If you leave "zpool create" to its defaults (enable every feature). There's two levels to consider though if you create a pool with explicit consideration for

If you leave "zpool create" to its defaults (enable every feature). There's two levels to consider though if you create a pool with explicit consideration for a system with an older version of ZFS: "-o version" and "-d"/"-o feature@...", both of which can be used to fine tune exactly what the pool can and cannot do. I've made a list to help out doing it between ZFS-on-Linux releases. It shouldn't be hard to look up FreeBSD feature lists and do the same: https://chungy.keybase.pub/zfs-features-table.html https://chungy.keybase.pub/zfs-features-table.html