OnePlus has released OxygenOS 11.2.4.4 – which includes a number of camera optimizations. At the present, the update is only available for OnePlus 9 and OnePlus 9 Pro units in India, which should be available for the other regions soon.

Changelog: OxygenOS 11.2.4.4
System
- Improved charging stability
- Improved the sensitivity of the keyboard in the edge area
- Improved the temperature control strategy
- Fixed the issue that the battery icon in the status bar is abnormally displayed
- Fixed the small probability issue that Google Fi SIM card can not accept incoming calls
- Fixed known issues and improved system stability
- Updated Android security patch to 2021.04
- Updated GMS package to 2021.03
Camera - Improved the image purity and the ambiance performance
- Improved the white balance consistency of the rear camera
- Improved image over-sharpening of the rear camera
To know more about the update – Visit here