Integrate React Native 0.86 March 10 nightly - #16397
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 272e5076-5e5a-4139-8412-8b4e7f59f370
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Pull request overview
Advances React Native Windows to the React Native 0.86 March 10 nightly and synchronizes native integration, platform overrides, RNTester content, and validation assets.
Changes:
- Updates React Native, Flow, templates, package manifests, and lockfile resolutions.
- Integrates new Fabric observers, view transitions, TurboModules, and event timestamps.
- Synchronizes RNTester examples, test IDs, E2E snapshots, and Beachball changes.
Reviewed changes
Copilot reviewed 80 out of 81 changed files in this pull request and generated 7 comments.
Show a summary per file
| File | Description |
|---|---|
yarn.lock |
Updates dependency resolutions. |
vnext/src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js |
Updates Flow generic syntax. |
vnext/src-win/Libraries/Network/RCTNetworking.windows.js |
Updates Flow generic syntax. |
vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js |
Updates Flow syntax. |
vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js |
Adds ARIA and ID attributes. |
vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js |
Synchronizes accessibility behavior. |
vnext/Shared/Shared.vcxitems |
Adds new Fabric sources. |
vnext/Scripts/Warm-RnwFeedCache.ps1 |
Updates the nightly example. |
vnext/Scripts/creaternwapp.cmd |
Updates the app template. |
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp |
Adds view-transition delegates. |
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h |
Adds timestamp primitives. |
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp |
Propagates event timestamps. |
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp |
Adds default TurboModules. |
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp |
Uses the shared Base64 utility. |
vnext/package.json |
Updates RN and Flow versions. |
vnext/overrides.json |
Advances override baselines. |
vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj |
Changes warning suppression. |
vnext/Desktop/React.Windows.Desktop.vcxproj |
Changes warning suppression. |
vnext/.flowconfig |
Requires Flow 0.304. |
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 RN dependency. |
packages/playground/package.json |
Updates Playground dependencies. |
packages/e2e-test-app-fabric/test/PointerClickEventsTest.test.ts |
Validates pointer timestamps. |
packages/e2e-test-app-fabric/test/ImageComponentTest.test.ts |
Updates the nested-image selector. |
packages/e2e-test-app-fabric/test/__snapshots__/snapshotPages.test.js.snap |
Synchronizes RNTester snapshots. |
packages/e2e-test-app-fabric/test/__snapshots__/ImageComponentTest.test.ts.snap |
Updates the image snapshot. |
packages/e2e-test-app-fabric/package.json |
Updates E2E dependencies. |
packages/@rnw-scripts/metro-dev-config/package.json |
Updates Metro and RN. |
packages/@rnw-scripts/integrate-rn/package.json |
Updates template and RN versions. |
packages/@rnw-scripts/eslint-config/package.json |
Updates RN ESLint config. |
packages/@rnw-scripts/babel-react-native-config/package.json |
Updates the Babel preset. |
packages/@react-native/tester/package.json |
Advances RNTester nightly. |
packages/@react-native/tester/overrides.json |
Advances RNTester overrides. |
packages/@react-native/tester/js/utils/RNTesterList.ios.js |
Registers the C++ module example. |
packages/@react-native/tester/js/utils/RNTesterList.android.js |
Registers the C++ module example. |
packages/@react-native/tester/js/examples/TurboModule/TurboCxxModuleExample.js |
Adds the TurboModule example. |
packages/@react-native/tester/js/examples/Transform/TransformExample.js |
Adds names and test IDs. |
packages/@react-native/tester/js/examples/Touchable/TouchableExample.js |
Synchronizes Touchable examples. |
packages/@react-native/tester/js/examples/Text/TextSharedExamples.js |
Makes the link example testable. |
packages/@react-native/tester/js/examples/Text/TextExample.ios.js |
Adds text test identifiers. |
packages/@react-native/tester/js/examples/Text/TextExample.android.js |
Adds text test containers. |
packages/@react-native/tester/js/examples/Pressable/PressableExample.js |
Adds stable example names. |
packages/@react-native/tester/js/examples/Image/ImageExample.js |
Adds image names and test IDs. |
packages/@react-native/tester/js/examples/Filter/FilterExample.js |
Adds filter test IDs. |
packages/@react-native/tester/js/examples/Button/ButtonExample.js |
Adds stable example names. |
packages/@react-native/tester/js/examples/BoxShadow/BoxShadowExample.js |
Adds names and test containers. |
packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js |
Names theme examples. |
packages/@react-native/tester/js/examples/Alert/AlertExample.js |
Names alert examples. |
packages/@react-native/tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js |
Names indicator examples. |
packages/@react-native/monorepo/package.json |
Updates Metro and Flow. |
packages/@react-native/monorepo/overrides.json |
