Flutter: We’ve released 1.22.0-12.1.pre to beta

[NewsBot]

A new Flutter blog post/annoucement has been posted!

Hi all, I’m happy to announce that Flutter 1.22 is now available on the beta channel: 1.22.0-12.1.pre. For more details about this release, please see the following Medium blog post: https://medium.com/flutter/supporting-ios-14-and-xcode-12-with-flutter-15fe0062e98b . We branched from master

Get the full details here: https://groups.google.com/d/msg/flutter-announce/N0lYlM0MxmU/4XYC0ZZ3BAAJ