Create React App

Create React App

  • Getting started
  • Help
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›Getting Started

Welcome

  • About The Docs

Getting Started

  • Getting Started
  • Folder Structure
  • Available Scripts
  • Browsers & Features
  • Updating To New Releases

Development

  • Editor Setup
  • Developing Components In Isolation
  • Analyzing Bundle Size
  • HTTPS In Development

Styles and Assets

  • Adding Stylesheets
  • Adding CSS Modules
  • Adding Sass Stylesheets
  • Post-Processing CSS
  • Adding Images, Fonts, And Files
  • Using The public Folder
  • Code Splitting

Building your App

  • Installing A Dependency
  • Importing A Component
  • Using Global Variables
  • Adding Bootstrap
  • Adding Flow
  • Adding Relay
  • Adding A Router
  • Environment Variables
  • Making A Progressive Web App

Testing

  • Running Tests
  • Debugging Tests

Back-End Integration

  • Proxying In Development
  • Fetching Data
  • Integrating With An API
  • Title & Meta Tags

Deployment

  • Deployment

Advanced Usage

  • Can I Use Decorators?
  • Pre-Rendering Static HTML
  • Advanced Configuration
  • Alternatives To Ejecting

Support

  • Troubleshooting

Updating To New Releases

Create React App is divided into two packages:

  • create-react-app is a global command-line utility that you use to create new projects.
  • react-scripts is a development dependency in the generated projects (including this one).

You almost never need to update create-react-app itself: it delegates all the setup to react-scripts.

When you run create-react-app, it always creates the project with the latest version of react-scripts so you’ll get all the new features and improvements in newly created apps automatically.

To update an existing project to a new version of react-scripts, open the changelog, find the version you’re currently on (check package.json in this folder if you’re not sure), and apply the migration instructions for the newer versions.

In most cases bumping the react-scripts version in package.json and running npm install (or yarn install) in this folder should be enough, but it’s good to consult the changelog for potential breaking changes.

We commit to keeping the breaking changes minimal so you can upgrade react-scripts painlessly.

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