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    1     Announce: Rakudo Perl 6 compiler development release #51 ("Brazos Valley")
    2 
    3 On behalf of the Rakudo development team, I'm happy to announce the
    4 April 2012 release of Rakudo Perl #51 "Brazos Valley". Rakudo is an
    5 implementation of Perl 6 on the Parrot Virtual Machine (see 
    6 <http://www.parrot.org>). The tarball for this release
    7 is available from <http://github.com/rakudo/rakudo/downloads>.
    8 
    9 Please note: This announcement is not for the Rakudo Star
   10 distribution[*] -- it's announcing a new release of the compiler only.
   11 For the latest Rakudo Star release, see
   12 <http://github.com/rakudo/star/downloads>.
   13 
   14 The Rakudo Perl compiler follows a monthly release cycle, with each
   15 release named after a Perl Mongers group. The April 2012 release is
   16 code named after Brazos Valley, because they sponsored a Perl 6
   17 Hackathon. Thanks!
   18 
   19 Some of the specific changes and improvements occurring with this
   20 release include:
   21 
   22 * Support for pseudo packages like MY, OUR, DYNAMIC
   23 * Support for indexing into packages like hashes, e.g. Foo::{'$x'}
   24 * Warnings now include line numbers
   25 * Assorted minor optimizations to compilation, Str methods and iteration
   26 * Now passing over 21,400 spec tests.
   27 
   28 We are still regressed on a few features compared to the 2011.07 release of
   29 Rakudo, the most notable of which is autovivification. 
   30 These regressions will be rectified in coming releases.
   31 
   32 Two incompatible changes in this release are notable:
   33 * $?POD has been renamed to $?pod
   34 * 'defined' used to be a prefix operator, it is now an ordinary
   35   subroutine. Code like 'defined $a ?? $b !! $c' should be rewritten
   36   to use 'defined($a)' or '$a.defined' instead.
   37 
   38 For a more detailed list of changes, see "docs/ChangeLog".
   39 
   40 The development team thanks all of our contributors and sponsors for
   41 making Rakudo Perl possible, as well as those people who worked on 
   42 Parrot, the Perl 6 test suite and the specification.
   43 
   44 The following people contributed to this release:
   45 
   46 Moritz Lenz, Jonathan Worthington, Patrick R. Michaud, Carl Mäsak,
   47 Timo Paulssen, Tadeusz Sośnierz, Felix Herrmann, spider-mario, benabik,
   48 timotimo, TimToady and  Will "Coke" Coleda.
   49 
   50 If you would like to contribute, see <http://rakudo.org/how-to-help>,
   51 ask on the perl6-compiler@perl.org mailing list, or ask on IRC #perl6
   52 on freenode.
   53 
   54 The next release of Rakudo (#52) is scheduled for May 17, 2012. A
   55 list of the other planned release dates and code names for 2012 is
   56 available in the "docs/release_guide.pod" file. In general, Rakudo
   57 development releases are scheduled to occur soon after each Parrot
   58 monthly release. Parrot releases the third Tuesday of each month.
   59 
   60 On behalf of the development team, I encourage you to try the new release.
   61 have fun, and let us know about your experience.
   62 
   63 [*] What's the difference between the Rakudo compiler and the Rakudo
   64     Star distribution?  
   65 
   66     The Rakudo compiler is a compiler for the Perl 6 language.
   67     Nothing else.
   68 
   69     The Rakudo Star distribution is the Rakudo compiler plus a selection
   70     of useful Perl 6 modules, the most recent incarnation of the "Using
   71     Perl 6" book, and other software that can be used with the Rakudo
   72     compiler to enhance its utility.  Rakudo Star is meant for early
   73     adopters who wish to explore what's possible with Rakudo Perl 6 and
   74     provide feedback on what works, what doesn't, and what else they
   75     would like to see included in the distribution.