Before the update, when you wanted to address a person in a post, one would use "@" and then type the username and click on it (which didn't ever work all that well. Now, all you have to do is press the "Tag" button and it puts their username in the new post. That is an excellent upgrade.
I'm very strongly considering changing Behringer World over to Xenforo after this update to the Tascam Forums. I really like this platform.