATIBILITY ***
 7392 
 7393 2008-10-31 (bug fix)[2200824] revised [oo::define] to include caller
 7394 context when resolving names. (nassau,fellows)
 7395 
 7396 2008-11-10 (bug fix)[2255235] [platform::shell::LOCATE] update (ring,kupries)
 7397 => platform::shell 1.1.4
 7398 
 7399 2008-11-13 (bug fix)[2269431] VFS [load] -> tempfile litter (ficicchia,nijtmans)
 7400 
 7401 2008-11-26 (bug fix)[2114900] updated tclIndex file (cassoff,kenny)
 7402 
 7403 2008-11-27 (bug fix)[2251175] [{*}{\{}] errors (hellström,ferrieux,porter)
 7404 
 7405 2008-11-29 (new feature)[TIP 210] [file tempfile] (techentin,fellows)
 7406 
 7407 2008-11-30 (bug fix)[2362156] [clock]: colon in format string (mizuno,kenny)
 7408 
 7409 2008-12-02 (bug fix)[2270477] hang in channel finalization (ferrieux,kupries)
 7410 
 7411 2008-12-02 (new feature)[TIP 336] Tcl_*ErrorLine() routines.  Direct access
 7412 to the errorLine field of the interp struct denied by default. (porter)
 7413 	*** POTENTIAL INCOMPATIBILITY ***
 7414 	*** Define USE_INTERP_ERRORLINE to restore access for legacy code ***
 7415 
 7416 2008-12-04 (bug fix)[2385549] [file normalize] failed on some paths (porter)
 7417 
 7418 2008-12-05 (new feature)[TIP 307] Tcl_TransferResult() (leunissen,fellows)
 7419 
 7420 2008-12-05 (new feature)[TIP 335] Tcl_InterpActive() (mistachkin,fellows)
 7421 
 7422 2008-12-09 (new feature)[TIP 337] Tcl_BackgroundException() (porter)
 7423 
 7424 2008-12-10 (new feature)[TIP 341] >1 [dict filter] patterns (hellström,fellows)
 7425 
 7426 2008-12-10 (new feature)[TIP 343] [format %b $n] [scan $s %b] (ferrieux)
 7427 
 7428 2008-12-10 tzdata updated to Olson's tzdata2008i (kenny)
 7429 
 7430 2008-12-11 (new feature)[TIP 234] [zlib] and Tcl_Zlib*() (sheffers,fellows)
 7431 
 7432 2008-12-11 (bug fix)[2407783] spoil ChannelState when channel name passes
 7433 among multiple interps (kupries)
 7434 
 7435 2008-12-12 (new feature)[TIP 322] Tcl_NR*() routines to enabled non-recursive
 7436 evaluation in extensions (sofer,kenny)
 7437 
 7438 2008-12-09 (new feature)[TIP 338] Tcl_*StartupScript() (porter)
 7439 	*** POTENTIAL INCOMPATIBILITY for callers of Tcl*Startup* routines ***
 7440 
 7441 2008-12-16 (new feature)[TIP 329] [try] [throw] (davel,fellows)
 7442 
 7443 2008-12-17 (new feature)[TIP 308] package tdbc 1.0b1 (kenny)
 7444 
 7445 2008-12-18 (new feature)[TIP 332] [close $chan read|write] (ferrieux)
 7446 
 7447 2008-12-18 (bug fix)[2444274] panic in long commands from {*} (goth,porter)
 7448 
 7449 --- Released 8.6b1, December 19, 2008 --- See ChangeLog for details ---
 7450 
 7451 2008-12-27 [TIP 234] Tcl_Zlib* interface revisions (fellows)
 7452 	*** INCOMPATIBILITY with interface of 8.6b1 ***
 7453 
 7454 2009-01-02 (platform support)[878333] IRIX compat for mkstemp() (fellows)
 7455 
 7456 2009-01-03 (bug fix)[2481670] [clock add] error message (talvo)
 7457 
 7458 2009-01-05 (bug fix)[2412068] NR-enable [source] (fellows)
 7459 
 7460 2009-01-06 (bug fix)[2489836] crash unknown method dispatch (nadkarni,fellows)
 7461 
 7462 2009-01-06 (bug fix)[2481109] fix context of instance name check (fellows)
 7463 
 7464 2009-01-08 (enhancement) more -errorcode values (fellows)
 7465 
 7466 2009-01-19 (new feature) CONFIG_INSTALL_DIR - where tclConfig.sh goes (cassoff)
 7467 
 7468 2009-01-19 (platform support) better tools for BSD ports (cassoff)
 7469 
 7470 2009-01-21 (bug fix)[2458202] exit crash with [chan create]d channel (kupries)
 7471 
 7472 2009-01-26 (bug fix)[2446662] uniformly declare EOF on RST on sockets (ferrieux)
 7473 
 7474 2009-01-26 (bug fix)[1028264] delay WSACleanup() from under our feet (ferrieux)
 7475 
 7476 2009-01-29 (bug fix)[2519474] Tcl_FindCommand() bug exposed by oo (fellows)
 7477 
 7478 2009-01-29 (bug fix)[2537939] Fix Tcl_OOInitStubs() for no-stubs build (fellows)
 7479 
 7480 2009-02-04 (bug fix)[2561746] [string repeat] overflow crash (porter)
 7481 
 7482 2009-02-05 (enhancement) optimize string operations on bytearrays (fellows)
 7483 
 7484 2009-02-12 (bug fix) enable simpler [oo::define] extension (ferri,fellows)
 7485 
 7486 2009-02-15 (bug fix)[2603158] Tcl_AppendObjToObj: append to self crash (porter)
 7487 
 7488 2009-02-17 (platform support) MSVC and _WIN64 (hobbs)
 7489 
 7490 2009-02-20 (bug fix)[2571597] [file pathtype /a] wrong result (nadkarni,porter)
 7491 
 7492 2009-03-03 (bug fix)[2662434] [zlib crc32] result now unsigned (gavilan,fellows)
 7493 
 7494 2009-03-15 (platform support) translate SIGINFO where defined (BSD) (teterin)
 7495 
 7496 2009-03-15 (bug fix)[2687952] TSD struct memleak (mistachkin)
 7497 
 7498 2009-03-18 (bug fix)[2688184] memleak in [file normalize] (mistachkin)
 7499 
 7500 2009-03-20 (bug fix)[2597185] crash in Tcl_AppendStringToObj (porter)
 7501 
 7502 2009-03-20 (bug fix)[2561794,2669109,2494093,2553906] string overflow (porter)
 7503 
 7504 2009-03-22 (bug fix)[2502037] NR-enable [namespace unknown] (sofer)
 7505 
 7506 2009-03-27 (bug fix)[2710920] [file dirname|tail /foo/] errors (epler,porter)
 7507 
 7508 2009-04-08 (bug fix)[2570363] unsafe [eval]s in tcltest (bron,porter)
 7509 => tcltest 2.3.1
 7510 
 7511 2009-04-08 (platform support) more Darwin kernel patterns (steffen)
 7512 => platform 1.0.4
 7513 
 7514 2009-04-09 (bug fix)[26245326] [http::geturl] connection failures (golovan)
 7515 => http 2.7.3
 7516 
 7517 2009-04-10 (new feature) Darwin: embeddable CoreFoundation notifier (steffen)
 7518 
 7519 2009-04-10 (bug fix)[1961211]  Darwin [load] back-compatibility (steffen)
 7520 
 7521 2009-04-09 (new feature) http chunked+gzip modes (thoyts)
 7522 => http 2.8.0
 7523 
 7524 2009-04-11 (enhancement) clarified cmd name resolution in oo forwards (fellows)
 7525 
 7526 20009-04-19 (bug fix)[2715421] http: excess bytes after POST (thoyts)
 7527 => http 2.8.1
 7528 
 7529 2009-04-30 (bug fix)[2486550] coroutine in [interp invokehidden] (sofer)
 7530 
 7531 2009-05-07 (bug fix)[2785893] find command in deleted namespace (sofer)
 7532 
 7533 2009-05-08 (bug fix)[2414858] tailcall in oo constructor (fellows)
 7534 
 7535 2009-05-14 (new subcommand)[TIP 354] [info object namespace] (fellows)
 7536 
 7537 2009-05-29 (platform support) account for ia64_32 (kupries)
 7538 => platform 1.0.5
 7539 
 7540 2009-06-02 (bug fix)[2798543] incorrect [expr] integer ** results (porter)
 7541 
 7542 2009-06-10 (bug fix)[2801413] overflow in [format] (porter)
 7543 
 7544 2009-06-13 (bug fix)[2802881] corrected compile env context (tasada,porter)
 7545 
 7546 2009-06-17 (redesign) reduced ambition of [exit] finalization with aim to
 7547 avoid otherwise very tricky multi-thread finalization bugs. (staplin,ferrieux)
 7548 	*** POTENTIAL INCOMPATIBILITY for exit handlers ***
 7549 
 7550 2009-06-26 (platform support) updates for Xcode 3.1 & 3.2 (steffen)
 7551 
 7552 2009-06-30 (platform support) clang static analyzer macros (steffen)
 7553 
 7554 2009-07-01 (bug fix)[2806622] Win: bad tcl_platform(user) value (thoyts)
 7555 
 7556 2009-07-05 (bug fix) zlib support asynch [chan copy] on chan transform (fellows)
 7557 
 7558 2009-07-12 (bug fix)[1895546] TclOO support for Itcl 4 method caching (fellows)
 7559 
 7560 2009-07-13 (bug fix)[1605269] NR-related [info frame] fixes (kupries)
 7561 
 7562 2009-07-14 (bug fix)[2821401] NR-enable direct eval [switch] (kenny)
 7563 
 7564 2009-07-16 (bug fix)[2819200] underflow settings on MIPS systems (porter)
 7565 
 7566 2009-07-19 (interface)[TIP 354] new routine Tcl_GetObjectName() (fellows)
 7567 
 7568 2009-07-20 (performance) favor [string is] success cases over empty (fellows)
 7569 
 7570 2009-07-22 (interface) removed TclpPanic() routine (nijtmans)
 7571 
 7572 2009-07-23 (bug fix)[2820349] plug event leak in notifier (mistachkin)
 7573 
 7574 2009-07-24 (bug fix)[2826248] crash in Tcl_GetChannelHandle (sonnenburg,kupries)
