chore(deps): update react monorepo to v16.14.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
react (source)	16.2.0 -> 16.14.0
react-test-renderer (source)	16.2.0 -> 16.14.0

---

Release Notes

facebook/react

v16.14.0

Compare Source

React

• Add support for the new JSX transform. (@​lunaruan in #​18299)

v16.13.1

Compare Source

React DOM

• Fix bug in legacy mode Suspense where effect clean-up functions are not fired. This only affects users who use Suspense for data fetching in legacy mode, which is not technically supported. (@​acdlite in #​18238)
• Revert warning for cross-component updates that happen inside class render lifecycles (componentWillReceiveProps, shouldComponentUpdate, and so on). (@​gaearon in #​18330)

v16.13.0

Compare Source

React

• Warn when a string ref is used in a manner that's not amenable to a future codemod (@​lunaruan in #​17864)
• Deprecate React.createFactory() (@​trueadm in #​17878)

React DOM

• Warn when changes in style may cause an unexpected collision (@​sophiebits in #​14181, #​18002)
• Warn when a function component is updated during another component's render phase (@​acdlite in #​17099)
• Deprecate unstable_createPortal (@​trueadm in #​17880)
• Fix onMouseEnter being fired on disabled buttons (@​AlfredoGJ in #​17675)
• Call shouldComponentUpdate twice when developing in StrictMode (@​bvaughn in #​17942)
• Add version property to ReactDOM (@​ealush in #​15780)
• Don't call toString() of dangerouslySetInnerHTML (@​sebmarkbage in #​17773)
• Show component stacks in more warnings (@​gaearon in #​17922, #​17586)

Concurrent Mode (Experimental)

• Warn for problematic usages of ReactDOM.createRoot() (@​trueadm in #​17937)
• Remove ReactDOM.createRoot() callback params and added warnings on usage (@​bvaughn in #​17916)
• Don't group Idle/Offscreen work with other work (@​sebmarkbage in #​17456)
• Adjust SuspenseList CPU bound heuristic (@​sebmarkbage in #​17455)
• Add missing event plugin priorities (@​trueadm in #​17914)
• Fix isPending only being true when transitioning from inside an input event (@​acdlite in #​17382)
• Fix React.memo components dropping updates when interrupted by a higher priority update (@​acdlite in #​18091)
• Don't warn when suspending at the wrong priority (@​gaearon in #​17971)
• Fix a bug with rebasing updates (@​acdlite and @​sebmarkbage in #​17560, #​17510, #​17483, #​17480)

v16.12.0

Compare Source

React DOM

• Fix passive effects (useEffect) not being fired in a multi-root app. (@​acdlite in #​17347)

React Is

• Fix lazy and memo types considered elements instead of components (@​bvaughn in #​17278)

v16.11.0

Compare Source

React DOM

• Fix mouseenter handlers from firing twice inside nested React containers. @​yuanoook in #​16928
• Remove unstable_createRoot and unstable_createSyncRoot experimental APIs. (These are available in the Experimental channel as createRoot and createSyncRoot.) (@​acdlite in #​17088)

v16.10.2

Compare Source

React DOM

• Fix regression in react-native-web by restoring order of arguments in event plugin extractors (@​necolas in #​16978)

v16.10.1

Compare Source

React DOM

• Fix regression in Next.js apps by allowing Suspense mismatch during hydration to silently proceed (@​sebmarkbage in #​16943)

v16.10.0

Compare Source

React DOM

• Fix edge case where a hook update wasn't being memoized. (@​sebmarkbage in #​16359)
• Fix heuristic for determining when to hydrate, so we don't incorrectly hydrate during an update. (@​sebmarkbage in #​16739)
• Clear additional fiber fields during unmount to save memory. (@​trueadm in #​16807)
• Fix bug with required text fields in Firefox. (@​halvves in #​16578)
• Prefer Object.is instead of inline polyfill, when available. (@​ku8ar in #​16212)
• Fix bug when mixing Suspense and error handling. (@​acdlite in #​16801)

Scheduler (Experimental)

• Improve queue performance by switching its internal data structure to a min binary heap. (@​acdlite in #​16245)
• Use postMessage loop with short intervals instead of attempting to align to frame boundaries with requestAnimationFrame. (@​acdlite in #​16214)

useSubscription

• Avoid tearing issue when a mutation happens and the previous update is still in progress. (@​bvaughn in #​16623)

v16.9.0

Compare Source

React

• Add <React.Profiler> API for gathering performance measurements programmatically. (@​bvaughn in #​15172)
• Remove unstable_ConcurrentMode in favor of unstable_createRoot. (@​acdlite in #​15532)

React DOM

• Deprecate old names for the UNSAFE_* lifecycle methods. (@​bvaughn in #​15186 and @​threepointone in #​16103)
• Deprecate javascript: URLs as a common attack surface. (@​sebmarkbage in #​15047)
• Deprecate uncommon "module pattern" (factory) components. (@​sebmarkbage in #​15145)
• Add support for the disablePictureInPicture attribute on <video>. (@​eek in #​15334)
• Add support for onLoad event for <embed>. (@​cherniavskii in #​15614)
• Add support for editing useState state from DevTools. (@​bvaughn in #​14906)
• Add support for toggling Suspense from DevTools. (@​gaearon in #​15232)
• Warn when setState is called from useEffect, creating a loop. (@​gaearon in #​15180)
• Fix a memory leak. (@​paulshen in #​16115)
• Fix a crash inside findDOMNode for components wrapped in <Suspense>. (@​acdlite in #​15312)
• Fix pending effects from being flushed too late. (@​acdlite in #​15650)
• Fix incorrect argument order in a warning message. (@​brickspert in #​15345)
• Fix hiding Suspense fallback nodes when there is an !important style. (@​acdlite in #​15861 and #​15882)
• Slightly improve hydration performance. (@​bmeurer in #​15998)

React DOM Server

• Fix incorrect output for camelCase custom CSS property names. (@​bedakb in #​16167)

React Test Utilities and Test Renderer

• Add act(async () => ...) for testing asynchronous state updates. (@​threepointone in #​14853)
• Add support for nesting act from different renderers. (@​threepointone in #​16039 and #​16042)
• Warn in Strict Mode if effects are scheduled outside an act() call. (@​threepointone in #​15763 and #​16041)
• Warn when using act from the wrong renderer. (@​threepointone in #​15756)

ESLint Plugin: React Hooks

• Report Hook calls at the top level as a violation. (gaearon in #​16455)

v16.8.6

Compare Source

React DOM

• Fix an incorrect bailout in useReducer(). (@​acdlite in #​15124)
• Fix iframe warnings in Safari DevTools. (@​renanvalentin in #​15099)
• Warn if contextType is set to Context.Consumer instead of Context. (@​aweary in #​14831)
• Warn if contextType is set to invalid values. (@​gaearon in #​15142)

v16.8.5

Compare Source

React DOM

• Don't set the first option as selected in select tag with size attribute. (@​kulek1 in #​14242)
• Improve the useEffect(async () => ...) warning message. (@​gaearon in #​15118)
• Improve the error message sometimes caused by duplicate React. (@​jaredpalmer in #​15139)

React DOM Server

• Improve the useLayoutEffect warning message when server rendering. (@​gaearon in #​15158)

React Shallow Renderer

• Fix setState in shallow renderer to work with Hooks. (@​gaearon in #​15120)
• Fix shallow renderer to support React.memo. (@​aweary in #​14816)
• Fix shallow renderer to support Hooks inside forwardRef. (@​eps1lon in #​15100)

v16.8.4

Compare Source

React DOM and other renderers

• Fix a bug where DevTools caused a runtime error when inspecting a component that used a useContext hook. (@​bvaughn in #​14940)

v16.8.3

Compare Source

React DOM

• Fix a bug that caused inputs to behave incorrectly in UMD builds. (@​gaearon in #​14914)
• Fix a bug that caused render phase updates to be discarded. (@​gaearon in #​14852)

React DOM Server

• Unwind the context stack when a stream is destroyed without completing, to prevent incorrect values during a subsequent render. (@​overlookmotel in #​14706)

ESLint Plugin for React Hooks

• Add a new recommended exhaustive-deps rule. (@​gaearon in #​14636)

v16.8.2

Compare Source

React DOM

• Fix ReactDOM.render being ignored inside useEffect. (@​gaearon in #​14799)
• Fix a crash when unmounting empty portals. (@​gaearon in #​14820)
• Fix useImperativeHandle to work correctly when no deps are specified. (@​gaearon in #​14801)
• Fix crossOrigin attribute to work in SVG image elements. (@​aweary in #​14832)
• Fix a false positive warning when using Suspense with Hooks. (@​gaearon in #​14821)

React Test Utils and React Test Renderer

• Include component stack into the act() warning. (@​threepointone in #​14855)

v16.8.1

Compare Source

React DOM and React Test Renderer

• Fix a crash when used together with an older version of React. (@​bvaughn in #​14770)

React Test Utils

• Fix a crash in Node environment. (@​threepointone in #​14768)

v16.8.0

Compare Source

React

• Add Hooks — a way to use state and other React features without writing a class. (@​acdlite et al. in #​13968)
• Improve the useReducer Hook lazy initialization API. (@​acdlite in #​14723)

React DOM

• Bail out of rendering on identical values for useState and useReducer Hooks. (@​acdlite in #​14569)
• Use Object.is algorithm for comparing useState and useReducer values. (@​Jessidhia in #​14752)
• Don’t compare the first argument passed to useEffect/useMemo/useCallback Hooks. (@​acdlite in #​14594)
• Support synchronous thenables passed to React.lazy(). (@​gaearon in #​14626)
• Render components with Hooks twice in Strict Mode (DEV-only) to match class behavior. (@​gaearon in #​14654)
• Warn about mismatching Hook order in development. (@​threepointone in #​14585 and @​acdlite in #​14591)
• Effect clean-up functions must return either undefined or a function. All other values, including null, are not allowed. @​acdlite in #​14119

React Test Renderer and Test Utils

• Support Hooks in the shallow renderer. (@​trueadm in #​14567)
• Fix wrong state in shouldComponentUpdate in the presence of getDerivedStateFromProps for Shallow Renderer. (@​chenesan in #​14613)
• Add ReactTestRenderer.act() and ReactTestUtils.act() for batching updates so that tests more closely match real behavior. (@​threepointone in #​14744)

ESLint Plugin: React Hooks

• Initial release. (@​calebmer in #​13968)
• Fix reporting after encountering a loop. (@​calebmer and @​Yurickh in #​14661)
• Don't consider throwing to be a rule violation. (@​sophiebits in #​14040)

v16.7.0

Compare Source

React DOM

• Fix performance of React.lazy for large numbers of lazily-loaded components. (@​acdlite in #​14429)
• Clear fields on unmount to avoid memory leaks. (@​trueadm in #​14276)
• Fix bug with SSR and context when mixing react-dom/server@16.6 and react@<16.6. (@​gaearon in #​14291)
• Fix a performance regression in profiling mode. (@​bvaughn in #​14383)

Scheduler (Experimental)

• Post to MessageChannel instead of window. (@​acdlite in #​14234)
• Reduce serialization overhead. (@​developit in #​14249)
• Fix fallback to setTimeout in testing environments. (@​bvaughn in #​14358)
• Add methods for debugging. (@​mrkev in #​14053)

v16.6.3

React DOM

• Fix bugs in Suspense and lazy. (@​acdlite in #​14133, #​14157, and #​14164)
• Fix highlighting of React.memo updates in React DevTools. (@​bvaughn in #​14141)
• Fix interaction of Suspense with the React Profiler. (@​bvaughn in #​14065)
• Fix a false positive warning when using Suspense. (@​acdlite in #​14158)

React DOM Server

• Fix incorrect sharing of context state between renderToNodeStream() calls. (@​sebmarkbage in #​14182)
• Add a warning about incorrect usage of the context API. (@​trueadm in #​14033)

v16.6.2

This release was published in a broken state and should be skipped.

v16.6.1

Compare Source

React DOM

• Fallback should not remount every time a promise resolves. (@​acdlite in #​14083)
• Fix bug where Suspense keeps showing fallback even after everything finishes loading. (@​acdlite in #​14083)
• Fix a crash when Suspense finishes loading in IE11. (@​sophiebits in #​14126)
• Fix unresolved default props in lifecycle methods of a lazy component. (@​gaearon in #​14112)
• Fix bug when recovering from an error thrown during complete phase. (@​gaearon in #​14104)

Scheduler (Experimental)

• Switch from deadline object to shouldYield API. (@​acdlite in #​14025)

v16.6.0

Compare Source

React

• Add React.memo() as an alternative to PureComponent for functions. (@​acdlite in #​13748)
• Add React.lazy() for code splitting components. (@​acdlite in #​13885)
• React.StrictMode now warns about legacy context API. (@​bvaughn in #​13760)
• React.StrictMode now warns about findDOMNode. (@​sebmarkbage in #​13841)
• Rename unstable_AsyncMode to unstable_ConcurrentMode. (@​trueadm in #​13732)
• Rename unstable_Placeholder to Suspense, and delayMs to maxDuration. (@​gaearon in #​13799 and @​sebmarkbage in #​13922)

React DOM

• Add contextType as a more ergonomic way to subscribe to context from a class. (@​bvaughn in #​13728)
• Add getDerivedStateFromError lifecycle method for catching errors in a future asynchronous server-side renderer. (@​bvaughn in #​13746)
• Warn when <Context> is used instead of <Context.Consumer>. (@​trueadm in #​13829)
• Fix gray overlay on iOS Safari. (@​philipp-spiess in #​13778)
• Fix a bug caused by overwriting window.event in development. (@​sergei-startsev in #​13697)

React DOM Server

• Add support for React.memo(). (@​alexmckenley in #​13855)
• Add support for contextType. (@​alexmckenley and @​sebmarkbage in #​13889)

Scheduler (Experimental)

• Rename the package to scheduler. (@​gaearon in #​13683)
• Support priority levels, continuations, and wrapped callbacks. (@​acdlite in #​13720 and #​13842)
• Improve the fallback mechanism in non-DOM environments. (@​acdlite in #​13740)
• Schedule requestAnimationFrame earlier. (@​acdlite in #​13785)
• Fix the DOM detection to be more thorough. (@​trueadm in #​13731)
• Fix bugs with interaction tracing. (@​bvaughn in #​13590)
• Add the envify transform to the package. (@​mridgway in #​13766)

v16.5.2

Compare Source

React DOM

• Fixed a recent <iframe> regression (@​JSteunou in #​13650)
• Fix updateWrapper so that <textarea>s no longer re-render when data is unchanged (@​joelbarbosa in #​13643)

Schedule (Experimental)

• Renaming "tracking" API to "tracing" (@​bvaughn in #​13641)
• Add UMD production+profiling entry points (@​bvaughn in #​13642)
• Refactored schedule to remove some React-isms and improve performance for when deferred updates time out (@​acdlite in #​13582)

v16.5.1

Compare Source

React

• Improve the warning when React.forwardRef receives an unexpected number of arguments. (@​andresroberto in #​13636)

React DOM

• Fix a regression in unstable exports used by React Native Web. (@​aweary in #​13598)
• Fix a crash when component defines a method called isReactComponent. (@​gaearon in #​13608)
• Fix a crash in development mode in IE9 when printing a warning. (@​link-alex in #​13620)
• Provide a better error message when running react-dom/profiling with schedule/tracking. (@​bvaughn in #​13605)
• If a ForwardRef component defines a displayName, use it in warnings. (@​probablyup in #​13615)

Schedule (Experimental)

• Add a separate profiling entry point at schedule/tracking-profiling. (@​bvaughn in #​13605)

v16.5.0

Compare Source

React

• Add a warning if React.forwardRef render function doesn't take exactly two arguments (@​bvaughn in #​13168)
• Improve the error message when passing an element to createElement by mistake (@​DCtheTall in #​13131)
• Don't call profiler onRender until after mutations (@​bvaughn in #​13572)

React DOM

• Add support for React DevTools Profiler (@​bvaughn in #​13058)
• Add react-dom/profiling entry point alias for profiling in production (@​bvaughn in #​13570)
• Add onAuxClick event for browsers that support it (@​jquense in #​11571)
• Add movementX and movementY fields to mouse events (@​jasonwilliams in #​9018)
• Add tangentialPressure and twist fields to pointer events (@​motiz88 in #​13374)
• Minimally support iframes (nested browsing contexts) in selection event handling (@​acusti in #​12037)
• Support passing booleans to the focusable SVG attribute (@​gaearon in #​13339)
• Ignore <noscript> on the client when hydrating (@​Ephem in #​13537)
• Fix gridArea to be treated as a unitless CSS property (@​mgol in #​13550)
• Fix incorrect data in compositionend event when typing Korean on IE11 (@​crux153 in #​12563)
• Fix a crash when using dynamic children in the <option> tag (@​Slowyn in #​13261, @​gaearon in #​13465)
• Fix the checked attribute not getting initially set on the input (@​dilidili in #​13114)
• Fix hydration of dangerouslySetInnerHTML when __html is not a string (@​gaearon in #​13353)
• Fix a warning about missing controlled onChange to fire on falsy values too (@​nicolevy in #​12628)
• Fix submit and reset buttons getting an empty label (@​ellsclytn in #​12780)
• Fix the onSelect event not being triggered after drag and drop (@​gaearon in #​13422)
• Fix the onClick event not working inside a portal on iOS (@​aweary in #​11927)
• Fix a performance issue when thousands of roots are re-rendered (@​gaearon in #​13335)
• Fix a performance regression that also caused onChange to not fire in some cases (@​gaearon in #​13423)
• Handle errors in more edge cases gracefully (@​gaearon in #​13237 and @​acdlite in #​13269)
• Don't use proxies for synthetic events in development (@​gaearon in #​12171)
• Warn when "false" or "true" is the value of a boolean DOM prop (@​motiz88 in #​13372)
• Warn when this.state is initialized to props (@​veekas in #​11658)
• Don't compare style on hydration in IE due to noisy false positives (@​mgol in #​13534)
• Include StrictMode in the component stack (@​gaearon in #​13240)
• Don't overwrite window.event in IE (@​ConradIrwin in #​11696)
• Improve component stack for the folder/index.js naming convention (@​gaearon in #​12059)
• Improve a warning when using getDerivedStateFromProps without initialized state (@​flxwu in #​13317)
• Improve a warning about invalid textarea usage (@​raunofreiberg in #​13361)
• Treat invalid Symbol and function values more consistently (@​raunofreiberg in #​13362 and #​13389)
• Allow Electron <webview> tag without warnings (@​philipp-spiess in #​13301)
• Don't show the uncaught error addendum if e.preventDefault() was called (@​gaearon in #​13384)
• Warn about rendering Generators (@​gaearon in #​13312)
• Remove irrelevant suggestion of a legacy method from a warning (@​zx6658 in #​13169)
• Remove unstable_deferredUpdates in favor of unstable_scheduleWork from schedule (@​gaearon in #​13488)
• Fix unstable asynchronous mode from doing unnecessary work when an update takes too long (@​acdlite in #​13503)

React DOM Server

• Fix crash with nullish children when using dangerouslySetInnerHtml in a selected <option> (@​mridgway in #​13078)
• Fix crash when setTimeout is missing (@​dustinsoftware in #​13088)

React Test Renderer and Test Utils

• Fix this in a functional component for shallow renderer to be undefined (@​koba04 in #​13144)
• Deprecate a Jest-specific ReactTestUtils.mockComponent() helper (@​bvaughn in #​13193)
• Warn about ReactDOM.createPortal usage within the test renderer (@​bvaughn in #​12895)
• Improve a confusing error message (@​gaearon in #​13351)

React ART

• Add support for DevTools (@​yunchancho in #​13173)

Schedule (Experimental)

• New package for cooperatively scheduling work in a browser environment. It's used by React internally, but its public API is not finalized yet. (@​flarnie in #​12624)

v16.4.2

Compare Source

React DOM Server

• Fix a potential XSS vulnerability when the attacker controls an attribute name (CVE-2018-6341). This fix is available in the latest react-dom@16.4.2, as well as in previous affected minor versions: react-dom@16.0.1, react-dom@16.1.2, react-dom@16.2.1, and react-dom@16.3.3. (@​gaearon in #​13302)

• Fix a crash in the server renderer when an attribute is called hasOwnProperty. This fix is only available in react-dom@16.4.2. (@​gaearon in #​13303)

v16.4.1

Compare Source

React

• You can now assign propTypes to components returned by React.ForwardRef. (@​bvaughn in #​12911)

React DOM

• Fix a crash when the input type changes from some other types to text. (@​spirosikmd in #​12135)
• Fix a crash in IE11 when restoring focus to an SVG element. (@​ThaddeusJiang in #​12996)
• Fix a range input not updating in some cases. (@​Illu in #​12939)
• Fix input validation triggering unnecessarily in Firefox. (@​nhunzaker in #​12925)
• Fix an incorrect event.target value for the onChange event in IE9. (@​nhunzaker in #​12976)
• Fix a false positive error when returning an empty <React.Fragment /> from a component. (@​philipp-spiess in #​12966)

React DOM Server

• Fix an incorrect value being provided by new context API. (@​ericsoderberghp in #​12985, @​gaearon in #​13019)

React Test Renderer

• Allow multiple root children in test renderer traversal API. (@​gaearon in #​13017)
• Fix getDerivedStateFromProps() in the shallow renderer to not discard the pending state. (@​fatfisz in #​13030)

v16.4.0

Compare Source

React

• Add a new experimental React.unstable_Profiler component for measuring performance. (@​bvaughn in #​12745)

React DOM

• Add support for the Pointer Events specification. (@​philipp-spiess in #​12507)
• Properly call getDerivedStateFromProps() regardless of the reason for re-rendering. (@​acdlite in #​12600 and #​12802)
• Fix a bug that prevented context propagation in some cases. (@​gaearon in #​12708)
• Fix re-rendering of components using forwardRef() on a deeper setState(). (@​gaearon in #​12690)
• Fix some attributes incorrectly getting removed from custom element nodes. (@​airamrguez in #​12702)
• Fix context providers to not bail out on children if there's a legacy context provider above. (@​gaearon in #​12586)
• Add the ability to specify propTypes on a context provider component. (@​nicolevy in #​12658)
• Fix a false positive warning when using react-lifecycles-compat in <StrictMode>. (@​bvaughn in #​12644)
• Warn when the forwardRef() render function has propTypes or defaultProps. (@​bvaughn in #​12644)
• Improve how forwardRef() and context consumers are displayed in the component stack. (@​sophiebits in #​12777)
• Change internal event names. This can break third-party packages that rely on React internals in unsupported ways. (@​philipp-spiess in #​12629)

React Test Renderer

• Fix the getDerivedStateFromProps() support to match the new React DOM behavior. (@​koba04 in #​12676)
• Fix a testInstance.parent crash when the parent is a fragment or another special node. (@​gaearon in #​12813)
• forwardRef() components are now discoverable by the test renderer traversal methods. (@​gaearon in #​12725)
• Shallow renderer now ignores setState() updaters that return null or undefined. (@​koba04 in #​12756)

React ART

• Fix reading context provided from the tree managed by React DOM. (@​acdlite in #​12779)

React Call Return (Experimental)

• This experiment was deleted because it was affecting the bundle size and the API wasn't good enough. It's likely to come back in the future in some other form. (@​gaearon in #​12820)

React Reconciler (Experimental)

• The new host config shape is flat and doesn't use nested objects. (@​gaearon in #​12792)

v16.3.2

Compare Source

React

• Improve the error message when passing null or undefined to React.cloneElement. (@​nicolevy in #​12534)

React DOM

• Fix an IE crash in development when using <StrictMode>. (@​bvaughn in #​12546)
• Fix labels in User Timing measurements for new component types. (@​bvaughn in #​12609)
• Improve the warning about wrong component type casing. (@​nicolevy in #​12533)
• Improve general performance in development mode. (@​gaearon in #​12537)
• Improve performance of the experimental unstable_observedBits API with nesting. (@​gaearon in #​12543)

React Test Renderer

• Add a UMD build. (@​bvaughn in #​12594)

v16.3.1

Compare Source

React

• Fix a false positive warning in IE11 when using Fragment. (@​heikkilamarko in #​12504)
• Prefix a private API. (@​Andarist in #​12501)
• Improve the warning when calling setState() in constructor. (@​gaearon in #​12532)

React DOM

• Fix getDerivedStateFromProps() not getting applied in some cases. (@​acdlite in #​12528)
• Fix a performance regression in development mode. (@​gaearon in #​12510)
• Fix error handling bugs in development mode. (@​gaearon and @​acdlite in #​12508)
• Improve user timing API messages for profiling. (@​flarnie in #​12384)

Create Subscription

• Set the package version to be in sync with React releases. (@​bvaughn in #​12526)
• Add a peer dependency on React 16.3+. (@​NMinhNguyen in #​12496)

v16.3.0

Compare Source

React

• Add a new officially supported context API. (@​acdlite in #​11818)
• Add a new React.createRef() API as an ergonomic alternative to callback refs. (@​trueadm in #​12162)
• Add a new React.forwardRef() API to let components forward their refs to a child. (@​bvaughn in #​12346)
• Fix a false positive warning in IE11 when using React.Fragment. (@​XaveScor in #​11823)
• Replace React.unstable_AsyncComponent with React.unstable_AsyncMode. (@​acdlite in #​12117)
• Improve the error message when calling setState() on an unmounted component. (@​sophiebits in #​12347)

React DOM

• Add a new getDerivedStateFromProps() lifecycle and UNSAFE_ aliases for the legacy lifecycles. (@​bvaughn in #​12028)
• Add a new getSnapshotBeforeUpdate() lifecycle. (@​bvaughn in #​12404)
• Add a new <React.StrictMode> wrapper to help prepare apps for async rendering. ([@​bvaughn

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