A quick perusal through the docs for ref for historical versions of Perl suggests that the Regexp class started being reported in 5.8.9 but this is not mentioned in the 5.8.9 delta AFAICS. Nowadays that really ought to be so long ago that it doesn't matter anyway.

🦛

In reply to Re^2: Perl named operators and builtin subs introduced since 5.6 by hippo
in thread Finding when a feature or keyword was introduced by Bod

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