 7575 
 7576 2009-07-31 (bug fix)[2830354] overflow in [format] (misch,porter)
 7577 
 7578 2009-08-06 (bug fix)[2827000] reflected channels can signal EGAIN (kupries)
 7579 
 7580 2009-08-12 (new feature)[TIP 353] Tcl_NRExprObj() (porter)
 7581 
 7582 2009-08-20 (bug fix)[2823276] NR-enable [if], [for], [while] (fellows)
 7583 
 7584 2009-08-20 (bug fix)[2806250] EIAS violation in ~foo pathnames (porter)
 7585 
 7586 2009-08-21 (bug fix)[2837800] [glob */foo] return ./~x/foo (porter)
 7587 
 7588 2009-08-24 (bug fix) nested event loop notifier w/TkAqua Cocoa (alaoui,steffen)
 7589 
 7590 2009-08-25 (bug fix) [info frame] account for continuation lines (kupries)
 7591 
 7592 2009-08-27 (bug fix)[2845535] overflows in [format] (porter)
 7593 
 7594 2009-09-01 (bug fix) improved error message in tcltest (porter)
 7595 => tcltest 2.3.2
 7596 
 7597 2009-09-11 (bug fix)[2849860] http handle "quoted" charset value (fellows)
 7598 => http 2.7.4
 7599 
 7600 2009-09-11 (enhancement)[2314561] [subst] now bytecompiled, NR-enabled (porter)
 7601 
 7602 2009-09-24 (new feature)[TIP 356] Tcl_NRSubstObj() (porter)
 7603 
 7604 2009-10-04 (bug fix)[2569449] Core Foundation memory bug in Tiger (steffen)
 7605 
 7606 2009-10-06 (bug fix) repair intrep loss in slave interp evaluations
 7607 introduced by first versions of the NRE conversion (nadkarni,porter)
 7608 
 7609 2009-10-06 (bug fix)[1941434] broken tclTomMath.h includes (porter)
 7610 
 7611 2009-10-07 (bug fix)[2871908] leaked hash table (mistachkin,kupries)
 7612 
 7613 2009-10-08 (bug fix)[2874678] bignum leak in [dict incr] (fellows)
 7614 
 7615 2009-10-17 (bug fix)[2629338] crash in var unset traces (raney,fellows)
 7616 
 7617 2009-10-19 (bug fix)[2107634] extend [read] and [gets] to Tcl string limits
 7618 (morrison,parker,porter)
 7619 
 7620 2009-10-21 (bug fix)[2882561] Haiku OS signal support (morrison,fellows)
 7621 
 7622 2009-10-22 (bug fix)[2883857] [my varname arr(index)] (boudaillier,fellows)
 7623 
 7624 2009-10-23 (bug fix) 0-length writes: spurious SIG_PIPE (teterin,kupries)
 7625 
 7626 2009-10-24 Broken DST applied EU rules to US zones (lehenbauer,kenny)
 7627 
 7628 2009-10-29 (bug fix)[2800740] halved bignum memory on 64-bit systems (porter)
 7629         *** POTENTIAL INCOMPATIBILITY ***
 7630 
 7631 2009-11-05 (bug fix)[2854929] TM search path support in Safe Base (kupries)
 7632 
 7633 2009-11-05 (enhancement) rewrite of the Safe Base commands (kupries)
 7634 
 7635 2009-11-11 (bug fix)[2888099] [close] loses ENOSPC error (khomoutov,ferrieux)
 7636 
 7637 2009-11-11 (bug fix)[2891171] RFC 3986 compliance for ? in URL (nijtmans)
 7638 => http 2.8.2
 7639 
 7640 2009-11-12 (bug fix)[2895565] [fcopy -size] miscounts when converting encodings
 7641 (kupries)
 7642 
 7643 2009-11-16 (bug fix)[2891556] encoding finalization crash (mistachkin,ferrieux)
 7644 
 7645 2009-11-18 (bug fix)[2849797] consistent names for std chans (nijtmans,fellows)
 7646         *** POTENTIAL INCOMPATIBILITY ***
 7647 
 7648 2009-11-19 (enhancement) [load]able Tcltest extension (nijtmans)
 7649 
 7650 2009-11-24 (bug fix)[2893771] [file stat] on Win locked files (thoyts)
 7651 
 7652 2009-11-24 (bug fix)[2903011] crash call destructor from constructor (fellows)
 7653 
 7654 2009-12-03 (bug fix)[2906841] Safe Base [glob ../*] fixes (fellows)
 7655 
 7656 2009-12-09 (bug fix)[2901998] consistent I/O buffering (ferrieux,kupries)
 7657 
 7658 2009-12-11 (bug fix)[2806407] NR-enabled coroutines (sofer)
 7659 
 7660 2009-12-16 (bug fix)[2913616] msgcat: improved safe interp support (fellows)
 7661 => msgcat 1.4.3
 7662 
 7663 2009-12-22 (bug fix)[2918962] [lsort -index -stride] crash (moore,fellows)
 7664 
 7665 2009-12-23 (bug fix)[2913625] [info script/nameof] in safe interps (fellows)
 7666 
 7667 2009-12-28 (bug fix)[2891362] enable time limit in child interps (fellows)
 7668 
 7669 2009-12-29 (bug fix)[2922555] [binary decode hex { }] crash (thoyts)
 7670 
 7671 2009-12-29 (bug fix)[2895741] enable min(), max() in safe interps (fellows)
 7672 
 7673 2009-12-30 (bug fix)[2824981] guard [unknown] against [set] undef (sofer)
 7674 
 7675 2010-01-05 (bug fix)[2918610] [file rootname] corruption (magerya,porter)
 7676 
 7677 2010-01-18 (bug fix)[2932421] less [format %s] shimmer (ferrieux)
 7678 
 7679 2010-01-18 (bug fix)[2918110] [chan postevent] crash (bron,kupries)
 7680 
 7681 2010-01-21 (bug fix)[2910748] NR-enable epoch fallback direct eval (sofer)
 7682 
 7683 2010-01-30 (enhancement) [unset] now bytecompiled (fellows)
 7684 
 7685 2010-02-01 (bug fix)[2942697] faster match: some pathological regexp patterns
 7686 (lane,fellows)
 7687 
 7688 2010-02-01 (bug fix)[2939073] [array unset] unset trace crash (ferrieux)
 7689 
 7690 2010-02-02 (bug fix)[2944404] crash in oo destructor (fellows)
 7691 
 7692 2010-02-02 (new feature) [array] is now a [namespace ensemble] (fellows)
 7693 
 7694 2010-02-05 (enhancement) [error] now bytecompiled (fellows)
 7695 
 7696 2010-02-08 (bug fix)[2947783] Tcl_Zlib*flate fail on shared values (fellows)
 7697 
 7698 2010-02-09 (enhancement) [try] now bytecompiled (fellows)
 7699 
 7700 2010-02-11 (bug fix)[2826551] line-sensitive matching in regexp (dejong)
 7701 
 7702 2010-02-11 (bug fix)[2949740] [open |noSuch rb] crash (kovalenko,fellows)
 7703 
 7704 2010-02-15 (bug fix)[2950259] harden (delete obj ns -> delete obj) (fellows)
 7705 
 7706 2010-02-21 (bug fix)[2954959] get sign of abs($zero) right (nijtmans)
 7707 
 7708 2010-02-22 (bug fix)[2762041] zlib chan transforms read EOF too early (kupries)
 7709 
 7710 2010-02-27 (bug fix)[801429] Tcl_SetMainLoop() thread safety (fellows)
 7711         *** POTENTIAL INCOMPATIBILITY ***
 7712 
 7713 2010-03-02 (enhancement) -fvisibility-hidden build support (nijtmans)
 7714 
 7715 2010-03-04 (bug fix)[2962664] [oo::class destroy] crash (fellows)
 7716 
 7717 2010-03-05 (interface) TclOO typedefs for function pointers (fellows)
 7718         *** POTENTIAL INCOMPATIBILITY ***
 7719 
 7720 2010-03-09 (bug fix)[2936225] stop [chan copy] to slow channel consuming all
 7721 memory with buffer backup (ferrieux)
 7722 
 7723 2010-03-17 (bug fix)[2921116] crash in chan transfrom teardown (kupries)
 7724 
 7725 2010-03-19 (enhancement) [throw] now bytecompiled (fellows)
 7726 
 7727 2010-03-20 (enhancement) permit [fcopy] of > 2**31 bytes (fellows)
 7728 
 7729 2010-03-24 (new feature) [info object methodtype] (fellows)
 7730 
 7731 2010-03-24 (bug fix)[2383005] [return -errorcode] reject non-list (porter)
 7732 
 7733 2010-03-25 (bug fix)[2976504] broken fstatfs() call (reeuwijk,fellows)
 7734 
 7735 2010-03-30 (new feature)[TIP 362] [registry -32bit|-64bit] (courtney,fellows)
 7736 => registry 1.3
 7737 
 7738 2010-03-30 (bug fix)[2978773] refchan mem preservation (kupries)
 7739 
 7740 2010-04-02 (new feature)[TIP 357] Tcl_LoadFile, Tcl_FindSymbol, etc. (kenny)
 7741 
 7742 2010-04-05 (configure change)[TIP 364] default build: --enable-threads (fellows)
 7743         *** POTENTIAL INCOMPATIBILITY ***
 7744 
 7745 2010-04-02 (new feature)[TIP 348] [info errorstack], [return -errorstack]
 7746 (ferrieux)
 7747 
 7748 2010-04-20 (enhancement) update bundled zlib to 1.2.5 (nijtmans)
 7749 
 7750 2010-04-29 (enhancement)[2992970] optimize bytearray appends (fellows)
 7751 
 7752 2010-05-19 (bug fix)[3004007] dict/list shimmer w/o string rep loss (fellows)
 7753 
 7754 2010-06-09 (bug fixes) platform: several fixes for 64 bit systems (kupries)
 7755 => platform 1.0.9
 7756 
 7757 2010-06-16 (bug fix)[3016135] [clock format] in he_IL locale (nijtmans)
 7758 
 7759 2010-06-18 (bug fix)[3017997] Add .cmd to file extensions for [exec] (fellows)
 7760 
 7761 2010-06-28 (bug fix)[3019634] support errno.h changes in MSVC++ 2010 (nijtmans)
 7762         *** POTENTIAL INCOMPATIBILITY ***
 7763 
