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draft release announcement for 2013.02
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| Announce: Rakudo Star - a useful, usable, "early adopter" distribution of Perl 6 | ||
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| On behalf of the Rakudo and Perl 6 development teams, I'm happy to | ||
| announce the February 2013 release of "Rakudo Star", a useful and | ||
| usable distribution of Perl 6. The tarball for the February 2013 | ||
| release is available from <http://rakudo.org/downloads/star/>. | ||
| A Windows .MSI version of Rakudo star will usually appear in | ||
| the downloads area shortly after the tarball release. | ||
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| In the Perl 6 world, we make a distinction between the language | ||
| ("Perl 6") and specific implementations of the language such as | ||
| "Rakudo Perl". This Star release includes release 2013.02.1 [0] of the | ||
| Rakudo Perl 6 compiler [1], version 4.10.0 of the Parrot Virtual | ||
| Machine [2], and various modules, documentation, and other | ||
| resources collected from the Perl 6 community. | ||
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| Some of the new features added to this release include: | ||
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| * "Did you mean ..." suggestions for symbol-not-found errors | ||
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| * Compile-time optimization of some cases of junctions in boolean context | ||
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| * IO::Socket.get now works again with non-ASCII characters | ||
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| * constant folding for routines marked as 'is pure' | ||
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| * natively typed variables and better error reporting in the REPL | ||
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| * speed up eqv-comparison of Bufs | ||
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| * warnings for useless use of (some) literals, variables and constant | ||
| expressions in sink context | ||
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| This release also contains a range of bug fixes, improvements to error reporting | ||
| and better failure modes. | ||
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| The following features have been deprecated or modified from previous | ||
| releases due to changes in the Perl 6 specification, and are being removed | ||
| or changed as follows: | ||
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| * .gist on a type object will return '(Typename)' instead of 'Typename()'. | ||
| If you want to get the class name directly, use $obj.^name | ||
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| * postcircumfix:<[ ]> and postcircumfix:<{ }> will become multi-subs rather | ||
| than multi-methods. Both at_pos and at_key will remain methods. | ||
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| * Unary hyper ops currently descend into nested arrays and hashes. | ||
| This will change to make them equivalent to a one-level map. | ||
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| * The Str.ucfirst builtin is deprecated; it will be replaced by Str.tc. | ||
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| * Leading whitespace in rules and under :sigspace will no longer be | ||
| converted to <.ws> . For existing regexes that expect this conversion, | ||
| add a <?> in front of leading whitespace to make it meta again. | ||
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| * The ?-quantifier on captures in regexes currently binds the capture | ||
| slot to a List containing either zero or one Match objects; i.e., it | ||
| is equivalent to "** 0..1". In the future, the ?-quantifier will | ||
| bind the slot directly to a captured Match or to Nil. Existing code | ||
| can manage the transition by changing existing ?-quantifiers to | ||
| use "** 0..1", which will continue to return a List of matches. | ||
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| There are some key features of Perl 6 that Rakudo Star does not | ||
| yet handle appropriately, although they will appear in upcoming | ||
| releases. Some of the not-quite-there features include: | ||
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| * advanced macros | ||
| * threads and concurrency | ||
| * Unicode strings at levels other than codepoints | ||
| * interactive readline that understands Unicode | ||
| * non-blocking I/O | ||
| * much of Synopsis 9 | ||
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| There is an online resource at http://perl6.org/compilers/features | ||
| that lists the known implemented and missing features of Rakudo | ||
| and other Perl 6 implementations. | ||
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| In many places we've tried to make Rakudo smart enough to inform the | ||
| programmer that a given feature isn't implemented, but there are | ||
| many that we've missed. Bug reports about missing and broken | ||
| features are welcomed at <rakudobug@perl.org>. | ||
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| See http://perl6.org/ for links to much more information about | ||
| Perl 6, including documentation, example code, tutorials, reference | ||
| materials, specification documents, and other supporting resources. | ||
| A draft of a Perl 6 book is available as <docs/UsingPerl6-draft.pdf> | ||
| in the release tarball. | ||
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| The development team thanks all of the contributors and sponsors | ||
| for making Rakudo Star possible. If you would like to contribute, | ||
| see <http://rakudo.org/how-to-help>, ask on the perl6-compiler@perl.org | ||
| mailing list, or join us on IRC #perl6 on freenode. | ||
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| [0] https://github.com/rakudo/rakudo/blob/nom/docs/announce/2013.01 | ||
| [1] http://github.com/rakudo/rakudo | ||
| [2] http://parrot.org/ |