The newest update for the OnePlus 9 and 9 Pro incorporates the September 2022 security patch. It’s being released over the air in stages. Both the OnePlus 9 and 9 Pro have received the newest OxygenOS 12.1.based security patch update, which was released in September 2022. This update came from OnePlus with the build number LE2121_11_C.65 and is about 410MB in size. The full list of changelog is provided below.

Changelog

System

Updates Android security patch to 2022.09.

The OnePlus 9 series’ owners will be notified when the update is ready. If you haven’t received an update notification, you can check for updates manually by heading to your device’s Settings > System > System settings > Download and Install. Make sure your phone has a stable internet connection before upgrading to the newest version; ideally, you’ll do this over WIFI to avoid any problems.