 7764 2010-07-02 (enhancement) -errorcode for [expr] domain errors (fellows)
 7765 
 7766 2010-07-28 (bug fix)[3037525] crash deleting vars @ callframe pop (sofer)
 7767 
 7768 2010-08-04 (bug fix)[3034840] mem corrupt when refchan loses interp (kupries)
 7769 
 7770 2010-08-04 (enhancement) Win [load] use LOAD_WITH_ALTERED_SEARCH_PATH (hobbs)
 7771 
 7772 2010-08-04 (platform support) panic on detection of win9x system (hobbs)
 7773         *** POTENTIAL INCOMPATIBILITY ***
 7774 
 7775 2010-08-10 (fix) Handle non-null-terminated bytearrys in glob matching (hobbs)
 7776 
 7777 2010-08-11 (fix) copy-paste bug in [yield] implementation (sofer, goth)
 7778 
 7779 2010-08-11 (platform) Drop pre-aix 4.2 support, ldAix (hobbs)
 7780 
 7781 2010-08-14 (frq)[2819611] changed signatures of hash fnctions, delete-file, and get-native-path (nijtmans)
 7782         *** POTENTIAL INCOMPATIBILITY ***
 7783 
 7784 2010-08-15 (bug fix)[3045010] tweaked error message for wrong#args of lambda's (fellows)
 7785 
 7786 2010-08-18 (bug fix)[3004191] fixed safe [glob] (fellows)
 7787 
 7788 2010-08-21 (patch)[3034251] genStubs steal features of ttkGenStubs (nijtmans)
 7789 
 7790 2010-08-26 (bug fix)[1230554] configure, OSF-1 problems, windows manifest issues (hobbs)
 7791 
 7792 2010-08-30 (bug fix) [3046594,3047235,3048771] reimplemented tailcall (sofer)
 7793 
 7794 2010-08-31 fixed manifest handling on windows (hobbs, kupries)
 7795 
 7796 2010-08-31 windows makefile and stub changes (nijtmans)
 7797 
 7798 2010-09-01 (bug fix)[3057639] compiled lappend trace consistency (hobbs,kupries)
 7799         *** POTENTIAL INCOMPATIBILITY ***
 7800 
 7801 2010-09-01 fixed safe glob handling of -directory (kupries)
 7802 
 7803 2010-09-02 fixed safe glob handling of -join (kupries)
 7804 
 7805 2010-09-08 (bug fix)[3059922] build with mingw on amd64 (porter, mescalinum)
 7806 
 7807 2010-09-15 (bug fix)[3067036] stop hang in bytearray append (fellows)
 7808 
 7809 2010-09-22 unified set of link libraries between mingw and vc (nijtmans)
 7810 
 7811 2010-09-22 (bug fix)[3072640] protect writes to ::error* variables (sofer)
 7812 
 7813 2010-09-23 fix leak of return options [catch $err m constant] (porter, hobbs)
 7814 
 7815 2010-09-24 (bugfix)[3056775] fixed race condition in windows sockets (kupries)
 7816 
 7817 2010-09-24 (performance) string eq/cmp (hobbs)
 7818 
 7819 2010-09-26 (patch)[3072080] rewritten NRE core (sofer)
 7820 
 7821 2010-09-28 (new feature)[TIP 162] implementation of ipv6 sockets (max)
 7822 
 7823 2010-10-02 (bug fix)[3079830] properly invalidate string rep of dicts (fellows)
 7824 
 7825 2010-10-06 (bug fix)[3081065] fix writing to freed Tcl_Obj (porter)
 7826 
 7827 2010-10-08 fix in ipv6 code on windows (nijtmans)
 7828 
 7829 2010-10-09 fixed overallocation of execution stack (sofer)
 7830 
 7831 2010-10-11 windows unicode changes (nijtmans)
 7832 
 7833 2010-10-12 (bug fix)[3084338] fixed meamleak in ipv6 code (max)
 7834 
 7835 2010-10-13 (bug fix)[467523,983660] alt fix allows empty literal share (porter)
 7836 
 7837 2010-10-15 (bugfix)[3085863] updated unicode tables (nijtmans)
 7838         *** POTENTIAL INCOMPATIBILITY ***
 7839 
 7840 2010-10-16 refactored implementation of dict iteration (fellows)
 7841 
 7842 2010-10-17 (patch)[2995655] report inner contexts on error stack (ferrieux)
 7843 
 7844 2010-10-19 (bug fix)[3081008] fixed bytearray zlib interaction (fellows)
 7845 
 7846 2010-10-19 improved crc, appending to bytearray (fellows)
 7847 
 7848 2010-10-20 improved compilation of [dict for] (fellows)
 7849 
 7850 2010-10-26 Added private support to disable reverse dns (max)
 7851 
 7852 2010-10-26 Prevent crashes when querying socket options (fellows, max)
 7853 
 7854 2010-10-28 (bug fix)[3093120] prevent freeaddrinfo(NULL) (porter, virden)
 7855 
 7856 2010-10-29 (bug fix)[2905784] stop cycle waste in short [after] (ferrieux)
 7857 
 7858 2010-11-01 tzdata updated to Olson's tzdata2010o (kenny)
 7859 
 7860 2010-11-04 (bug fix)[3099086] Clarified docs of var substitution (fellows)
 7861 
 7862 2010-11-04 improved install targets (cassof)
 7863 
 7864 2010-11-04 improved testing of sockets (max)
 7865 
 7866 2010-11-05 (frq)[491789] setargv/unicode cmdline for MSVC (nijtmans)
 7867 
 7868 2010-11-09 (bug fix)[3105999] fixed memleak in OO var resolver (fellows)
 7869 
 7870 2010-11-15 (TIP 378)[3081184] improved TIP 280 performance (kupries)
 7871 
 7872 2010-11-16 (platform) VS 2005 SP1 MSVC compiler (nijtmans)
 7873 
 7874 2010-11-18 (bug fix)[3111059] leak in [namespace delete] w coroutines (sofer)
 7875 
 7876 2010-11-28 [3120139,3105247] Tcl_PrintDouble improvements (kenny)
 7877 
 7878 2010-11-29 (new cmd) [tcl::unsupported::inject] (ferrieux,sofer)
 7879 
 7880 2010-11-30 (enhancement) Restore TclFormatInt for performance (hobbs)
 7881 
 7882 2010-12-09 (new feature) [file] is now a [namespace ensemble] (fellows)
 7883 
 7884 2010-12-19 (bug fix) [fcopy -size 1 -command] asynchronous (ferrieux)
 7885 
 7886 2010-12-12 (platform) OpenBSD build improvements (cassoff)
 7887 
 7888 2010-12-17 (platform) Revisions to support rpm 4.4.2 (cassoff)
 7889 
 7890 2010-12-27 (bug fix) crash in [lsort] w multiple -index options (fellows)
 7891 
 7892 2010-12-30 (bug fix)[3142026] GrowEvaluationStack OBOE (harder,sofer)
 7893 
 7894 2011-01-18 (bug fix)[3001438] [info frame -1] crash (mccormack,fellows)
 7895 
 7896 2011-03-01 (performance)[3168398] optimize [interp cancel] (mistachkin)
 7897 
 7898 2011-03-05 (bug fix)[3185009] crash in OO variables (danckaert,fellows)
 7899 
 7900 2011-03-05 (new cmd) [tcl::unsupported::assemble] (ugurlu,kenny)
 7901 
 7902 2011-03-06 (bug fix)[3200987,3192636] parser buffer overruns (porter)
 7903 
 7904 2011-03-08 (bug fix)[3202905] failed intrep release of interp result (mccormack)
 7905 
 7906 2011-03-09 (bug fix)[3202171] repair [namespace inscope] optimizer (porter)
 7907 
 7908 2011-03-10 (new version) better tcltest reporting from child interps (fellows)
 7909 => tcltest 2.3.3
 7910 
 7911 2011-03-10 (new feature) [namespace] is now a [namespace ensemble] (fellows)
 7912 
 7913 2011-03-12 (interface) reduce casting by ckalloc(), ckfree() callers (fellows)
 7914 
 7915 2011-03-14 (bug fix) Fixes from libtommath 0.42.0 release (fellows)
 7916 
 7917 2011-03-21 (bug fix)[3216070] [load] extension from embed Tcl apps (nijtmans)
 7918 	***POTENTIAL INCOMPATIBILITY***
 7919 
 7920 2011-03-27 (performance) NRE: LIST lset foreach benchmark (twylite)
 7921 
 7922 2011-04-11 (bug fix)[3282869] coroutine + eval + locals crash (ferrieux,sofer)
 7923 
 7924 2011-04-13 (bug fix)[2662380] crash when variable append trace unsets (sofer)
 7925 
 7926 2011-04-13 (bug fix)[3285375] Buffer overflow in [concat] (porter)
 7927 
 7928 2011-05-02 (internals change) revised TclFindElement() interface (porter)
 7929 	*** POTENTIAL INCOMPATIBILITY ***
 7930 
 7931 2011-05-05 (enhancement) dict->list w/o string rep generation (porter)
 7932 
 7933 2011-05-10 (bug fix)[3173086] Crash parsing long lists (rogers,porter)
 7934 
 7935 2011-05-24 (enhancement) msgcat internal improvements (fellows)
 7936 => msgcat 1.4.4
 7937 
 7938 2011-05-25 (TIP 381) [info object|class call] [self call] [nextto] (fellows)
 7939 
 7940 2011-05-31 (bug fix)[3293874] let lists grow all the way to the limit (porter)
 7941 
 7942 2011-06-02 (bug fix)[3185407] cmd resolution epoch flaw (nadkarni,fellows)
 7943 
 7944 2011-06-13 (bug fix)[3315098] mem leak generating double string rep (neumann)
 7945 
 7946 2011-06-22 (new feature) DEB_HOST_MULTIARCH support (kupries)
 7947 => platform 1.0.10
 7948 
 7949 2011-07-15 (bug fix)[3357771] Prevent circular refs in bytecode (porter)
 7950 
 7951 2011-07-28 tzdata updated to Olson's tzdata2011h (porter)
 7952 
 7953 2011-08-01 (bug fix)[3383616] memleak exposed by XOTcl (neumann,sofer)
