[emmelaich]

My guess is that "perl6 1.something" will be followed by "perl 6.something". But that would require an enormous amount of compatibility with perl5.

[kbenson]

Well, with Inline::Perl5 and "use p5", that may not be entirely unfeasible. You can read more about Inline::Perl5 here[1], but the TL;DR is that it uses a Perl 5 interpreter along with Perl 6 to pass code back and forth, allowing pure perl modules and modules that interface with libraries to run fairly smoothly in Perl 6. There's also an Inline::Python that works the same way...

1: http://niner.name/talks/Leapfrogging%20the%20bootstrap/Leapf...