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Introducing the React Profiler

React 16.5 adds support for a new DevTools profiler plugin. This plugin uses React’s experimental Profiler API to collect timing information about each component that’s rendered in order to identify...

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Create React App 2.0: Babel 7, Sass, and More

Create React App 2.0 has been released today, and it brings a year’s worth of improvements in a single dependency update. While React itself doesn’t require any build dependencies, it can be...

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React v16.6.0: lazy, memo and contextType

Today we’re releasing React 16.6 with a few new convenient features. A form of PureComponent/shouldComponentUpdate for function components, a way to do code splitting using Suspense and an easier way...

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React Conf recap: Hooks, Suspense, and Concurrent Rendering

This year’s React Conf took place on October 25 and 26 in Henderson, Nevada, where more than 600 attendees gathered to discuss the latest in UI engineering. Sophie Alpert and Dan Abramov kicked off Day...

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React 16.x Roadmap

You might have heard about features like “Hooks”, “Suspense”, and “Concurrent Rendering” in the previous blog posts and talks. In this post, we’ll look at how they fit together and the expected...

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React v16.7: No, This Is Not the One With Hooks

Our latest release includes an important performance bugfix for React.lazy. Although there are no API changes, we’re releasing it as a minor instead of a patch. Why Is This Bugfix a Minor Instead of a...

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React v16.8: The One With Hooks

With React 16.8, React Hooks are available in a stable release! What Are Hooks? Hooks let you use state and other React features without writing a class. You can also build your own Hooks to share...

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Is React Translated Yet? ¡Sí! Sim! はい!

We’re excited to announce an ongoing effort to maintain official translations of the React documentation website into different languages. Thanks to the dedicated efforts of React community members...

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React v16.9.0 and the Roadmap Update

Today we are releasing React 16.9. It contains several new features, bugfixes, and new deprecation warnings to help prepare for a future major release. New Deprecations Renaming Unsafe Lifecycle...

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Introducing the New React DevTools

We are excited to announce a new release of the React Developer Tools, available today in Chrome, Firefox, and (Chromium) Edge! What’s changed? A lot has changed in version 4! At a high level, this new...

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Preparing for the Future with React Prereleases

To share upcoming changes with our partners in the React ecosystem, we’re establishing official prerelease channels. We hope this process will help us make changes to React with confidence, and give...

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Building Great User Experiences with Concurrent Mode and Suspense

At React Conf 2019 we announced an experimental release of React that supports Concurrent Mode and Suspense. In this post we’ll introduce best practices for using them that we’ve identified through the...

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React v16.13.0

Today we are releasing React 16.13.0. It contains bugfixes and new deprecation warnings to help prepare for a future major release. New Warnings Warnings for some updates during render A React...

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React v17.0 Release Candidate: No New Features

Today, we are publishing the first Release Candidate for React 17. It has been two and a half years since the previous major release of React, which is a long time even by our standards! In this blog...

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Introducing the New JSX Transform

Although React 17 doesn’t contain new features, it will provide support for a new version of the JSX transform. In this post, we will describe what it is and how to try it. What’s a JSX Transform?...

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React v17.0

Today, we are releasing React 17! We’ve written at length about the role of the React 17 release and the changes it contains in the React 17 RC blog post. This post is a brief summary of it, so if...

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Introducing Zero-Bundle-Size React Server Components

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...

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The Plan for React 18

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...

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React Conf 2021 Recap

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...

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How to Upgrade to the React 18 Release Candidate

Our next major version, React 18, is available today as a Release Candidate (RC). As we shared at React Conf, React 18 introduces features powered by our new concurrent renderer, with a gradual...

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