 7954 
 7955 Many more Tcl built-in command errors now set an -errorcode.
 7956 
 7957 --- Released 8.6b2, August 8, 2011 --- See ChangeLog for details ---
 7958 
 7959 2011-07-02 (bug fix)[3349507] correct double(1[string repeat 0 23]) (kenny)
 7960 
 7961 2011-07-19 (bug fix)[3371644] Tcl_ConvertElement() segfault (sader, ferrieux)
 7962 
 7963 2011-07-21 (bug fix)[3372130] hypot(.) segfault (nijtmans)
 7964 
 7965 2011-08-12 (bug fix)[3389764] memleaks due to reference cycles in dup'd paths
 7966 
 7967 2011-08-15 (bug fix)[3390272] leak of [info script] value (porter)
 7968 
 7969 2011-08-17 (bug fix)[3393150] bignum leaks in Tcl_Get*() routines (porter)
 7970 
 7971 2011-08-18 (bug fix)[3393714] [string toupper] overflow (nijtmans)
 7972 
 7973 2011-08-30 (bug fix)[3398794] panic in interp limit setting (gavlian,fellows)
 7974 
 7975 2011-09-08 (bug fix)[3401704] revised expr parser to permit function names
 7976 like "nano()" instead of parsing as "nan o()" with missing op (duquette,porter)
 7977 	*** POTENTIAL INCOMPATIBILITY ***
 7978 
 7979 2011-09-10 (bug fix)[3400658] wrong num args msg with TclOO (rsooltan,fellows)
 7980 
 7981 2011-09-13 (bug fix)[3390638] solaris studio cc workaround (kechel,porter)
 7982 
 7983 2011-09-13 (bug fix)[3405652] DTrace workaround (michelson,porter)
 7984 
 7985 2011-09-16 (bug fix)[3391977] -headers overrides -type (ziegenhagen,fellows)
 7986 => http 2.8.3
 7987 
 7988 2011-09-16 (TIP 388) New \Uhhhhhhhh syntax (nijtmans)
 7989 
 7990 2011-10-06 (enhancement) bytecode compile [dict with] (fellows)
 7991 
 7992 2011-10-11 (bug fix)[2935503] [file stat] returns bad mode (nadkarni,nijtmans)
 7993 
 7994 2011-10-20 (bug fix)[3418547] cmd lits and custom resolvers (soberning,fellows)
 7995 
 7996 2011-10-31 (bug fix)[3414754] EIAS violation in fs paths (porter)
 7997 
 7998 2011-11-22 (bug fix)[3354324] Win: [file mtime] sets wrong time (nijtmans)
 7999 
 8000 2011-11-30 (bug fix)[967195] Simply args passed to child processes (nijtmans)
 8001 => tcltest 2.3.4
 8002 
 8003 2011-12-07 (bug fix)[3444754] fix [string tolower \u01C5] (nijtmans)
 8004 
 8005 2011-12-11 (update)[3457031] Update [[:print:]] to Unicode 6.0 (nijtmans)
 8006 
 8007 2011-12-24 (bug fix)[3464428] fix [string is graph \u0120] (nijtmans)
 8008 
 8009 2012-01-08 (bug fix)[3470928] zoneinfo trouble with Windhoek data file (kenny)
 8010 
 8011 2012-01-13 (bug fix)[3472316] fix retrieval of socket error (fellows)
 8012 
 8013 2012-01-21 (bug fix)[3475667] [regexp] buffer read overflow (sebres)
 8014 
 8015 2012-01-22 (bug fix)[3475264] [dict exists] return 0, not error (fellows)
 8016 
 8017 2012-01-25 (bug fix)[3474460] [oo::copy] var resolution list (fellows)
 8018 
 8019 2012-01-26 (bug fix)[3475569,3479689] mem corrupt in fs path (sebres,porter)
 8020 
 8021 2012-01-30 (enhancement) improve bytecode compile of [catch] (fellows)
 8022 
 8023 2012-02-02 (bug fix)[2974459,2879351,1951574,1852572,1661378,1613456] Fix
 8024 problems where [file *able] would return false results on Win/Samba (porter)
 8025 
 8026 2012-02-06 (bug fix)[3484621] bump bytecode epoch on exec traces (kuhn,sofer)
 8027 
 8028 2012-02-15 (bug fix)[3487626] crash compiling [dict for] (fellows)
 8029 
 8030 2012-02-15 (enhancement) bytecode compile [lrange],[lreplace] (fellows)
 8031 
 8032 2012-02-17 (bug fix)[2233954] compile problem on AIX & Android (nijtmans)
 8033 
 8034 2012-02-29 (bug fix)[3466099] BOM in Unicode (nijtmans)
 8035 
 8036 2012-03-07 (bug fix)[3498327] RFC 3986 compliance (kupries)
 8037 
 8038 2012-03-26 (TIP 380) New builtin class [oo::Slot] (fellows)
 8039 	*** POTENTIAL INCOMPATIBILITY ***
 8040 
 8041 2012-03-27 (TIP 397) <cloned> method to extend [oo::copy] (fellows)
 8042 	*** POTENTIAL INCOMPATIBILITY ***
 8043 
 8044 2012-03-27 (TIP 395) New subcommand [string is entier] (fellows)
 8045 
 8046 2012-04-02 (TIP 396) New command [yieldto] (fellows)
 8047 
 8048 2012-04-04 (bug fix)[3514761] crash combining objects and ensembles (fellows)
 8049 
 8050 2012-04-09 (bug fix)[2712377] [info vars] and oo variables (fellows)
 8051 
 8052 2012-04-09 (bug fix)[3396896] no dups in oo var lists (fellows)
 8053 
 8054 2012-04-11 (bug fix)[3448512] [clock scan 1958-01-01] fail on Win (nijtmans)
 8055 
 8056 2012-04-15 (bug fix)[3517696] fix flush of zlib chan xform (fellows)
 8057 
 8058 2012-04-18 tzdata updated to Olson's tzdata2012c (kenny)
 8059 
 8060 2012-04-28 (TIP 398) exit non-blocking chan without flush (ferrieux)
 8061 	*** POTENTIAL INCOMPATIBILITY ***
 8062 
 8063 2012-05-02 (enhancement) Better use of Intel cpuid instruction (nijtmans)
 8064 
 8065 2012-05-03 (bug fix)[3428753] Unbreak synchronous [socket -async] (porter)
 8066 
 8067 2012-05-10 (bug fix)[2812981] force consistent config of Tcl+pkgs (ferrieux)
 8068 
 8069 2012-05-10 (bug fix)[473946] correct send of special characters (nijtmans)
 8070 
 8071 2012-05-17 (bug fix)[3445787] fix [file] ensemble in Safe Base (fellows)
 8072 
 8073 2012-05-17 (bug fix)[2964715] fix [glob] in Safe Base (fellows)
 8074 
 8075 2012-05-17 (bug fix)[3106532] proper [switch -indexvar] values (fellows)
 8076 	*** POTENTIAL INCOMPATIBILITY ***
 8077 
 8078 2012-05-21 (TIP 106) New -binary option to [dde execute|poke] (oehlmann)
 8079 => dde 1.4.0
 8080 
 8081 2012-05-23 (bug fix)[3525907] [zlib push decompress] & [chan event]
 8082 (fellows,ferrieux,kupries)
 8083 
 8084 2012-05-28 (bug fix)[3529949] Protect ~ paths in Safe Base (fellows)
 8085 
 8086 2012-06-21 (bug fix)[3362446] [registry keys] failure (nijtmans)
 8087 => registry 1.3.0
 8088 
 8089 2012-06-25 (bug fix)[3537605] [encoding dirs a b] error message (fellows)
 8090 
 8091 2012-06-25 (bug fix)[3024359] crash when multi-thread concurrent [file system]
 8092 and Tcl_FSMountsChanged(). (porter)
 8093 
 8094 2012-06-29 (bug fix)[3536888] fix locale guessing (oehlmann,nijtmans)
 8095 
 8096 2012-07-05 (bug fix)[1189293] make "<<" redirect binary safe (porter)
 8097 
 8098 2012-07-08 (bug fix)[3531209] accept IPv6 URLs (max)
 8099 => http 2.8.4
 8100 
 8101 2012-07-24 (bug fix) stop mem corruption in stacked channel events (max,porter)
 8102 
 8103 2012-07-25 (bug fix)[3546275] [auto_execok] search match [exec] (danckaert)
 8104 
 8105 2012-07-27 (update)[3464401] Support Unicode 6.2 (nijtmans)
 8106 
 8107 2012-08-20 (bug fix)[3559678] [file normalize] EIAS failure (phao,dgp)
 8108 
 8109 2012-08-25 (bug fix)[3561330] Ukranian translation of "March" (teterin)
 8110 
 8111 2012-09-07 (TIP 404) New msgcat commands [mcflset], [mcflmset] (oehlmann)
 8112 => msgcat 1.5.0
 8113 
 8114 Many revisions to better support a Cygwin environment (nijtmans)
 8115 
 8116 Dropped support for OS X versions less than 10.4 (Tiger) (fellows)
 8117 
 8118 --- Released 8.6b3, September 18, 2012 --- See ChangeLog for details ---
 8119 
 8120 2012-09-20 (enhancement) full Unicode support (nijtmans)
 8121 => dde 1.4.0
 8122 
 8123 2012-09-20 (enhancement) update bundled zlib to 1.2.7 (nijtmans)
 8124 
 8125 2012-10-03 (bug fix) exit panic on stacked std channel (griffin,porter)
 8126 
 8127 2012-10-14 (bug fix) [tcl::Bgerror] crash on non-dict options (nijtmans)
 8128 
 8129 2012-10-16 (TIP 400) New [zlib] options to set compression dict (fellows)