Advances the monorepo baseline. |
packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js |
Adds the C++ module entry. |
packages/@react-native-windows/tester/src/js/examples/Touchable/TouchableExample.windows.js |
Synchronizes Touchable overrides. |
packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js |
Synchronizes the link example. |
packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js |
Synchronizes text identifiers. |
packages/@react-native-windows/tester/src/js/examples/Pressable/PressableExample.windows.js |
Synchronizes Pressable names. |
packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js |
Synchronizes image metadata. |
packages/@react-native-windows/tester/src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js |
Synchronizes indicator names. |
packages/@react-native-windows/tester/src/js/examples-win/Button/ButtonExample.windows.js |
Synchronizes button names. |
packages/@react-native-windows/tester/package.json |
Updates tester dependencies. |
packages/@react-native-windows/tester/overrides.json |
Advances Windows overrides. |
packages/@react-native-windows/perf-testing/package.json |
Updates the RN peer version. |
packages/@react-native-windows/cli/package.json |
Updates the RN development version. |
packages/@react-native-windows/automation-channel/package.json |
Updates the RN development version. |
packages/@office-iss/react-native-win32/src-win/Libraries/Network/RCTNetworking.win32.js |
Updates Flow generic syntax. |
packages/@office-iss/react-native-win32/src-win/Libraries/NativeComponent/BaseViewConfig.win32.js |
Adds ARIA and ID attributes. |
packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js |
Synchronizes accessibility behavior. |
packages/@office-iss/react-native-win32/package.json |
Updates Win32 dependencies. |
packages/@office-iss/react-native-win32/overrides.json |
Advances Win32 overrides. |
packages/@office-iss/react-native-win32/.flowconfig |
Requires Flow 0.304. |
packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js |
Adds the C++ module entry. |
packages/@office-iss/react-native-win32-tester/package.json |
Updates Win32 tester dependencies. |
packages/@office-iss/react-native-win32-tester/overrides.json |
Advances tester overrides. |
package.json |
Updates the root RN version. |
change/react-native-windows-init-53ef3775-da45-4571-b19b-dc779c19e5cc.json |
Adds an init prerelease change. |
change/react-native-windows-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json |
Adds an RNW prerelease change. |
change/@react-native-windows-perf-testing-33791a23-ae76-4ba0-bf50-49a940d870e8.json |
Adds a performance prerelease change. |
change/@react-native-windows-cli-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json |
Adds a CLI prerelease change. |
change/@react-native-windows-automation-channel-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json |
Adds an automation prerelease change. |
change/@office-iss-react-native-win32-851c2fb9-e545-430b-bbf9-bcc1431006f0.json |
Adds a Win32 prerelease change. |
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Comment on lines
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| static HighResTimeStamp getTimestampFromTouchEvent(const TouchEvent& event) { | ||
| if (!event.changedTouches.empty()) { | ||
| const auto& firstChangedTouch = *event.changedTouches.begin(); | ||
| return firstChangedTouch.timeStamp; | ||
| } |
| .EXAMPLE | ||
| # Warm against explicit versions and keep the generated projects to inspect: | ||
| ./Warm-RnwFeedCache.ps1 -ReactNativeVersion 0.85.0-nightly-20260303-c26dbe286 -KeepWorkDir | ||
| ./Warm-RnwFeedCache.ps1 -ReactNativeVersion 0.86.0-nightly-20260310-621592d1f -KeepWorkDir |
Comment on lines
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| { | ||
| key: 'TurboCxxModuleExample', | ||
| category: 'Basic', | ||
| module: require('../examples/TurboModule/TurboCxxModuleExample'), | ||
| }, |
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
|
|
||
| #include "DefaultTurboModules.h" |
Comment on lines
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| { | ||
| key: 'TurboCxxModuleExample', | ||
| category: 'Basic', | ||
| module: require('../examples/TurboModule/TurboCxxModuleExample'), | ||
| }, |
| %(PreprocessorDefinitions) | ||
| </PreprocessorDefinitions> | ||
| <AdditionalUsingDirectories>$(WindowsSDK_WindowsMetadata);$(AdditionalUsingDirectories)</AdditionalUsingDirectories> | ||
| <DisableSpecificWarnings>4715;%(DisableSpecificWarnings)</DisableSpecificWarnings> |
| %(AdditionalIncludeDirectories); | ||
| </AdditionalIncludeDirectories> | ||
| <AdditionalOptions>%(AdditionalOptions) /Zc:strictStrings /bigobj</AdditionalOptions> | ||
| <DisableSpecificWarnings>4715;%(DisableSpecificWarnings)</DisableSpecificWarnings> |
Use the same @react-native-community/template version as createnwapp.cmd so authenticated warm-up runs cache the package closure required by CLI verification jobs. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 272e5076-5e5a-4139-8412-8b4e7f59f370
Contributor
There was a problem hiding this comment.
