OnePlus' custom Android UI, namely OxygenOS, can be summed up as stock Android with wings. It has helped OnePlus and its performance-oriented persona surge higher, especially in markets like India where the mid-range dominates the sales trends. With all eyes on the ball, OnePlus has actively been updating its two flagships of 2018 with new OxygenOS features almost every month, and the newest update is already hitting both the OnePlus 6T and OnePlus 6 via OTA.
The Chinese brand has rolled out OxygenOS 9.0.12 for the OnePlus 6T and OxygenOS 9.0.4 for the OnePlus 6. These updates bring Google's security update from January 2019 along with deeper integration with Google Duo. This feature was introduced in the Open Beta last month and allows users to make video calls via Duo from within the Dialer app. Besides this, the changelog indicates that there is better optimization of the screen, as well as some bug fixes.
Note that while the changelog is the same for both the devices, you can not (and must not try to) install the update packages interchangeably.
The changelog includes the following:
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System:
- Updated Android security patch to 2019.01
- Optimizations for Screen Display
- Deep integration with Google Duo
- General Bug Fixes & Software Improvements
The OTA update is released in a phased manner and should reach your OnePlus 6T or OnePlus 6 soon if it hasn't already. Meanwhile, if you're willing to flash the full firmware, you can grab full OxygenOS 9.0.12 for OnePlus 6T and OxygenOS 9.0.4 for OnePlus 6.