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Member "emacs-25.3/doc/misc/gnus-news.texi" (14 Apr 2017, 14035 Bytes) of package /linux/misc/emacs-25.3.tar.xz:


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    1 @c -*-texinfo-*-
    2 
    3 @c Copyright (C) 2004-2017 Free Software Foundation, Inc.
    4 
    5 @c    Permission is granted to anyone to make or distribute verbatim copies
    6 @c    of this document as received, in any medium, provided that the
    7 @c    copyright notice and this permission notice are preserved,
    8 @c    thus giving the recipient permission to redistribute in turn.
    9 
   10 @c    Permission is granted to distribute modified versions
   11 @c    of this document, or of portions of it,
   12 @c    under the above conditions, provided also that they
   13 @c    carry prominent notices stating who last changed them.
   14 
   15 @c This file contains a list of news features Gnus.  It is supposed to be
   16 @c included in 'gnus.texi'.  'GNUS-NEWS' is automatically generated from
   17 @c this file (see 'gnus-news.el').
   18 
   19 @itemize @bullet
   20 
   21 @item Supported Emacs versions
   22 The following Emacs versions are supported by No Gnus:
   23 @itemize @bullet
   24 
   25 @item Emacs 22 and up
   26 @item XEmacs 21.4
   27 @item XEmacs 21.5
   28 @item SXEmacs
   29 
   30 @end itemize
   31 
   32 @item Installation changes
   33 
   34 @itemize @bullet
   35 @item Upgrading from previous (stable) version if you have used No Gnus.
   36 
   37 If you have tried No Gnus (the unstable Gnus branch leading to this
   38 release) but went back to a stable version, be careful when upgrading
   39 to this version.  In particular, you will probably want to remove the
   40 @file{~/News/marks} directory (perhaps selectively), so that flags are
   41 read from your @file{~/.newsrc.eld} instead of from the stale marks
   42 file, where this release will store flags for nntp.  See a later entry
   43 for more information about nntp marks.  Note that downgrading isn't
   44 safe in general.
   45 
   46 @item Incompatibility when switching from Emacs 23 to Emacs 22 
   47 In Emacs 23, Gnus uses Emacs's new internal coding system @code{utf-8-emacs}
   48 for saving articles drafts and @file{~/.newsrc.eld}.  These files may not
   49 be read correctly in Emacs 22 and below.  If you want to use Gnus across
   50 different Emacs versions, you may set @code{mm-auto-save-coding-system}
   51 to @code{emacs-mule}.
   52 @c FIXME: Untested.  (Or did anyone test it?)
   53 @c Cf. http://thread.gmane.org/gmane.emacs.gnus.general/66251/focus=66344
   54 
   55 @item Lisp files are now installed in @file{.../site-lisp/gnus/} by default.
   56 It defaulted to @file{.../site-lisp/} formerly.  In addition to this,
   57 the new installer issues a warning if other Gnus installations which
   58 will shadow the latest one are detected.  You can then remove those
   59 shadows manually or remove them using @code{make
   60 remove-installed-shadows}.
   61 
   62 @item The installation directory name is allowed to have spaces and/or tabs.
   63 @end itemize
   64 
   65 @item New packages and libraries within Gnus
   66 
   67 @itemize @bullet
   68 
   69 @item New version of @code{nnimap}
   70 
   71 @code{nnimap} has been reimplemented in a mostly-compatible way.  See
   72 the Gnus manual for a description of the new interface.  In
   73 particular, @code{nnimap-inbox} and the client side split method has
   74 changed.
   75 
   76 @item Gnus includes the Emacs Lisp @acronym{SASL} library.
   77 
   78 This provides a clean @acronym{API} to @acronym{SASL} mechanisms from
   79 within Emacs.  The user visible aspects of this, compared to the earlier
   80 situation, include support for @acronym{DIGEST}-@acronym{MD5} and
   81 @acronym{NTLM}.   @xref{Top, ,Emacs SASL, sasl, Emacs SASL}.
   82 
   83 @item ManageSieve connections uses the @acronym{SASL} library by default.
   84 
   85 The primary change this brings is support for @acronym{DIGEST-MD5} and
   86 @acronym{NTLM}, when the server supports it.
   87 
   88 @item Gnus includes a password cache mechanism in password.el.
