Here is a list of some bugs that I've found while trying to convert the Crip Zone themes. I haven't thoroughly played with this version to specifically look for bugs yet but will soon and post more there that I find.
I'm having a problem aligning the stats in RC1. It works fine if you have posts/topics in the boards but doesn't line up if there are none. It also does the same with the redirect board. Here's a board with 2.0.15 which looks fine:
And here RC1: