I haven't found Hexagon too crashy of late... I think I've subliminally learned to steer clear of the features that seems to consistently invoke memory faults... e.g. the painting tool thing in or next to the UV section.

I'm pretty sure it used to always crash on me when I turned the soft focus option on for vertex manipulation... but seems to be better now. Maybe due to more memory in the new computer, to soak up the leaks... perhaps?!? ;-)