OnePlus 6 and 6T smartphones are currently receiving the November 2021 security patch via OxygenOS 188.8.131.52 update. The update also includes system stability improvements and general bug fixes. You can read the full official changelog below.
- Improve system stability and fix known issues
- Update Android security patch to 2021.11
https://mspoweruser.com/oneplus-6-and-6t-get-november-2021-security-update/ OnePlus 6 and 6T get November 2021 security update with OxygenOS 184.108.40.206