how about a feature that keeps a Backup copy , Like ableton.

mine crashes alot and ive lost some minor work, it would be a nice feature

this happens every time you save your patch.
first step:
vvvv renames the existing file “PPPPatch.v4p” to “PPPPatch~.xml”
second step:
vvvv saves the current Patch to file: “PPPPatch.v4p” .

by renaming the extension from .xml to .v4p you have a backup.