▫️ Beta 1: mid-March, initial release, now available for the Pixel.✅
▫️ Beta 2: beginning of April, incremental update with bug fixes and improvements.✅
▫️ Beta 3: early May, during the Google I / O 2019, incremental update with bug fixes and improvements.✅
▫️ Beta 4: early June, final release of the APIs and SDK. Developers will now be able to update their applications on Google Play to the new version.✅
▫️ Beta 5: third quarter, candidate version.✅
▫️ Beta 6: third quarter, candidate version.✅
▫️ Final: third quarter, final update and AOSP source code for Android Q.
Except for surprises, Android 10 Q is expected to officially come out in August.