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authorpmichaud <pmichaud@pobox.com>2012-09-26 11:13:27 -0500
committerpmichaud <pmichaud@pobox.com>2012-09-26 11:13:27 -0500
commit27a8b2028b864130d0e0e9104e5a2ae15249c12b (patch)
parent67cc1c082049a39de56916c7f608a6f3bf20ac47 (diff)
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+Announce: Rakudo Star - a useful, usable, "early adopter" distribution of Perl 6
+On behalf of the Rakudo and Perl 6 development teams, I'm happy to
+announce the September 2012 release of "Rakudo Star", a useful and
+usable distribution of Perl 6. The tarball for the September 2012
+release is available from <http://github.com/rakudo/star/downloads>.
+A Windows .MSI version of Rakudo star will usually appear in
+the downloads area shortly after the tarball release.
+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 2012.09 [0] of the
+Rakudo Perl 6 compiler [1], version 4.8 of the Parrot Virtual
+Machine [2], and various modules, documentation, and other
+resources collected from the Perl 6 community.
+Some of the new features added to this release include:
+* Basic macro support!
+* Support for Perl 5 (m:P5/.../) regex syntax!
+* Indirect type names in routine and type declarations are supported.
+* We now support the "is export" trait on constant declarations.
+* Str.wordcase is now implemented.
+* Compilation is now slightly faster than before.
+* Tie-breaking with constraints now selects the first matching
+ constraint rather than demanding mutual exclusion.
+This release also contains a range of bug fixes, improvements to error
+reporting and better failure modes. More exceptions are thrown as typed
+exceptions, and more meta-model errors have been fixed to properly
+report line numbers.
+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:
+* Iterable is now a role instead of a class, and no longer inherits
+ from Cool.
+* Parameters preceded by a | or \ can no longer have a sigil.
+* IO::Path.dir (which returns the directory part of the path) has been
+ renamed to IO::Path.directory. IO::Path.dir will be removed or
+ re-purposed.
+* The Str.ucfirst builtin is deprecated; it will be replaced by Str.tc.
+* The (experimental) LAZY statement prefix will soon be removed.
+* 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.
+* 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.
+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:
+ * 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
+There is an online resource at http://perl6.org/compilers/features
+that lists the known implemented and missing features of Rakudo Star
+2012.08 and other Perl 6 implementations.
+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>.
+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.
+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.
+[0] https://github.com/rakudo/rakudo/blob/nom/docs/announce/2012.09
+[1] http://github.com/rakudo/rakudo
+[2] http://parrot.org/