The upcoming FreeNAS version 8.3.1 will include encryption for ZFS file systems as the most important new feature. Currently, FreeNAS 8.3.1 is in its first BETA version, so it is not recommended to entrust any important data to this version - no matter if encryption is used or not. Besides encryption, there are also updates for iSCSI targets and Samba, which have not been tested yet, too, and are only available in a BETA version.
The plugins, on the other hand, should not change, popular functions like minidlna will hopefully also work smoothly with the upcoming version, after some minor problems with FreeNAS 8.3.0, which are a thing of the past with the current FreeNAS 8.3.0-p1. In general it seems to be recommended to always wait for a patch release and not to update directly to a new version. Users who like to experiment can Download FreeNAS 8.3.1-BETA 1 from the project website.
English 
Deutsch 
Français 
Español
If I have seen it correctly, the release is available since a few days. So no more beta. 🙂 Couldn't have been better timing, I'm planning a double NAS solution for our historical data. NAS-1 at the office and NAS-2 at the hoster. If ZFS can now be encrypted I feel safer if I give a bucket out of the house.
Great blog by the way, I like it a lot.
You're right, it's not announced on Freenas.org yet, but you can already download it. Nevertheless I would wait a few days if there are still errors.
Such a double NAS solution sounds exciting - I'm assuming that you'll be able to synchronize them via rsync.
And thanks for the positive feedback on the blog 😉