The Android Q Beta program runs from 13 March 2019 until the final public release to AOSP and OEMs, planned for Q3 2019.
Key development milestones will include SDK tools, Beta system images, emulators, API reference, and API diffs and more.
The milestones are listed below.
If you have a Pixel, Pixel XL, Pixel 2, Pixel 2 XL, Pixel 3, or Pixel 3 XL device, you can enroll the device in the Android Beta program to get updates to Android Q Beta over-the-air (OTA).
For details, see the Get Android Q page or visit https://g.co/androidbeta to enroll.