Upgrading macOS and ZFS?

[StephenR]

So I have an M1 mini currently running ZFS 2.2.2-1 on macOS Sonoma 14.7.1

I didn't upgrade to macOS 15 Sequoia because there were no "stable" ZFS builds for Sequoia at the time I looked.

I now see that there is an RC for 2.3.0, which includes a Sequoia build.


So my question is: which do I upgrade first?

My first thought is to upgrade ZFS to 2.3.0 using the Sonoma installer; confirm it works properly; upgrade macOS to Sequoia; possibly "upgrade" ZFS again to the Sequoia build.
Besides doing an export of the pool before the ZFS upgrade, is there any other recommended procedure here?

What about: zfs export; disconnect the hardware (the ZFS drives are all external over TB3); upgrade macOS; upgrade ZFS; reconnect and import the pool?


Cheers