I haven't done a systematic inspection of the site, but I noticed that the Edit button didn't work when I wanted to fix a typo in a post I'd just made.

Other observations (possibly trivial):

Home page no longer shows me who's been online in last 24 hrs. But maybe it's not supposed to.

New Posts told me there were over 300 new posts (my last visit was about 14 hrs ago). Seemed like a lot! Many of the new posts were threads that I never read and were formerly too old to have turned up in a New Posts search.