UPD2:
Seemingly it does indeed improve the d3d crash. Throwing my usual d3d crash scenarios at the updated driver is stable enough. I have not yet tested it with big UDIMs, but enabling RT + Shadows + all the whistles is still stable enough, so that is definitely an improvement. The 531.79 driver seems to be the way to go.
Please share your own experiences, I will be (lazily) testing it more over the week 