Samsung Galaxy S25 One UI 8.5 Beta 4 Update Released
Samsung has officially rolled out the fourth beta version of its One UI 8.5 software for the Galaxy S25 series, marking another step toward the stable public release. The update is currently available in South Korea, with broader international availability expected imminently for regions participating in the beta program.
Update Details and Availability
The One UI 8.5 Beta 4 update is now live for the Galaxy S25, Galaxy S25+, and Galaxy S25 Ultra. This release follows the third beta version from last month and arrives slightly ahead of earlier projections that suggested a mid-January 2026 timeframe. The firmware package is approximately 1.5GB in size and carries a version identifier ending in ZZAL.
Access to the update is restricted to users who have previously enrolled their compatible devices in Samsung's official One UI 8.5 Beta Program. Eligible participants can check for the update by navigating to Settings > Software update > Download and install on their devices. While the initial rollout is focused on South Korea, the update is anticipated to expand to other supported countries shortly.
Path to Stable Release
This beta phase represents the final testing stage before the official stable version of One UI 8.5 is deployed to eligible Galaxy devices. Industry patterns suggest that Samsung typically concludes its beta programs shortly before launching new flagship hardware. Accordingly, the stable One UI 8.5 release is expected to commence soon after the debut of the Galaxy S26 series, which is scheduled for later this month.
The iterative beta updates allow Samsung to refine performance, address user-reported issues, and polish new features ahead of the public rollout. Participants in the beta program provide valuable feedback that helps shape the final software experience for millions of users worldwide.
Conclusion
The release of the fourth beta for One UI 8.5 on the Galaxy S25 series signals that Samsung is in the final stages of software optimization. Beta participants in South Korea can now test the latest improvements, with global testers likely to gain access in the coming days. As the Galaxy S26 launch approaches, users can expect the stable version of One UI 8.5 to follow, bringing enhanced functionality and refined user experience to Samsung's flagship smartphone lineup.