 8130 
 8131 2012-10-16 (TIP 405) New commands [lmap] and [dict map] (fellows)
 8132 
 8133 2012-10-24 (enhancement) [dict unset] now bytecompiled (fellows)
 8134 
 8135 2012-11-05 (TIP 413) Revisions to default [string trim*] trimset (nijtmans)
 8136 	*** POTENTIAL INCOMPATIBILITY ***
 8137 
 8138 2012-11-05 (enhancement) Now bytecompiled: [array exists], [array set],
 8139 [array unset], [dict create], [dict exists], [dict merge], [format],
 8140 [info commands], [info coroutine], [info level], [info object],
 8141 [namespace current], [namespace code], [namespace qualifiers], [namespace tail],
 8142 [namespace which], [regsub], [self], [string first], [string last],
 8143 [string map], [string range], [tailcall], [yield]. (fellows)
 8144 
 8145 2012-11-06 (bug fix)[3581754] avoid multiple callback on keep-alive (fellows)
 8146 => http 2.8.5
 8147 
 8148 2012-11-07 tzdata updated to Olson's tzdata2012i (kenny)
 8149 
 8150 2012-11-13 (bug fix)[3567063] thread fp settings from master (mistachkin)
 8151 
 8152 2012-11-14 (bug fix)[2933003] tempfile creation in $TMPDIR (fellows)
 8153 
 8154 2012-11-15 (TIP 416) New [load] options -global and -lazy (nijtmans)
 8155 
 8156 2012-11-20 (bug fix)[3033307] base64 trail whitespace (kovalenko,goth)
 8157 
 8158 2012-12-03 (bug fix) [configure] query broke init from argv (porter)
 8159 => tcltest 2.3.5
 8160 
 8161 2012-12-13 (bug fix)[3595576] crash: [catch {} -> noSuchNs::var] (sofer,porter)
 8162 
 8163 2012-12-13 (bug fix) crash: [zlib gunzip $data -header noSuchNs::var] (porter)
 8164 
 8165 --- Released 8.6.0, December 20, 2012 --- See ChangeLog for details ---
 8166 
 8167 2012-12-22 (bug fix)[3598150] DString to Tcl_Obj memleak (afredd)
 8168 
 8169 2012-12-27 (bug fix)[3598580] Tcl_ListObjReplace() refcount fix (nijtmans)
 8170 
 8171 2013-01-04 (bug fix) memleak in [format] compiler (fellows)
 8172 
 8173 2013-01-08 (bug fix)[3092089,3587096] [file normalize] on junction points
 8174 
 8175 2013-01-09 (bug fix)[3599395] status line processing (nijtmans)
 8176 2013-01-23 (bug fix)[2911139] repair async connection management (fellows)
 8177 => http 2.8.6
 8178 
 8179 2013-01-26 (bug fix)[3601804] Darwin segfault platformCPUID (nijtmans)
 8180 
 8181 2013-01-28 (enhancement) improve ensemble bytecode (fellows)
 8182 
 8183 2013-01-30 (enhancement) selected script code improvements (fradin)
 8184 => tcltest 2.3.6
 8185 
 8186 2013-01-30 (bug fix)[3599098] update to handle glibc banner changes (kupries)
 8187 => platform 1.0.11
 8188 
 8189 2013-01-31 (bug fix)[3598282] make install DESTDIR support (cassoff)
 8190 
 8191 2013-02-05 (bug fix)[3603434] [file normalize a:/] flaw in VFS (porter,griffin)
 8192 
 8193 2013-02-09 (bug fix)[3603695] $obj varname resolution rules (venable,fellows)
 8194 
 8195 2013-02-11 (bug fix)[3603553] zlib flushing errors (vampiera,fellows)
 8196 
 8197 2013-02-14 (bug fix)[3604576] msgcat use of Windows registry (oehlmann,nijtmans)
 8198 => msgcat 1.5.1
 8199 
 8200 2013-02-19 (bug fix)[2438181] report errors in trace handlers (yorick)
 8201 
 8202 2013-02-21 (bug fix)[3605447] unbreak [namespace export -clear] (porter)
 8203 
 8204 2013-02-23 (bug fix)[3599194] fallback IPv6 routines (afredd,max)
 8205 
 8206 2013-02-27 (bug fix)[3606139] stop crash in [regexp] (lane)
 8207 
 8208 2013-03-03 (bug fix)[3606258] major serial port update (english)
 8209 
 8210 2013-03-06 (bug fix)[3606683] [regexp (((((a)*)*)*)*)* {}] hangs
 8211 (grathwohl,lane,porter)
 8212 
 8213 2013-03-12 (enhancement) better build support for Debian arch (shadura)
 8214 
 8215 2013-03-19 (bug fix)[2893771] [file stat] on locked files (thoyts,nijtmans)
 8216 
 8217 2013-03-21 (bug fix)[2102614] [auto_mkindex] ensemble support (griffin)
 8218 
 8219 2013-03-27 Tcl_Zlib*() routines tolerate NULL interps (porter
 8220 
 8221 2013-04-04 (bug fix) Support URLs with query but no path (max)
 8222 => http 2.8.7
 8223 
 8224 2013-04-08 (bug fix)[3610026] regexp crash on color overflow (linnakangas)
 8225 
 8226 2013-04-29 (enhancement) [array set] compile improvement (fellows)
 8227 
 8228 2013-04-30 (enhancement) broaden glibc version detection (kupries)
 8229 => platform 1.0.12
 8230 
 8231 2013-05-06 (platform support) Cygwin64 (nijtmans)
 8232 
 8233 2013-05-15 (enhancement) Improved [list {*}...] compile (fellows)
 8234 
 8235 2013-05-16 (platform support) mingw-4.0 (nijtmans)
 8236 
 8237 2013-05-19 (platform support) FreeBSD updates (cerutti)
 8238 
 8239 2013-05-20 (bug fix)[3613567] access error temp file creation (keene)
 8240 
 8241 2013-05-20 (bug fix)[3613569] temp file open fail can crash [load] (keene)
 8242 
 8243 2013-05-22 (bug fix)[3613609] [lsort -nocase] failed on non-ASCII (fellows)
 8244 
 8245 2013-05-28 (bug fix)[3036566] Use language packs (Vista+) locale (oehlmann)
 8246 => msgcat 1.5.2
 8247 
 8248 2013-05-29 (bug fix)[3614102] [apply {{} {list [if 1]}}] stack woes (porter)
 8249 
 8250 2013-06-03 Restored lost performance appending to long strings (elby,porter)
 8251 
 8252 2013-06-05 (bug fix)[2835313] [while 1 {foo [continue]}] crash (fellows)
 8253 
 8254 2013-06-17 (bug fix)[a876646] [:cntrl:] includes \x00 to \x1f (nijtmans)
 8255 
 8256 2013-06-27 (bug fix)[983509] missing encodings for config values (nijtmans)
 8257 
 8258 2013-06-27 (bug fix)[34538b] apply DST in 2099 (lang)
 8259 
 8260 2013-07-02 (bug fix)[32afa6] corrected dirent64 check (griffin)
 8261 
 8262 2013-07-06 tzdata updated to Olson's tzdata2013d (kenny)
 8263 
 8264 2013-07-10 (bug fix)[86fb5e] [info frame] in compiled ensembles (porter)
 8265 
 8266 2013-07-18 (bug fix)[1c17fb] revisd syntax errorinfo that shows error (porter)
 8267 
 8268 2013-07-26 (bug fix)[6585b2] regexp {(\w).*?\1} abb (lane)
 8269 
 8270 2013-07-29 [string is space \u202f] => 1 (nijtmans)
 8271 
 8272 2013-08-01 [a0bc85] Limited support for fork with threads (for Rivet) (nijtmans)
 8273 
 8274 2013-08-01 (bug fix)[1905562] RE recursion limit increased to support
 8275 reported usage of large expressions (porter)
 8276 
 8277 2013-08-02 (bug fix)[9d6162] superclass slot empty crash (vdgoot,fellows)
 8278 
 8279 2013-08-03 (enhancement)[3611643] [auto_mkindex] support TclOO (fellows)
 8280 
 8281 2013-08-14 (bug fix)[a16752] Missing command delete callbacks (porter)
 8282 
 8283 2013-08-15 (bug fix)[3610404] reresolve traced forwards (porter)
 8284 
 8285 2013-08-15 Errors from execution traces become errors of the command (porter)
 8286 
 8287 2013-08-23 (bug fix)[8ff0cb9] Tcl_NR*Eval*() schedule only, as doc'd (porter)
 8288 
 8289 2013-08-29 (bug fix)[2486550] enable [interp invokehidden {} yield] (porter)
 8290 
 8291 2013-09-01 (bug fix)[b98fa55] [binary decode] fail on whitespace (reche,fellows)
 8292 
 8293 2013-09-07 (bug fix)[86ceb4] have tm path favor first provider (neumann,porter)
 8294 
 8295 2013-09-09 (bug fix)[3609693] copied object member variable confusion (fellows)
 8296 => TclOO 1.0.1
 8297 
 8298 2013-09-17 (bug fix)[2152292] [binary encode uuencode] corrected (fellows)
 8299 
 8300 2013-09-19 (bug fix)[3487626] segfaults in [dict] compilers (porter)
 8301 
 8302 2013-09-19 (bug fix)[31661d2] mem leak in [lreplace] (ade,porter)
