Google plans to deprecate versions 1 and 2 of the Google Play Developer API later this year and suggests developers adopt version 3 sooner rather than later. The Google Play Developer API lets developers automate in-app billing and app distribution via the Play Store. It's time to upgrade.
Google first released version 3 of the Google Play Developer API in May 2018 at its Google I/O conference. It improves upon the functionality of earlier versions by making it possible for developers to start, manage, and halt staged app releases at each point of development. This includes production, internal testing, closed testing, and open testing.
Migrating to version 3 should not be too painful, according to Google. The company says developers who use the Google Play API client libraries can update to the latest versions of those libraries, which already support version 3 of the Google Play API. This might be all that's necessary for some, though Google notes that some may need to update specific code references to version 3.
Most plugins already support version 3 of the API. Developers who use plugins that don't support version 3 of the API will need to reach out to the maintainer of that plugin to see about updating its compatibility. Developers who still rely on version 1 of the API may need to link their API project to the Google Console before jumping to version 3.
When does all this happen? Google says developers still using version 1 and version 2 will start to see warnings in the console starting in mid-May. Versions 1 and 2 will remain available until December 1, 2019, after which time they will be retired. Google believes version 3 offers more tools and functionality for developers in the long run.
More details on how to make the migration are available here.