On Oct 19, 2012, at 4:59 PM, Edward Ned Harvey 
<opensolarisisdeadlongliveopensola...@nedharvey.com> wrote:

>> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
>> boun...@opensolaris.org] On Behalf Of Richard Elling
>>> At some point, people will bitterly regret some "zpool upgrade" with no way
>>> back.
>> uhm... and how is that different than anything else in the software world?
> No attempt at backward compatibility, and no downgrade path, not even by 
> going back to an older snapshot before the upgrade.

ZFS has a stellar record of backwards compatibility. The only break with 
compatibility I can recall was a bug fix in the send stream somewhere around 
opensolaris b34.

Perhaps you are confusing backwards compatibility with forwards compatibility?
 -- richard



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