If you’re using the latest version of BBM, you’re most likely running version 126.96.36.199. If you’re interested in trying the latest BBM, head over to mobile.blackberry.com from your BlackBerry browser.
The most notable difference here is that SMS is built into the BBM experience. Contacts that are in your BBM list, who send you a text message, will have their threaded SMS conversation in the “Chats” section of BBM. This may not be new to those who are on top of the BBM leaks, but it’s the first I’ve noticed it. Other than that, it’s a lot of maintenance work.