From a68a8a1f34f47253bff9140b201e36d4b5d4e222 Mon Sep 17 00:00:00 2001
From: Anukrati Agrawal <anuagra@microsoft.com>
Date: Mon, 10 Aug 2026 15:54:23 -0700
Subject: [PATCH 1/2] Integrate RN 0.86.0-nightly-20260310-621592d1f (with
 conflicts)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 package.json                                  |   2 +-
 .../react-native-win32-tester/overrides.json  |   4 +-
 .../react-native-win32-tester/package.json    |   6 +-
 .../src/js/utils/RNTesterList.win32.js        |   5 +
 .../react-native-win32/.flowconfig            |   2 +-
 .../react-native-win32/overrides.json         |  12 +-
 .../react-native-win32/package.json           |  24 +-
 .../AccessibilityInfo.win32.js                |  14 +-
 .../Libraries/Components/View/View.win32.js   | 103 ++++++
 .../NativeComponent/BaseViewConfig.win32.js   |  15 +
 .../Libraries/Network/RCTNetworking.win32.js  |   2 +-
 .../automation-channel/package.json           |   2 +-
 .../@react-native-windows/cli/package.json    |   2 +-
 .../perf-testing/package.json                 |   2 +-
 .../tester/overrides.json                     |  18 +-
 .../@react-native-windows/tester/package.json |   9 +-
 .../Button/ButtonExample.windows.js           |   5 +
 .../ActivityIndicatorExample.windows.js       |   2 +
 .../js/examples/Image/ImageExample.windows.js |  36 ++
 .../Pressable/PressableExample.windows.js     |   4 +
 .../js/examples/Text/TextExample.windows.js   |  72 +++-
 .../Text/TextSharedExamples.windows.js        |  15 +-
 .../Touchable/TouchableExample.windows.js     |   6 +-
 .../src/js/utils/RNTesterList.windows.js      |   5 +
 .../@react-native/monorepo/overrides.json     |   4 +-
 packages/@react-native/monorepo/package.json  |   6 +-
 .../tester/js/utils/RNTesterList.android.js   |   5 +
 .../tester/js/utils/RNTesterList.ios.js       |   4 +
 packages/@react-native/tester/overrides.json  |  30 +-
 packages/@react-native/tester/package.json    |   8 +-
 .../babel-react-native-config/package.json    |   4 +-
 .../@rnw-scripts/eslint-config/package.json   |   2 +-
 .../@rnw-scripts/integrate-rn/package.json    |   4 +-
 .../metro-dev-config/package.json             |   4 +-
 packages/e2e-test-app-fabric/package.json     |   6 +-
 packages/playground/package.json              |   6 +-
 .../react-native-windows-init/package.json    |   2 +-
 packages/sample-app-fabric/package.json       |   6 +-
 packages/sample-custom-component/package.json |   6 +-
 vnext/.flowconfig                             |   2 +-
 .../jsinspector-modern/NetworkIOAgent.cpp     |   2 +-
 .../components/view/TouchEventEmitter.cpp     |  28 +-
 .../components/view/TouchEventEmitter.h       |   1 +
 .../react/renderer/uimanager/UIManager.cpp    |  11 +
 vnext/Scripts/Warm-RnwFeedCache.ps1           |   2 +-
 vnext/Scripts/creaternwapp.cmd                |   2 +-
 vnext/overrides.json                          |  24 +-
 vnext/package.json                            |  26 +-
 .../AccessibilityInfo.windows.js              |  14 +-
 .../Libraries/Components/View/View.windows.js | 121 +++++--
 .../NativeComponent/BaseViewConfig.windows.js |  15 +
 .../ViewConfigIgnore.windows.js               |  15 +
 .../Network/RCTNetworking.windows.js          |   2 +-
 .../ReactNativeFeatureFlagsBase.js            |   6 +-
 yarn.lock                                     | 337 +++++++++---------
 55 files changed, 717 insertions(+), 355 deletions(-)

diff --git a/package.json b/package.json
index 6b4d250a438..47f691bfb16 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "prettier": "^3.6.2",
     "prettier-plugin-hermes-parser": "0.21.1",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-platform-override": "workspace:*",
     "typescript": "5.0.4"
   },
diff --git a/packages/@office-iss/react-native-win32-tester/overrides.json b/packages/@office-iss/react-native-win32-tester/overrides.json
index 9f16f06fdec..d6ff82d7157 100644
--- a/packages/@office-iss/react-native-win32-tester/overrides.json
+++ b/packages/@office-iss/react-native-win32-tester/overrides.json
@@ -5,7 +5,7 @@
   "excludePatterns": [
     "src/js/examples-win32/**"
   ],
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "patch",
@@ -42,7 +42,7 @@
       "type": "derived",
       "file": "src/js/utils/RNTesterList.win32.js",
       "baseFile": "packages/rn-tester/js/utils/RNTesterList.android.js",
-      "baseHash": "d0b6e7eccdc020d76d263b3e88becfb565b4671d"
+      "baseHash": "6c9c1b36ee77323fa1b76235eaab9907ee7c733c"
     }
   ]
 }
\ No newline at end of file
diff --git a/packages/@office-iss/react-native-win32-tester/package.json b/packages/@office-iss/react-native-win32-tester/package.json
index 728eebed4d0..6a771db39b0 100644
--- a/packages/@office-iss/react-native-win32-tester/package.json
+++ b/packages/@office-iss/react-native-win32-tester/package.json
@@ -11,7 +11,7 @@
     "validate-overrides": "react-native-platform-override validate"
   },
   "dependencies": {
-    "@react-native/tester": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/tester": "0.86.0-nightly-20260310-621592d1f",
     "@typescript-eslint/eslint-plugin": "^8.36.0",
     "@typescript-eslint/parser": "^8.36.0",
     "flow-enums-runtime": "^0.0.6"
@@ -19,7 +19,7 @@
   "peerDependencies": {
     "@office-iss/react-native-win32": "^0.0.0-canary.312",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286"
+    "react-native": "0.86.0-nightly-20260310-621592d1f"
   },
   "devDependencies": {
     "@office-iss/react-native-win32": "^0.0.0-canary.312",
@@ -32,7 +32,7 @@
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-platform-override": "0.0.0-canary.1023",
     "typescript": "5.0.4"
   },
diff --git a/packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js b/packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js
index c40b7223a32..aeecc2212f1 100644
--- a/packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js
+++ b/packages/@office-iss/react-native-win32-tester/src/js/utils/RNTesterList.win32.js
@@ -380,6 +380,11 @@ const APIs: Array<RNTesterModuleInfo> = ([
     key: 'LegacyModuleExample',
     module: require('../examples/TurboModule/LegacyModuleExample'),
   },
+  {
+    key: 'TurboCxxModuleExample',
+    category: 'Basic',
+    module: require('../examples/TurboModule/TurboCxxModuleExample'),
+  },
   // Basic check to detect the availability of the IntersectionObserver API.
   // $FlowExpectedError[cannot-resolve-name]
   ...(typeof IntersectionObserver === 'function'
diff --git a/packages/@office-iss/react-native-win32/.flowconfig b/packages/@office-iss/react-native-win32/.flowconfig
index a36f99881da..74aaf4dadec 100644
--- a/packages/@office-iss/react-native-win32/.flowconfig
+++ b/packages/@office-iss/react-native-win32/.flowconfig
@@ -171,4 +171,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.303.0
+^0.304.0
diff --git a/packages/@office-iss/react-native-win32/overrides.json b/packages/@office-iss/react-native-win32/overrides.json
index 5df910d47d1..3310a89e3e7 100644
--- a/packages/@office-iss/react-native-win32/overrides.json
+++ b/packages/@office-iss/react-native-win32/overrides.json
@@ -7,13 +7,13 @@
     "**/__snapshots__/**",
     "src-win/rntypes/**"
   ],
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "derived",
       "file": ".flowconfig",
       "baseFile": ".flowconfig",
-      "baseHash": "56a63445d9d20e6c25fea831d9d0d41b9c5b6463"
+      "baseHash": "007a05886f74a088134c955545ce174d75d8178a"
     },
     {
       "type": "derived",
@@ -47,7 +47,7 @@
       "type": "derived",
       "file": "src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/AccessibilityInfo/AccessibilityInfo.js",
-      "baseHash": "ee6f102be5d4b456d16900499a01abd0ca1ce1ba"
+      "baseHash": "decdc9e7b2af21254c017402ca81b45dbec5018f"
     },
     {
       "type": "copy",
@@ -177,7 +177,7 @@
       "type": "patch",
       "file": "src-win/Libraries/Components/View/View.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/View/View.js",
-      "baseHash": "60eab5df574b43200494005fc3f00d11576d515b"
+      "baseHash": "194eebd6a94c61218461d08ef879e852e8503883"
     },
     {
       "type": "derived",
@@ -329,13 +329,13 @@
       "type": "derived",
       "file": "src-win/Libraries/NativeComponent/BaseViewConfig.win32.js",
       "baseFile": "packages/react-native/Libraries/NativeComponent/BaseViewConfig.ios.js",
-      "baseHash": "5b9617aa1bedd5c70b30dac1f3b35aa535976b54"
+      "baseHash": "0e417b1f78fd687a14b84df695eb02e434db4262"
     },
     {
       "type": "copy",
       "file": "src-win/Libraries/Network/RCTNetworking.win32.js",
       "baseFile": "packages/react-native/Libraries/Network/RCTNetworking.ios.js",
-      "baseHash": "475b803e357811f6989d8d116bb040cfb1735b7c",
+      "baseHash": "0044e93421915bb8da461a5660141ae69dff17c7",
       "issue": 4318
     },
     {
diff --git a/packages/@office-iss/react-native-win32/package.json b/packages/@office-iss/react-native-win32/package.json
index b97e85d845b..291cbcd47ee 100644
--- a/packages/@office-iss/react-native-win32/package.json
+++ b/packages/@office-iss/react-native-win32/package.json
@@ -30,14 +30,14 @@
     "@react-native-community/cli-platform-android": "20.0.0",
     "@react-native-community/cli-platform-ios": "20.0.0",
     "@react-native/assets": "1.0.0",
-    "@react-native/assets-registry": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/codegen": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/community-cli-plugin": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/gradle-plugin": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/js-polyfills": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/normalize-colors": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/virtualized-lists": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/assets-registry": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/codegen": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/community-cli-plugin": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/gradle-plugin": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/js-polyfills": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/normalize-colors": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/virtualized-lists": "0.86.0-nightly-20260310-621592d1f",
     "abort-controller": "^3.0.0",
     "anser": "^1.4.9",
     "ansi-regex": "^5.0.0",
@@ -76,7 +76,7 @@
     "@babel/core": "^7.25.2",
     "@babel/eslint-parser": "^7.25.1",
     "@babel/preset-env": "^7.25.3",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
     "@rnw-scripts/jest-out-of-tree-snapshot-resolver": "^1.1.42",
@@ -93,15 +93,15 @@
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-platform-override": "0.0.0-canary.1023",
     "typescript": "5.0.4"
   },
   "peerDependencies": {
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@types/react": "^19.1.1",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286"
+    "react-native": "0.86.0-nightly-20260310-621592d1f"
   },
   "beachball": {
     "defaultNpmTag": "canary",
diff --git a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js
index 7404dacc8a5..9acfd19a7d6 100644
--- a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js
+++ b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.win32.js
@@ -287,10 +287,10 @@ const AccessibilityInfo = {
    * See https://reactnative.dev/docs/accessibilityinfo#prefersCrossFadeTransitions
    */
   prefersCrossFadeTransitions(): Promise<boolean> {
-    return new Promise((resolve, reject) => {
-      if (Platform.OS === 'android') {
-        return Promise.resolve(false);
-      } else {
+    if (Platform.OS === 'android') {
+      return Promise.resolve(false);
+    } else {
+      return new Promise((resolve, reject) => {
         if (
           NativeAccessibilityManagerIOS?.getCurrentPrefersCrossFadeTransitionsState !=
           null
@@ -306,8 +306,8 @@ const AccessibilityInfo = {
             ),
           );
         }
-      }
-    });
+      });
+    }
   },
 
