I didn’t do this on a live server, i test everything first. I just took over being the admin of a openfire server with 2000 users and 100+ group chat rooms. I did an upgrade from 3.9.1 to 4.4.1 and now all the group chats are missing from the web interface. The are in the DB.
So far it’s the only issue i’ve noticed but this is a game stopper for this if I can’t fix it.
I did try doing the upgrade paths from 3.9.1 but alot of the versions crashed with java heap errors but 4.4.1 seems stable. Likely the built in x64 java.