> (yes, I know they have functional snapshot builds, but as long as there’s not a final "6.0" (or "1.0") release, expect most devs to steer clear of it. Few people (masochists, mostly) want to use an ‘experimental’ programming language for important work).
The “1.0” for the Perl 6 spec (6.c, because reasons) was released in 2015; the stable implementation in Rakudo was a little later but years ago. Current Rakudo has a stable, production-ready implementation of last year's 6.d version of the language spec. So we’re well past the threshold you suggest.