   /**
@@ -448,7 +448,7 @@ const AccessibilityInfo = {
    *
    * See https://reactnative.dev/docs/accessibilityinfo#addeventlistener
    */
-  addEventListener<K: keyof AccessibilityEventDefinitions>(
+  addEventListener<K extends keyof AccessibilityEventDefinitions>(
     eventName: K,
     // $FlowFixMe[incompatible-type] - Flow bug with unions and generics (T128099423)
     handler: (...AccessibilityEventDefinitions[K]) => void,
diff --git a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
index d881641e46d..914ac81a422 100644
--- a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
+++ b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
@@ -10,7 +10,12 @@
 
 import type {ViewProps} from './ViewPropTypes';
 
+<<<<<<< Upstream
+import * as ReactNativeFeatureFlags from '../../../src/private/featureflags/ReactNativeFeatureFlags';
+import TextAncestorContext from '../../Text/TextAncestorContext';
+=======
 import TextAncestor from '../../Text/TextAncestor';
+>>>>>>> Override
 import ViewNativeComponent from './ViewNativeComponent';
 import * as React from 'react';
 import invariant from 'invariant'; // [Windows]
@@ -76,6 +81,103 @@ const View: component(
     const _accessibilityLabelledBy =
       ariaLabelledBy?.split(/\s*,\s*/g) ?? accessibilityLabelledBy;
 
+<<<<<<< Upstream
+  let resolvedProps = props;
+  if (!ReactNativeFeatureFlags.enableNativeViewPropTransformations()) {
+    const {
+      accessibilityState,
+      accessibilityValue,
+      'aria-busy': ariaBusy,
+      'aria-checked': ariaChecked,
+      'aria-disabled': ariaDisabled,
+      'aria-expanded': ariaExpanded,
+      'aria-hidden': ariaHidden,
+      'aria-label': ariaLabel,
+      'aria-labelledby': ariaLabelledBy,
+      'aria-live': ariaLive,
+      'aria-selected': ariaSelected,
+      'aria-valuemax': ariaValueMax,
+      'aria-valuemin': ariaValueMin,
+      'aria-valuenow': ariaValueNow,
+      'aria-valuetext': ariaValueText,
+      id,
+      tabIndex,
+      ...otherProps
+    } = props;
+
+    const processedProps = otherProps as {...ViewProps};
+
+    const parsedAriaLabelledBy = ariaLabelledBy?.split(/\s*,\s*/g);
+    if (parsedAriaLabelledBy !== undefined) {
+      processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
+    }
+
+    if (ariaLabel !== undefined) {
+      processedProps.accessibilityLabel = ariaLabel;
+    }
+
+    if (ariaLive !== undefined) {
+      processedProps.accessibilityLiveRegion =
+        ariaLive === 'off' ? 'none' : ariaLive;
+    }
+
+    if (ariaHidden !== undefined) {
+      processedProps.accessibilityElementsHidden = ariaHidden;
+      if (ariaHidden === true) {
+        processedProps.importantForAccessibility = 'no-hide-descendants';
+      }
+    }
+
+    if (id !== undefined) {
+      processedProps.nativeID = id;
+    }
+
+    if (tabIndex !== undefined) {
+      processedProps.focusable = !tabIndex;
+    }
+
+    if (
+      accessibilityState != null ||
+      ariaBusy != null ||
+      ariaChecked != null ||
+      ariaDisabled != null ||
+      ariaExpanded != null ||
+      ariaSelected != null
+    ) {
+      processedProps.accessibilityState = {
+        busy: ariaBusy ?? accessibilityState?.busy,
+        checked: ariaChecked ?? accessibilityState?.checked,
+        disabled: ariaDisabled ?? accessibilityState?.disabled,
+        expanded: ariaExpanded ?? accessibilityState?.expanded,
+        selected: ariaSelected ?? accessibilityState?.selected,
+      };
+    }
+
+    if (
+      accessibilityValue != null ||
+      ariaValueMax != null ||
+      ariaValueMin != null ||
+      ariaValueNow != null ||
+      ariaValueText != null
+    ) {
+      processedProps.accessibilityValue = {
+        max: ariaValueMax ?? accessibilityValue?.max,
+        min: ariaValueMin ?? accessibilityValue?.min,
+        now: ariaValueNow ?? accessibilityValue?.now,
+        text: ariaValueText ?? accessibilityValue?.text,
+      };
+    }
+
+    resolvedProps = processedProps;
+  }
+
+  const actualView =
+    ref == null ? (
+      <ViewNativeComponent {...resolvedProps} />
+    ) : (
+      <ViewNativeComponent {...resolvedProps} ref={ref} />
+    );
+=======
     const _accessibilityState =
       accessibilityState != null ||
       ariaBusy != null ||
@@ -214,6 +316,7 @@ const View: component(
       });
     };
     // Windows]
+>>>>>>> Override
 
     return (
       // [Windows
diff --git a/packages/@office-iss/react-native-win32/src-win/Libraries/NativeComponent/BaseViewConfig.win32.js b/packages/@office-iss/react-native-win32/src-win/Libraries/NativeComponent/BaseViewConfig.win32.js
index 9da3aaa9226..8af7da5e5cd 100644
--- a/packages/@office-iss/react-native-win32/src-win/Libraries/NativeComponent/BaseViewConfig.win32.js
+++ b/packages/@office-iss/react-native-win32/src-win/Libraries/NativeComponent/BaseViewConfig.win32.js
@@ -216,7 +216,22 @@ const validAttributesForNonEventProps = {
   transformOrigin: true,
   accessibilityRole: true,
   accessibilityState: true,
+  'aria-busy': true,
+  'aria-checked': true,
+  'aria-disabled': true,
+  'aria-expanded': true,
+  'aria-hidden': true,
+  'aria-label': true,
+  'aria-labelledby': true,
+  'aria-live': true,
+  'aria-selected': true,
+  'aria-valuemax': true,
+  'aria-valuemin': true,
+  'aria-valuenow': true,
+  'aria-valuetext': true,
+  tabIndex: true,
   nativeID: true,
+  id: true,
   pointerEvents: true,
   removeClippedSubviews: true,
   role: true,
diff --git a/packages/@office-iss/react-native-win32/src-win/Libraries/Network/RCTNetworking.win32.js b/packages/@office-iss/react-native-win32/src-win/Libraries/Network/RCTNetworking.win32.js
index ec4720f9f46..a97c96dec1f 100644
--- a/packages/@office-iss/react-native-win32/src-win/Libraries/Network/RCTNetworking.win32.js
+++ b/packages/@office-iss/react-native-win32/src-win/Libraries/Network/RCTNetworking.win32.js
@@ -18,7 +18,7 @@ import {type RCTNetworkingEventDefinitions} from './RCTNetworkingEventDefinition
 import {type NativeResponseType} from './XMLHttpRequest';
 
