macOS 11: The wrong version of 1Password keeps getting launched

Hey @Thorgrim,

Great question here! My colleague Rudy has spoken a bit about it here in the context of backups, rather than multiple partitions.

The short version is that due to the way the 1Password extension helper needs to be started up for the various extensions to communicate with it, the extension helper needs to be reachable via a named XPC service. To do this, we request that the extension helper is set as a Login item. The catch here however is that the job created internally by macOS in order to manage this interaction isn't super specific about the path it should launch the extension helper from, and if there's multiple copies of 1Password.app on your Mac, the one that is launched is non-deterministically selected.

As a workaround, zipping up the copy of 1Password.app on your 10.14 partition should resolve your issue when you're on macOS 11. Let me know how that goes.

Jack