[14] Announcing Perl 7 (2020-06-25 00:49:51 +09:00) https://www.perl.com/article/announcing-perl-7/

[20] What happened to Perl 7? | Perl Steering Council [blogs.perl.org], 2023-09-11T19:40:13.000Z, 2025-09-12T06:35:03.775Z https://blogs.perl.org/users/psc/2022/05/what-happened-to-perl-7.html