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Published 20 hours ago • verified publisher icon cypress-io

fix(deps): update dependency react to version 18.x 🌟 (major)

Open renovate[bot] opened this issue 3 years ago • 0 comments

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
react (source) 17.0.2 -> 18.2.0 age adoption passing confidence
react-dom (source) 17.0.2 -> 18.2.0 age adoption passing confidence
react-scripts 4.0.3 -> 5.0.1 age adoption passing confidence

Release Notes

facebook/react

v18.2.0

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React DOM
React DOM Server
Server Components (Experimental)

v18.1.0

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React DOM
React DOM Server
ESLint Plugin: React Hooks
Use Subscription

v18.0.0

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Below is a list of all new features, APIs, deprecations, and breaking changes. Read React 18 release post and React 18 upgrade guide for more information.

New Features
React
  • useId is a new hook for generating unique IDs on both the client and server, while avoiding hydration mismatches. It is primarily useful for component libraries integrating with accessibility APIs that require unique IDs. This solves an issue that already exists in React 17 and below, but it’s even more important in React 18 because of how the new streaming server renderer delivers HTML out-of-order.
  • startTransition and useTransition let you mark some state updates as not urgent. Other state updates are considered urgent by default. React will allow urgent state updates (for example, updating a text input) to interrupt non-urgent state updates (for example, rendering a list of search results).
  • useDeferredValue lets you defer re-rendering a non-urgent part of the tree. It is similar to debouncing, but has a few advantages compared to it. There is no fixed time delay, so React will attempt the deferred render right after the first render is reflected on the screen. The deferred render is interruptible and doesn't block user input.
  • useSyncExternalStore is a new hook that allows external stores to support concurrent reads by forcing updates to the store to be synchronous. It removes the need for useEffect when implementing subscriptions to external data sources, and is recommended for any library that integrates with state external to React.
  • useInsertionEffect is a new hook that allows CSS-in-JS libraries to address performance issues of injecting styles in render. Unless you’ve already built a CSS-in-JS library we don’t expect you to ever use this. This hook will run after the DOM is mutated, but before layout effects read the new layout. This solves an issue that already exists in React 17 and below, but is even more important in React 18 because React yields to the browser during concurrent rendering, giving it a chance to recalculate layout.
React DOM Client

These new APIs are now exported from react-dom/client:

  • createRoot: New method to create a root to render or unmount. Use it instead of ReactDOM.render. New features in React 18 don't work without it.
  • hydrateRoot: New method to hydrate a server rendered application. Use it instead of ReactDOM.hydrate in conjunction with the new React DOM Server APIs. New features in React 18 don't work without it.

Both createRoot and hydrateRoot accept a new option called onRecoverableError in case you want to be notified when React recovers from errors during rendering or hydration for logging. By default, React will use reportError, or console.error in the older browsers.

React DOM Server

These new APIs are now exported from react-dom/server and have full support for streaming Suspense on the server:

  • renderToPipeableStream: for streaming in Node environments.
  • renderToReadableStream: for modern edge runtime environments, such as Deno and Cloudflare workers.

The existing renderToString method keeps working but is discouraged.

facebook/create-react-app

v5.0.1

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Inside any created project that has not been ejected, run:

npm install --save --save-exact [email protected]

or

yarn add --exact [email protected]
:bug: Bug Fix
:nail_care: Enhancement
:memo: Documentation
:house: Internal
Committers: 11

5.0.0 (2021-12-14)

Create React App 5.0 is a major release with several new features and the latest version of all major dependencies.

Thanks to all the maintainers and contributors who worked so hard on this release! 🙌

v5.0.0

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Inside any created project that has not been ejected, run:

npm install --save --save-exact [email protected]

or

yarn add --exact [email protected]
:bug: Bug Fix
:nail_care: Enhancement
:memo: Documentation
:house: Internal
Committers: 11

5.0.0 (2021-12-14)

Create React App 5.0 is a major release with several new features and the latest version of all major dependencies.

Thanks to all the maintainers and contributors who worked so hard on this release! 🙌

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renovate[bot] avatar Dec 18 '21 13:12 renovate[bot]