Dot in red close button for unsaved files - no longer a feature of Mac OS
It used to be that unsaved files would have a black dot in the red "close button" at the top left of the window to indicate that they were unsaved. This persisted even when Pages and other apps gained autosave, until you named and saved a file for the first time, when the X would appear in the red button.
This seems no longer to be the case. As soon as you create a new file (eg in Pages), the red button has an X in it. True, it prompts you to save it if you try to close it, but if there's a crash you're still likely screwed, and with nothing to remind you, while you're working, that you haven't yet saved. Is this feature gone? Anyone know when it disappeared?