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react v18.2.0 Release Notes

Release Date: 2022-06-14 // 12 months ago

  • React DOM

    • Provide a component stack as a second argument to onRecoverableError. (@gnoff in #24591)
    • 🛠 Fix hydrating into document causing a blank page on mismatch. (@gnoff in #24523)
    • 🛠 Fix false positive hydration errors with Suspense. (@gnoff in #24480 and @acdlite in #24532)
    • 🛠 Fix ignored setState in Safari when adding an iframe. (@gaearon in #24459)

    React DOM Server

    • Pass information about server errors to the client. (@salazarm and @gnoff in #24551 and #24591)
    • 👍 Allow to provide a reason when aborting the HTML stream. (@gnoff in #24680)
    • Eliminate extraneous text separators in the HTML where possible. (@gnoff in #24630)
    • 💻 Disallow complex children inside <title> elements to match the browser constraints. (@gnoff in #24679)
    • 🛠 Fix buffering in some worker environments by explicitly setting highWaterMark to 0. (@jplhomer in #24641)

    Server Components (Experimental)

    • ➕ Add support for useId() inside Server Components. (@gnoff) in #24172

Previous changes from v18.1.0

  • React DOM

    • 🛠 Fix the false positive warning about react-dom/client when using UMD bundle. (@alireza-molaee in #24274)
    • 🛠 Fix suppressHydrationWarning to work in production too. (@gaearon in #24271)
    • 🛠 Fix componentWillUnmount firing twice inside of Suspense. (@acdlite in #24308)
    • 🛠 Fix some transition updates being ignored. (@acdlite in #24353)
    • 🛠 Fix useDeferredValue causing an infinite loop when passed an unmemoized value. (@acdlite in #24247)
    • 🛠 Fix throttling of revealing Suspense fallbacks. (@sunderls in #24253)
    • 🛠 Fix an inconsistency in whether the props object is the same between renders. (@Andarist and @acdlite in #24421)
    • 🛠 Fix a missing warning about a setState loop in useEffect. (@gaearon in #24298)
    • 🛠 Fix a spurious hydration error. (@gnoff in #24404)
    • Warn when calling setState in useInsertionEffect. (@gaearon in #24295)
    • Ensure the reason for hydration errors is always displayed. (@gaearon in #24276)

    React DOM Server

    • 🛠 Fix escaping for the bootstrapScriptContent contents. (@gnoff in #24385)
    • 🐎 Significantly improve performance of renderToPipeableStream. (@gnoff in #24291)

    👕 ESLint Plugin: React Hooks

    • 🛠 Fix false positive errors with a large number of branches. (@scyron6 in #24287)
    • Don't consider a known dependency stable when the variable is reassigned. (@afzalsayed96 in #24343)

    👉 Use Subscription

    • 🔀 Replace the implementation with the use-sync-external-store shim. (@gaearon in #24289)