I don't know, I just feel like the gameplay has changed a bit in comparison with the older version.
Jump height, good thing it was changed back to 30FPS, was a chaos when it was 60FPS.
Also one thing, it has happened about twice to me when playing this version. Sometimes after downloading a map from a server, the server shows me some error about some invalid numbers or something like that, similiar to what Dumbledank posted "The game attempted to load a sprite for team ID: 2" but also something else.