 8303 
 8304 Many optmizations, improvements, and tightened stack management in bytecode.
 8305 
 8306 --- Released 8.6.1, September 20, 2013 --- http://core.tcl.tk/tcl/ for details
 8307 
 8308 2013-09-27 (enhancement) improved ::env synchronization (fellows)
 8309 
 8310 2013-10-20 (bug fix)[2835313] segfault from
 8311 [apply {{} {while 1 {a {*}[return -level 0 -code continue]}}}] (fellows)
 8312 
 8313 2013-10-22 (bug fix)[3556215] [scan %E%G%X] support (fellows)
 8314 
 8315 2013-10-25 (bug fix)[3eb2ec1] upper case scheme names in url. (nijtmans)
 8316 => http 2.8.8
 8317 
 8318 2013-10-29 (bug fix)[414d103] HP-UX: restore [exec] in threaded Tcl (nijtmans)
 8319 
 8320 2013-11-04 (bug fix) C++ friendly stubs struct declarations (nijtmans)
 8321 
 8322 2013-11-05 (bug fix)[426679e] OpenBSD man page rendering (nijtmans)
 8323 
 8324 2013-11-12 (bug fix)[5425f2c] [fconfigure -error] breaks [socket -async]
 8325 
 8326 2013-11-20 (bug fix) Improved environment variable management (nijtmans)
 8327 => tcltest 2.3.7
 8328 
 8329 2013-11-21 (platforms) Support for Windows 8.1 (nijtmans)
 8330 
 8331 2013-12-06 (RFE) improved [foreach] bytecode (fellows)
 8332 
 8333 2013-12-10 (RFE) improved [lmap] bytecode (sofer)
 8334 
 8335 2013-12-11 (RFE) improved [catch] bytecode (sofer)
 8336 
 8337 2013-12-18 (bug fix)[0b874c3] SEGV [coroutine X coroutine Y info frame] (porter)
 8338 
 8339 2013-12-20 (RFE) reduced numeric conversion in bytecode (sofer)
 8340 
 8341 2014-01-07 (RFE) compilers for  [concat], [linsert], [namespace origin],
 8342 [next], [string replace], [string tolower], [string totitle], [string toupper],
 8343 [string trim], [string trimleft], [string trimright] (fellows)
 8344 
 8345 2014-01-22 (RFE) compilers for [nextto], [yieldto] (fellows)
 8346 
 8347 2014-02-02 (RFE) compiler for [string is] (fellows)
 8348 
 8349 2014-02-06 (bug fix)[a4494e2] panic in test namespace-13.2 (porter)
 8350 
 8351 2014-03-20 (bug fix)[2f7cbd0] FreeBSD 10.0 build failure (nijtmans)
 8352 
 8353 2014-03-26 (RFE)[b42b208] Cygwin: [file attr -readonly -archive -hidden -system]
 8354 (nijtmans)
 8355 
 8356 2014-03-27 (bug fix) segfault iocmd-23.11 (porter)
 8357 
 8358 2014-04-02 (bug fix)[581937a] Win: readable event on async connect failure
 8359 
 8360 2014-04-04 (bug fix)[581937a,97069ea] async socket connect fail (oehlmann)
 8361 
 8362 2014-04-10 (bug fix)[792641f] Win: no \ in normalized path (nijtmans)
 8363 
 8364 2014-04-11 (bug fix)[3118489] protect NUL in filenames (nijtmans)
 8365 
 8366 2014-04-15 (bug fix)[88aef05] segfault iocmd-21.20 (porter)
 8367 
 8368 2014-04-16 (update) Win: use Winsock 2.2 (nijtmans)
 8369 
 8370 2014-04-16 (bug fix)[d19a30d] segfault clock-67.[23] (sebres)
 8371 
 8372 2014-04-21 (bug fix) segfault iocmd-21.2[12] (porter)
 8373 
 8374 2014-04-22 (bug fix) segfault iogt-2.4 (porter)
 8375 
 8376 2014-04-23 (bug fix)[3493120] memleak in thread exit
 8377 
 8378 2014-05-08 refactoring of core I/O functions (porter)
 8379 
 8380 2014-05-09 (bug fix)[3389978] Win: extended paths support (nijtmans)
 8381 
 8382 2014-05-09 (bug fix) segfault iocmd-32.1 (porter)
 8383 
 8384 2014-05-11 (bug fix)[6d2f249] nested ensemble compile failure (fellows)
 8385 
 8386 2014-05-17 (RFE)[47d6625] wideint support in [lsearch -integer] [lsort -integer] (nijtmans)
 8387 	*** POTENTIAL INCOMPATIBILITY ***
 8388 
 8389 2014-05-20 (bug fix) Stop eof and blocked state leaking thru stacks (porter)
 8390         *** POTENTIAL INCOMPATIBILITY ***
 8391 
 8392 2014-05-20 (bug fix)[13d3af3] Win: socket -async tried only first IP address
 8393 
 8394 2014-05-28 (platforms) work around systems that fail when a shared library
 8395 is deleted after it is [load]ed (kupries)
 8396 
 8397 2014-05-31 (bug fix) chan events on pipes must be on proper ends (porter)
 8398 
 8399 2014-06-04 (bug fix) socket-2.12 (porter)
 8400 
 8401 2014-06-05 (bug fix) io-12.6 (kupries,porter)
 8402 
 8403 2014-06-15 (RFE)[1b0266d] [dict replace|remove] return canonical dict (fellows)
 8404         *** POTENTIAL INCOMPATIBILITY ***
 8405 
 8406 2014-06-16 (bug fix) socket-2.13 workaround broken select() (porter)
 8407 
 8408 2014-06-20 (bug fix)[b47b176] iortrans.tf-11.0 (porter)
 8409 
 8410 2014-06-22 (RFE)[2f9df4c] -cleanup scripts before -out compare (nijtmans)
 8411 
 8412 2014-07-04 (update) Update Unicode data to 7.0 (nijtmans)
 8413         *** POTENTIAL INCOMPATIBILITY ***
 8414 
 8415 2014-07-08 (bug) [chan push] converts blocked writes to error (aspect,porter)
 8416 
 8417 2014-07-10 (bug fix)[7368d2] memleak Tcl_SetVar2(..,TCL_APPEND_VALUE) (porter)
 8418         *** POTENTIAL INCOMPATIBILITY ***
 8419 
 8420 2014-07-11 (bug) leaks in SetFsPathFromAny, [info frame] (porter)
 8421 
 8422 2014-07-15 (bug) compress dict leak in zlib xform channel close (porter)
 8423 
 8424 2014-07-17 (bug fix)[9969cf8] leak trace data in coroutine deletion (porter)
 8425 
 8426 2014-07-18 (RFE)[b43f2b4] fix [lappend] multi performance collapse (fellows)
 8427 
 8428 2014-07-19 (bug fix)[75b8433] memleak managing oo instance lists (porter)
 8429 
 8430 2014-07-21 (bug fix)[e6477e1] memleak in AtForkChild() (porter)
 8431 
 8432 2014-07-22 (bug fix)[12b0997] memleak in iocmd.tf-32.0 (porter)
 8433 
 8434 2014-07-28 (RFE) Optimized binary [chan copy] by moving buffers (porter)
 8435 
 8436 2014-07-30 (enhancement) use refcounts, not Tcl_Preserve to manage lifetime
 8437 of Tcl_Channel  (porter)
 8438         *** POTENTIAL INCOMPATIBILITY ***
 8439 
 8440 2014-07-31 (bug fix)[a84a720] double free in oo chain deletion (porter)
 8441 
 8442 2014-08-01 (bug fix)[e75faba] SEGV [apply {{} {namespace upvar a b [x]}}] (porter)
 8443 
 8444 2014-08-01 (update) "macosx*-i386-x86_64" "macosx-universal" no longer compatible (kupries)
 8445 => platform 1.0.13
 8446 
 8447 2014-08-12 tzdata updated to Olson's tzdata2014f (kenny)
 8448 
 8449 2014-08-17 (bug fix)[7d52e11] [info class subclasses oo::object] should
 8450 include ::oo::class (fellows)
 8451 
 8452 2014-08-25 (TIP 429) New command [string cat] (leitgeb,ferrieux)
 8453 
 8454 --- Released 8.6.2, August 27, 2014 --- http://core.tcl.tk/tcl/ for details
 8455 
 8456 2014-08-28 (bug)[b9e1a3] Correct Method Search Order (nadkarni,fellows)
 8457 => TclOO 1.0.3
 8458         *** POTENTIAL INCOMPATIBILITY ***
 8459 
 8460 2014-09-05 (bug)[ccc2c2] Regression [lreplace {} 1 1] (bron,fellows)
 8461 
 8462 2014-09-08 (bug)<oo-1.18.2> Crash regression in [oo::class destroy] (porter)
 8463 
 8464 2014-09-09 (bug)[84af11] Regress [regsub -all {\(.*} a(b) {}] (fellows)
 8465 
 8466 2014-09-10 (bug)[cee90e] [try {} on ok {} - on return {} {}] panic (porter)
 8467 
 8468 2014-09-20 (feature) [tcl::unsupported::getbytecode] disassember (fellows)
 8469 
 8470 2014-09-27 (enhancement) [string cat] bytecode optimization (leitgeb,ferrieux)
 8471 
 8472 2014-09-27 (bug)[82521b] segfault in mangled bytecode (ogilvie,sofer)
 8473 
 8474 2014-10-02 (bug)[bc5b79] Hang in some [read]s of limited size (rogers,porter)
 8475 
 8476 2014-10-03 (bug)[bc1a96] segfault in [array set] of traced array (tab,porter)
 8477 
 8478 2014-10-08 (bug)[59a2e7] MSVC14 compile support (dower,nijtmans)
 8479 
 8480 2014-10-10 (bug)[ed29c4] [fcopy] treats [blocked] as error (rowen,porter)
 8481 
 8482 2014-10-10 (bug)[bf7135] regression in Tcl_Write() interface (porter)
 8483 
 8484 2014-10-18 (bug)[10dc6d] fix [gets] on non-blocking channels (fassel,porter)
 8485 
 8486 2014-10-26 Support for Windows 10 (nijtmans)
 8487 
 8488 2014-10-31 (bug)[dcc034] restore [open comX: r+] (lll,nijtmans)
 8489 
 8490 2014-11-05 (bug)[214cc0] Restore [lappend v] return value (sayers,porter)
 8491 
 8492 2014-11-06 (bug)[5adc35] Stop forcing EOF to be permanent (porter)
 8493 
 8494 --- Released 8.6.3, November 12, 2014 --- http://core.tcl.tk/tcl/ for details
 8495 
 8496 2014-11-21 (bug)[743338] Win: socket error encoding (ladayaroslav,nijtmans)
 8497 
 8498 2014-12-01 (bug) restore tbcload/tclcompiler support (kupries)
 8499 
 8500 2014-12-03 (bug)[0c043a] Fix compiled [set var($) val] (porter)
 8501 
 8502 2014-12-04 (bug)[d2ffcc] Limit $... and bareword parsing to ASCII (ladayaroslav,porter)
 8503         *** POTENTIAL INCOMPATIBILITY ***
