Hi,
Flutter 1.20.4 has been released to stable. This is a hotfix release on the 1.20 branch. Changes for this build are listed below and are available on the Flutter Wiki here: Hotfixes to the Stable Channel.
This fixes the following issues:
https://github.com/flutter/flutter/issues/64045 - Cannot deploy to physical device running iOS 14
Thanks!
patrick, on behalf of the Flutter & Dart teams.