Samsung Expands One UI 9 Testing Beyond S26 as Beta 4 Is Delayed

The company is pausing the next public beta to improve stability while server firmware listings show Android 17 builds for many midrange and older Galaxy models, pointing to a staged roll‑out.

Overview

Samsung announced a delay to the One UI 9 Beta 4 for the Galaxy S26 series so engineers can address stability issues before the next public release.
Public firmware listings and internal builds on Samsung’s servers show One UI 9 (Android 17) development is underway for models including the Galaxy S25 FE, A36, M34 and M36.
One UI 9 adds a more flexible Quick Panel, expanded Game Booster controls, new Samsung Notes and Tape features, improved DeX multitasking and a suite of accessibility updates that will vary by device tier.
Samsung is expected to ship the stable One UI 9 with its next foldables and then push staged updates to newer high‑end phones before rolling the software out to older and midrange devices.
For users this means a cautious, multi‑stage upgrade path that will deliver flagship‑first features to recent models while some phones such as the M34 will receive One UI 9 as their final major Android upgrade.