https://wccftech.com/android-10-update-rolling-out-for-oneplus-6t/

Last month, OnePlus put out a roadmap that shed light on their Android 10 rollout schedule. As expected, the OnePlus 7 was to receive the software first followed by the OnePlus 6T and 6. Shortly after the announcement,  the OnePlus 7 was at the receiving end of Android 10. Its predecessor—the OnePlus 6 and 6T—had to make do with an open beta. The program ended sometime last week and today, a stable Android 10 build is rolling out for the OnePlus 6T. Here's the full changelog according to OnePlus' website:

The OxygenOS 10 update for the OnePlus 6T weighs in at a hefty 1.8GB and brings forth all the standard Android 10 features along with some OnePlus-specific features such as the company's Game Space feature, the "Contextual display" ambient display feature and the October security patch.