I wonder specifically what you mean by "too unstable" and how long ago that was, because I haven't had problems with RawTherapee on MSWin. (Later versions may

I wonder specifically what you mean by "too unstable" and how long ago that was, because I haven't had problems with RawTherapee on MSWin. (Later versions may have moved newer functionality to a different tab or menu item, is that what you mean?)