Correct. There is always going to be a time after a stable release and before the next beta release
where everyone is running the same version. The UI however is always marked as Beta if that's what your're running.
I've stopped running the beta builds now for few reasons:
1. Can't go any further than 18.5 on my XP system no further XP/Vista support. So no more betas to test.
2. I have found that beta builds aren't great, many times issues are found that had been resolved in earlier program/beta builds.
3. I don't like the idea of using my win10 laptop as a test-bed.
Previously Avast beta builds were pretty much bulletproof, now I see more bullet holes.
I don't know if this rolling monthly beta/program updates is a good idea, a period of stability would be nice. Perhaps quarterly updates, which would give longer for QA/Alpha and finally Beta testing before release.