   89 
   90 It is enabled by default (see @code{password-cache}), with a short
   91 timeout of 16 seconds (see @code{password-cache-expiry}).  If
   92 @acronym{PGG} is used as the @acronym{PGP} back end, the @acronym{PGP}
   93 passphrase is managed by this mechanism.  Passwords for ManageSieve
   94 connections are managed by this mechanism, after querying the user
   95 about whether to do so.
   96 
   97 @item Using EasyPG with Gnus
   98 When EasyPG, is available, Gnus will use it instead of @acronym{PGG}.
   99 EasyPG is an Emacs user interface to GNU Privacy Guard.  @xref{Top,
  100 ,EasyPG Assistant user's manual, epa, EasyPG Assistant user's manual}.
  101 EasyPG is included in Emacs 23 and available separately as well.
  102 @end itemize
  103 
  104 @item Changes in group mode
  105 @c ************************
  106 
  107 @itemize @bullet
  108 
  109 @item
  110 Symbols like @code{gcc-self} now have the same precedence rules in
  111 @code{gnus-parameters} as other ``real'' variables: The last match
  112 wins instead of the first match.
  113 
  114 @item
  115 Old intermediate incoming mail files (@file{Incoming*}) are deleted
  116 after a couple of days, not immediately.  @xref{Mail Source
  117 Customization}.
  118 (New in Gnus 5.10.10 / No Gnus 0.8)
  119 @c This entry is also present in the node "Oort Gnus".
  120 
  121 @end itemize
  122 
  123 @item Changes in summary and article mode
  124 
  125 @itemize @bullet
  126 
  127 @item There's now only one variable that determines how @acronym{HTML}
  128 is rendered: @code{mm-text-html-renderer}.
  129 
  130 @item Gnus now supports sticky article buffers.  Those are article buffers
  131 that are not reused when you select another article.  @xref{Sticky
  132 Articles}.
  133 
  134 @c @item Bookmarks
  135 @c FIXME: To be added
  136 
  137 @item Gnus can selectively display @samp{text/html} articles
  138 with a WWW browser with @kbd{K H}.  @xref{MIME Commands}.
  139 
  140 @c gnus-registry-marks
  141 @c FIXME: To be added
  142 
  143 @item International host names (@acronym{IDNA}) can now be decoded
  144 inside article bodies using @kbd{W i}
  145 (@code{gnus-summary-idna-message}).  This requires that GNU Libidn
  146 (@url{http://www.gnu.org/software/libidn/}) has been installed.
  147 @c FIXME: Also mention @code{message-use-idna}?
  148 
  149 @item The non-@acronym{ASCII} group names handling has been much
  150 improved.  The back ends that fully support non-@acronym{ASCII} group
  151 names are now @code{nntp}, @code{nnml}, and @code{nnrss}.  Also the
  152 agent, the cache, and the marks features work with those back ends.
  153 @xref{Non-ASCII Group Names}.
  154 
  155 @item Gnus now displays @acronym{DNS} master files sent as text/dns
  156 using dns-mode.
  157 
  158 @item Gnus supports new limiting commands in the Summary buffer:
  159 @kbd{/ r} (@code{gnus-summary-limit-to-replied}) and @kbd{/ R}
  160 (@code{gnus-summary-limit-to-recipient}).  @xref{Limiting}.
  161 
  162 @item You can now fetch all ticked articles from the server using
  163 @kbd{Y t} (@code{gnus-summary-insert-ticked-articles}).  @xref{Summary
  164 Generation Commands}.
  165 
  166 @item Gnus supports a new sort command in the Summary buffer:
  167 @kbd{C-c C-s C-t} (@code{gnus-summary-sort-by-recipient}).  @xref{Summary
  168 Sorting}.
  169 
  170 @item @acronym{S/MIME} now features @acronym{LDAP} user certificate searches.
  171 You need to configure the server in @code{smime-ldap-host-list}.
  172 
  173 @item URLs inside Open@acronym{PGP} headers are retrieved and imported
  174 to your PGP key ring when you click on them.
  175 
  176 @item
  177 Picons can be displayed right from the textual address, see
  178 @code{gnus-picon-style}.  @xref{Picons}.
  179 
  180 @item @acronym{ANSI} @acronym{SGR} control sequences can be transformed
  181 using @kbd{W A}.
