Solved Upgrade pool?

[circus78]

# zpool status     
  pool: spool
 state: ONLINE
  scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        mail        ONLINE       0     0     0
          raidz2-0  ONLINE       0     0     0
            ada0    ONLINE       0     0     0
            ada1    ONLINE       0     0     0
            ada2    ONLINE       0     0     0
            ada3    ONLINE       0     0     0
            ada4    ONLINE       0     0     0
            ada5    ONLINE       0     0     0
            ada6    ONLINE       0     0     0
          raidz2-1  ONLINE       0     0     0
            ada7    ONLINE       0     0     0
            ada8    ONLINE       0     0     0
            ada9    ONLINE       0     0     0
            ada10   ONLINE       0     0     0
            ada11   ONLINE       0     0     0
            ada12   ONLINE       0     0     0
            ada13   ONLINE       0     0     0
        spares
          ada14     AVAIL   

errors: No known data errors

  pool: zroot
 state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
        still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
        the pool may no longer be accessible by software that does not support
        the features. See zpool-features(7) for details.
  scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        zroot       ONLINE       0     0     0
          gpt/zfs0  ONLINE       0     0     0

errors: No known data errors

I would like to know if I can upgrade safely.. I am going to use this pool with standard software like dovecot, postfix, nginx.
Thank you

 

[SirDice]

I would like to know if I can upgrade safely..

If you're not going to export the pool and import it on a different system (Linux + ZFS for example) it should be safe to upgrade the pool. You really only need to take this into account when you move pools around to different systems that may have different ZFS versions (which may not support the newer features). As long as the pool stays with the same system it won't be an issue.