React Blog

This blog is the official source for the updates from the React team. Anything important, including release notes or deprecation notices, will be posted here first. You can also follow the @reactjs account on Twitter, but you won’t miss anything essential if you only read this blog.

React Labs: What We've Been Working On – February 2024

February 15, 2024

In React Labs posts, we write about projects in active research and development. Since our last update, we’ve made significant progress on React Compiler, new features, and React 19, and we’d like to share what we learned.

React Canaries: Incremental Feature Rollout Outside Meta

May 3, 2023

Traditionally, new React features used to only be available at Meta first, and land in the open source releases later. We’d like to offer the React community an option to adopt individual new features as soon as their design is close to final—similar to how Meta uses React internally. We are introducing a new officially supported Canary release channel. It lets curated setups like frameworks decouple adoption of individual React features from the React release schedule.

React Labs: What We've Been Working On – March 2023

March 22, 2023

In React Labs posts, we write about projects in active research and development. Since our last update, we’ve made significant progress on React Server Components, Asset Loading, Optimizing Compiler, Offscreen Rendering, and Transition Tracing, and we’d like to share what we learned.


March 16, 2023

Today we are thrilled to launch, the new home for React and its documentation. In this post, we would like to give you a tour of the new site.

React Labs: What We've Been Working On – June 2022

June 15, 2022

React 18 was years in the making, and with it brought valuable lessons for the React team. Its release was the result of many years of research and exploring many paths. Some of those paths were successful; many more were dead-ends that led to new insights. One lesson we’ve learned is that it’s frustrating for the community to wait for new features without having insight into these paths that we’re exploring…

React v18.0

March 29, 2022

React 18 is now available on npm! In our last post, we shared step-by-step instructions for upgrading your app to React 18. In this post, we’ll give an overview of what’s new in React 18, and what it means for the future…

How to Upgrade to React 18

March 8, 2022

As we shared in the release post, React 18 introduces features powered by our new concurrent renderer, with a gradual adoption strategy for existing applications. In this post, we will guide you through the steps for upgrading to React 18…

React Conf 2021 Recap

December 17, 2021

Last week we hosted our 6th React Conf. In previous years, we’ve used the React Conf stage to deliver industry changing announcements such as React Native and React Hooks. This year, we shared our multi-platform vision for React, starting with the release of React 18 and gradual adoption of concurrent features…

The Plan for React 18

June 8, 2021

The React team is excited to share a few updates:

  • We’ve started work on the React 18 release, which will be our next major version.
  • We’ve created a Working Group to prepare the community for gradual adoption of new features in React 18.
  • We’ve published a React 18 Alpha so that library authors can try it and provide feedback…

Introducing Zero-Bundle-Size React Server Components

December 21, 2020

2020 has been a long year. As it comes to an end we wanted to share a special Holiday Update on our research into zero-bundle-size React Server Components. To introduce React Server Components, we have prepared a talk and a demo. If you want, you can check them out during the holidays, or later when work picks back up in the new year…

All release notes

Not every React release deserves its own blog post, but you can find a detailed changelog for every release in the file in the React repository, as well as on the Releases page.

Older posts

See the older posts.