Wow, it's been a while! Without getting into too much detail, a number of things happened that slowed down development. It was that so-called "real life" thing we all hear about. But, we're still working on M.U.G.E.N so don't worry!
I've been cleaning up the code a bit here and there lately. A number of minor changes I did for the RC series didn't make it into 1.0/1.1a. Not a big deal for people playing/developing with M.U.G.E.N, just mostly backend stuff.
Also, I'm hoping to get a solution for our forum registration problems soon. I'll have to talk to our admin about getting something put in place ASAP.