Samsung has unexpectedly launched the first One UI 9 beta, based on Android 17, for the Galaxy S23 series, despite it not being on the initial beta device list. The update arrived in India on September 3, 2026, with firmware version S91xBXXUAZZHL.

• The beta firmware is approximately 3.4GB and includes the August 2026 security patch.
• Key new features include a resizable quick panel and a Tape tool in Samsung Notes.
• This marks the likely last major OS upgrade for the Galaxy S23 series, which is promised four OS updates and five years of security patches.