Tbh I did not do much of testing yet, mostly because I was under the impression that you are still making changes...
I will be on the development release, this was just an intermediate RC. Much like SMF are doing with 2.1 tbf. I just wanted to make sure it all worked as expected before I add the other things in from the development release and break things even more than I already have!
Hopefully, the majority works and I can get on with development knowing what I have released is ok.