Samsung is reportedly initiating early development tests for One UI 9, a significant software update expected to launch on Android 17. Social media tipster Max Jambor shared preliminary findings indicating minor UI refinements, including slightly larger sliders in Quick Settings and a relocation of Parental Controls from Digital Wellbeing. However, this development arrives without Samsung users having access to the stable One UI 8.5 release, which remains elusive. Android 17 itself only recently began testing after a brief delay, highlighting Samsung's cautious rollout strategy. The 2026 foldables are rumored to receive the upgrade first this summer, but the lack of One UI 8.5 is a point of frustration for many Galaxy owners.