Well, for me at least, crashes aren't gone completely, but far less frequent with the patch. Downside of course is that now the Trainer doesn't work anymore, but I guess that will be fixed in the coming days, so no worries.
I've been playing for 1½-2 hours in DX11 physx on and I did not have any crashes or glitches. Retail version. No trainer active - as I doubt the steam version will act nicely.