Nokia Mobile has started the rollout of Android P DP3 (beta 3) build to the Nokia 7 plus users. Nokia 7 plus is the only Nokia device participating in the Android P preview and it is good to see Nokia Mobile offering the latest builds (although they are a little slow about it).
The new build bumps the version to V3.110 from the V2.13B in the beta 2. Another good thing is that starting this time, Nokia Mobile is also offering the update via OTA. So, if you are already on DP2 (beta 2), then you can simply check for updates in the settings to receive it, hence saving yourself from downloading the package and sideloading via ADB.
The full package is B2N-3110-0-00WW-B03-update and can be downloaded off Nokia Developer website. You can downgrade to Oreo at any point by using the downgrade package which is also available on the Nokia Developer website.
Update: Here’s how the OTA update notification looks like.