11.0.0-rc.1

Features

• Tree-shake feature-specific compat hooks (#5203, thanks @JoviDeCroock)

Bundle size

• Simplify toChildArray guards (#5214, thanks @JoviDeCroock)
• Remove unused memo factory state (#5213, thanks @JoviDeCroock)
• Remove redundant textarea hydration hook (#5212, thanks @JoviDeCroock)
• Require prop type stack getter (#5210, thanks @JoviDeCroock)

Types

• Add missing lowercased html attributes to dom.d.ts (#5207, thanks @teddybradford)

Maintenance

• Clarify staged npm release approval flow (#5204, thanks @JoviDeCroock)
• Declare the sass dependency vite's scss compilation needs (#5206, thanks @upupming)
• Cover JSX refs and event bubbling (#5211, thanks @JoviDeCroock)
• Fix parameter description in getHookState function (#5209, thanks @exedealer)

11.0.0-rc.0

Features

• implement use in compat (#5186, thanks @JoviDeCroock)
• Implement getServerSnapshot for useSyncExternalStore (#4979, thanks @ssssota)
• Support createPortal in core (#5168, thanks @JoviDeCroock)
• Add useEffectEvent hook to compat (#5141, thanks @Mesoptier)

Correctness

• Leverage moveBefore rather than insertBefore when available (#5161, thanks @JoviDeCroock)
• Avoid mutating user-provided style objects when appending px (#5117, thanks @JSap0914)
• Fix reusing template element content (#5192, thanks @JoviDeCroock)
• Fix dirty child strict equality bailout (#5193, thanks @JoviDeCroock)
• Add the constructor in when cloning VNodes (#5195, thanks @JoviDeCroock)
• Defer passive effect cleanup on unmount (#5196, thanks @JoviDeCroock)

Performance

• Compute minimal child moves with a longest increasing subsequence (#5174, thanks @JoviDeCroock)
• Batch updates in flushSync (#5175, thanks @JoviDeCroock)
• Avoid traversing retained subtrees (#5183, thanks @JoviDeCroock)
• Reduce core bundle size in v11 (#5167, thanks @JoviDeCroock)
• Reduce bundle size before release candidates go live (#5197, thanks @JoviDeCroock)
• Hoist _children into a local in constructNewChildrenArray (#5198, thanks @JoviDeCroock)
• Reduce Preact core compressed size (#5199, thanks @JoviDeCroock)

Maintenance

• Bump reported React version to 19.0.0 (#5171, thanks @JoviDeCroock)
• Remove debug re-throw (#5190, thanks @JoviDeCroock)
• Commit pending hook state in options._render (#5187, thanks @JoviDeCroock)
• Remove straggler forwarded (#5178, thanks @JoviDeCroock)
• Derive document from parentDom instead of threading it (#5180, thanks @JoviDeCroock)
• Remove redundant portal children guard (#5179, thanks @JoviDeCroock)
• Restore _bits mangle for Preact ISO (#5200, thanks @JoviDeCroock)
• Update contribution build commands (#5166, thanks @Minsecrus)
• Remove unused dependencies (#5160, thanks @JoviDeCroock)
• Avoid Trusted Types violation when dangerouslySetInnerHTML is re… (#4935, thanks @lukewarlow)
• Introduce a modern build setup (#5159, thanks @JoviDeCroock)

10.29.8

Performance

• Batch updates in flushSync (#5173, thanks @JoviDeCroock)
• Avoid traversing retained subtrees (#5182, thanks @JoviDeCroock)

11.0.0-beta.2

Forward porting

• Frontport 10.29.4 (#5139, thanks @JoviDeCroock)
• Frontport 10.29.3 (#5122, thanks @JoviDeCroock)
• Forwardport v10.x fixes since 2026-03-25 (#5089, thanks @JoviDeCroock)
• Forwardport from v10 (#5053, thanks @JoviDeCroock)

Features

• Implement streamed hydration rfc (#5035, thanks @JoviDeCroock)

Types

• Remove erroneous 'type' attribute from select element types (#5097, thanks @rschristian)
• Accept Signalish for input type (#5095, thanks @JoviDeCroock)

Fixes

• Fix compat Suspense hydration children recovery (#5146, thanks @JoviDeCroock)
• Check nodeType instead of the global document (#5119, thanks @natemoo-re)
• Fix Suspense undefined prop revalidation (#5133, thanks @JoviDeCroock)
• Fix error recovery for partially rendered subtrees (#5120, thanks @JoviDeCroock)
• Fix useId stability across async Suspense (#5108, thanks @JoviDeCroock)
• Flush subtree effects (#5055, thanks @JoviDeCroock)
• Fix memory leak hotspots (#5116, thanks @JoviDeCroock)
• Fix hydrate recovery with null excess DOM children (#5112, thanks @JoviDeCroock)
• Fix buggy edge case (#5092, thanks @JoviDeCroock)
• Preserve falsy key and ref values in cloneElement (#5082, thanks @Olexandr88)

Performance

• Use Symbols for the event clock keys (#5143, thanks @JoviDeCroock)
• Performance: compat shallowDiffers (#4780, thanks @romgrk)
• Avoid redundant allocations and writes (#5115, thanks @JoviDeCroock)
• Use .push.apply (#5024, thanks @JoviDeCroock)

Maintenance

• Bump pinned GitHub actions (#5110, thanks @JoviDeCroock)
• Fix typo in vitest config (#5111, thanks @kumavis)
• Use npm staged publishing (#5100, thanks @JoviDeCroock)
• Harden trusted publish workflow (#5099, thanks @JoviDeCroock)
• Add tier 3 sponsor logos (#5093, thanks @JoviDeCroock)
• Add trusted publishing workflow for main (#5086, thanks @JoviDeCroock)
• Add chai to dev dependencies to make pnpm install work (#5043, thanks @marvinhagemeister)

10.29.7

Maintenance

• Make RTS optional peer dep (#5150, thanks @JoviDeCroock)

10.29.6

We had to revert #5055 due to an incompatibility with useSignalEffect

10.29.5

Fixes

• Compat Suspense hydration children recovery (#5144, thanks @JoviDeCroock)

10.29.4

Fixes

• Fix hydration-suspense crashing due to sCU bail (#5134, thanks @JoviDeCroock)
• Revert "Fix useId stability across async Suspense (#5108)" (#5135, thanks @JoviDeCroock)

10.29.3

Fixes

• Fix error recovery for partially rendered subtrees (#5120, thanks @JoviDeCroock)
• Fix useId stability across async Suspense (#5108, thanks @JoviDeCroock)
• Flush subtree effects when rendering a pending node (#5055, thanks @JoviDeCroock)
• Fix hydrate recovery with null excess DOM children (#5112, thanks @JoviDeCroock)

Performance

• Address and guard memory leak hotspots (#5116, thanks @JoviDeCroock)
• Avoid redundant allocations and writes (#5115, thanks @JoviDeCroock)

Types

• Accept Signalish for input DOM-type (#5096, thanks @JoviDeCroock)

Maintenance

• Use npm staged publishing (#5101, thanks @JoviDeCroock)
• Add tier 3 sponsor logos (#5098, thanks @JoviDeCroock)

10.29.2

Fixes

• Fix hydration when we have defaultValue or value on a textarea (#5081, thanks @JoviDeCroock)

Maintenance

• Add CODEOWNERS for GitHub configuration (v10.x) (#5088, thanks @JoviDeCroock)
• Fix trusted publishing workflow (#5084, thanks @JoviDeCroock)
• Trusted publishing (#5072, thanks @JoviDeCroock)