uOpt - What system were you running RawTherapee on? From forums it seems to be stable on RPM-based, less so on DEB-based - such as the 'Bunties.
Also, some Distros - including the PCLOS (PCLinuxOS) I use, test and pre-tweak where needed, all apps-etc, in their Repos.
And "suggest" - obviously can't enforce - that users only install (PCLOS is a Synaptic installer setup) from the Repo, not "external". If something is needed, and isn't in the Repo - enter a decscription, origin, functions, in Package Request on the Distro Forum.
RawTherapee was actually one such - I'd run an external install back in KDE3.5, and while 'promising', it was pretty unstable. In KDE4.x RT was a Package Request, and the Team set up the by then latest version to run stably in PCLOS - and results are very good.
That PCLOS Repository has "only" 13,000 or so apps, programs, tools, utilities and such, is because everything in it is pre-checked and adjusted to suit, compared with some Distro Repos which list many more items, but which makes it more difficult for their Teams to check and adjust each, if needed.