OnePlus, following the OnePlus 8 and OnePlus 8 Pro, has released a new firmware version for the OnePlus 6 and OnePlus 6T. Unfortunately, this is still Android 10. There will be an update to Android 11 later.
The system came out with build number OxygenOS 10.3.6. In the case of the OnePlus 6, it weighs in at 140MB, while for OnePlus 6T users, it weighs in at 1.9GB. However, the list of changes in both devices is the same. The September security patch has been added to the update. In addition, the developers have fixed bugs and improved the stability of the software.
The firmware is being distributed in waves, but, as usual, you can already download it in the Oxygen Updater application.