 8504 
 8505 2014-12-06 (bug)[c6cd4a] Win: hang in async socket connection (shults,nadkarni)
 8506 
 8507 2014-12-10 tzdata updated to Olson's tzdata2014j (venkat)
 8508 
 8509 2014-12-13 fix header files installation on OS X (houben)
 8510 
 8511 2014-12-17 (TIP 427) [fconfigure $h -connecting, -peername, -sockname] (oehlmann,rmax)
 8512 
 8513 2014-12-18 (bug)[af08c8] Crash in full finalize encoding teardown (porter)
 8514 
 8515 2014-12-18 (bug)[7c187a] [chan copy] crash (io-53.17) (benno,porter)
 8516 
 8517 2015-01-26 (bug)[df0848] Trouble with INFINITY macro (dower,nijtmans)
 8518 
 8519 2015-01-29 (bug) Stop crashes when extension var resolvers misbehave (porter)
 8520 
 8521 2015-01-29 (bug)[088727] [read] past EOF (io-73.4) (fenugrec,porter)
 8522 
 8523 2015-02-11 tzdata updated to Olson's tzdata2015a (venkat)
 8524 
 8525 2015-02-20 (bug)[32b615] Fix compiled [lreplace] (lreplace-4.[345]) (aspect)
 8526 
 8527 2015-03-10 (enhancement) Revise OS X notifier for better Cocoa (walzer)
 8528         *** POTENTIAL INCOMPATIBILITY ***
 8529 
 8530 --- Released 8.6.4, March 12, 2015 --- http://core.tcl.tk/tcl/ for details
 8531 
 8532 2015-03-19 (bug)[e66e44] Win: Ctrl-C/Ctrl-Break in console not EOF (nadkarni)
 8533 
 8534 2015-03-21 (bug)[d87cb1] Proper tailcall from compiled ensembles (sofer)
 8535 
 8536 2015-04-23 (bug)[19ea02] Win: shared read from linked dirs (bogdan,oehhar)
 8537 
 8538 2015-04-24 (bug)[879a07] Incomplete chars @ buffer ends (leunissen,porter)
 8539 
 8540 2015-04-29 (bug)[894da1] Hang flushing blocking channels (yorick)
 8541 
 8542 2015-05-14 (enhance)[b9d043] Default use of gzip transfer encoding (fellows)
 8543 => http 2.8.9
 8544         *** POTENTIAL INCOMPATIBILITY ***
 8545 
 8546 2015-05-15 (bug)[9dd1bd] destructor [self] after failed constructor (calvo,fellows)
 8547 
 8548 2015-05-15 (bug)[0f42ff] [tailcall] combined with [next] (aspect,fellows)
 8549 
 8550 2015-05-18 (bug)[c11a51] http: race condition in -accept option (fellows)
 8551 
 8552 2015-05-19 (enhance) More pure lists from compiled [list] (porter,fellows)
 8553 
 8554 2015-05-27 (enhancement) Relax memdebug constraint on extensions (kupries)
 8555 
 8556 2015-06-03 (bug)[268b23] crash in traced [expr] (execute-11.2)(tomkinson,porter)
 8557 
 8558 2015-06-11 (bug)[478c44] Memleak in zlib compresion errors (mistachkin)
 8559 
 8560 2015-06-16 (bug)[e770d9] Higher baud on serial channels (woods,nijtmans)
 8561 
 8562 2015-06-18 (update) Update Unicode data to 8.0 (nijtmans)
 8563         *** POTENTIAL INCOMPATIBILITY ***
 8564 
 8565 2015-06-18 (bug)[a4cb3f] compiled [lreplace] handling of end (bron,aspect)
 8566 
 8567 2015-06-23 (enhance) Use Unicode SendMessageTimeout() (nijtmans)
 8568 => registry 1.3.1
 8569 
 8570 2015-06-25 (TIP 412) msgcat dynamic locale change and package private locale (oehlmann)
 8571 => msgcat 1.6.0
 8572 
 8573 2015-07-05 (bug)[a0ece9] crash in traced [expr] (execute-11.3) (hans,porter)
 8574 
 8575 2015-07-10 (TIP 436) [info object isa] favors 'false' over error (fellows)
 8576 => TclOO 1.0.4
 8577 
 8578 2015-07-15 (bug)[b1534b][9bad63] writes beyond buffer bounds (hanno,porter)
 8579 
 8580 2015-07-18 (bug)[a3309d] Memleak in compiled [unset a($i)] (jeff,porter)
 8581 
 8582 2015-07-23 (bug)[57945b] lock in forking/multi-threading (neumann,mistachkin)
 8583 
 8584 2015-07-29 (bug)[3e7eca] Allocation overflow in expr parsing (rickyb,porter)
 8585 
 8586 2015-07-30 (bug)[f00009] Win: Memleak in [file] (rp,sebres)
 8587 
 8588 2015-07-31 (bug) Correct problems found in Coverity audit (sofer)
 8589 
 8590 2015-08-19 (bug)[00189c] MSVC 14: semi-static UCRT support (dower,nijtmans)
 8591 
 8592 2015-08-26 (bug)[0df7a1] Tolerate getcwd() failures (cato,nijtmans)
 8593 
 8594 2015-09-21 (bug)[1115587][a3c350][d7ea9f][0e0e15][187d7f] Many fixes and
 8595 improvements to regexp engine from Postgres (lane,porter,fellows,seltenreich)
 8596 
 8597 2015-09-23 (enhance) hash lookup microoptimization (hipp)
 8598 
 8599 2015-09-23 (bug)[e0a7b3] Input buffer draining & file events (griffin,porter)
 8600 
 8601 2015-09-29 (bug)[219866] Cygwin support error (yorick,nijtmans)
 8602 => platform 1.0.14
 8603 
 8604 2015-10-06 (bug)[b42a85] Win: [file normalize ~user] wrong dir (nadkarni)
 8605 
 8606 2015-10-21 (bug)[1080042][8f2450] More regexp from Postgres (lane,porter)
 8607 
 8608 2015-10-23 (bug)[4a0c16] [clock] react to msgcat locale change (oehlmann)
 8609 
 8610 2015-11-10 (bug)[261a8a] Overflow segfault in I/O translation (brooks,porter)
 8611 
 8612 2015-11-20 (bug)[40f628] ListObjReplace callers fail to detect max (porter)
 8613 
 8614 2015-11-30 (enhance)[32c574] Improve list growth performance (brooks,porter)
 8615 
 8616 2015-12-11 (bug)[c9eb6b] tolerate unset ::env(TZ) (gahr, nijtmans)
 8617 
 8618 2016-01-29 (TIP 440) tcl_platform(engine) -- Tcl implementation (mistachkin)
 8619 
 8620 2016-02-03 (bug)[25842c] stream [zlib deflate] fails with 0 input (ade,fellows)
 8621 
 8622 2016-02-04 (bug)[3d96b7][593baa][cf74de] crashes in OO teardown (porter,fellows)
 8623 
 8624 2016-02-22 (bug)[9b4702] [info exists env(missing)] kills trace (nijtmans)
 8625 
 8626 --- Released 8.6.5, February 29, 2016 --- http://core.tcl.tk/tcl/ for details
 8627 
 8628 2016-03-01 (bug)[803042] mem leak due to reference cycle (porter)
 8629 
 8630 2016-03-08 (bug)[bbc304] reflected watch race condition (porter)
 8631 
 8632 2016-03-17 (bug)[fadc99] compile-5.3 (rodriguez,porter)
 8633 
 8634 2016-03-17 (enhancement)[1a25fd] compile [variable ${ns}::v] (porter)
 8635 
 8636 2016-03-20 (bug)[1af8de] crash in compiled [string replace] (harder,fellows)
 8637 
 8638 2016-03-21 (bug)[d30718] segv in notifier finalize (hirofumi,nijtmans)
 8639 
 8640 2016-03-23 (enhancement)[7d0db7] parallel make (yarda,nijtmans)
 8641 
 8642 2016-03-23 [f12535] enable test bindings customization (vogel,nijtmans)
 8643 
 8644 2016-04-04 (bug)[47ac84] compiled [lreplace] fixes (aspect,ferrieux,fellows)
 8645         *** POTENTIAL INCOMPATIBILITY ***
 8646 
 8647 2016-04-08 (bug)[866368] RE \w includes 'Punctuation Connector' (nijtmans)
 8648 
 8649 2016-04-08 (bug)[2538f3] Win crash Tcl_OpenTcpServer() (griffin)
 8650 
 8651 2016-04-10 [07d13d] Restore TclBlend support lost in 8.6.1 (buratti)
 8652 
 8653 2016-05-13 (bug)[3154ea] Mem corruption in assembler exceptions (tkob,kenny)
 8654 
 8655 2016-05-13 (bug) registry package support any Unicode env (nijtmans)
 8656 => registry 1.3.2
 8657 
 8658 2016-05-21 (bug)[f7d4e] [namespace delete] performance (fellows)
 8659 
 8660 2016-06-02 (TIP 447) execution time verbosity option (cerutti)
 8661 => tcltest 2.4.0
 8662 
 8663 2016-06-16 (bug)[16828b] crash due to [vwait] trace undo fail (dah,porter)
 8664 
 8665 2016-06-16 (enhancement)[4b61af] good [info frame] from more cases (beric)
 8666 
 8667 2016-06-21 (bug)[c383eb] crash in [glob -path a] (oehlmann,porter)
 8668 
 8669 2016-06-21 (update) Update Unicode data to 9.0 (nijtmans)
 8670         *** POTENTIAL INCOMPATIBILITY ***
 8671 
 8672 2016-06-22 (bug)[16896d] Tcl_DString tolerate append to self. (dah,porter)
 8673 
 8674 2016-06-23 (bug)[d55322] crash in [dict update] (yorick,fellows)
 8675 
 8676 2016-06-27 (bug)[dd260a] crash in [chan configure -dictionary] (madden,aspect)
 8677 
 8678 2016-07-02 (bug)[f961d7] usage message with parameters with spaces (porter)
 8679         *** POTENTIAL INCOMPATIBILITY ***
 8680 
 8681 2016-07-02 (enhancement)[09fabc] Sort order of -relateddir (lanam)
 8682 
 8683 2016-07-07 (bug)[5d7ca0] Win: [file executable] for .cmd and .ps1 (nadkarni)
 8684         *** POTENTIAL INCOMPATIBILITY ***
 8685 
 8686 2016-07-08 (bug)[a47641] [file normalize] & Windows junctions (nadkarni)
 8687 
 8688 2016-07-09 [ae61a6] [file] handling of Win hardcoded names (CON) (nadkarni)
 8689         *** POTENTIAL INCOMPATIBILITY ***
 8690 
 8691 2016-07-09 [3613671] [file owned] (more) useful on Win (nadkarni)
 8692 
 8693 2016-07-09 (bug)[1493a4] [namespace upvar] use of resolvers (beric,fellows)
 8694         *** POTENTIAL INCOMPATIBILITY ***
 8695 
 8696 2016-07-10 (bug)[da340d] integer division in clock math (nadkarni)
 8697 
 8698 2016-07-20 tzdata updated to Olson's tzdata2016f (venkat)
