All was perfectly working since 1.7.2, here on Mavericks.
I've just tried the new v1.8.1 on my test partition following my carefully crafted procedure (exporting all pools, uninstalling former version — because in the past I always had issues when trying to update directly — then installing the new version).
The installation went smoothly but then nothing happened instead of the usual automount of pools.
I've tried to mount them manually, to list them: no pools!
I rebooted, tried all the procedure once again: same result.
Luckily, coming back to my main OS partition, all is still fine.
Looking at the Console while I install ZFS, I have the attached lines, with a lot (and never ending list) of "crash report for InvariantDisks":
Indeed, the DiagnosticReports folder is getting filled with InvariantDisks_xxx.crash files, here's the last one before reboot: