As promised, OnePlus has started rolling out Android 7.0 Nougat based OxygenOS 4.0 update for OnePlus 3 and OnePlus 3T smartphones. OnePlus committed of releasing the Nougat update for both OnePlus 3 and 3T before year end back in November. The company started the rollout of the same hours before New Year's Eve.
The announcement was made via couple of tweets by OnePlus co-founder Carl Pei on December 31st. The update is rolling out gradually, so do not expect a new software update notification right away.

The announcement was made via couple of tweets by OnePlus co-founder Carl Pei on December 31st. The update is rolling out gradually, so do not expect a new software update notification right away.
