The latest developer build of Android P is here:
Google is ramping up for the official Android P build expected to be pushed in the next few months. Late yesterday I got an alert to update my Pixel to the latest beta. With one more to go before we see the final build, this one is expected to be even more stable than the last one released a few weeks ago. I will have to test Android Pay because I was able to set it up successfully on my phone after reading on Droid-Life that it was not working.
Overall this is an even more stable release and can almost be considered a daily driver. The changes so far are few ranging from a different screen rotation icon and the Google search bar removing the mic icon. Other than that we are likely looking at what to expect on Pixel 3 phones come this fall. The next build will be the final polish for the engineers to test minor bugs, and provide app developers a more complete Android P build to prepare for phones that will get Android P.