Not sure if this is just me or if its something bigger but iv been forced to revert to 4.6.0 after some odd behavior. After upgrading I was no longer able to overwrite my scenes in an existing project. I could save new scenes and remove old ones then re-save with the scene i deleted still open. Yet any time the scene already existed I could no overwrite it. No error or anything, it seemed like it was working fine, just refused to actually save my changes. Reverting to 4.6.0 and it works again. Anyone else see this?
Yes it is a bug a fix should be coming in a patch soon
Oh. 
hope I didn’t noob it up and not read something I should have. Lol good to hear though.
No no, there is more info in this thread http://forum.unity3d.com/threads/4-6-1-broke-prefab-saving-and-model-scaling.285129/