If I go to system update in truenas I need to switch trains before I can actually get an update.
When I do, it gives me a drop down selection
This is very unclear and requires manual research to see the order of the codenames. From the RC next to Dragonfish I can tell it is a Release Candidate. Meaning it is the newest.
But between Bluefin and Cobia which is newer? the answer is Cobia
but I had to go search for both to find out that bluefin official version number was 22.12.0 and that cobia is 23.10
Instead of saying
TrueNAS-SCALE-Cobia - TrueNAS SCALE Cobia [release]
it should say
TrueNAS-SCALE-Cobia - TrueNAS SCALE Cobia [release] (23.10)