Following OxygenOS Open Beta 5, the developers of OnePlus has released a stable version of the system for OnePlus 6 and OnePlus 6T.
What is known
The firmware is with OxygenOS 10.3.2 number and it weighs only 80 MB. A new security patch (February) is installed in it. The developers have also fixed minor defects in the software and eliminated the problem of screen flickering when unlocking the device.
When to expect
The update as usually is spread in waves. If you do not want to wait, you can download the system for OnePlus 6T from the link and install it manually. The archive for OnePlus 6 will appear later.
Source: OnePlus Forum