I think you get that (and some more stuff) by having use 5.12; at the top of your script?

I think that the reluctance to having it opt-out is that it would break backwards compatibility in a big way.

In reply to Re^2: If Perl 5 were to become Perl 7, what (backward-compatible) features would you want to see? by Corion
in thread If Perl 5 were to become Perl 7, what (backward-compatible) features would you want to see? by haukex

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