I was thrilled to see the update earlier that the v1 → v2 migration was fixed on the back end.
Meanwhile, I’ll answer in case Merck is delayed getting back to this thread – changing from beta to stable is just the in-app switch and is (normally) non-destructive. See me also being initially cautious here: Mobile Apps v2.32.0 and Beta Firmware Channel.
Now that you’re on v2, you can do backups and restores, so “playing around” is much more safe!
The Bond team tries to let us in the community know about beta features with posts about new versions.
Since you’ve got a Gen 1 Bridge, 3.3.13 beta is the last one you can get.
You get Groups features and a few other improvements and fixes (the first link shows that despite the second link stating it isn’t for 1st gens, it did eventually get there in beta).