 const RCTNetworking = {
-  addListener<K: keyof RCTNetworkingEventDefinitions>(
+  addListener<K extends keyof RCTNetworkingEventDefinitions>(
     eventType: K,
     listener: (...RCTNetworkingEventDefinitions[K]) => unknown,
     context?: unknown,
diff --git a/packages/@react-native-windows/automation-channel/package.json b/packages/@react-native-windows/automation-channel/package.json
index ee4260c9f06..7a09ec5e264 100644
--- a/packages/@react-native-windows/automation-channel/package.json
+++ b/packages/@react-native-windows/automation-channel/package.json
@@ -33,7 +33,7 @@
     "just-scripts": "^1.3.2",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058",
     "typescript": "5.0.4"
   },
diff --git a/packages/@react-native-windows/cli/package.json b/packages/@react-native-windows/cli/package.json
index 832c25e6373..011efc8c7df 100644
--- a/packages/@react-native-windows/cli/package.json
+++ b/packages/@react-native-windows/cli/package.json
@@ -66,7 +66,7 @@
     "jest": "^29.7.0",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "typescript": "5.0.4"
   },
   "peerDependencies": {
diff --git a/packages/@react-native-windows/perf-testing/package.json b/packages/@react-native-windows/perf-testing/package.json
index daec3e760ba..118a842f6a3 100644
--- a/packages/@react-native-windows/perf-testing/package.json
+++ b/packages/@react-native-windows/perf-testing/package.json
@@ -36,7 +36,7 @@
   "peerDependencies": {
     "jest": ">=29.0.3",
     "react": ">=18.0.0",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-test-renderer": ">=18.0.0"
   },
   "peerDependenciesMeta": {
diff --git a/packages/@react-native-windows/tester/overrides.json b/packages/@react-native-windows/tester/overrides.json
index d977e1b8ed8..a8308afb90c 100644
--- a/packages/@react-native-windows/tester/overrides.json
+++ b/packages/@react-native-windows/tester/overrides.json
@@ -5,7 +5,7 @@
   "excludePatterns": [
     "src/js/examples-win/**"
   ],
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "copy",
@@ -24,7 +24,7 @@
       "type": "derived",
       "file": "src/js/examples-win/Button/ButtonExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Button/ButtonExample.js",
-      "baseHash": "e50ed3ad268f9a4d34cbb720650c53fad379e0fe"
+      "baseHash": "69d270a73a83ff51ba78d174600e50edd1fe2c42"
     },
     {
       "type": "derived",
@@ -36,7 +36,7 @@
       "type": "patch",
       "file": "src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js",
-      "baseHash": "f8ef473352cc6bc67ef28df8eb1889d394d8e481",
+      "baseHash": "35832d0f01bfc434ce7ebadb4aeb6b6a4b21cc64",
       "issue": 12869
     },
     {
@@ -85,7 +85,7 @@
       "type": "patch",
       "file": "src/js/examples/Image/ImageExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Image/ImageExample.js",
-      "baseHash": "b119f46dbe33a567e7649f7197874d5b066403aa",
+      "baseHash": "885ebdd53ac7f33e1fd4d81b4d41de15e530ebe9",
       "issue": 12869
     },
     {
@@ -104,20 +104,20 @@
       "type": "patch",
       "file": "src/js/examples/Pressable/PressableExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Pressable/PressableExample.js",
-      "baseHash": "93996033b79921b0572adbbbe84d2422cf8f6ea7",
+      "baseHash": "e80fa7c12100c3744d39be075d3a09d5ac2466af",
       "issue": 6240
     },
     {
       "type": "derived",
       "file": "src/js/examples/Text/TextExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Text/TextExample.android.js",
-      "baseHash": "ea9a9fec30ff987396c4be119eb4b38492a37e65"
+      "baseHash": "f69c13423c37eb7de8864b9c846249dce4e77d29"
     },
     {
       "type": "patch",
       "file": "src/js/examples/Text/TextSharedExamples.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Text/TextSharedExamples.js",
-      "baseHash": "66789820f73a9ea8f6044df08cef5726112cc8cd",
+      "baseHash": "b8ab41b7cf494708eebce6c6227fe066f247f2ce",
       "issue": 15125
     },
     {
@@ -131,7 +131,7 @@
       "type": "derived",
       "file": "src/js/examples/Touchable/TouchableExample.windows.js",
       "baseFile": "packages/rn-tester/js/examples/Touchable/TouchableExample.js",
-      "baseHash": "03b4d8b4c97e998cf488bfc889dcdc047378c306"
+      "baseHash": "d56cdb355fd6edfcec3ce22eef7ef50223f709ff"
     },
     {
       "type": "patch",
@@ -156,7 +156,7 @@
       "type": "derived",
       "file": "src/js/utils/RNTesterList.windows.js",
       "baseFile": "packages/rn-tester/js/utils/RNTesterList.android.js",
-      "baseHash": "d0b6e7eccdc020d76d263b3e88becfb565b4671d"
+      "baseHash": "6c9c1b36ee77323fa1b76235eaab9907ee7c733c"
     }
   ]
 }
\ No newline at end of file
diff --git a/packages/@react-native-windows/tester/package.json b/packages/@react-native-windows/tester/package.json
index 44308f712bb..3db2ed04eae 100644
--- a/packages/@react-native-windows/tester/package.json
+++ b/packages/@react-native-windows/tester/package.json
@@ -19,7 +19,7 @@
   "peerDependencies": {
     "@react-native-picker/picker": "2.11.0",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058",
     "react-native-xaml": "^0.0.80"
   },
@@ -32,8 +32,9 @@
     }
   },
   "devDependencies": {
-    "@react-native/new-app-screen": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/tester": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native-picker/picker": "2.11.0",
+    "@react-native/new-app-screen": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/tester": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
     "@rnw-scripts/just-task": "2.3.58",
@@ -43,7 +44,7 @@
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-platform-override": "0.0.0-canary.1023",
     "react-native-windows": "^0.0.0-canary.1058",
     "typescript": "5.0.4"
diff --git a/packages/@react-native-windows/tester/src/js/examples-win/Button/ButtonExample.windows.js b/packages/@react-native-windows/tester/src/js/examples-win/Button/ButtonExample.windows.js
index 7df0f59288c..e2757c7e9ac 100644
--- a/packages/@react-native-windows/tester/src/js/examples-win/Button/ButtonExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples-win/Button/ButtonExample.windows.js
@@ -30,6 +30,7 @@ exports.description = 'Simple React Native button component.';
 exports.examples = [
   {
     title: 'Button with default styling',
+    name: 'default-styling',
     render: function (): React.Node {
       return (
         <Button
@@ -43,6 +44,7 @@ exports.examples = [
   },
   {
     title: 'Button with color="red"',
+    name: 'color-red',
     description:
       ('Note: On iOS, the color prop controls the color of the text. On ' +
         'Android, the color adjusts the background color of the button.': string),
@@ -66,6 +68,7 @@ exports.examples = [
   },
   {
     title: 'Two Buttons with Flexbox layout',
+    name: 'two-buttons-flexbox',
     description:
       ('Two buttons wrapped inside view with justifyContent: spaceBetween,' +
         'This layout strategy lets the title define the width of the button': string),
@@ -102,6 +105,7 @@ exports.examples = [
   },
   {
     title: 'Three Buttons with Flexbox layout',
+    name: 'three-buttons-flexbox',
     render: function (): React.Node {
       return (
         <RNTesterThemeContext.Consumer>
@@ -141,6 +145,7 @@ exports.examples = [
   },
   {
     title: 'Button with disabled={true}',
+    name: 'disabled',
     description:
       'By passing disabled={true} all interactions for the button are disabled.',
     render: function (): React.Node {
diff --git a/packages/@react-native-windows/tester/src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js
index 0ea26ffb58a..649a19990b8 100644
--- a/packages/@react-native-windows/tester/src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/ActivityIndicator/ActivityIndicatorExample.windows.js
@@ -71,6 +71,7 @@ exports.description = 'Animated loading indicators.';
 exports.examples = [
   {
     title: 'Default (small, white)',
+    name: 'default',
     render(): Node {
       return (
         <ActivityIndicator
@@ -103,6 +104,7 @@ exports.examples = [
   },
   {
     title: 'Custom colors',
+    name: 'custom-colors',
     render(): Node {
       return (
         <View style={styles.horizontal} testID="activity-color" accessible>
diff --git a/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
index 7d8ec167e3e..a78e7ddec99 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
@@ -1210,12 +1210,17 @@ exports.examples = [
   },
   {
     title: 'Plain Static Image',
+    name: 'static-image',
     description:
       ('Static assets should be placed in the source code tree, and ' +
         'required in the same way as JavaScript modules.': string),
     render: function (): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="image-static" style={styles.horizontal}>
+=======
         <View style={styles.horizontal} testID="image-static" accessible>
+>>>>>>> Override
           <Image
             source={require('../../assets/uie_thumb_normal.png')}
             style={styles.icon}
@@ -1499,9 +1504,14 @@ exports.examples = [
   },
   {
     title: 'Opacity',
+    name: 'opacity',
     render: function (): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="image-opacity" style={styles.horizontal}>
+=======
         <View style={styles.horizontal} testID="image-opacity" accessible>
+>>>>>>> Override
           <Image style={[styles.base, styles.opacity1]} source={fullImage} />
           <Image style={[styles.base, styles.opacity2]} source={fullImage} />
           <Image style={[styles.base, styles.opacity3]} source={fullImage} />
@@ -1514,9 +1524,14 @@ exports.examples = [
   },
   {
     title: 'Nesting content inside <Image> component',
+    name: 'nesting-content',
     render: function (): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="image-nesting-content" style={styles.base}>
+=======
         <View style={styles.base} testID="image-nested" accessible>
+>>>>>>> Override
           <Image style={{...StyleSheet.absoluteFill}} source={fullImage} />
           <Text style={styles.nestedText}>React</Text>
         </View>
@@ -1525,9 +1540,11 @@ exports.examples = [
   },
   {
     title: 'Nesting content inside <ImageBackground> component',
+    name: 'nesting-image-background',
     render: function (): React.Node {
       return (
         <ImageBackground
+          testID="image-nesting-background"
           style={styles.transparentImageBackground}
           source={fullImage}>
           <Text style={styles.nestedText}>React</Text>
@@ -1537,11 +1554,16 @@ exports.examples = [
   },
   {
     title: 'Tint Color',
+    name: 'tint-color',
     description: ('The `tintColor` prop changes all the non-alpha ' +
       'pixels to the tint color.': string),
     render: function (): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="image-tint-color">
+=======
         <View testID="image-tint-color" accessible>
+>>>>>>> Override
           <View style={styles.horizontal}>
             <Image
               source={require('../../assets/uie_thumb_normal.png')}
@@ -1840,9 +1862,11 @@ exports.examples = [
   },
   {
     title: 'Animated GIF',
+    name: 'animated-gif',
     render: function (): React.Node {
       return (
         <Image
+          testID="image-animated-gif"
           style={styles.gif}
           source={require('../../assets/tumblr_mfqekpMktw1rn90umo1_500.gif')}
           testID="image-animated-gif"
@@ -1854,9 +1878,15 @@ exports.examples = [
   },
   {
     title: 'Base64 image',
+    name: 'base64-image',
     render: function (): React.Node {
       return (
         <Image
+<<<<<<< Upstream
+          testID="image-base64"
+          style={styles.base64}
+          source={{uri: base64Icon, scale: 3}}
+=======
           style={styles.base64}
           source={{uri: base64Icon, scale: 3}}
           testID="image-base64"
@@ -1874,6 +1904,7 @@ exports.examples = [
           source={{uri: dataImageSvg, width: 48, height: 48}}
           testID="image-datasvg"
           accessible
+>>>>>>> Override
         />
       );
     },
@@ -1953,9 +1984,14 @@ exports.examples = [
   },
   {
     title: 'Blur Radius',
+    name: 'blur-radius',
     render: function (): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="image-blur-radius" style={styles.horizontal}>
+=======
         <View style={styles.horizontal} testID="image-blur-radius" accessible>
+>>>>>>> Override
           <Image style={styles.base} source={fullImage} blurRadius={0} />
           <Image style={styles.base} source={fullImage} blurRadius={5} />
           <Image style={styles.base} source={fullImage} blurRadius={10} />
diff --git a/packages/@react-native-windows/tester/src/js/examples/Pressable/PressableExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Pressable/PressableExample.windows.js
index 1a9825c2c6c..94dc652d55a 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Pressable/PressableExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Pressable/PressableExample.windows.js
@@ -531,6 +531,7 @@ const styles = StyleSheet.create({
 const examples = [
   {
     title: 'Change content based on Press',
+    name: 'content-press',
     render(): React.Node {
       return <ContentPress />;
     },
@@ -583,6 +584,7 @@ const examples = [
   },
   {
     title: 'Pressable feedback events',
+    name: 'feedback-events',
     description: ('<Pressable> components accept onPress, onPressIn, ' +
       'onPressOut, and onLongPress as props.': string),
     render: function (): React.Node {
@@ -696,6 +698,7 @@ const examples = [
   },
   {
     title: '<Text onPress={fn}> with highlight',
+    name: 'text-press',
     render: function (): React.Node {
       return <TextOnPressBox />;
     },
@@ -720,6 +723,7 @@ const examples = [
   },
   {
     title: 'Pressable Hit Slop',
+    name: 'hit-slop',
     description:
       ('<Pressable> components accept hitSlop prop which extends the touch area ' +
         'without changing the view bounds.': string),
diff --git a/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
index 464a9a165c7..9cda0055f61 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
@@ -365,7 +365,11 @@ function IncludeFontPaddingExample(props: {}): React.Node {
 
