It's a complete overhaul of the previous version and so much better, although you could send videos and pictures on the old version too.
I've been running the leaked version for months now and couldn't go back to the old un.
You'll want to update via app world mate. The leaked version was something like 2.0.8 and the latest is 2.0.33 and has a lot of bug fixes and changes.As above, I love it