npx create-react-app@next --scripts-version=@next --template=cra-template@next my-js-app
npx create-react-app@next --scripts-version=@next --template=typescript@next my-ts-app
To update an existing app you can change the react-scripts
version in package.json
to next
and then run yarn
or npm install
You can see a list of all the changes in the 4.0 release here
First!
J/k, this is great! I'm so grateful to everyone who's worked so hard on this! I just updated one of my workshop apps and fast refresh is SWEET. Having the latest version of jest/jsdom is fabulous. So far everything's going great here! Thanks 👏