It depends on the number of issues were reported to Garmin by those who installed the beta.
It's even possible Garmin releases another beta after this one if any critical issue is found and they need to test it.
This beta is pretty good (stable) for me. I always installed the Garmin's beta and can't remember even one time that I needed to revert it to the stable released before.
If you want to use any of these new features, you should install the beta instead of wait for the final release.
