[doomvox]

> It should be easy to always stay on the latest language version

With perl you can upgrade your language version whenever you like, and do it reasonably safely, because there's a lot of emphasis on backwards compatibility.

Perl may actually have a "always gimme the latest features" option, but I don't know what it is, because things like that aren't really that popular in the perl world-- we want old code to keep working the way it always has.