https://www.techradar.com/news/android-p-beta-3-is-ready-for-just-about-anyone-to-download

The Android P release date is next month, according to Google’s official timeline, and, right on time, you’re able to download Developer Preview 3 starting today. 

This is version of the software is described as ‘near-complete’, with a big focus on bug fixes and stability, as noted by Google VP of engineering David Burke.