 function FontVariantsExample(props: {}): React.Node {
   return (
+<<<<<<< Upstream
+    <View testID="text-font-variants">
+=======
     <View testID={'font-variants'}>
+>>>>>>> Override
       <RNTesterText style={{fontVariant: ['small-caps']}}>
         Small Caps{'\n'}
       </RNTesterText>
@@ -409,7 +413,7 @@ function FontVariantsExample(props: {}): React.Node {
 
 function EllipsizeModeExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-ellipsize-mode">
       <RNTesterText numberOfLines={1} style={styles.wrappedText}>
         This very long text should be truncated with dots in the end.
       </RNTesterText>
@@ -431,13 +435,13 @@ function EllipsizeModeExample(props: {}): React.Node {
         style={styles.wrappedText}>
         This very long text should be clipped and this will not be visible.
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function FontFamilyExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-font-family">
       <RNTesterText style={{fontFamily: 'sans-serif'}}>Sans-Serif</RNTesterText>
       <RNTesterText
         style={{fontFamily: 'sans-serif', fontWeight: 'bold'}}
@@ -455,13 +459,13 @@ function FontFamilyExample(props: {}): React.Node {
       <RNTesterText style={{fontFamily: 'Unknown Font Family'}}>
         Unknown Font Family
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function TextShadowExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-text-shadow">
       <RNTesterText
         style={{
           fontSize: 20,
@@ -472,7 +476,7 @@ function TextShadowExample(props: {}): React.Node {
         testID={'text-shadow'}>
         Demo text shadow
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
@@ -597,7 +601,7 @@ function HyphenationExample(props: {}): React.Node {
 
 function FontWeightExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-font-weight">
       <RNTesterText style={{fontWeight: 'bold'}}>
         Move fast and be bold
       </RNTesterText>
@@ -622,13 +626,17 @@ function FontWeightExample(props: {}): React.Node {
       <RNTesterText style={{fontWeight: 300}}>FONT WEIGHT 300</RNTesterText>
       <RNTesterText style={{fontWeight: 200}}>FONT WEIGHT 200</RNTesterText>
       <RNTesterText style={{fontWeight: 100}}>FONT WEIGHT 100</RNTesterText>
-    </>
+    </View>
   );
 }
 
 function BackgroundColorExample(props: {}): React.Node {
   return (
+<<<<<<< Upstream
+    <View testID="text-bg-color-attr">
+=======
     <View testID={'text-background-color'}>
+>>>>>>> Override
       <RNTesterText style={{backgroundColor: '#ffaaaa'}}>
         Red background,
         <RNTesterText style={{backgroundColor: '#aaaaff'}}>
@@ -680,10 +688,15 @@ function ContainerBackgroundColorExample(props: {}): React.Node {
 
 function TextDecorationExample(props: {}): React.Node {
   return (
+<<<<<<< Upstream
+    <View testID="text-text-decoration">
+      <RNTesterText style={{textDecorationLine: 'underline'}}>
+=======
     <>
       <RNTesterText
         style={{textDecorationLine: 'underline'}}
         testID={'text-decoration-underline'}>
+>>>>>>> Override
         Solid underline
       </RNTesterText>
       <RNTesterText style={{textDecorationLine: 'none'}}>
@@ -711,16 +724,21 @@ function TextDecorationExample(props: {}): React.Node {
         </RNTesterText>{' '}
         text nodes
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function NestedExample(props: {}): React.Node {
   return (
+<<<<<<< Upstream
+    <View testID="text-test-nested">
+      <RNTesterText onPress={() => console.log('1st')}>
+=======
     <>
       <RNTesterText
         onPress={() => console.log('1st')}
         testID={'text-outer-color'}>
+>>>>>>> Override
         (Normal text,
         <Text style={{color: 'red', fontWeight: 'bold'}}>
           (R)red
@@ -821,7 +839,7 @@ function NestedExample(props: {}): React.Node {
         </RNTesterText>
         )
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
@@ -1084,7 +1102,11 @@ function LineHeightExample(props: {}): React.Node {
 function LetterSpacingExample(props: {}): React.Node {
   return (
     <>
+<<<<<<< Upstream
+      <View testID="text-letter-spacing">
+=======
       <View testID={'text-letter-spacing'}>
+>>>>>>> Override
         <RNTesterText style={{letterSpacing: 0}}>
           letterSpacing = 0
         </RNTesterText>
@@ -1507,7 +1529,11 @@ const examples = [
     name: 'wrap',
     render(): React.Node {
       return (
+<<<<<<< Upstream
+        <RNTesterText testID="text-wrap" style={styles.wrappedText}>
+=======
         <RNTesterText style={styles.wrappedText} testID={'text-wrap'}>
+>>>>>>> Override
           The text should wrap if it goes on multiple lines. See, this is going
           to the next line.
         </RNTesterText>
@@ -1526,7 +1552,11 @@ const examples = [
     name: 'padding',
     render(): React.Node {
       return (
+<<<<<<< Upstream
+        <RNTesterText testID="text-padding" style={{padding: 10}}>
+=======
         <RNTesterText style={{padding: 10}} testID={'text-padding'}>
+>>>>>>> Override
           This text is indented by 10px padding on all sides.
         </RNTesterText>
       );
@@ -1565,12 +1595,17 @@ const examples = [
     name: 'fontSize',
     render(): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="text-font-size">
+          <RNTesterText style={{fontSize: 23}}>Size 23</RNTesterText>
+=======
         <>
           <RNTesterText style={{fontSize: 23}} testID={'text-size'}>
             Size 23
           </RNTesterText>
+>>>>>>> Override
           <RNTesterText style={{fontSize: 8}}>Size 8</RNTesterText>
-        </>
+        </View>
       );
     },
   },
@@ -1579,12 +1614,17 @@ const examples = [
     name: 'color',
     render(): React.Node {
       return (
+<<<<<<< Upstream
+        <View testID="text-test-color">
+          <Text style={{color: 'red'}}>Red color</Text>
+=======
         <>
           <Text style={{color: 'red'}} testID={'text-color'}>
             Red color
           </Text>
+>>>>>>> Override
           <Text style={{color: 'blue'}}>Blue color</Text>
-        </>
+        </View>
       );
     },
   },
@@ -1600,7 +1640,7 @@ const examples = [
     name: 'fontStyle',
     render(): React.Node {
       return (
-        <>
+        <View testID="text-font-style">
           <RNTesterText style={{fontStyle: 'italic'}}>
             Move fast and be italic
           </RNTesterText>
@@ -1611,7 +1651,7 @@ const examples = [
             Move fast and be italic, but just be longer so that you don't fit on
             a single line and make sure text is not truncated.
           </RNTesterText>
-        </>
+        </View>
       );
     },
   },
@@ -1659,7 +1699,7 @@ const examples = [
     name: 'spaces',
     render(): React.Node {
       return (
-        <RNTesterText>
+        <RNTesterText testID="text-spaces">
           A {'generated'} {'string'} and some &nbsp;&nbsp;&nbsp; spaces
         </RNTesterText>
       );
@@ -1686,7 +1726,7 @@ const examples = [
   },
   {
     title: 'backgroundColor attribute',
-    name: 'backgroundColorAttribute',
+    name: 'backgroundColorAttr',
     render(): React.Node {
       return <BackgroundColorExample />;
     },
diff --git a/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js b/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
index be25dedad5b..96adf343561 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
@@ -197,12 +197,23 @@ function RtlAndInlineViewsExample(): React.Node {
   );
 }
 
