OnePlus 3 users will be getting Android 7.0 Nougat (Beta community build) this month, as said by Brian Yoon, the software head at OnePlus.
Also Read:- OnePlus CEO Teases Android 7.0 Nougat update for the OnePlus 3
Not only OnePlus 3, but OnePlus will also update the OnePlus 2 to Android Nougat very soon. Yoon didn't say anything about the OnePlus X and OnePlus One, so it might be possible that OnePlus might ditch these two smartphones.
As said earlier, OnePlus will now merge Oxygen OS and Hydrogen OS for faster updates and it seems that "Android 7.0 Nougat" is going to be a fruit of the same.
The reports also say that OnePlus will roll out Official build of Android 7.x Nougat for OnePlus 3 by the end of this year.