in reply to
A question about PERL versioning.
The help for say says this :-
This keyword is available only when the "say" feature is enabled,
or when prefixed with "CORE::"; see feature. Alternately, include
a "use v5.10" or later to the current scope.
Priority 1, Priority 2, Priority 3
Priority 1, Priority 0, Priority -1
Urgent, important, favour
Data loss, bug, enhancement
Out of scope, out of budget, out of line
Family, friends, work
Impossible, inconceivable, implemented
Results (88 votes),