+<<<<<<< Upstream
+component TextWithLinkRoleExample() {
+  const [pressed, setPressed] = useState(false);
+  const handlePress = () => setPressed(true);
+  const linkColor = pressed ? 'red' : 'teal';
+=======
 function TextWithLinkRoleExample(): React.Node {
   const handlePress = () => console.log('Link Press');
+>>>>>>> Override
 
   return (
-    <View>
-      <Text role="link" style={styles.link} onPress={handlePress}>
+    <View testID="text-with-link-role">
+      <Text
+        role="link"
+        style={[styles.link, {color: linkColor}]}
+        onPress={handlePress}
+        testID="text-link-role-link">
         Link Text
       </Text>
 
diff --git a/packages/@react-native-windows/tester/src/js/examples/Touchable/TouchableExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Touchable/TouchableExample.windows.js
index 677a287cd66..e9dc9230f7f 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Touchable/TouchableExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Touchable/TouchableExample.windows.js
@@ -312,7 +312,7 @@ class TouchableHitSlop extends React.Component<{...}, $FlowFixMe> {
 }
 
 function TouchableNativeMethodChecker<
-  T: component(ref?: React.RefSetter<any>, ...any),
+  T extends component(ref?: React.RefSetter<any>, ...any),
 >(props: {Component: T, name: string}): React.Node {
   const [status, setStatus] = useState<?boolean>(null);
   const ref = useRef<any>(null);
@@ -723,6 +723,7 @@ exports.documentationURL = 'https://reactnative.dev/docs/touchablehighlight';
 exports.examples = [
   {
     title: '<TouchableHighlight>',
+    name: 'highlight',
     description: ('TouchableHighlight works by adding an extra view with a ' +
       'black background under the single child view.  This works best when the ' +
       'child view is fully opaque, although it can be made to work as a simple ' +
@@ -734,6 +735,7 @@ exports.examples = [
   },
   {
     title: '<TouchableWithoutFeedback>',
+    name: 'without-feedback',
     render(): React.Node {
       return <TouchableWithoutFeedbackBox />;
     },
@@ -793,6 +795,7 @@ exports.examples = [
   },
   {
     title: 'Touchable feedback events',
+    name: 'feedback-events',
     description: ('<Touchable*> components accept onPress, onPressIn, ' +
       'onPressOut, and onLongPress as props.': string),
     render(): React.MixedElement {
@@ -819,6 +822,7 @@ exports.examples = [
   },
   {
     title: 'Touchable Hit Slop',
+    name: 'hit-slop',
     description:
       ('<Touchable*> components accept hitSlop prop which extends the touch area ' +
         'without changing the view bounds.': string),
diff --git a/packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js b/packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js
index 0ee902c6dd5..7be5fd18342 100644
--- a/packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js
+++ b/packages/@react-native-windows/tester/src/js/utils/RNTesterList.windows.js
@@ -487,6 +487,11 @@ const APIs: Array<RNTesterModuleInfo> = ([
     key: 'LegacyModuleExample',
     module: require('../examples/TurboModule/LegacyModuleExample'),
   },
+  {
+    key: 'TurboCxxModuleExample',
+    category: 'Basic',
+    module: require('../examples/TurboModule/TurboCxxModuleExample'),
+  },
   // Basic check to detect the availability of the IntersectionObserver API.
   // $FlowExpectedError[cannot-resolve-name]
   ...(typeof IntersectionObserver === 'function'
diff --git a/packages/@react-native/monorepo/overrides.json b/packages/@react-native/monorepo/overrides.json
index 9c5967f171a..be725a77593 100644
--- a/packages/@react-native/monorepo/overrides.json
+++ b/packages/@react-native/monorepo/overrides.json
@@ -1,11 +1,11 @@
 {
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "patch",
       "file": "package.json",
       "baseFile": "package.json",
-      "baseHash": "3f4549686b17952959594cb5d1d8f37b7cebafe2"
+      "baseHash": "9a8503f6ee17fe1be12a151fb15d027064c41bf8"
     }
   ]
 }
\ No newline at end of file
diff --git a/packages/@react-native/monorepo/package.json b/packages/@react-native/monorepo/package.json
index 8002bb0d63c..5c116720848 100644
--- a/packages/@react-native/monorepo/package.json
+++ b/packages/@react-native/monorepo/package.json
@@ -51,8 +51,8 @@
     "@jest/create-cache-key-function": "^29.7.0",
     "@microsoft/api-extractor": "^7.52.2",
     "@octokit/rest": "^22.0.0",
-    "@react-native/metro-babel-transformer": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-babel-transformer": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@tsconfig/node22": "22.0.2",
     "@types/react": "^19.2.3",
     "@typescript-eslint/parser": "^8.36.0",
@@ -79,7 +79,7 @@
     "eslint-plugin-relay": "^1.8.3",
     "fb-dotslash": "0.5.8",
     "flow-api-translator": "0.33.3",
-    "flow-bin": "^0.303.0",
+    "flow-bin": "^0.304.0",
     "hermes-eslint": "0.33.3",
     "hermes-transform": "0.33.3",
     "ini": "^5.0.0",
diff --git a/packages/@react-native/tester/js/utils/RNTesterList.android.js b/packages/@react-native/tester/js/utils/RNTesterList.android.js
index c0abd94423f..be56f596a0d 100644
--- a/packages/@react-native/tester/js/utils/RNTesterList.android.js
+++ b/packages/@react-native/tester/js/utils/RNTesterList.android.js
@@ -374,6 +374,11 @@ const APIs: Array<RNTesterModuleInfo> = ([
     key: 'LegacyModuleExample',
     module: require('../examples/TurboModule/LegacyModuleExample'),
   },
+  {
+    key: 'TurboCxxModuleExample',
+    category: 'Basic',
+    module: require('../examples/TurboModule/TurboCxxModuleExample'),
+  },
   // Basic check to detect the availability of the IntersectionObserver API.
   // $FlowExpectedError[cannot-resolve-name]
   ...(typeof IntersectionObserver === 'function'
diff --git a/packages/@react-native/tester/js/utils/RNTesterList.ios.js b/packages/@react-native/tester/js/utils/RNTesterList.ios.js
index b69af517a43..afe569acd4f 100644
--- a/packages/@react-native/tester/js/utils/RNTesterList.ios.js
+++ b/packages/@react-native/tester/js/utils/RNTesterList.ios.js
@@ -331,6 +331,10 @@ const APIs: Array<RNTesterModuleInfo> = ([
     key: 'LegacyModuleExample',
     module: require('../examples/TurboModule/LegacyModuleExample'),
   },
+  {
+    key: 'TurboCxxModuleExample',
+    module: require('../examples/TurboModule/TurboCxxModuleExample'),
+  },
   {
     key: 'VibrationExample',
     module: require('../examples/Vibration/VibrationExample'),
diff --git a/packages/@react-native/tester/overrides.json b/packages/@react-native/tester/overrides.json
index e3ce3fad58a..ce26296efc9 100644
--- a/packages/@react-native/tester/overrides.json
+++ b/packages/@react-native/tester/overrides.json
@@ -1,5 +1,5 @@
 {
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "copy",
@@ -33,14 +33,14 @@
       "type": "copy",
       "directory": "js/examples/ActivityIndicator",
       "baseDirectory": "packages/rn-tester/js/examples/ActivityIndicator",
-      "baseHash": "cbfe5e59a4e1f879756d2dfb7d740daf83b0bc6f",
+      "baseHash": "f19362fda8ad04c20a68d26175431cb4839100fc",
       "issue": 4054
     },
     {
       "type": "copy",
       "directory": "js/examples/Alert",
       "baseDirectory": "packages/rn-tester/js/examples/Alert",
-      "baseHash": "50936fa640fba028d0efe7d391968e02c409a9e5",
+      "baseHash": "58721c030519e482397c158130f5ff6dea2bfdeb",
       "issue": 4054
     },
     {
@@ -110,7 +110,7 @@
       "type": "copy",
       "directory": "js/examples/Appearance",
       "baseDirectory": "packages/rn-tester/js/examples/Appearance",
-      "baseHash": "2f8b7443fee23e06736f638575fcace2e31dffad",
+      "baseHash": "613e0b5d9573f3f7e743ccde4fe6c6bc5841e3a3",
       "issue": 4054
     },
     {
@@ -131,14 +131,14 @@
       "type": "copy",
       "directory": "js/examples/BoxShadow",
       "baseDirectory": "packages/rn-tester/js/examples/BoxShadow",
-      "baseHash": "30d7c9a61b97ba9e2fa50ab1fbd2e95bc69bf578",
+      "baseHash": "07bd376e34b5faf95c0da5774c040bedc6b21ffd",
       "issue": 4054
     },
     {
       "type": "copy",
       "directory": "js/examples/Button",
       "baseDirectory": "packages/rn-tester/js/examples/Button",
-      "baseHash": "9128b96da49cf2265707e7a45885fec6f21b0531",
+      "baseHash": "9710f5f16c70537ae4616dc88d1aed3c4eb02a22",
       "issue": 4054
     },
     {
@@ -201,7 +201,7 @@
       "type": "copy",
       "directory": "js/examples/Filter",
       "baseDirectory": "packages/rn-tester/js/examples/Filter",
-      "baseHash": "6b4161c9df6517cc185d20e33a1c9f39391a82f6",
+      "baseHash": "864458397da5ce603b97c5d6dbd65abf2733ce63",
       "issue": 4054
     },
     {
@@ -215,7 +215,7 @@
       "type": "copy",
       "directory": "js/examples/Image",
       "baseDirectory": "packages/rn-tester/js/examples/Image",
-      "baseHash": "ef91fd1f837dc2f279e52bd2d5f596281405110c",
+      "baseHash": "6a8dbf8bdde90eecbd9ca980390e6fae726d0107",
       "issue": 4054
     },
     {
@@ -431,7 +431,7 @@
       "type": "copy",
       "directory": "js/examples/Pressable",
       "baseDirectory": "packages/rn-tester/js/examples/Pressable",
-      "baseHash": "197888ec54b06ef92de24e64912061f743f27c39",
+      "baseHash": "e183b961dc2cba1cbd40d6d5ae398d00e9271d64",
       "issue": 4054
     },
     {
@@ -529,7 +529,7 @@
       "type": "copy",
       "directory": "js/examples/Text",
       "baseDirectory": "packages/rn-tester/js/examples/Text",
-      "baseHash": "b59010ecb3c85866dd3eafb4f56d03a2d0738cea",
+      "baseHash": "9ed7ac5f4d6291e6d083aca513b204924b795a27",
       "issue": 4054
     },
     {
@@ -592,14 +592,14 @@
       "type": "copy",
       "directory": "js/examples/Touchable",
       "baseDirectory": "packages/rn-tester/js/examples/Touchable",
-      "baseHash": "eba111cf46fca7fd70eacb629681a2284231e271",
