Galaxy S26’s stable One UI 9 rollout is expanding in the US, with an official changelog at last

Samsung has officially confirmed the stable One UI 9 rollout for additional Galaxy S26 series models in the US, according to the latest update. The carriers T-Mobile, Metro by T-Mobile, and US Cellular now have official Samsung firmware listings for these devices. Unlocked models are also beginning to receive the update. Samsung has released the full stable One UI 9 changelog, which highlights new features in Galaxy AI, Samsung Health, privacy, Bixby, accessibility, and DeX.

The rollout for the Galaxy S26 series in the US initially faced a slow start. The first indications of the stable Android 17 update appeared on T-Mobile's Galaxy S26 Ultra, although Samsung had not yet officially confirmed the release. However, the situation is now clearer, with Samsung updating its support pages to confirm the stable release for more US carrier variants.

Additionally, signs suggest that unlocked phones are also joining the update party. The firmware for the Galaxy S26 series in the US, which is built on S94xUSQU4BZID, includes a security patch dated September 5, 2026. Samsung's support pages for these models are now live, providing further confirmation of the update.