Samsung has reportedly initiated early internal testing for its next major software update, One UI 9. This development comes even as the company is in the final stages of preparing the One UI 8.5 rollout. Leaked firmware data suggests that Samsung is moving quickly to ensure the new operating system is ready for its next-generation foldable devices.
According to the information, the Galaxy Z Fold 8 and Galaxy Z Flip 8 are already part of the internal testing phase for One UI 9. The software is expected to make its official debut alongside these new foldable smartphones, likely around mid-2026.
Development Progresses Alongside One UI 8.5 Finalization
While Samsung is pushing forward with One UI 9, work on the imminent One UI 8.5 update is still being completed for current flagship users. Server logs indicate that the development cycle for One UI 9 is proceeding at a steady and rapid pace. This accelerated timeline increases the likelihood that the software will be pre-installed on the Galaxy Z Fold 8 and Z Flip 8 at the time of their launch in the summer of 2026.
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Testing Expands Across Foldable Lineup
Beyond the upcoming Fold 8 and Flip 8, testing for One UI 9 appears to be expanding to other hardware. An unidentified model number has been spotted, which could potentially be a new type of foldable device, possibly a larger-screen model or a tri-fold concept currently under review.
Furthermore, there are indications that Samsung is also testing One UI 9 on older devices like the Z Fold 7. This approach aligns with the company’s policy of providing extended software support for its flagship devices and suggests Samsung is already working on backward compatibility.
Expected to Debut on Android 17
One UI 9 is expected to be built on top of Android 17. While Google has not officially announced the dessert codename for Android 17, speculation points to “Cinnamon Bun.” The update is part of Samsung’s software roadmap for the year 2026.
Although specific features have not been confirmed, early hints suggest a modern redesign with a “glassy” interface aesthetic. Improvements in ecosystem integration are also anticipated, such as a Universal Clipboard feature designed to simplify content transfer between Galaxy phones and tablets.
Focus on Ecosystem and Foldable Experience
Major Samsung software releases are typically tied to new hardware launches. With the Galaxy S26 expected later in 2026, One UI 9 will serve as the primary operating system for the new foldable devices upon their release.
The early testing phase allows Samsung to refine system animations, notification management, and adaptive refresh rate controls. Improvements to large-screen app scaling for foldable devices are also expected, which should enhance third-party app compatibility. Potential upgrades to DeX mode and cross-platform syncing with Galaxy laptops and tablets are also reportedly under consideration.
Samsung’s 2026 Software Strategy Takes Shape
The early start to One UI 9 development highlights Samsung’s focus on delivering a polished and seamless user experience at launch. By beginning the test cycle well in advance, the company aims to resolve bugs and fine-tune performance. This strategy ensures that the software advancements align closely with the hardware innovations of its upcoming foldable phones, offering consumers a more integrated ecosystem.
Conclusion
The initiation of One UI 9 testing demonstrates that Samsung is actively shaping its software roadmap for 2026 while simultaneously completing work on One UI 8.5. If the current pace of development continues, the update should be ready in time for the launch of the company’s new foldable phones in mid-2026, bringing enhanced visuals and deeper device integration.
Frequently Asked Questions (FAQs)
1. When is Samsung One UI 9 expected to launch?
One UI 9 is expected to officially launch in mid-2026, likely debuting alongside the new Galaxy Z Fold 8 and Z Flip 8.
2. Which devices are currently being used to test One UI 9?
Internal testing is reportedly underway using the Galaxy Z Fold 8 and Z Flip 8. There are also signs of testing on the older Z Fold 7 model.
3. What version of Android will One UI 9 be based on?
One UI 9 is expected to be based on Android 17, which is rumored to be codenamed “Cinnamon Bun.”
4. What new features can we expect with One UI 9?
Expected features include a modern UI redesign, better ecosystem integration like a Universal Clipboard, and further optimizations for foldable device screens.
5. Will One UI 9 be available for older Samsung foldable phones?
Early testing on the Z Fold 7 suggests that Samsung is working on compatibility for older devices, in line with its extended software update policy.