What version of Perl introduced lexical my subroutines?

According to this bug report one of my modules is generating this error on older Perls,

Experimental "my" subs not enabled at <file.pm> ...

What should I set my minimum perl version too?

Solution

From perldoc perlexperiment

Lexical subroutines

Introduced in Perl 5.18.0

Accepted in Perl 5.26.0

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