After pushing out the Android Oreo update for the OnePlus 3 and 3T in late Nov 2017 now OnePlus is pushing out the latest Oxygen OS 5.0.1 update which will bring some system improvements and fixes bugs.

OnePlus 3 and 3T Oxygen OS 5.0.1

The new Oxygen OS 5.0.1 on OnePlus 3 and 3T adds support for aptX HD, an adaptive mode for screen calibration, wifi hotspot device manager and general bugs and stability improvements.

The latest version of Oxygen OS also brings the Dec version of the Android security update.The latest Oxygen OS 5.0.1 OTA update will be pushed to more user in coming days and as of now, it is available for limited users.

Source