[darrenf]

> and are still considered experimental

No, 5.36 stabilised them.

https://perldoc.perl.org/perldelta#Core-Enhancements

> The 5.36 bundle enables the signatures feature. Introduced in Perl version 5.20.0, and modified several times since, the subroutine signatures feature is now no longer considered experimental. It is now considered a stable language feature and no longer prints a warning.

[jandrese]

Oh, that's a bummer. I was kind of excited to use those, but since I never know when I'm going to get a call from the Centos 7 guys I have to stay away from features newer than 5.016. Basically just new enough to get semi-sane UTF support.

[duskwuff]

Ah! Looks like I need to upgrade, then -- I was reading from "perldoc feature" in my install, which was still on 5.34.