in reply to Rediscovering fixed bugs

It's usually best to install your own more up-to-date Perl in a "/usr/local" directory and to use that for all the "real" things that you have to do ... just as you would do on a shared machine where you didn't have root-access. (Language versions in distro packages are usually quite old ... BUT they are the very ones that might be relied-upon by the package management software for that distro, so catch-22. This works around.)