There is a perldelta included in every recent perl release (since at least 5.004) summing up the differences with the previous versions.
Some perldelta pages are available on perldoc.com so you don't have to get all Perl versions to get all the perldelta.
However, the fact that you have to ask here for reasons seems to be you don't have a cause.
It looks to me that he has a cause but thinks he needs further technical backing up for it.
Cheers, Sören
In reply to Re: Re: Perl Version Differences
by Happy-the-monk
in thread Perl Version Differences
by xenchu
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |