facebook/react
### [`v18.2.0`](https://togithub.com/facebook/react/blob/HEAD/CHANGELOG.md#1820-June-14-2022)
[Compare Source](https://togithub.com/facebook/react/compare/v18.1.0...v18.2.0)
##### React DOM
- Provide a component stack as a second argument to `onRecoverableError`. ([@gnoff](https://togithub.com/gnoff) in [#24591](https://togithub.com/facebook/react/pull/24591))
- Fix hydrating into `document` causing a blank page on mismatch. ([@gnoff](https://togithub.com/gnoff) in [#24523](https://togithub.com/facebook/react/pull/24523))
- Fix false positive hydration errors with Suspense. ([@gnoff](https://togithub.com/gnoff) in [#24480](https://togithub.com/facebook/react/pull/24480) and [@acdlite](https://togithub.com/acdlite) in [#24532](https://togithub.com/facebook/react/pull/24532))
- Fix ignored `setState` in Safari when adding an iframe. ([@gaearon](https://togithub.com/gaearon) in [#24459](https://togithub.com/facebook/react/pull/24459))
##### React DOM Server
- Pass information about server errors to the client. ([@salazarm](https://togithub.com/salazarm) and [@gnoff](https://togithub.com/gnoff) in [#24551](https://togithub.com/facebook/react/pull/24551) and [#24591](https://togithub.com/facebook/react/pull/24591))
- Allow to provide a reason when aborting the HTML stream. ([@gnoff](https://togithub.com/gnoff) in [#24680](https://togithub.com/facebook/react/pull/24680))
- Eliminate extraneous text separators in the HTML where possible. ([@gnoff](https://togithub.com/gnoff) in [#24630](https://togithub.com/facebook/react/pull/24630))
- Disallow complex children inside `` elements to match the browser constraints. ([@gnoff](https://togithub.com/gnoff) in [#24679](https://togithub.com/facebook/react/pull/24679))
- Fix buffering in some worker environments by explicitly setting `highWaterMark` to `0`. ([@jplhomer](https://togithub.com/jplhomer) in [#24641](https://togithub.com/facebook/react/pull/24641))
##### Server Components (Experimental)
- Add support for `useId()` inside Server Components. ([@gnoff](https://togithub.com/gnoff)) in [#24172](https://togithub.com/facebook/react/pull/24172)
### [`v18.1.0`](https://togithub.com/facebook/react/blob/HEAD/CHANGELOG.md#1810-April-26-2022)
[Compare Source](https://togithub.com/facebook/react/compare/v18.0.0...v18.1.0)
##### React DOM
- Fix the false positive warning about `react-dom/client` when using UMD bundle. ([@alireza-molaee](https://togithub.com/alireza-molaee) in [#24274](https://togithub.com/facebook/react/pull/24274))
- Fix `suppressHydrationWarning` to work in production too. ([@gaearon](https://togithub.com/gaearon) in [#24271](https://togithub.com/facebook/react/pull/24271))
- Fix `componentWillUnmount` firing twice inside of Suspense. ([@acdlite](https://togithub.com/acdlite) in [#24308](https://togithub.com/facebook/react/pull/24308))
- Fix some transition updates being ignored. ([@acdlite](https://togithub.com/acdlite) in [#24353](https://togithub.com/facebook/react/pull/24353))
- Fix `useDeferredValue` causing an infinite loop when passed an unmemoized value. ([@acdlite](https://togithub.com/acdlite) in [#24247](https://togithub.com/facebook/react/pull/24247))
- Fix throttling of revealing Suspense fallbacks. ([@sunderls](https://togithub.com/sunderls) in [#24253](https://togithub.com/facebook/react/pull/24253))
- Fix an inconsistency in whether the props object is the same between renders. ([@Andarist](https://togithub.com/Andarist) and [@acdlite](https://togithub.com/acdlite) in [#24421](https://togithub.com/facebook/react/pull/24421))
- Fix a missing warning about a `setState` loop in `useEffect`. ([@gaearon](https://togithub.com/gaearon) in [#24298](https://togithub.com/facebook/react/pull/24298))
- Fix a spurious hydration error. ([@gnoff](https://togithub.com/gnoff) in [#24404](https://togithub.com/facebook/react/pull/24404))
- Warn when calling `setState` in `useInsertionEffect`. ([@gaearon](https://togithub.com/gaearon) in [#24295](https://togithub.com/facebook/react/pull/24295))
- Ensure the reason for hydration errors is always displayed. ([@gaearon](https://togithub.com/gaearon) in [#24276](https://togithub.com/facebook/react/pull/24276))
##### React DOM Server
- Fix escaping for the `bootstrapScriptContent` contents. ([@gnoff](https://togithub.com/gnoff) in [#24385](https://togithub.com/facebook/react/pull/24385))
- Significantly improve performance of `renderToPipeableStream`. ([@gnoff](https://togithub.com/gnoff) in [#24291](https://togithub.com/facebook/react/pull/24291))
##### ESLint Plugin: React Hooks
- Fix false positive errors with a large number of branches. ([@scyron6](https://togithub.com/scyron6) in [#24287](https://togithub.com/facebook/react/pull/24287))
- Don't consider a known dependency stable when the variable is reassigned. ([@afzalsayed96](https://togithub.com/afzalsayed96) in [#24343](https://togithub.com/facebook/react/pull/24343))
##### Use Subscription
- Replace the implementation with the `use-sync-external-store` shim. ([@gaearon](https://togithub.com/gaearon) in [#24289](https://togithub.com/facebook/react/pull/24289))
### [`v18.0.0`](https://togithub.com/facebook/react/blob/HEAD/CHANGELOG.md#1800-March-29-2022)
[Compare Source](https://togithub.com/facebook/react/compare/v17.0.2...v18.0.0)
Below is a list of all new features, APIs, deprecations, and breaking changes.
Read [React 18 release post](https://reactjs.org/blog/2022/03/29/react-v18.html) and [React 18 upgrade guide](https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html) 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`](https://developer.mozilla.org/en-US/docs/Web/API/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.
Configuration
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This PR contains the following updates:
^17.0.2
->^18.0.0
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Release Notes
facebook/react
### [`v18.2.0`](https://togithub.com/facebook/react/blob/HEAD/CHANGELOG.md#1820-June-14-2022) [Compare Source](https://togithub.com/facebook/react/compare/v18.1.0...v18.2.0) ##### React DOM - Provide a component stack as a second argument to `onRecoverableError`. ([@gnoff](https://togithub.com/gnoff) in [#24591](https://togithub.com/facebook/react/pull/24591)) - Fix hydrating into `document` causing a blank page on mismatch. ([@gnoff](https://togithub.com/gnoff) in [#24523](https://togithub.com/facebook/react/pull/24523)) - Fix false positive hydration errors with Suspense. ([@gnoff](https://togithub.com/gnoff) in [#24480](https://togithub.com/facebook/react/pull/24480) and [@acdlite](https://togithub.com/acdlite) in [#24532](https://togithub.com/facebook/react/pull/24532)) - Fix ignored `setState` in Safari when adding an iframe. ([@gaearon](https://togithub.com/gaearon) in [#24459](https://togithub.com/facebook/react/pull/24459)) ##### React DOM Server - Pass information about server errors to the client. ([@salazarm](https://togithub.com/salazarm) and [@gnoff](https://togithub.com/gnoff) in [#24551](https://togithub.com/facebook/react/pull/24551) and [#24591](https://togithub.com/facebook/react/pull/24591)) - Allow to provide a reason when aborting the HTML stream. ([@gnoff](https://togithub.com/gnoff) in [#24680](https://togithub.com/facebook/react/pull/24680)) - Eliminate extraneous text separators in the HTML where possible. ([@gnoff](https://togithub.com/gnoff) in [#24630](https://togithub.com/facebook/react/pull/24630)) - Disallow complex children inside `Configuration
📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).
🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about these updates again.
This PR has been generated by Mend Renovate. View repository job log here.