On behalf of the Rakudo development team, I'm pleased to announce the June 2009 development release of Rakudo Perl #18 "Pittsburgh". Rakudo is an implementation of Perl 6 on the Parrot Virtual Machine. The tarball for the June 2009 release is available from http://github.com/rakudo/rakudo/downloads .
Due to the continued rapid pace of Rakudo development and the frequent addition of new Perl 6 features and bugfixes, we continue to recommend that people wanting to use or work with Rakudo obtain the latest source directly from the main repository at github. More details are available at http://rakudo.org/how-to-get-rakudo .
Rakudo Perl follows a monthly release cycle, with each release code named after a Perl Mongers group. This release is named "Pittsburgh", which is the host for YAPC|10 (YAPC::NA 2009) and the Parrot Virtual Machine Workshop. Pittsburgh.pm has also sponsored hackathons for Rakudo Perl as part of the 2008 Pittsburgh Perl Workshop.
In this release of Rakudo Perl, we've focused our efforts on refactoring many of Rakudo's internals; these refactors improve performance, bring us closer to the Perl 6 specification, operate more cleanly with Parrot, and provide a stronger foundation for features to be implemented in the near future. Some of the specific major changes and improvements in this release include:
The development team thanks all of our contributors and sponsors for making Rakudo Perl possible. If you would like to contribute, see http://rakudo.org/how-to-help , ask on the email@example.com mailing list, or ask on IRC #perl6 on freenode.
The next release of Rakudo (#19) is scheduled for July 23, 2009. A list of the other planned release dates and codenames for 2009 is available in the "docs/release_guide.pod" file. In general, Rakudo development releases are scheduled to occur two days after each Parrot monthly release. Parrot releases the third Tuesday of each month.
 Parrot, http://parrot.org/
 YAPC|10 http://yapc10.org/yn2009/
 Parrot Virtual Machine Workshop, http://yapc10.org/yn2009/talk/2045
 Pittsburgh Perl Workshop, http://pghpw.org/ppw2008/