OnePlus 7T and OnePlus 7T Pro have received a new update. OxygenOS 10.3.3 offers slow motion with 960 frames per second at 720p, detection of lens spots and Dolby Atmos integration for the new Bullets Wireless Z. It adds epic games in the games space.
The update also includes the Android security patch for May. It is an incremental update with a package size of 264 MB. It will be introduced gradually.
Here is the full change log:
- OnePlus Bullets Wireless Z can now be integrated into Dolby Atmos for better sound quality.
- Optimized the volume control to improve the user experience.  Improved user experience with battery life
- Improved system stability and general problems fixed
- Updated Android security patch to 2020.05
- Supports slow motion recording with 720p at 960 fps
- Detection of lens spots
- ] Phone
- Newly added epic games in Games Space
Source: OnePlus Forums