v16.14.0

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React

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

v16.13.1

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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

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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

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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

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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

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React DOM

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

v16.10.1

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React DOM

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

v16.10.0

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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)