Integrate React NativeIntegrate React Native 0.87.0-nightly-20260519-58cd1bf58 (May 19th) 0.87.0-nightly-20260519-58cd1bf58

[anuagragith]

Summary

Integrates React Native Windows with react-native@0.87.0-nightly-20260519-58cd1bf58.

Upstream React Native changes:
react/react-native@1181985...58cd1bf

This update:

• Updates React Native and related @react-native/* dependencies throughout the monorepo.
• Updates platform overrides and incorporates the corresponding upstream RNTester changes.
• Preserves Windows-specific accessibility, keyboard, View, Touchable, Pressability, ScrollView, and Modal behavior.
• Updates Flow to 0.314.
• Updates the native Appearance module for the RN 0.87 codegen contract.
• Integrates the relevant upstream ReactCommon changes.

Validation

• Immutable Yarn install
• Override validation
• Build
• Lint and Flow
• Tests
• Formatting verification
• Beachball validation
• x64 and x86 New Architecture native builds
• x64 Desktop/Paper native build
• Composition Playground build and manual smoke test with Metro
• Fabric RNTester build

Microsoft Reviewers: Open in CodeFlow

[Copilot]

🟡 Changes recommended

Four moderate issues remain in public type generation and RNTester image cache-buster URLs.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Integrates React Native Windows with React Native 0.87.0-nightly-20260519-58cd1bf58, including dependency, override, native contract, and RNTester updates.

Changes:

• Updates React Native, Flow, Hermes, TypeScript, and related dependencies.
• Synchronizes Windows/Win32 overrides and ReactCommon changes.
• Adds RNTester image and animation-backend coverage.

