After a brief and somewhat unpredictable pause, development on the One UI 8.5 beta appears to be back on a faster track. A new build has been spotted on Samsung’s servers, strongly suggesting that Galaxy S25 series users can expect the next beta update very soon.
According to tipster Tarun Vats, Samsung has uploaded a new One UI 8.5 beta build identified as ZZAH, replacing the previous ZZAF firmware. This server activity is a clear indicator that the company is preparing for a fresh release, likely to be distributed as the fourth beta.
The consistent delays have created uncertainty among beta participants across the six testing countries, but the emergence of this new build points to an imminent rollout, potentially as early as next Monday or Wednesday.
One UI 8.5 Beta 4 could be a substantial update
This upcoming beta update is expected to be substantial. While the exact changelog is still under wraps, it is anticipated to bring significant improvements to overall system stability and reliability. A key inclusion is expected to be the February 2026 security patch, ensuring the software is up-to-date with the latest protections.
More notably, Beta 4 may finally deliver the Linux kernel upgrade that was spotted in earlier internal builds. In Android terms, a kernel jump can lead to tangible benefits in performance, memory management, and hardware efficiency, contributing to a smoother and more responsive user experience.
As Samsung gears up for the unveiling of the Galaxy S26 series, the pace of the One UI 8.5 beta program is intensifying. Each new build brings the software closer to its final, stable form. The stable release of One UI 8.5 is expected to debut with the Galaxy S26 series, which is rumored for a launch next month, after which it will begin rolling out to the Galaxy S25 and other eligible devices.
