Samsung seems to be speeding up the work on its next big software update — One UI 8, on Android 16. Internal beta and initial stable releases for various Galaxy flagship de vices have been seen on Samsung‘s servers that indicate the company is already testing the new software on its high-end series.
The firmware build numbers in the sight reveal that both beta and stable ones are in preparation. Below is a description of the models and their corresponding build codes:
- Galaxy S25 – ZYGx / BYGx
- Galaxy S24 – CYGx / ZYGx*
- Galaxy S23 – EYGx
- Galaxy S22 – GYGx
- Galaxy Z Fold6 / Flip6 – CYGx / ZYGx*
The build numbers have the following implications: firmware with a ‘Z‘ prefix generally points to beta builds, and those with a ‘B‘ or ‘C‘ prefix tend to point towards internal stable testing. This trend implies that Samsung isn’t just developing the next One UI 8 Beta Program but also getting ready with the final builds that may ship with its next-gen flagships.
What This Means for Galaxy Users
Samsung has consistently been among the fastest Android OEMs when it comes to delivering major OS updates. With Android 16’s release drawing closer, these new build sightings confirm that Samsung is preparing to launch One UI 8 much earlier than usual.
The Galaxy S25 is expected to launch later this year with One UI 8 pre-installed, while beta testing for the Galaxy S24 and Galaxy S23 may begin soon. Interestingly, the Galaxy S22 has also been spotted with test builds, confirming that Samsung plans to bring One UI 8 to at least three generations of its S-series flagships.
Even more notably, Galaxy Z Fold6 and Galaxy Z Flip6 are also listed with beta and internal builds. These upcoming foldables are expected to launch in July or August 2025, likely running One UI 8 out of the box, marking the debut of the update in the foldable segment.
Expected Rollout Timeline
Based on Samsung’s past rollout schedules and the build sightings:
- Beta builds for the Galaxy S24 and Galaxy S23 may go live in Q3 2025
- The Galaxy S25 will likely ship with a stable One UI 8 build
- The Galaxy Z Fold6 and Flip6 may be the first devices to feature One UI 8 at launch
- The Galaxy S22 might receive the update slightly later, potentially after public beta testing concludes for newer models
The appearance of One UI 8 firmware builds is exciting news for Samsung users. It shows the company’s commitment to delivering timely and stable software updates across its portfolio. With Android 16 expected to bring improved privacy, performance, and AI integration, One UI 8 is shaping up to be a significant leap forward for Galaxy smartphones.
Users can expect a more refined interface, deeper AI-powered features, and enhanced security — all tailored under Samsung’s sleek and user-friendly One UI skin. Stay tuned for official announcements as Samsung moves closer to launching the One UI 8 Beta Program.
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