Linked by Thom Holwerda on Mon 6th Aug 2012 13:16 UTC
Mac OS X How this passed through Apple's Mountain Lion testing is beyond me. "If one edits a document, then chooses Save As, then BOTH the edited original document and the copy are saved, thus not only saving a new copy, but silently saving the original with the same changes, thus overwriting the original." Just goes to show: do not mess with my ability to save my stuff. There is no one-size-fits-all for this kind of delicate stuff.
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RE[6]: file versioning
by darknexus on Tue 7th Aug 2012 07:53 UTC in reply to "RE[5]: file versioning"
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Actually what Auto Save does is take regular snapshots of a document as you make changes and saves multiple backups going back in time which can be easily browsed and from which any number of earlier version can be retrieved.

What I want to know is where are these previous versions stored? In the document? The file metadata? Some special folder? Obviously they cannot be stored in the file proper, as if they were, most other operating systems probably wouldn't recognize the file and would fail to open it. It concerns me because I have one small system drive and several large data drives. If the version information is stored in the file's metadata (those annoy extra files you sometimes get when mixing OS X with other operating systems) then that's all well and good, but if it's using a special folder on my system drive, I'll eventually accidentally end up with my system drive filled and that will cause other problems. I know that applications' save states are saved in ~/Library/Saved Application State/, and that makes me wonder where versions are stored.

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