The OnePlus 6 is getting its first update and its an important one. It gives you the option to hide the notch (a must-have for many) and it improves the camera.
Slow motion video is supported in two modes 480 fps at 720p resolution and 240 fps at a higher 1080p resolution. Also, the Quick Capture feature gets support for portrait mode (it opens the camera and snaps a picture when you double tap the Power button).
After the installation finishes, the Android Security patch will bumped up to May, the OnePlus Switch app will pre-installed and the Gallery will learn a few new tricks (more actions for recently deleted files).
Note the future tense you can follow the source link to download ROM files manually or you could wait for the OTA update, which should roll out soon.