New Delhi, Oct. 21 -- Samsung has started rolling out the stable One UI 9.0 update, based on Android 17, to the Galaxy S23 series in Europe. Galaxy S23 users enrolled in the beta programme are getting it first, with other S23 users to follow later.

According to SamMobile, the update is 516.69 MB and carries firmware version S91xBXXUAGZIF.

The Galaxy S23, S23+ and S23 Ultra are the latest older flagships to join the One UI 9.0 rollout. Samsung will gradually expand availability to non-beta users and other markets, though timing may vary by market and device.

Samsung began the stable One UI 9.0 rollout with the Galaxy S26 series in South Korea on 16 September 2026. On 28 September, it released the update to the Galaxy S25 series, Galaxy ...