  182 
  183 @acronym{ANSI} sequences are used in some Chinese hierarchies for
  184 highlighting articles (@code{gnus-article-treat-ansi-sequences}).
  185 
  186 @item Gnus now MIME decodes articles even when they lack "MIME-Version" header.
  187 This changes the default of @code{gnus-article-loose-mime}.
  188 
  189 @item @code{gnus-decay-scores} can be a regexp matching score files.
  190 For example, set it to @samp{\\.ADAPT\\'} and only adaptive score files
  191 will be decayed.  @xref{Score Decays}.
  192 
  193 @item Strings prefixing to the @code{To} and @code{Newsgroup} headers in
  194 summary lines when using @code{gnus-ignored-from-addresses} can be
  195 customized with @code{gnus-summary-to-prefix} and
  196 @code{gnus-summary-newsgroup-prefix}.  @xref{To From Newsgroups}.
  197 
  198 @item You can replace @acronym{MIME} parts with external bodies.
  199 See @code{gnus-mime-replace-part} and @code{gnus-article-replace-part}.
  200 @xref{MIME Commands}, @ref{Using MIME}.
  201 
  202 @item
  203 The option @code{mm-fill-flowed} can be used to disable treatment of
  204 format=flowed messages.  Also, flowed text is disabled when sending
  205 inline @acronym{PGP} signed messages.  @xref{Flowed text, ,Flowed text,
  206 emacs-mime, The Emacs MIME Manual}.  (New in Gnus 5.10.7)
  207 @c This entry is also present in the node "Oort Gnus".
  208 
  209 @item Now the new command @kbd{S W}
  210 (@code{gnus-article-wide-reply-with-original}) for a wide reply in the
  211 article buffer yanks a text that is in the active region, if it is set,
  212 as well as the @kbd{R} (@code{gnus-article-reply-with-original}) command.
  213 Note that the @kbd{R} command in the article buffer no longer accepts a
  214 prefix argument, which was used to make it do a wide reply.
  215 @xref{Article Keymap}.
  216 
  217 @item The new command @kbd{C-h b}
  218 (@code{gnus-article-describe-bindings}) used in the article buffer now
  219 shows not only the article commands but also the real summary commands
  220 that are accessible from the article buffer.
  221 
  222 @end itemize
  223 
  224 @item Changes in Message mode
  225 
  226 @itemize @bullet
  227 @item Gnus now defaults to saving all outgoing messages in per-month
  228 nnfolder archives.
  229 
  230 @item Gnus now supports the ``hashcash'' client puzzle anti-spam mechanism.
  231 Use @code{(setq message-generate-hashcash t)} to enable.
  232 @xref{Hashcash}.
  233 
  234 @item You can now drag and drop attachments to the Message buffer.
  235 See @code{mml-dnd-protocol-alist} and @code{mml-dnd-attach-options}.
  236 @xref{MIME, ,MIME, message, Message Manual}.
  237 
  238 @item The option @code{message-yank-empty-prefix} now controls how
  239 empty lines are prefixed in cited text.  @xref{Insertion Variables,
  240 ,Insertion Variables, message, Message Manual}.
  241 
  242 @item Gnus uses narrowing to hide headers in Message buffers.
  243 The @code{References} header is hidden by default.  To make all
  244 headers visible, use @code{(setq message-hidden-headers nil)}.
  245 @xref{Message Headers, ,Message Headers, message, Message Manual}.
  246 
  247 @item You can highlight different levels of citations like in the
  248 article buffer.  See @code{gnus-message-highlight-citation}.
  249 
  250 @item @code{auto-fill-mode} is enabled by default in Message mode.
  251 See @code{message-fill-column}.  @xref{Various Message Variables, ,
  252 Message Headers, message, Message Manual}.
  253 
  254 @item You can now store signature files in a special directory
  255 named @code{message-signature-directory}.
  256 
  257 @item The option @code{message-citation-line-format} controls the format
  258 of the "Whomever writes:" line.  You need to set
  259 @code{message-citation-line-function} to
  260 @code{message-insert-formatted-citation-line} as well.
  261 @end itemize
  262 
  263 @item Changes in Browse Server mode
  264 
  265 @itemize @bullet
  266 @item Gnus' sophisticated subscription methods are now available in
  267 Browse Server buffers as well using the variable
  268 @code{gnus-browse-subscribe-newsgroup-method}.