File summaries

File	Review
yarn.lock	Refreshes dependency resolutions.
vnext/src-win/Libraries/Text/TextProps.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Pressability/Pressability.windows.js	Fixes hover-out timer tracking.
vnext/src-win/Libraries/Modal/Modal.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/View/ViewPropTypes.windows.js	Adds View type metadata.
vnext/src-win/Libraries/Components/View/View.windows.js	Synchronizes with upstream formatting.
vnext/src-win/Libraries/Components/Touchable/TouchableWithoutFeedback.windows.js	Moderate (2 votes): Move @build-types from the Windows-only type to TouchableWithoutFeedbackProps so public interface emission remains available.
vnext/src-win/Libraries/Components/Touchable/TouchableHighlight.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/TextInput/TextInput.flow.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/Switch/Switch.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/ScrollView/ScrollView.windows.js	Integrates upstream behavior and types.
vnext/src-win/Libraries/Components/RefreshControl/RefreshControl.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/Pressable/Pressable.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/Button.windows.js	Adds type-generation metadata.
vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js	Updates accessibility events.
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp	Integrates renderer lifecycle and race fixes.
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/attributedstring/TextAttributes.cpp	Adds text-effects handling.
vnext/package.json	Updates RNW dependencies and peers.
vnext/overrides.json	Advances override hashes and base version.
vnext/Microsoft.ReactNative/Modules/AppearanceModule.h	Updates the Appearance codegen contract.
vnext/Microsoft.ReactNative/Modules/AppearanceModule.cpp	Implements the updated Appearance signature.
vnext/.flowconfig	Requires Flow 0.314.
packages/sample-custom-component/package.json	Updates sample dependencies.
packages/sample-app-fabric/package.json	Updates Fabric sample dependencies.
packages/react-native-windows-init/package.json	Updates the integration dependency.
packages/playground/package.json	Updates Playground dependencies.
packages/e2e-test-app-fabric/package.json	Updates E2E app dependencies.
packages/@rnw-scripts/metro-dev-config/package.json	Updates Metro and React Native dependencies.
packages/@rnw-scripts/integrate-rn/package.json	Updates integration tooling’s RN version.
packages/@rnw-scripts/eslint-config/package.json	Updates upstream ESLint configuration.
packages/@rnw-scripts/babel-react-native-config/package.json	Updates the Babel preset.
packages/@react-native/tester/package.json	Synchronizes RNTester metadata and dependencies.
packages/@react-native/tester/overrides.json	Advances RNTester override hashes.
packages/@react-native/tester/js/examples/Image/ImageExample.js	Moderate (2 votes): Restore the missing query delimiter for cache-busters at lines 572 and 684; otherwise the JPEG path is invalid.
packages/@react-native/tester/js/examples/Experimental/PlatformTest/RNTesterPlatformTestResultView.js	Updates result layout.
packages/@react-native/tester/js/examples/Experimental/PlatformTest/RNTesterPlatformTestResultsText.js	Adds result IDs and spacing.
packages/@react-native/tester/js/examples/Experimental/PlatformTest/RNTesterPlatformTestMinimizedResultView.js	Updates minimized-result layout.
packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js	Updates color-scheme behavior.
packages/@react-native/tester/js/examples/AnimationBackend/PerformanceTestExample.js	Adds an animation performance example.
packages/@react-native/tester/js/examples/AnimationBackend/AnimationBackendIndex.js	Registers animation examples.
packages/@react-native/tester/js/examples/AnimationBackend/AllAnimatedPropsExample.js	Adds comprehensive animated-property coverage.
packages/@react-native/monorepo/package.json	Updates upstream monorepo tooling.
packages/@react-native/monorepo/overrides.json	Advances monorepo override metadata.
packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js	Moderate (2 votes): Restore the missing query delimiter for cache-busters at lines 606 and 821; otherwise the Windows JPEG path is invalid.
packages/@react-native-windows/tester/package.json	Updates Windows tester dependencies.
packages/@react-native-windows/tester/overrides.json	Advances Windows tester overrides.
packages/@react-native-windows/perf-testing/package.json	Updates the React Native peer dependency.
packages/@react-native-windows/cli/package.json	Updates CLI development dependencies.
packages/@react-native-windows/automation-channel/package.json	Updates automation dependencies.
packages/@office-iss/react-native-win32/src-win/src/private/animated/NativeAnimatedHelper.win32.js	Guards optional animated backend support.
packages/@office-iss/react-native-win32/src-win/Libraries/Text/TextProps.win32.js	Adds type-generation metadata.
packages/@office-iss/react-native-win32/src-win/Libraries/Pressability/Pressability.win32.js	Fixes hover-out timer tracking.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/ViewPropTypes.win32.js	Moderate (2 votes): Move @build-types from HandledKeyboardEvent to ViewProps so the public interface is emitted for Nativewind/Expo compatibility.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js	Updates text ancestor context.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/TextInput/TextInput.flow.win32.js	Adds type-generation metadata.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/Pressable/Pressable.win32.js	Adds type-generation metadata.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/Button.win32.js	Adds type-generation metadata.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js	Updates accessibility events.
packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.d.ts	Updates public accessibility declarations.
packages/@office-iss/react-native-win32/package.json	Updates Win32 dependencies and peers.
packages/@office-iss/react-native-win32/overrides.json	Advances Win32 override hashes.
packages/@office-iss/react-native-win32/.flowconfig	Requires Flow 0.314.
packages/@office-iss/react-native-win32-tester/package.json	Updates Win32 tester dependencies.
packages/@office-iss/react-native-win32-tester/overrides.json	Advances Win32 tester overrides.
package.json	Updates the root React Native dependency.
change/react-native-windows-init-c5ae7d1c-1132-4cee-80f2-79f6a9aa0b4d.json	Adds the init package change record.
change/react-native-windows-254122ae-7bce-4975-8525-f33d13e656d3.json	Adds the RNW change record.
change/@react-native-windows-perf-testing-d1533cf9-5a10-47c5-bd07-43eaece19192.json	Adds the performance package change record.
change/@react-native-windows-cli-aa343563-7366-418a-b528-6a4fef2fbf96.json	Adds the CLI change record.
change/@react-native-windows-automation-channel-23b56dc7-86c4-49f6-8d80-1625bae2e1fe.json	Adds the automation change record.
change/@office-iss-react-native-win32-5b2bd2a8-dc7c-4aae-940d-dbd686d9b680.json	Adds the Win32 change record.

Review details

Suppressed comments (2)

packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js:826

• The Windows override points IMAGE1 at the checked-in flux@3x.png, whose intrinsic size is 99×99, so this platform test will always report two failures. Update the expectations to match the retained Windows asset.

  {
    expectedHeight: 492,
    expectedWidth: 960,
    uri: IMAGE1,
    name: 'large PNG',
  },

packages/@react-native/tester/js/examples/Image/ImageExample.js:689

• IMAGE1 in this fork is an embedded 8×8 PNG, so this new test deterministically compares Image.getSize against the wrong 960×492 dimensions and fails. Keep the local asset override and update the expected metadata accordingly.

• Files reviewed: 69/71 changed files
• Comments generated: 4
• Review effort level: Balanced

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