OnePlus starts with the introduction OxygenOS 9.0.12 for OnePlus 6T and 9.0.4 for OnePlus 6.
Both phones can expect a January security patch, but the most significant is "deep integration with Google Duo."
Here's the whole list of changes.
- An updated Android security patch on 2019.1
- General bug fixes and system upgrades
- Deep integration with Google Duo
- Display optimizations (only 6T)
With incremental development, a small portion of users will see the update today, followed by everyone else in the next few days.