+      "baseHash": "a33e4599174cfd0988cc64c9d743c3e91ecba69b",
       "issue": 4054
     },
     {
       "type": "copy",
       "directory": "js/examples/Transform",
       "baseDirectory": "packages/rn-tester/js/examples/Transform",
-      "baseHash": "31489a9e1c811289f20dcbcc0a9d0fae098318ec",
+      "baseHash": "9513928165cced31351220504e5a0abc113e910a",
       "issue": 4054
     },
     {
@@ -613,7 +613,7 @@
       "type": "copy",
       "directory": "js/examples/TurboModule",
       "baseDirectory": "packages/rn-tester/js/examples/TurboModule",
-      "baseHash": "b5c3d0c8e94f042a3f441bb7c1e563adfaf65480",
+      "baseHash": "6a8c781e0f1e9fde942c62edb6698b493ad04cb6",
       "issue": 4054
     },
     {
@@ -689,14 +689,14 @@
       "type": "copy",
       "file": "js/utils/RNTesterList.android.js",
       "baseFile": "packages/rn-tester/js/utils/RNTesterList.android.js",
-      "baseHash": "d0b6e7eccdc020d76d263b3e88becfb565b4671d",
+      "baseHash": "6c9c1b36ee77323fa1b76235eaab9907ee7c733c",
       "issue": 13228
     },
     {
       "type": "copy",
       "file": "js/utils/RNTesterList.ios.js",
       "baseFile": "packages/rn-tester/js/utils/RNTesterList.ios.js",
-      "baseHash": "99ea8ccf7a0e141f60bb5e66d65c0db77769d060",
+      "baseHash": "d8d86ed8234063e23237786213ccd00cfda1e2dc",
       "issue": 13228
     },
     {
diff --git a/packages/@react-native/tester/package.json b/packages/@react-native/tester/package.json
index e94ce148f28..20f7d53d225 100644
--- a/packages/@react-native/tester/package.json
+++ b/packages/@react-native/tester/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/tester",
-  "version": "0.85.0-nightly-20260303-c26dbe286",
+  "version": "0.86.0-nightly-20260310-621592d1f",
   "private": true,
   "description": "React Native tester app.",
   "license": "MIT",
@@ -25,8 +25,8 @@
     "e2e-test-ios": "./scripts/maestro-test-ios.sh"
   },
   "dependencies": {
-    "@react-native/new-app-screen": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/popup-menu-android": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/new-app-screen": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/popup-menu-android": "0.86.0-nightly-20260310-621592d1f",
     "flow-enums-runtime": "^0.0.6",
     "invariant": "^2.2.4",
     "nullthrows": "^1.1.1"
@@ -62,7 +62,7 @@
     "commander": "^12.0.0",
     "listr2": "^6.4.1",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "rxjs": "npm:@react-native-community/rxjs@6.5.4-custom"
   }
 }
diff --git a/packages/@rnw-scripts/babel-react-native-config/package.json b/packages/@rnw-scripts/babel-react-native-config/package.json
index 4dd38eb8d1e..ed675c5881b 100644
--- a/packages/@rnw-scripts/babel-react-native-config/package.json
+++ b/packages/@rnw-scripts/babel-react-native-config/package.json
@@ -11,12 +11,12 @@
   },
   "dependencies": {
     "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/babel-preset": "0.86.0-nightly-20260310-621592d1f",
     "babel-plugin-transform-flow-enums": "^0.0.2"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/babel-preset": "0.86.0-nightly-20260310-621592d1f",
     "eslint": "^8.19.0",
     "prettier": "^3.6.2"
   },
diff --git a/packages/@rnw-scripts/eslint-config/package.json b/packages/@rnw-scripts/eslint-config/package.json
index e59af7a6db3..64efe7ea643 100644
--- a/packages/@rnw-scripts/eslint-config/package.json
+++ b/packages/@rnw-scripts/eslint-config/package.json
@@ -13,7 +13,7 @@
     "@babel/core": "^7.25.2",
     "@babel/eslint-parser": "^7.25.1",
     "@microsoft/eslint-plugin-sdl": "^0.2.0",
-    "@react-native/eslint-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/eslint-config": "0.86.0-nightly-20260310-621592d1f",
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-ft-flow": "^2.0.1",
     "hermes-eslint": "0.23.1"
diff --git a/packages/@rnw-scripts/integrate-rn/package.json b/packages/@rnw-scripts/integrate-rn/package.json
index 8f81ba233e4..19058319b65 100644
--- a/packages/@rnw-scripts/integrate-rn/package.json
+++ b/packages/@rnw-scripts/integrate-rn/package.json
@@ -18,7 +18,7 @@
   },
   "bin": "./bin.js",
   "dependencies": {
-    "@react-native-community/template": "0.84.1",
+    "@react-native-community/template": "0.85.3",
     "@react-native-windows/find-repo-root": "^0.0.0-canary.101",
     "@react-native-windows/fs": "^0.0.0-canary.72",
     "@react-native-windows/package-utils": "^0.0.0-canary.98",
@@ -52,7 +52,7 @@
     "jest": "^29.7.0",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "typescript": "5.0.4"
   },
   "files": [
diff --git a/packages/@rnw-scripts/metro-dev-config/package.json b/packages/@rnw-scripts/metro-dev-config/package.json
index 37ac5d3d931..f9ce7efda97 100644
--- a/packages/@rnw-scripts/metro-dev-config/package.json
+++ b/packages/@rnw-scripts/metro-dev-config/package.json
@@ -17,7 +17,7 @@
     "lint:fix": "rnw-scripts lint:fix"
   },
   "dependencies": {
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnx-kit/metro-config": "^2.2.3",
     "@rnx-kit/metro-plugin-duplicates-checker": "^3.0.2",
     "@rnx-kit/metro-serializer": "^2.0.3",
@@ -30,7 +30,7 @@
     "eslint": "^8.19.0",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "typescript": "5.0.4"
   },
   "peerDependencies": {
diff --git a/packages/e2e-test-app-fabric/package.json b/packages/e2e-test-app-fabric/package.json
index a594b893ea5..194fd770812 100644
--- a/packages/e2e-test-app-fabric/package.json
+++ b/packages/e2e-test-app-fabric/package.json
@@ -27,12 +27,12 @@
   "dependencies": {
     "@react-native-windows/automation-channel": "0.0.0-canary.1058",
     "@react-native-windows/tester": "0.0.1",
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@types/react": "^19.1.1",
     "@typescript-eslint/eslint-plugin": "^8.36.0",
     "@typescript-eslint/parser": "^8.36.0",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058"
   },
   "devDependencies": {
@@ -46,7 +46,7 @@
     "@react-native-windows/automation-commands": "0.0.0-canary.1059",
     "@react-native-windows/fs": "^0.0.0-canary.72",
     "@react-native-windows/perf-testing": "0.0.0-canary.1039",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-node-config": "2.3.3",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
diff --git a/packages/playground/package.json b/packages/playground/package.json
index 5b09288d0fe..144feb3de15 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -11,19 +11,19 @@
   "dependencies": {
     "@react-native-picker/picker": "2.11.0",
     "@react-native-windows/tester": "0.0.1",
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@types/react": "^19.1.1",
     "@typescript-eslint/eslint-plugin": "^8.36.0",
     "@typescript-eslint/parser": "^8.36.0",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
     "@babel/runtime": "^7.20.0",
     "@react-native-community/cli": "20.0.0",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
     "@rnw-scripts/just-task": "2.3.58",
diff --git a/packages/react-native-windows-init/package.json b/packages/react-native-windows-init/package.json
index 9a36a97f598..a05e24f3747 100644
--- a/packages/react-native-windows-init/package.json
+++ b/packages/react-native-windows-init/package.json
@@ -53,7 +53,7 @@
     "jest": "^29.7.0",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "typescript": "5.0.4"
   },
   "files": [
diff --git a/packages/sample-app-fabric/package.json b/packages/sample-app-fabric/package.json
index dbabdbd84a1..8265a859e56 100644
--- a/packages/sample-app-fabric/package.json
+++ b/packages/sample-app-fabric/package.json
@@ -12,13 +12,13 @@
     "bundle": "rnw-scripts prepareBundle && npx @react-native-community/cli bundle --platform windows --entry-file App.tsx --bundle-output windows/SampleAppFabric/Bundle/app.windows.bundle --assets-dest windows/SampleAppFabric/Bundle"
   },
   "dependencies": {
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@react-native/new-app-screen": "0.82.0-nightly-20250821-0ef21bf8a",
     "@types/react": "^19.1.1",
     "@typescript-eslint/eslint-plugin": "^8.36.0",
     "@typescript-eslint/parser": "^8.36.0",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058"
   },
   "devDependencies": {
@@ -29,7 +29,7 @@
     "@babel/runtime": "^7.20.0",
     "@jest/globals": "^29.7.0",
     "@react-native-community/cli": "20.0.0",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-node-config": "2.3.3",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
diff --git a/packages/sample-custom-component/package.json b/packages/sample-custom-component/package.json
index c8a0fb0a276..29e833d6baf 100644
--- a/packages/sample-custom-component/package.json
+++ b/packages/sample-custom-component/package.json
@@ -20,11 +20,11 @@
     }
   },
   "dependencies": {
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@types/react": "^19.1.1",
     "minimatch": "^10.0.3",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-windows": "^0.0.0-canary.1058"
   },
   "devDependencies": {
@@ -34,7 +34,7 @@
     "@babel/preset-typescript": "^7.8.3",
     "@babel/runtime": "^7.20.0",
     "@react-native-community/cli": "20.0.0",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-node-config": "2.3.3",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
diff --git a/vnext/.flowconfig b/vnext/.flowconfig
index fe007191910..60674310207 100644
--- a/vnext/.flowconfig
+++ b/vnext/.flowconfig
@@ -169,4 +169,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.303.0
+^0.304.0
diff --git a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp
index 6c842ffb899..3d8999a4038 100644
--- a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp
+++ b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp
@@ -8,10 +8,10 @@
 #include "NetworkIOAgent.h"
 #include "InspectorFlags.h"
 
