the only thing I can suggest atm is to try to really reload the forum with a ctrl-f5. Maybe some javascript is cached. Other than that I wouldn't know why it wouldn't work over there.
and yep, as to answer your question to what is new ;
-several big and small improvements to the interface
-security fixes
-code optimisations
that's it in a nutshell But posting features are quite nice, for example the inline edit feature you experienced and a quickreply is posted pretty quick too (doesn't have to reload the whole page)
Should be a better experience in general.