Fine, changes are not so dazzling XD. But they do include a new level created in World Machine, a bit better trees, bots and other little changes. Bots are a bit dumb, but as a target practice and filler they do work fine. At least it will be better than playing by yourself if there is no one online.
Mac version is up, but I do not have a way to try if it works or not, so tell me. That is all for now :)
Gameplay vs bots brought to you in crappyvision