hello!
We are using our own instance of Pontoon that is pretty far behind mozilla/master (we’re way back at https://github.com/mozilla/pontoon/commit/9043c2e586fa56c59d6fcb3205001990e25d846c). I am hoping to update to the latest, but since I haven’t been able to follow development in detail, I’m slightly wary about whether I can safely do this. (For example, I know that a previous time when we updated, we had to do it in two stages because some of the older migrations had been squashed together.)
Is there any chance there’s documentation I could check (aside from reading all the PRs 
) to figure out what, if anything, I need to do to safely roll forward?
Thanks in advance!
Anand