Samsung has started the development of One UI 9.0 and it gives us strong vibes of an imminent One UI 8.5 stable update rollout.

One UI 9.0 is a major upgrade, based on Android 17. Google is Beta testing the new operating system, and Samsung has also started internal optimization, as part of commencing a public Beta Program by May this year.

How One UI 9 is connected with One UI 8.5

Samsung shifting focus to One UI 9 is a clear sign that it’s done with One UI 8.5. Even though the rollout hasn’t begun, the software has passed internal testing, paving the way for the next major upgrade, based on Android 17.

Users of the Galaxy S25 series have been testing One UI 8.5 for nearly three months. Samsung recently opened the Beta Program for Galaxy Z Fold 7 and Z Flip 7 as well. It’s expected that slab-type flagships may also join testing.

One UI 9 will launch with the Galaxy Z Fold 8 and Z Flip 8 around July this year. We expect Samsung could begin the Beta Program by May itself. Galaxy S26 series will be the first to join the Beta testing when it goes live.

Samsung dropped seven Beta updates so far, with the 8th probably coming too. It is highly likely to be the final Beta build before Stable comes out. Recently, the March patch has arrived, which seems to be the final One UI 8-based update.

When to expect One UI 8.5 Stable and One UI 9 Beta?

One UI 8.5 Stable update is on the verge of release. The initial rollout may start in South Korea and a release timeline is unknown. Based on the current situation, it looks like Samsung may push it at the beginning of next month.

Regarding the One UI 9 Beta, we can only assume the Beta to arrive by May this year. The software will debut with the next-gen foldables sometime in July. Stable update could be provided to users around September.

Source – Samsung

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