Just a few hours before the new year, OnePlus has started to rollout a stable OTA-Android 7-Update to its OnePlus 3 and OnePlus 3T-users worldwide. Reports come in, that the update is already available to some users.
http://www.notebookcheck.net/OnePlus-3-und-3T-OTA-Android-7-Rollout-has-started.189699.0.html