Hi
To have ZFS now, will it be an option to install PFSense with ZFS and afterwards install Opnsense via bootstrap (https://forum.opnsense.org/index.php?topic=4255.15) over it?
Or does someone know the realase day for 18.7?
All the info you are looking for is here https://forum.opnsense.org/index.php?topic=4255.0
18.1.x already supports ZFS, but you have to bootstrap from an existing FreeBSD 11.1 ZFS install.
18.7 is due end of July with a full installer.
Cheers,
Franco