HI there
The release which we currently send to our customers is 3.1.1. 3.2 is a stepping stone to 4.0 and it has a lot of the 4.0 infrastructure in it like a new agi and, as you've discovered, a new http instance. However, it seems quite stable up to press. We'll be releasing 4.0 beta in a few weeks which is basically, 3.2 with a new front-end (very spiffy).
Kind Regards
S