Comment by tsuraan

Okay, good to know it's being considered. For a non-optimized diff then (zfs-diff, which just prints which files have changed, not what about them have changed), it would be the same approach? Scan all the metadata looking for keys with versions between the two snapshots, and print out the associated file names? Would that simple approach be likely to be faster than whatever rsync does to find updated files when doing a backup?