I haven't followed Perl development in a while, but I remember there was a briefly hyped "Perl 7" announcement. Did that plan get dropped?
"At some point in the future, the PSC may decide that the set of features, taken together, represent a big enough step forward to justify a new baseline for Perl. If that happens, then the version will be bumped to 7.0."
https://blogs.perl.org/users/psc/2022/05/what-happened-to-pe...