> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Jim Klimov
> 
> Besides, the format
> is not public and subject to change, I think. So future compatibility
> is not guaranteed.

That is not correct.  

Years ago, there was a comment in the man page that said this:  "The format
of the stream is evolving. No backwards  compatibility is guaranteed. You
may not be able to receive your streams on future versions of ZFS."

But in the last several years, backward/forward compatibility has always
been preserved, so despite the warning, it was never a problem.

In more recent versions, the man page says:  "The format of the stream is
committed. You will be able to receive your streams on future versions of
ZFS."

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