Samsung rolled out a new One UI 3.0 beta build earlier this week and it seems that a stable release may not be far away. This is in direct contrast to the Galaxy Note 10, Galaxy S10, and Galaxy Z Flip and Fold handsets whose beta program has been postponed due to a battery drain issue.
The most recent One UI 3.0 update for the Galaxy S20 series comes in at around the 200MB mark, and according to SamMobile, doesn’t let beta testers roll back to Android 10. Once you’ve downloaded and installed the update, that’s it, you are stuck on One UI 3.0 (Android 10).
Being unable to use Smart Switch to roll back to Android 10 is a sign that Samsung has reached the business end of the One UI 3.0 beta program, which means that Galaxy S20 users could see the stable release come to their handsets long before Christmas. So it may be worth tapping the Software Update button every now and then to see if an update is available.
Samsung has really stepped up in the software department in the past year or so, being Google to the punch with monthly security patches more than once.