-#include "Base64.h"
 #include "Utf8.h"
 
 #include <jsinspector-modern/network/NetworkHandler.h>
+#include <react/utils/Base64.h>
 
 #include <sstream>
 #include <tuple>
diff --git a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp
index 3a390c6bd88..296fa2b6d02 100644
--- a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp
+++ b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp
@@ -42,26 +42,38 @@ static jsi::Value touchEventPayload(
   return object;
 }
 
+static HighResTimeStamp getTimestampFromTouchEvent(const TouchEvent& event) {
+  if (!event.changedTouches.empty()) {
+    const auto& firstChangedTouch = *event.changedTouches.begin();
+    return firstChangedTouch.timeStamp;
+  }
+  return HighResTimeStamp::now();
+}
+
 void TouchEventEmitter::dispatchTouchEvent(
     std::string type,
     TouchEvent event,
     RawEvent::Category category) const {
+  auto eventTimestamp = getTimestampFromTouchEvent(event);
   dispatchEvent(
       std::move(type),
       [event = std::move(event)](jsi::Runtime& runtime) {
         return touchEventPayload(runtime, event);
       },
-      category);
+      category,
+      eventTimestamp);
 }
 
 void TouchEventEmitter::dispatchPointerEvent(
     std::string type,
     PointerEvent event,
     RawEvent::Category category) const {
+  auto eventTimestamp = event.timeStamp;
   dispatchEvent(
       std::move(type),
       std::make_shared<PointerEvent>(std::move(event)),
-      category);
+      category,
+      eventTimestamp);
 }
 
 void TouchEventEmitter::onTouchStart(TouchEvent event) const {
@@ -70,10 +82,13 @@ void TouchEventEmitter::onTouchStart(TouchEvent event) const {
 }
 
 void TouchEventEmitter::onTouchMove(TouchEvent event) const {
+  auto eventTimestamp = getTimestampFromTouchEvent(event);
   dispatchUniqueEvent(
-      "touchMove", [event = std::move(event)](jsi::Runtime& runtime) {
+      "touchMove",
+      [event = std::move(event)](jsi::Runtime& runtime) {
         return touchEventPayload(runtime, event);
-      });
+      },
+      eventTimestamp);
 }
 
 void TouchEventEmitter::onTouchEnd(TouchEvent event) const {
@@ -105,8 +120,11 @@ void TouchEventEmitter::onPointerDown(PointerEvent event) const {
 }
 
 void TouchEventEmitter::onPointerMove(PointerEvent event) const {
+  auto eventTimestamp = event.timeStamp;
   dispatchUniqueEvent(
-      "pointerMove", std::make_shared<PointerEvent>(std::move(event)));
+      "pointerMove",
+      std::make_shared<PointerEvent>(std::move(event)),
+      eventTimestamp);
 }
 
 void TouchEventEmitter::onPointerUp(PointerEvent event) const {
diff --git a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h
index 1b73cfa4259..82c293bade9 100644
--- a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h
+++ b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h
@@ -13,6 +13,7 @@
 #include <react/renderer/core/LayoutMetrics.h>
 #include <react/renderer/core/ReactPrimitives.h>
 #include <react/renderer/debug/DebugStringConvertible.h>
+#include <react/timing/primitives.h>
 
 namespace facebook::react {
 
diff --git a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp
index 08b4798528b..81232fcd4d8 100644
--- a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp
+++ b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp
@@ -493,6 +493,10 @@ void UIManager::sendAccessibilityEvent(
   }
 }
 
+UIManagerViewTransitionDelegate* UIManager::getViewTransitionDelegate() const {
+  return viewTransitionDelegate_;
+}
+
 void UIManager::configureNextLayoutAnimation(
     jsi::Runtime& runtime,
     const RawValue& config,
@@ -713,6 +717,13 @@ void UIManager::setNativeAnimatedDelegate(
   nativeAnimatedDelegate_ = delegate;
 }
 
+void UIManager::setViewTransitionDelegate(
+    UIManagerViewTransitionDelegate* delegate) {
+  if (ReactNativeFeatureFlags::viewTransitionEnabled()) {
+    viewTransitionDelegate_ = delegate;
+  }
+}
+
 void UIManager::unstable_setAnimationBackend(
     std::shared_ptr<UIManagerAnimationBackend> animationBackend) {
   animationBackend_ = animationBackend;
diff --git a/vnext/Scripts/Warm-RnwFeedCache.ps1 b/vnext/Scripts/Warm-RnwFeedCache.ps1
index febf59fb5f2..da8e5645a8d 100644
--- a/vnext/Scripts/Warm-RnwFeedCache.ps1
+++ b/vnext/Scripts/Warm-RnwFeedCache.ps1
@@ -61,7 +61,7 @@
 
 .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
 #>
 [CmdletBinding()]
 param(
diff --git a/vnext/Scripts/creaternwapp.cmd b/vnext/Scripts/creaternwapp.cmd
index c6f5f3e3234..c0e3d4dfc78 100644
--- a/vnext/Scripts/creaternwapp.cmd
+++ b/vnext/Scripts/creaternwapp.cmd
@@ -120,7 +120,7 @@ if not "x%RN_VERSION:nightly=%"=="x%RN_VERSION%" (
   REM Do not change, this makes sure we always get a nightly template when still consuming a nightly RN and NOT a later "stable" template that may have been released
   REM set RNCLI_TEMPLATE=--template "@react-native-community/template@^%RN_VERSION:~0,4%.0-"
   REM Windows we need to manually update this with every integration #15124
-  set RNCLI_TEMPLATE=--template "@react-native-community/template@0.84.1"
+  set RNCLI_TEMPLATE=--template "@react-native-community/template@0.85.3"
 )
 
