Different Versions in ODF

[Josh Rickmar <joshua.rickmar@runbox.com>]

In newer versions of ODF, can you add the option of saving multiple
versions of the same file in the same file, so ODF users can roll-back
to any saved version without losing a separate file?  I think this would
be handy, since I wouldn't have to always be using the "Save As" button
to make another separate file for all my different versions.  I could
instead just save the separate versions in the same file name, and then
could decide which to open when I open the file.
-- 
Josh Rickmar <joshua.rickmar@runbox.com>