Re^2: Perl allows package names consisting entirely of colons

It was introduced in Perl 5.14. Perl 5.12 also introduced package NAME VERSION. The two can be combined, a la:

package Foo::Bar 1.2 {
   ...;
}
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perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

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