I'm interested in the effect of the change in binary paths with the latest version, as I haven't seen much comment or documentation about it. Not an issue for most people I suspect, but it is one of the simpler things that seems to stop the new version working immediately.
So 1.9.4 path: /usr/local/bin/zfs
and 2.0.0 path: /usr/local/zfs/bin/zfs
for the zfs binary and the others
Obviously, if the path isn't in your shell profile commands will not run without a full path.
I notice that ZetaWatch won't launch under 2.0.0 running on both Catalina and BigSur, is the binary pathway hard coded?
I suspect we will turn up a few other situations where this causes problems and thought it was worth mentioning.