Updating software on repositories takes time. Packages have to be built and tested on various hardware, sometimes patches have to be applied, etc. Some operating systems also intentionally lag behind the latest versions a bit, to avoid picking up brand-new bugs or security issues. Tried-and-true versions generally require less frequent updates.
It's a fairly thankless task, so they might appreciate some help, if you want to volunteer.
Aaron B.
Available for small or large Perl jobs and *nix system administration; see my home node.