Official debut: One UI 8.5 is expected to arrive pre-installed on the Galaxy S26 series, which is predicted to launch in either January or March 2026.
Beta program: A beta version could be released as early as November 2025, possibly for the Galaxy S25 series.
Supported devices: Most devices that received the One UI 8 update are expected to be eligible for the One UI 8.5 update in the months following the S26 launch.
