Answering my own question and with due thanks to Wikipedia, yes it is: https://en.wikipedia.org/wiki/New_Wine_into_Old_Wineskins (Side note: Anon commenters are not allowed to link to Wikipedia, really? And the only indication of this is a "permission denied. Tough beans" message, really?)

2019-10-20 Athanasius linkified the link.

In reply to Re^2: TimToady Approved renaming Perl6 to Raku by Anonymous Monk
in thread TimToady Approved renaming Perl6 to Raku by wazoox

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