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React
Stories with reporting from React: the top stories first, then everything newest first. Each story links to the original articles.
Top stories
React 19.2
React 19.2 adds new features like Activity, React Performance Tracks, useEffectEvent, and more.
Denial of Service and Source Code Exposure in React Server Components
Security researchers have found and disclosed two additional vulnerabilities in React Server Components while attempting to exploit the patches in last week’s critical vulnerability. High vulnerability Denial of Service (CVE-2025-55184), and medium vulnerability Source Code…
The React Foundation: A New Home for React Hosted by the Linux Foundation
Latest
React 19.3
React 19.3 adds new features like View Transitions, Fragment Refs, browser(), Trusted Types, and more.
Critical remote-code-execution vulnerability reported in React Server Components and related frameworks
A critical unauthenticated remote-code-execution vulnerability affects React Server Components; a separate notice also identifies React Server Functions and Next.js. React published fixes in versions 19.0.1, 19.1.2 and 19.2.1, while Deno says it mitigated the issue in Deno Deploy. Other affected users are urged to upgrade immediately.
React Conf 2025 Recap
Last week we hosted React Conf 2025, in this post, we summarize the talks and announcements from the event...
Introducing the React Foundation
Today, we're announcing our plans to create the React Foundation a new technical governance structure
React Labs: View Transitions, Activity, and more
In React Labs posts, we write about projects in active research and development. In this post, we're sharing two new experimental features that are ready to try today, and updates on other areas we're working on now.
Sunsetting Create React App
Today, we’re deprecating Create React App for new apps, and encouraging existing apps to migrate to a framework, or to migrate to a build tool like Vite, Parcel, or RSBuild. We’re also providing docs for when a framework isn’t a good fit for your project, you want to build your…
React v19
React 19 is now available on npm! In this post, we'll give an overview of the new features in React 19, and how you can adopt them.
React Compiler Beta Release
At React Conf 2024, we announced the experimental release of React Compiler, a build-time tool that optimizes your React app through automatic memoization. In this post, we want to share what's next for open source, and our progress on the compiler.
React Conf 2024 Recap
Last week we hosted React Conf 2024, a two-day conference in Henderson, Nevada where 700+ attendees gathered in-person to discuss the latest in UI engineering. In this post, we'll summarize the talks and announcements from the event.
React 19 Upgrade Guide
The improvements added to React 19 require some breaking changes, but we've worked to make the upgrade as smooth as possible and we don't expect the changes to impact most apps. In this post, we will guide you through the steps for upgrading apps and libraries to React 19.
React Labs: What We've Been Working On – February 2024
In React Labs posts, we write about projects in active research and development. We’ve made significant progress since our last update, and we’d like to share our progress.
React Canaries: Enabling Incremental Feature Rollout Outside Meta
We'd like to offer the React community an option to adopt individual new features as soon as their design is close to final, before they're released in a stable version--similar to how Meta has long used bleeding-edge versions of React internally. We are introducing a new…
React Labs: What We've Been Working On – March 2023
In React Labs posts, we write about projects in active research and development. We've made significant progress on them since our last update, and we'd like to share what we learned.
Introducing react.dev
Today we are thrilled to launch react.dev, 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
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…
React v18.0
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.