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[5]: file versioning
by Tony Swash on Mon 6th Aug 2012 22:11 UTC in reply to "RE[4]: file versioning"
Tony Swash
Member since:
2009-08-22

Can't see how data isn't been lost cumulatively. Don't use mac but from what I understand you to mean a file is in a liner process of change and unless you remembered to copy the file from the beginning you have 2 versions, the present and the previous 'save-as' as the bak which is whatever variable of 'save-as's' from the original.


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.

It's a bit eerie at first, once you first save a document in an app like TextEdit that implements Auto Save there is no longer a save item in the menu, you just open the document or close it with no dialogue asking if you want to save it. But hidden in the background and instantly accessible there is the previous version as it was before you opened it and made the changes, plus all previous versions.

Personally I think it's great feature but it's in it's infancy, I am sure eventually all apps will work like this. The problem now is how would such a system cope with say a large photoshop file, or a video being edited, but that all comes down to system resources, storage, speed etc, and we all know that eventually system resources limitations get overcome.

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