Researchers have found two new vulnerabilities in React Server Components while attempting to exploit the patches last week. These are new issues, separate from the critical CVE last week. The patch for React2Shell remains effective for the Remote Code Execution exploit.

There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it. A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately. react.dev/blog/2025/12...

There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it. A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately. react.dev/blog/2025/12...

React Conf 2025 is a wrap! Check out the recap: react.dev/blog/2025/10...

React Conf Day 2 is starting now!

Introducing the React Foundation

React Conf is starting now!

We are excited to announce @infinite.red, Old Mission, @arcjet.com, and @renderatl.com as React Conf silver sponsors this year!

We are excited to announce @mux.com as the React Conf livestream sponsor this year! Learn about how to build better video into websites, platforms, AI workflows, and more here: www.mux.com

We are excited to announce @redwoodjs.com as a React Conf Gold sponsor this year! Learn more about the React framework for Cloudflare here: rwsdk.com

We're excited to announce Gio Laquidara and Eric Fahsl as React Conf speakers! They'll be sharing how to use React and React Native to build for Amazon’s new Vega OS

React Conf starts tomorrow!

We are excited to announce MUI as a React Conf Gold sponsor this year! Learn more about MUI’s suite of free UI tools here: mui.com

We are excited to announce @ag-grid.bsky.social as a React Conf Gold sponsor this year! Learn how to add Data Grids to your application here: www.ag-grid.com

We are excited to announce @expo.dev as a React Conf Gold sponsor this year! Expo is everything you need to build and distribute apps that run across android, iOS and web: expo.dev

We are thrilled to announce @chantastic.bsky.social as React Conf 2025’s emcee!

We are excited to announce @redwoodjs.com as a React Conf Gold sponsor this year! Learn more about the React framework for Cloudflare here: rwsdk.com

We are excited to announce @revenuecat.com as a React Conf Gold sponsor this year! Learn how to build and grow your subscription business here: www.revenuecat.com

We are excited to announce Resend as a React Conf Gold sponsor this year! Learn how to deliver transactional and marketing emails at scale here: resend.com

Check out the React Conf app!

We are excited to announce @vercel.com as a React Conf Gold sponsor this year! Learn how to build and deploy on the AI Cloud here: vercel.com

React 19.2 is now available! This release includes Activity, useEffectEvent, React Performance Tracks, partial pre-rendering, and more: react.dev/blog/2025/10...

The schedule for React Conf 2025 is now live! conf.react.dev/agenda

We’re thrilled to announce more React Conf speakers from the React team and the community

We're excited to announce some of your favorite @reactnative.dev contributors as React Conf speakers: Alex Hunt @cipolleschi.bsky.social @cortini.co @grabbou.com @excbadacc.es, Nicolas Gallagher, and Ruben Norte

We're excited to announce React Conf speakers from some of your favorite React frameworks and build tools like @expo.dev @nextjs.org Parcel @reactrouter.com @redwoodjs.com Rock @tanstack.com

We're excited to announce React Conf's first AI-related talk: a discussion panel with @vjeux.bsky.social @kentcdodds.com @swyx.io @t3.gg moderated by @leerob.com

We're thrilled to announce that @seth.blue @shrutikapoor08.bsky.social @en-js.bsky.social @zmofei.bsky.social @lydiahallie.com @jherr.dev @lunaleaps.bsky.social will be speaking at React Conf 2025!

React Router RSC Preview is now available This brings support for all of React's API in a way that is incrementally adoptable by the millions of React Router apps in production today, but also feels great for a greenfield React Router app remix.run/blog/rsc-pre...

Today we're sharing that View Transitions and Activity are ready to try in the experimental channel, along with docs and updates on other areas we're actively working on: react.dev/blog/2025/04...

React Compiler RC is now available! We've added support for swc and are working towards a stable release react.dev/blog/2025/04...

React Conf is back for 2025! Join our co-hosts, Meta and @callstack.com , October 7-8 in Henderson, Nevada or join the free livestream

React Native 0.79 is now available! This release includes several performance improvements. Metro is now >3x faster to cold start! Android apps will also be faster thanks to changes to JS bundle compression. reactnative.dev/blog/2025/04...

React 19.1 enables Server Components in Parcel with React Stable (not only canary)! Just released Parcel v2.14.3 with the corresponding update. 🥳

React 19.1 has just been released! Check out the latest updates here: github.com/facebook/rea...

Today, we’re deprecating Create React App for new apps, and encouraging existing apps to migrate to a framework. We’re also providing docs for when a framework isn’t a good fit for your project, or you prefer to start by building a framework. react.dev/blog/2025/02...

React v19 is now stable! react.dev/blog/2024/12...

[email protected] is out today with a replacement for sibling pre-rendering. Give it a try and maybe we can ship React 19 soon? github.com/facebook/rea...

just put this thing on the react site footer. feel free to copy paste github.com/reactjs/reac...

did you know that you can conditionally exit an effect? this is useful if you want a subscription to only stay active while some condition is true, and to stay removed while that condition is false. a bit mindbending, but so it is with react!

SDK 52 beta is now available! Try upgrading your app and let us know if you run into any issues! ⏳The beta period will last about two weeks. expo.dev/changelog/20...

this is pretty huge — the react native team has been working towards this milestone for the last six years! reactnative.dev/blog/2024/10...

what makes a good component?

in case you missed it, the first react compiler beta dropped among other things is official support for React 17+ so you can try it even with an old React (and yes, version 17 is four years old, which is about seventy five in the javascript years)

anyone else out here making rectangles

there’s no such thing as “global state”