Some Perl 6 changes from Perl 5
✓ pervasive unicode support
✓ formal parameter lists in subroutines and methods
✓ named arguments
✓ declarative classes, and prototype-based objects
→ see Jonathan Worthington's 13:30 talk!
✓ type checking
→ see Jonathan Worthington's 14:10 talk!
✓ subroutine overloading
✓ named regexes
✓ grammars
✓ multimethod dispatch
✓ junctions and superpositions
✓ == currently available in Rakudo (Aug 2008)