OxygenOS 9.0.0 based on Android 9.0 Pie is beginning to arrive on the OnePlus 5 and 5T today via an OTA update. The Chinese phone maker announced that the update will be incremental.
After rolling out OxygenOS open beta builds based on Android 9.0 Pie for OnePlus 5 and 5T earlier this month, OnePlus has now formally released the stable OS version to these devices.