Hi @lundman!
Thanks as always for your work!
https://openzfsonosx.org/forum/viewtopic.php?f=20&t=3924
About the 2.2.3 release: I'm still using 10.9...
As the 2.2.2 release for 10.9 was downloaded 5231 times, it looks like I'm not the only one.
In my opinion, ZFS particularly makes sense for old MacOSes that can't use APFS, and for those who have to share data between multiple versions of MacOS (in my case 10.9, 10.11 and 10.14 — and pretty soon 12.x), ZFS is a wonderful bridge, if possible.