https://www.theverge.com/2018/5/8/17320826/android-p-beta-public-download-link-opt-in-sign-up-io-2018

If you want to get an early look at the next version of Android, now you have the chance. Google is launching the public beta for Android P today, which you’ll be able to sign up for at this link. And in a nice twist, the beta is open to more than just Google-made phones this year: you’ll be able to get it on the Essential Phone, Oppo’s R15 Pro, Nokia’s 7 Plus, Sony’s Xperia XZ2, Xiaomi’s Mi Mix 2S, Vivo’s X21, the still-unreleased OnePlus 6, and of course the Pixel and Pixel 2.

Google’s beta program makes it easy to start testing the software, since opting in will let you download beta updates through your phone’s normal software update feature. The downside is — and this is a big warning — once you’re in the beta program, there’s no going back. Not easily, at least: you’ll have to wipe your phone if you want to opt out and return to stable releases of Android Oreo. Keep in mind that you’re likely to encounter some bugs and probably shouldn’t try this on the phone you use daily.