The 6.12 release includes ZFS support (phase 1), several minor feature improvements, bug fixes, base package updates, and update to the latest 6.1.x longterm maintenance Linux kernel.
Check out the detailed Release Notes on our new docs site, and while there, take a look around.
As always, prior to upgrading, create a backup of your USB flash device: "Main/Flash/Flash Device Settings" - click "Flash Backup".
To upgrade:
First create a backup of your U