Samsung has released the June 2024 security update for the Galaxy S23 lineup, following the release of a similar update for the Galaxy S24, S24+, and S24 Ultra in some markets. The Galaxy S24 update, the update for last year's models brings only security enhancements.
Another similarity between the updates for the Galaxy S24 and Galaxy S23 lineups is that they have made their debut in the USA. The Galaxy S23, S23+, and S23 Ultra are receiving the update on some carrier networks, including T-Mobile and US Cellular, and other carriers and unlocked units should get it soon.
The build number accompanying the update is S91xUSQS3CXE3. As mentioned, only security enhancements–from the June 2024 security patch—are included. If there are still some reported bugs or issues you are facing on One UI 6.1, such as increased battery drain, you may not see them getting rectified after you install this update.
The June patch comes with fixes for 59 security vulnerabilities discovered on Samsung's smartphones and tablets, more details on which can be found here.
You can download the June 2024 update on your S23, S23+, or S23 Ultra from the phone's Settings » Software update menu. If you prefer upgrading over a USB connection from a Windows PC, you can download Galaxy S23 firmware from our website.