OnePlus 3 finally getting its first Android 7.0 Nougat beta build
The OnePlus 3T won't be part of the beta program, so just those who own the OnePlus 3 will be getting the Nougat beta builds OnePlus is releasing until the the final build becomes available.
Obviously, support for multi-window view has been added too, along with notification direct reply and custom DPI support. OnePlus added status bar icon options and quick launch for third-party applications. Lastly, the update brings improved shelf customization.
Keep in mind that this open beta 8 build will not be pushed OTA (over the air) to current open beta users. This means that you will have to manually download this beta build.
Before installing the Android 7.0 Nougat beta on your OnePlus 3, you should know there are a couple of known issues that haven't been addressed yet.
For example, Android Pay may not work correctly. Also, your phone should experience some stability and performance issues. It's worth noting that after upgrading to this beta, you will not be able to directly downgrade back to Android Marshmallow builds.
source: OnePlus
Things that are NOT allowed: