Samsung has rolled out the stable version of One UI 9, its latest Android update. Surprisingly, the rollout begins with the newest foldable phones instead of the popular Galaxy S26 series. One UI is Samsung’s custom interface that enhances the look, feel, and functionality of Android on Galaxy devices. Version 9 represents the largest update Samsung has launched this year, bundled with Android 17, which Google released in 2026. Samsung hasn’t provided a specific date for the One UI 9 rollout to the Galaxy S26 series.