Supported platforms

How we define a supported platform

As of Flutter 1.20, we define three tiers of support for the platforms on which Flutter runs:

Supported Google-tested platforms, which are platforms the Flutter team at Google tests in continuous integration at every commit. For these platforms, we also run post-commit tests before rolling from the master channel to the dev channel.
Best effort platforms, supported community testing, which are platforms we believe we support through coding practices and ad-hoc testing, but rely on the community for testing.
Unsupported platforms, which are platforms that may work, but that the development team does not directly test or support.

Note that Android SDK 20 is covered by testing Android SDK 19, as the differences between the two platform versions are minimal.