Created by: sheepsteak
CRA is supposed to officially support TypeScript 4 as of 4.0.0 but react-scripts is still set at only allowing TypeScript as ^3.2.1. As the CRA TypeScript template comes with TypeScript 4 I think this is causing an install error for users on npm 7 as it now attempts to install peerDependencies by default but the TypeScript versions conflict.
If CRA now supports TypeScript 4 I think this is the correct change to make things right.
Closes #9892 (closed) Closes #9764 (closed) (not really related to this but it can close after this) Closes #9995 (closed)