In prior version, the little “x” at the top of the file would indicate when the file had changes in an unsaved mode. Now, it doesn’t.
Also, when this build installed, all my file headers went weird. Then I picked a different color and went back, and it seems to be ok.
https://img.skitch.com/20120620-1qeyruedwyseb3mry233ntkp2y.jpg