Pull request overview
Copilot reviewed 80 out of 81 changed files in this pull request and generated no new comments.
Suppressed comments (6)
Previously missed (2) — in code that hasn't changed since the last review.
packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js:494
- RNW has no native provider for
NativeCxxModuleExampleCxx; the only Windows-side definition is a nullable JS spec, and every action in this example optional-chains the missing module. This menu item therefore exposes controls that produce no results. Remove the entry until the Windows native implementation is registered.
{
key: 'TurboCxxModuleExample',
category: 'Basic',
module: require('../examples/TurboModule/TurboCxxModuleExample'),
},
packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js:387
- Win32 has no native provider for
NativeCxxModuleExampleCxx; the local spec is nullable and the example's actions consequently no-op. Remove this menu entry until a Win32 native implementation is registered.
{
key: 'TurboCxxModuleExample',
category: 'Basic',
module: require('../examples/TurboModule/TurboCxxModuleExample'),
},
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp:8
- This file is copied over the installed React Native source by
ReactCommon.vcxproj:289-298and intentionally differs from the target upstream file, but it has no entry invnext/overrides.json. Unlike the adjacent TEMP patches registered atvnext/overrides.json:193-202,validate-overridestherefore cannot detect or rebase future upstream changes to this override. Add apatchentry targetingpackages/react-native/ReactCommon/react/nativemodule/defaults/DefaultTurboModules.cppwith the target base hash.
vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp:48 - This now timestamps touch events from
Touch::timeStamp, but the Windows producer only refreshes the separate legacyTouch::timestampinCompositionEventHandler.cpp:1041-1043. The sameActiveTouchis reused for move and end dispatches, so those RawEvents retain the timestamp created at pointer-down instead of the current event time. UpdateUpdateActiveTouchto refreshtimeStamp(using the steady/high-resolution clock) before dispatching each touch event.
vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj:143 - This suppresses C4715 for every
Microsoft.ReactNativetranslation unit, allowing future non-void functions with missing returns to compile despiteTreatWarningAsError. The established pattern scopes this warning to individual upstream sources invnext/Shared/Shared.vcxitems:421-424,480,484-488. Remove the project-wide suppression and apply it only to the source that emits the warning.
vnext/Desktop/React.Windows.Desktop.vcxproj:121 - This suppresses C4715 for every Desktop translation unit, so missing-return defects can compile silently. RNW otherwise scopes this warning per source in
vnext/Shared/Shared.vcxitems:421-424,480,484-488. Remove the project-wide suppression and attach it only to the source that emits the warning.
Vladimir Morozov (vmoroz)
approved these changes
Aug 23, 2026
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Description
@react-native/*dependencies from0.85.0-nightly-20260303-c26dbe286to0.86.0-nightly-20260310-621592d1fSupersedes #16364 with a clean branch based on current
main.Type of Change
Why
Update React Native Windows to the March 10 React Native nightly checkpoint and begin the RN 0.86 integration.
Validation
Microsoft Reviewers: Open in CodeFlow