There's a new mutli-quote button you can now use, there's a new clickly inside all the quotes which points takes you straight to the quoted post, there is an infraction button for the mods (haven't figured that one out yet), i've added an auto image resizer to illiminate those huge pics which require side scrolling, plus tons of new options and adjustablility was added to the admin area, and I'm sure there's a few other things I haven't discovered yet.

EDIT: Another thing I just spotted was that there is a new highlight system when your looking at thread list. Thread's are highlighted differently if you are subscribed or not or if there are any deleted posts (last one is for the mods only I think).