I have just upgraded to Movable Type 3.2 (from 2.661) in about 90 minutes, including some piddling around.
I may be adjusting some stuff in the next few weeks, so look for announcements.
Update: I have turned comments back on. But they aren't working yet.
Update Saturday morning: Apparently there will have to be a lot of updating to get all my code up to the new standard. I will be working on that as I get a chance.
Update Saturday evening: OK, I have comments working. Not pretty, but working. They will be working on all posts from now on. I will also turn them on for the last day or two of posts.