Google’s Android beta program allows the more intrepid among you to take a first crack at new updates, but it can be a little irksome to then move to the final build. For example, the 7.1.2 testers are still running the beta while the final version has rolled out to non-testers. Now, it looks like Google has started updating the beta build to final, but only for the Nexus 6P so far.
[Update: Google resolves endless OTA loop] Google is updating Nexus 6P beta testers to the final 7.1.2 build [OTA Download] was written by the awesome team at Android Police.