ZFS diff support on FreeBSD

[Zaphod Beeblebrox]

On Sun, Aug 1, 2010 at 2:58 PM, Steven Hartland <killing at multiplay.co.uk> wrote:
> I cant seem to track down the correlation of various ZFS features
> that are present in Solaris and the corresponding FreeBSD versions.
>
> I'm interested in the zfs diff command. Could anyone tell me where
> this info is, or do they know off hand when we're likely to see this
> added to the FreeBSD implementation of zfs?
>
> http://arc.opensolaris.org/caselog/PSARC/2010/105/20100328_tim.haley

This sounds pretty much exactly like diffdir (just applied in a script
to snapshots).