I just installed Xcode 4.5 and noticed that when I am in full screen mode, the Xcode tab bar disappears along with the menu bar. It was used to stay visible even when the menu bar is gone. Does anyone else experience this? Has anyone found a preference to keep the tab bar visible?
Well, it turns out that if you turn off full-screen mode and turn it on, everything will return to normal. This seems to be a bug after the update, which seems to be fixing itself.