 8699 
 8700 --- Released 8.6.6, July 27, 2016 --- http://core.tcl.tk/tcl/ for details
 8701 
 8702 2016-09-07 (bug)[c09edf] Bad caching with  custom resolver (neumann,nijtmans)
 8703 
 8704 2016-09-07 (bug)[4dbdd9] Memleak in test var-8.3 (mr_calvin,porter)
 8705 
 8706 2016-10-03 (bug)[2bf561] Allow empty command as alias target (yorick,nijtmans)
 8707         *** POTENTIAL INCOMPATIBILITY ***
 8708 
 8709 2016-10-04 (bug)[4d5ae7] Crash in async connects host no address (gahr,fellows)
 8710 
 8711 2016-10-08 (bug)[838e99] treat application/xml as text (gahr,fellows)
 8712 => http 2.8.10
 8713 
 8714 2016-10-11 (bug)[3cc1d9] Thread finalization crash in zippy (neumann)
 8715 
 8716 2016-10-12 (bug)[be003d] Fix [scan 0x1 %b], [scan 0x1 %o] (porter)
 8717 
 8718 2016-10-14 (bug)[eb6b68] Fix stringComp-14.5 (porter)
 8719 
 8720 2016-10-30 (bug)[b26e38] Fix zlib-7.8 (fellows)
 8721 
 8722 2016-10-30 (bug)[1ae129] Fix memleak in [history] destruction (fellows)
 8723 
 8724 2016-11-04 (feature) Provisional Tcl 9 support in msgcat and tcltest (nijtmans)
 8725 => msgcat 1.6.1
 8726 => tcltest 2.4.1
 8727 
 8728 2016-11-04 (bug)[824752] Crash in Tcl_ListObjReplace() (gahr,porter)
 8729 
 8730 2016-11-11 (bug)[79614f] invalidate VFS mounts on sytem encoding change (yorick)
 8731 
 8732 2016-11-14 OSX: End panic() as legacy support macro; system conflicts (nijtmans)
 8733         *** POTENTIAL INCOMPATIBILITY ***
 8734 
 8735 2016-11-15 (bug) TclOO fix stops crash mixing Itcl and snit (fellows)
 8736 
 8737 2016-11-17 (update) Reconcile libtommath updates; purge unused files (nijtmans)
 8738         *** POTENTIAL INCOMPATIBILITY ***
 8739 
 8740 2017-01-09 (bug)[b87ad7] Repair drifts in timer clock (sebres)
 8741 
 8742 2017-01-17 (update) => zlib 1.2.11 (nijtmans)
 8743 
 8744 2017-01-31 (bug)[39f630] Revise Tcl_LinkVar to tolerate some prefixes (nijtmans)
 8745         *** POTENTIAL INCOMPATIBILITY ***
 8746 
 8747 2017-02-01 (bug)[d0f7ba] Improper NAN optimization. expr-22.1[01] (aspect)
 8748 
 8749 2017-02-26 (bug)[25842c] zlib stream finalization (aspect)
 8750 
 8751 2017-03-07 (deprecate) Remove unmaintained makefile.bc file (nijtmans)
 8752         *** POTENTIAL INCOMPATIBILITY ***
 8753 
 8754 2017-03-14 (enhancement) [clock] and [encoding] are now ensembles (kenny)
 8755 
 8756 2017-03-15 (enhancement) several [clock] subcommands bytecoded (kenny)
 8757 
 8758 2017-03-23 tzdata updated to Olson's tzdata2017b (jima)
 8759 
 8760 2017-03-29 (bug)[900cb0] Fix OO unexport introspection (napier)
 8761 
 8762 2017-04-12 (bug)[42202b] Nesting imbalance in coro injection (nadkarni,sebres)
 8763 
 8764 2017-04-18 (bug)[bc4322] http package support for safe interps (nash,nijtmans)
 8765 
 8766 2017-04-28 (bug)[f34cf8] [file join a //b] => /b (neumann,porter)
 8767 
 8768 2017-05-01 (bug)[8bd13f] Windows threads and pipes (sebres,nijtmans)
 8769 
 8770 2017-05-01 (bug)[f9fe90] [file join //a b] EIAS violation (aspect,porter)
 8771 
 8772 2017-05-04 (bug) Make test filesystem-1.52 pass on Windows (nijtmans)
 8773 
 8774 2017-05-05 (bug)[601522] [binary] field spec overflow -> segfault (porter)
 8775 
 8776 2017-05-08 (bug)[6ca52a] http memleak handling keep-alive (aspect,nijtmans)
 8777 => http 2.8.11
 8778 
 8779 2017-05-29 (bug)[a3fb33] crash in [lsort] on long lists (sebres)
 8780 
 8781 2017-06-05 (bug)[67aa9a] Tcl_UtfToUniChar() revised handling invalid UTF-8 (nijtmans)
 8782         *** POTENTIAL INCOMPATIBILITY ***
 8783 
 8784 2017-06-08 (bug)[2738427] Tcl_NumUtfChars() corner case utf-4.9 (nijtmans)
 8785 
 8786 2017-06-22 (update) Update Unicode data to 10.0 (nijtmans)
 8787         *** POTENTIAL INCOMPATIBILITY ***
 8788 
 8789 2017-06-22 (TIP 473) Let [oo::copy] specify target namespace (fellows)
 8790 
 8791 2017-06-26 (bug)[46f801] Repair autoloader fragility (porter)
 8792 
 8793 2017-07-06 (bug)[adb198] Plug memleak in TclJoinPath (sebres,porter)
 8794 
 8795 2017-07-17 (bug)[fb2208] Repeatable tclIndex generation (wiedemann,nijtmans)
 8796 
 8797 --- Released 8.6.7, August 9, 2017 --- http://core.tcl.tk/tcl/ for details
 8798 
 8799 2017-08-10 [array names -regexp] supports backrefs (goth)
 8800 
 8801 2017-08-10 Fix gcc build failures due to #pragma placement (cassoff,fellows)
 8802 
 8803 2017-08-29 (bug)[b50fb2] exec redir append stdout and stderr to file (coulter)
 8804 
 8805 2017-08-31 (bug)[2a9465] http state 100 continue handling broken (oehlmann)
 8806 => http 2.8.12
 8807 
 8808 2017-09-02 (bug)[0e4d88] replace command, delete trace kills namespace (porter)
 8809 
 8810 2017-10-19 (bug)[1a5655] [info * methods] includes mixins (fellows)
 8811 
 8812 2017-10-23 tzdata updated to Olson's tzdata2017c (jima)
 8813 
 8814 2017-10-24 (bug)[fc1409] segfault in method cloning, oo-15.15 (coulter,fellows)
 8815 
 8816 2017-11-03 (bug)[6f2f83] More robust [load] for ReactOS (werner)
 8817 
 8818 2017-11-08 (bug)[3298012] Stop crash when hash tables overflow 32 bits (porter)
 8819 
 8820 2017-11-14 (bug)[5d6de6] Close failing case of [package prefer stable] (kupries)
 8821 
 8822 2017-11-17 (bug)[fab924] Fix misleading [load] message on Windows (oehlmann)
 8823 
 8824 2017-12-05 (bug)[4f6a1e] Crash when ensemble map and list are same (sebres)
 8825 
 8826 2017-12-06 (bug)[ce3a21] file normalize failure when tail is empty (porter)
 8827 
 8828 2017-12-08 (new)[TIP 477] nmake build system reform (nadkarni)
 8829 
 8830 2017-12-19 (bug)[586e71] EvalObjv exception handling at level #0 (sebres,porter)
 8831 
 8832 --- Released 8.6.8, December 22, 2017 --- http://core.tcl.tk/tcl/ for details
 8833 
 8834 2018-02-11 (enhance) stop blocking conversion of object to/from class (coulter)
 8835 
 8836 2018-02-12 (enhance) NR-enable [package require] (coulter)
 8837 
 8838 2018-02-14 (bug)[9fd5c6] crash in object deletion, test oo-11.5 (coulter)
 8839 
 8840 2018-02-14 (bug)[3c32a3] crash deleting object with class mixed in (coulter)
 8841 
 8842 2018-02-15 (platform) stop using -lieee, removed from glibc-2.27 (porter)
 8843 ***POTENTIAL INCOMPATIBILITY for math programs that embed Tcl***
 8844 
 8845 2018-02-23 (bug)[8e6a9a] bad binary [string match], test string-11.55 (porter)
 8846 
 8847 2018-03-05 (bug)[1873ea] repair multi-thread std channel init (sebres)
 8848 
 8849 2018-03-09 (bug)[db36fa] broken bytecode for index values (porter)
 8850 
 8851 2018-03-13 (bug) broken compiled [string replace], test string-14.19 (porter)
 8852 
 8853 2018-03-14 (bug) [string trim*] engine crashed on invalid UTF (sebres)
 8854 
 8855 2018-04-17 (bug) missing trace in compiled [array set], test var-20.11 (porter)
 8856 
 8857 2018-04-22 (bug)[46a241] crash in unset array with search, var-13.[23] (goth)
 8858 
 8859 2018-04-30 (bug)[27b682] race made [file delete] raise "no such file" (sebres)
 8860 
 8861 2018-06-04 (bug)[925643] 32/64 cleanup of filesystem DIR operations (sebres)
 8862 
 8863 2018-06-18 (bug) leaks in TclSetEnv and env cache (coulter)
 8864 
 8865 2018-06-24 (bug)[3592747] [yieldto] dying namespace, tailcall-14.1 (coulter)
 8866 
 8867 2018-07-09 (bug)[270f78] race in [file mkdir] (sebres)
 8868 
 8869 2018-07-12 (bug)[3f7af0] [file delete] raised "permission denied" (sebres)
 8870 
 8871 2018-07-26 (bug)[d051b7] overflow crash in [format] (sebres)
 8872 
 8873 2018-08-29 revised quoting of [exec] args in generated command line (sebres)
 8874 ***POTENTIAL INCOMPATIBILITY***
 8875 
 8876 2018-09-20 HTTP Keep-Alive with pipelined requests (nash)
 8877 => http 2.9.0
 8878 
 8879 2018-09-27 (new)[TIP 505] [lreplace] accepts all out of range indices (porter)
 8880 
 8881 2018-10-04 (bug) Prevent crash from NULL keyName (nijtmans)
 8882 => registry 1.3.3
 8883 
 8884 2018-10-26 (enhance) advance dde version (nijtmans)
 8885 => dde 1.4.1
 8886 
 8887 2018-10-27 tzdata updated to Olson's tzdata2018g (jima)
 8888 
 8889 2018-10-29 Update tcltest package for Travis support (fellows)
 8890 => tcltest 2.5.0
 8891 
 8892 2018-11-09 (bug)[35a8f1] overlong string length of some lists (owens)
 8893 
 8894 2018-11-16 (bug)[00d04c] Repair [binary encode base64] (sebres)
 8895 
 8896 - Released 8.6.9, November 16, 2018 - details at http://core.tcl-lang.org/tcl/ -