Forum upgrade - List of new features
Ever since the vBulletin licence expired back in 2007, the forum didn't get any upgrades and in 5 years a lot of new stuff have been developed by the programmers from Jelsoft and Internet Brands later. I myself stopped following the development so most of the new features are new for me too.
I thought about starting this thread and post the most important facts that changed over the years, from 3.6.7 to the current version, according to the official vB announcements. Some of the changes are really nice!