https://techcrunch.com/2020/06/10/you-can-now-install-the-first-beta-of-android-11/

After a series of developer previews, Google today released the first beta of Android 11 and with that, it is also making these pre-release versions available for over-the-air updates. This time around, the list of supported devices only includes the Pixel 2, 3, 3a and 4.

If you’re brave enough to try this early version (and I wouldn’t do so on your daily driver until a few more people have tested it), you can now enroll here. Like always, Google is also making OS images available for download and an updated emulator is available, too.