1. Samsung is actively preparing Beta 3 of One UI 8.5
A new internal One UI 8.5 beta build (likely the next update for the S25 series) has been spotted on Samsung’s testing servers, which strongly suggests that One UI 8.5 Beta 3 is in development right now.
2. Expected release timeframe: early January 2026
Reliable sources point to January 5, 2026 (a Monday) as a likely date for the One UI 8.5 Beta 3 rollout for Galaxy S25 devices. If Samsung delays it slightly, the update might arrive the following week instead but an early January launch window is widely predicted.
3. What Beta 3 may bring
Samsung hasn’t officially listed specific changes yet, but the next beta is expected to focus on bug fixes and performance improvements to polish the OS ahead of the stable release next year.
4. Where this fits into One UI 8.5’s rollout
- The One UI 8.5 beta program is already live on the Galaxy S25 series after two previous beta updates.
- Samsung plans to launch the stable One UI 8.5 alongside the Galaxy S26 series in early 2026, and then roll it out to more devices afterward.
If you’re testing One UI 8.5 on a Galaxy S25, Beta 3 is likely coming soon around early January 2026 with refinements to improve stability before the full public release next year.
