If you own a OnePlus 6, then there is a chance you have Android P beta installed. Version 2 of the beta has been released and it brings a number of features and fixes.
The update fixes an issue that affected face unlock, so you should be able to unlock the phone with your face now. It also fixed a camera stability issue. Google Lens has also been added to the camera app.
There are a number of interesting Oxygen OS features. First, users can now select/create their own system UI colors. Before owners could only choose one out of preset colors. With the new update, you should be able to choose any color in the color spectrum as shown in the image below.
The update lets you hide the notch and brings full-screen gestures. It also fixes some app compatibility issues and brings Ambient Display.
If you want to install it, you can check the source link for instructions on how to go about it.