React v0.14
This blog site has been archived. Go to react.dev/blog to see the recent posts.
We’re happy to announce the release of React 0.14 today! This release has a few major changes, primarily designed to simplify the code you write every day and to better support environments like React Native.
If you tried the release candidate, thank you – your support is invaluable and we’ve fixed a few bugs that you reported.
As with all of our releases, we consider this version to be stable enough to use in production and recommend that you upgrade in order to take advantage of our latest improvements.
Upgrade Guide
Like always, we have a few breaking changes in this release. We know changes can be painful (the Facebook codebase has over 15,000 React components), so we always try to make changes gradually in order to minimize the pain.
If your code is free of warnings when running under React 0.13, upgrading should be easy. We have two new small breaking changes that didn’t give a warning in 0.13 (see below). Every new change in 0.14, including the major changes below, is introduced with a runtime warning and will work as before until 0.15, so you don’t have to worry about your app breaking with this upgrade.
For the two major changes which require significant code changes, we’ve included codemod scripts to help you upgrade your code automatically.
See the changelog below for more details.
Installation
We recommend using React from npm and using a tool like browserify or webpack to build your code into a single bundle. To install the two packages:
npm install --save react react-dom
Remember that by default, React runs extra checks and provides helpful warnings in development mode. When deploying your app, set the NODE_ENV environment variable to production to use the production build of React which does not include the development warnings and runs significantly faster.
If you can’t use npm yet, we provide pre-built browser builds for your convenience, which are also available in the react package on bower.
- React
Dev build with warnings: https://fb.me/react-0.14.0.js
Minified build for production: https://fb.me/react-0.14.0.min.js - React with Add-Ons
Dev build with warnings: https://fb.me/react-with-addons-0.14.0.js
Minified build for production: https://fb.me/react-with-addons-0.14.0.min.js - React DOM (include React in the page before React DOM)
Dev build with warnings: https://fb.me/react-dom-0.14.0.js
Minified build for production: https://fb.me/react-dom-0.14.0.min.js