Different versions of oban need different migrations executed. The current oban version you’re running requires version 11. Eventually oban might introduce new changes to their db setup, which will go into version 12. At that point you need to update your version 11 setup in your db to version 12 (in a new migration) and for rollback to go back from version 12 to version 11.

That’s why these migrations are versioned: To allow you to write migrations, which update oban step by step over the lifetime of your project using oban.

@LostKobrakai’s answer is exactly correct. It seems like some variant of that should make it into the Oban.Migration docs, or the install guide.

Early on, there were a lot of migrations while we figured things out. For the past few years, the schema has been stable and no more migrations are planned.