I think the difference between Perl 5.10 (2007) and 5.26 (2017) is bigger than difference between the Python 2 of 2007, and Python 3 of 2017

The difference between Perl 5 and Perl 6 is probably about 10x the difference between Perl 5.10 and 5.26

I like to explain it this way:

Perl 4 is to C

as Perl 5 is to C++

as Perl 6 is to Haskell/Smalltalk/C#/Swift/Julia…