There seems to be a parallel with Arc here (though Arc's still running on top of Scheme): both languages are new versions of mature languages (Perl 5 and CL) wh

There seems to be a parallel with Arc here (though Arc's still running on top of Scheme): both languages are new versions of mature languages (Perl 5 and CL) which are/will be languishing in not-quite-final versions for the community to comment on. Is there a precedent for this as far as languages go? How did it end? What should the Perl people do after this April release to get to 6.0 and not stay in limbo?