  269 
  270 @end itemize
  271 
  272 
  273 @item Changes in back ends
  274 
  275 @itemize @bullet
  276 @item The nntp back end stores article marks in @file{~/News/marks}.
  277 
  278 The directory can be changed using the (customizable) variable
  279 @code{nntp-marks-directory}, and marks can be disabled using the
  280 (back end) variable @code{nntp-marks-is-evil}.  The advantage of this
  281 is that you can copy @file{~/News/marks} (using rsync, scp or
  282 whatever) to another Gnus installation, and it will realize what
  283 articles you have read and marked.  The data in @file{~/News/marks}
  284 has priority over the same data in @file{~/.newsrc.eld}.
  285 
  286 @item
  287 You can import and export your @acronym{RSS} subscriptions from
  288 @acronym{OPML} files.  @xref{RSS}.
  289 
  290 @item @acronym{IMAP} identity (@acronym{RFC} 2971) is supported.
  291 
  292 By default, Gnus does not send any information about itself, but you can
  293 customize it using the variable @code{nnimap-id}.
  294 
  295 @item The @code{nnrss} back end now supports multilingual text.
  296 Non-@acronym{ASCII} group names for the @code{nnrss} groups are also
  297 supported.  @xref{RSS}.
  298 
  299 @item Retrieving mail with @acronym{POP3} is supported over @acronym{SSL}/@acronym{TLS} and with StartTLS.
  300 
  301 @item The nnml back end allows other compression programs beside @file{gzip}
  302 for compressed message files.  @xref{Mail Spool}.
  303 
  304 @item The nnml back end supports group compaction.
  305 
  306 This feature, accessible via the functions
  307 @code{gnus-group-compact-group} (@kbd{G z} in the group buffer) and
  308 @code{gnus-server-compact-server} (@kbd{z} in the server buffer)
  309 renumbers all articles in a group, starting from 1 and removing gaps.
  310 As a consequence, you get a correct total article count (until
  311 messages are deleted again).
  312 
  313 @c @item nnmairix.el
  314 @c FIXME
  315 
  316 @c @item nnir.el
  317 @c FIXME
  318 
  319 @end itemize
  320 
  321 @item Appearance
  322 @c Maybe it's not worth to separate this from "Miscellaneous"?
  323 
  324 @itemize @bullet
  325 
  326 @item The tool bar has been updated to use GNOME icons.
  327 You can also customize the tool bars: @kbd{M-x customize-apropos RET
  328 -tool-bar$} should get you started.  (Only for Emacs, not in XEmacs.)
  329 @c FIXME: Document this in the manual
  330 
  331 @item The tool bar icons are now (de)activated correctly
  332 in the group buffer, see the variable @code{gnus-group-update-tool-bar}.
  333 Its default value depends on your Emacs version.
  334 @c FIXME: Document this in the manual
  335 
  336 @item You can change the location of XEmacs's toolbars in Gnus buffers.
  337 See @code{gnus-use-toolbar} and @code{message-use-toolbar}.
  338 
  339 @end itemize
  340 
  341 @item Miscellaneous changes
  342 
  343 @itemize @bullet
  344 @item Having edited the select-method for the foreign server in the
  345 server buffer is immediately reflected to the subscription of the groups
  346 which use the server in question.  For instance, if you change
  347 @code{nntp-via-address} into @samp{bar.example.com} from
  348 @samp{foo.example.com}, Gnus will connect to the news host by way of the
  349 intermediate host @samp{bar.example.com} from next time.
  350 
  351 @item The @file{all.SCORE} file can be edited from the group buffer
  352 using @kbd{W e}.
  353 
  354 @item You can set @code{gnus-mark-copied-or-moved-articles-as-expirable}
  355 to a non-@code{nil} value so that articles that have been read may be
  356 marked as expirable automatically when copying or moving them to a group
  357 that has auto-expire turned on.  The default is @code{nil} and copying
  358 and moving of articles behave as before; i.e., the expirable marks will
  359 be unchanged except that the marks will be removed when copying or
  360 moving articles to a group that has not turned auto-expire on.
  361 @xref{Expiring Mail}.
  362 
  363 @item NoCeM support has been removed.
  364 
  365 @item Carpal mode has been removed.
  366 
  367 @end itemize
  368 
  369 @end itemize
  370 
  371 @c gnus-news.texi ends here.