Have to say 4.2 RC1 has been remarkably stable on my hardware. Actually more stable than 4.1.2 out of the box due to that annoying nouveau driver freeze up issue with 4.1.2. Plus my box is a little newer so kernels after 6.0 support it better (the 6.0 latest in 4.1.2 had issues with suspend with my hardware back six months ago or so). I like the changes a lot so great job by the dev team. I am hoping it is like 4.1 and updates will keep me on latest code and I won’t have to do a new install with 4.2 final.