Upgrading system (linux)

With the new oclHashcat 1.37, it says it requires catalyst driver 14.9 or higher.

I'm on 14.3 it seems.  I'm also on the 'preferred' Ubuntu server 12.04.5 LTS

I really only use this system for oclHashcat, so keeping it as-is is not a prob.

But I'd like to bring all I can up to date, that of course will not break Hashcat.

So is going to Ubuntu 14.x LTS and latest greatest Catalyst drivers OK?

(would just doing a fresh wipe/install be a better approach then upgrading?)

Thanks guys.