So if you see problems that are not listed here, you have to report them or they won't get fixed before the release.
Well, if reporting a bug helps getting it fixed...
DXGrab no longer works. If DXGrab is enabled, full-screen applications stop getting mouse events. If I understand how GrabPointer works, this is because Wine threads have their own connections to xserver and after grab only one connection can get pointer events. I could be wrong, though: I haven't had time to properly debug the situation.
Obviously this bug is not a very high priority one. It makes me wonder if everybody else is using XFree 4.0, though. (Or not playing games with Wine :)