 @echo creaternwapp.cmd: Creating base RN app project with: npx --yes @react-native-community/cli@%RNCLI_VERSION% init %APP_NAME% --version %RN_VERSION% %RNCLI_TEMPLATE% --verbose --skip-install --install-pods false --skip-git-init true
diff --git a/vnext/overrides.json b/vnext/overrides.json
index 4cbbdcdb516..709edb34ddb 100644
--- a/vnext/overrides.json
+++ b/vnext/overrides.json
@@ -8,13 +8,13 @@
     "**/__snapshots__/**",
     "src-win/rntypes/**"
   ],
-  "baseVersion": "0.85.0-nightly-20260303-c26dbe286",
+  "baseVersion": "0.86.0-nightly-20260310-621592d1f",
   "overrides": [
     {
       "type": "derived",
       "file": ".flowconfig",
       "baseFile": ".flowconfig",
-      "baseHash": "56a63445d9d20e6c25fea831d9d0d41b9c5b6463"
+      "baseHash": "007a05886f74a088134c955545ce174d75d8178a"
     },
     {
       "type": "derived",
@@ -84,7 +84,7 @@
       "type": "patch",
       "file": "ReactCommon/TEMP_UntilReactCommonUpdate/jsinspector-modern/NetworkIOAgent.cpp",
       "baseFile": "packages/react-native/ReactCommon/jsinspector-modern/NetworkIOAgent.cpp",
-      "baseHash": "fc90bdc60cc964118c6b7affde52b4645ee35053",
+      "baseHash": "259fccd72144e07a42048fa8700ff0348fa6557c",
       "issue": 13587
     },
     {
@@ -193,13 +193,13 @@
       "type": "patch",
       "file": "ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.cpp",
       "baseFile": "packages/react-native/ReactCommon/react/renderer/components/view/TouchEventEmitter.cpp",
-      "baseHash": "76b208ec90cd8223a6cb917727ee0633001b6d00"
+      "baseHash": "9c88078cdf8236a4f51fa01f692b9e43c923bc21"
     },
     {
       "type": "patch",
       "file": "ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/components/view/TouchEventEmitter.h",
       "baseFile": "packages/react-native/ReactCommon/react/renderer/components/view/TouchEventEmitter.h",
-      "baseHash": "990884e6164dec969cb56b5c318cd11e13d2b8ee"
+      "baseHash": "b2884678b0f004be9d73cf1a270e99141bc027b1"
     },
     {
       "type": "patch",
@@ -219,7 +219,7 @@
       "type": "derived",
       "file": "ReactCommon/TEMP_UntilReactCommonUpdate/react/renderer/uimanager/UIManager.cpp",
       "baseFile": "packages/react-native/ReactCommon/react/renderer/uimanager/UIManager.cpp",
-      "baseHash": "22282ea20e653b81c4998c654404935072fed3f3"
+      "baseHash": "3405f56a23adc1a5784d96bcf4041c5e43755b48"
     },
     {
       "type": "derived",
@@ -312,7 +312,7 @@
       "type": "patch",
       "file": "src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js",
       "baseFile": "packages/react-native/Libraries/Components/AccessibilityInfo/AccessibilityInfo.js",
-      "baseHash": "ee6f102be5d4b456d16900499a01abd0ca1ce1ba",
+      "baseHash": "decdc9e7b2af21254c017402ca81b45dbec5018f",
       "issue": 4578
     },
     {
@@ -479,7 +479,7 @@
       "type": "patch",
       "file": "src-win/Libraries/Components/View/View.windows.js",
       "baseFile": "packages/react-native/Libraries/Components/View/View.js",
-      "baseHash": "60eab5df574b43200494005fc3f00d11576d515b"
+      "baseHash": "194eebd6a94c61218461d08ef879e852e8503883"
     },
     {
       "type": "derived",
@@ -576,13 +576,13 @@
       "type": "derived",
       "file": "src-win/Libraries/NativeComponent/BaseViewConfig.windows.js",
       "baseFile": "packages/react-native/Libraries/NativeComponent/BaseViewConfig.ios.js",
-      "baseHash": "5b9617aa1bedd5c70b30dac1f3b35aa535976b54"
+      "baseHash": "0e417b1f78fd687a14b84df695eb02e434db4262"
     },
     {
       "type": "derived",
       "file": "src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js",
       "baseFile": "packages/react-native/Libraries/NativeComponent/ViewConfigIgnore.js",
-      "baseHash": "1bde2f3d9c647b0f541d03a1f2281848591158c5"
+      "baseHash": "2e9c8aee8d920c24a48ed23cb9aa440bc5ac8efe"
     },
     {
       "type": "derived",
@@ -594,7 +594,7 @@
       "type": "copy",
       "file": "src-win/Libraries/Network/RCTNetworking.windows.js",
       "baseFile": "packages/react-native/Libraries/Network/RCTNetworking.ios.js",
-      "baseHash": "475b803e357811f6989d8d116bb040cfb1735b7c"
+      "baseHash": "0044e93421915bb8da461a5660141ae69dff17c7"
     },
     {
       "type": "platform",
@@ -691,7 +691,7 @@
       "type": "patch",
       "file": "src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js",
       "baseFile": "packages/react-native/src/private/featureflags/ReactNativeFeatureFlagsBase.js",
-      "baseHash": "4292895849232605a17d10b0cc1c167126bf6f3e"
+      "baseHash": "a513ee5bbcebb6aa7a29deb8c66a77ff0cb8c334"
     },
     {
       "type": "patch",
diff --git a/vnext/package.json b/vnext/package.json
index 3ea097c94d9..fb72a72bc6f 100644
--- a/vnext/package.json
+++ b/vnext/package.json
@@ -28,15 +28,15 @@
     "@react-native-community/cli-platform-ios": "20.0.0",
     "@react-native-windows/cli": "0.0.0-canary.292",
     "@react-native/assets": "1.0.0",
-    "@react-native/assets-registry": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/codegen": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/community-cli-plugin": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/gradle-plugin": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/js-polyfills": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/new-app-screen": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/normalize-colors": "0.85.0-nightly-20260303-c26dbe286",
-    "@react-native/virtualized-lists": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/assets-registry": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/codegen": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/community-cli-plugin": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/gradle-plugin": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/js-polyfills": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/new-app-screen": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/normalize-colors": "0.86.0-nightly-20260310-621592d1f",
+    "@react-native/virtualized-lists": "0.86.0-nightly-20260310-621592d1f",
     "abort-controller": "^3.0.0",
     "anser": "^1.4.9",
     "ansi-regex": "^5.0.0",
@@ -75,7 +75,7 @@
     "@babel/preset-env": "^7.25.3",
     "@react-native-windows/codegen": "0.0.0-canary.133",
     "@react-native-windows/find-dotnet-tools": "0.0.0-canary.2",
-    "@react-native/metro-config": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/metro-config": "0.86.0-nightly-20260310-621592d1f",
     "@rnw-scripts/babel-react-native-config": "0.0.0",
     "@rnw-scripts/eslint-config": "1.2.38",
     "@rnw-scripts/jest-out-of-tree-snapshot-resolver": "^1.1.42",
@@ -90,16 +90,16 @@
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
     "react": "19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286",
+    "react-native": "0.86.0-nightly-20260310-621592d1f",
     "react-native-platform-override": "0.0.0-canary.1023",
     "react-refresh": "^0.14.0",
     "typescript": "5.0.4"
   },
   "peerDependencies": {
-    "@react-native/jest-preset": "0.85.0-nightly-20260303-c26dbe286",
+    "@react-native/jest-preset": "0.86.0-nightly-20260310-621592d1f",
     "@types/react": "^19.1.1",
     "react": "^19.2.3",
-    "react-native": "0.85.0-nightly-20260303-c26dbe286"
+    "react-native": "0.86.0-nightly-20260310-621592d1f"
   },
   "beachball": {
     "defaultNpmTag": "canary",
diff --git a/vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js b/vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js
index ce52d4159c5..f823b2234e5 100644
--- a/vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js
+++ b/vnext/src-win/Libraries/Components/AccessibilityInfo/AccessibilityInfo.windows.js
@@ -280,10 +280,10 @@ const AccessibilityInfo = {
    * See https://reactnative.dev/docs/accessibilityinfo#prefersCrossFadeTransitions
    */
   prefersCrossFadeTransitions(): Promise<boolean> {
-    return new Promise((resolve, reject) => {
-      if (Platform.OS === 'android') {
-        return Promise.resolve(false);
-      } else {
+    if (Platform.OS === 'android') {
+      return Promise.resolve(false);
+    } else {
+      return new Promise((resolve, reject) => {
         if (
           NativeAccessibilityManagerIOS?.getCurrentPrefersCrossFadeTransitionsState !=
           null
@@ -299,8 +299,8 @@ const AccessibilityInfo = {
             ),
           );
         }
-      }
-    });
+      });
+    }
   },
 
   /**
@@ -435,7 +435,7 @@ const AccessibilityInfo = {
    *
    * See https://reactnative.dev/docs/accessibilityinfo#addeventlistener
    */
-  addEventListener<K: keyof AccessibilityEventDefinitions>(
+  addEventListener<K extends keyof AccessibilityEventDefinitions>(
     eventName: K,
     // $FlowFixMe[incompatible-type] - Flow bug with unions and generics (T128099423)
     handler: (...AccessibilityEventDefinitions[K]) => void,
diff --git a/vnext/src-win/Libraries/Components/View/View.windows.js b/vnext/src-win/Libraries/Components/View/View.windows.js
index 565725af562..15b8ad7b6fe 100644
--- a/vnext/src-win/Libraries/Components/View/View.windows.js
+++ b/vnext/src-win/Libraries/Components/View/View.windows.js
@@ -10,6 +10,7 @@
 
 import type {ViewProps} from './ViewPropTypes';
 
+import * as ReactNativeFeatureFlags from '../../../src/private/featureflags/ReactNativeFeatureFlags';
 import TextAncestorContext from '../../Text/TextAncestorContext';
 import ViewNativeComponent from './ViewNativeComponent';
 import * as React from 'react';
@@ -68,6 +69,37 @@ component View(
 ) {
   const hasTextAncestor = use(TextAncestorContext);
 
+<<<<<<< Upstream
+  let resolvedProps = props;
+  if (!ReactNativeFeatureFlags.enableNativeViewPropTransformations()) {
+    const {
+      accessibilityState,
+      accessibilityValue,
+      'aria-busy': ariaBusy,
+      'aria-checked': ariaChecked,
+      'aria-disabled': ariaDisabled,
+      'aria-expanded': ariaExpanded,
+      'aria-hidden': ariaHidden,
+      'aria-label': ariaLabel,
+      'aria-labelledby': ariaLabelledBy,
+      'aria-live': ariaLive,
+      'aria-selected': ariaSelected,
+      'aria-valuemax': ariaValueMax,
+      'aria-valuemin': ariaValueMin,
+      'aria-valuenow': ariaValueNow,
+      'aria-valuetext': ariaValueText,
+      id,
+      tabIndex,
+      ...otherProps
+    } = props;
+
+    const processedProps = otherProps as {...ViewProps};
+
+    const parsedAriaLabelledBy = ariaLabelledBy?.split(/\s*,\s*/g);
+    if (parsedAriaLabelledBy !== undefined) {
+      processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
+    }
+=======
   let actualView;
   const {
     accessibilityState,
@@ -104,23 +136,29 @@ component View(
   if (parsedAriaLabelledBy !== undefined) {
     processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
   }
+>>>>>>> Override
 
-  if (ariaLabel !== undefined) {
-    processedProps.accessibilityLabel = ariaLabel;
-  }
+    if (ariaLabel !== undefined) {
+      processedProps.accessibilityLabel = ariaLabel;
+    }
 
-  if (ariaLive !== undefined) {
-    processedProps.accessibilityLiveRegion =
-      ariaLive === 'off' ? 'none' : ariaLive;
-  }
+    if (ariaLive !== undefined) {
+      processedProps.accessibilityLiveRegion =
+        ariaLive === 'off' ? 'none' : ariaLive;
+    }
 
-  if (ariaHidden !== undefined) {
-    processedProps.accessibilityElementsHidden = ariaHidden;
-    if (ariaHidden === true) {
-      processedProps.importantForAccessibility = 'no-hide-descendants';
+    if (ariaHidden !== undefined) {
+      processedProps.accessibilityElementsHidden = ariaHidden;
+      if (ariaHidden === true) {
+        processedProps.importantForAccessibility = 'no-hide-descendants';
+      }
     }
-  }
 
+<<<<<<< Upstream
+    if (id !== undefined) {
+      processedProps.nativeID = id;
+    }
+=======
   // Windows accessibility properties
   if (ariaLevel !== undefined) {
     processedProps.accessibilityLevel = ariaLevel;
@@ -141,11 +179,45 @@ component View(
   if (id !== undefined) {
     processedProps.nativeID = id;
   }
+>>>>>>> Override
 
-  if (tabIndex !== undefined) {
-    processedProps.focusable = !tabIndex;
-  }
+    if (tabIndex !== undefined) {
+      processedProps.focusable = !tabIndex;
+    }
+
+<<<<<<< Upstream
+    if (
+      accessibilityState != null ||
+      ariaBusy != null ||
+      ariaChecked != null ||
+      ariaDisabled != null ||
+      ariaExpanded != null ||
+      ariaSelected != null
+    ) {
+      processedProps.accessibilityState = {
+        busy: ariaBusy ?? accessibilityState?.busy,
+        checked: ariaChecked ?? accessibilityState?.checked,
+        disabled: ariaDisabled ?? accessibilityState?.disabled,
+        expanded: ariaExpanded ?? accessibilityState?.expanded,
+        selected: ariaSelected ?? accessibilityState?.selected,
+      };
+    }
 
+    if (
+      accessibilityValue != null ||
+      ariaValueMax != null ||
+      ariaValueMin != null ||
+      ariaValueNow != null ||
+      ariaValueText != null
+    ) {
+      processedProps.accessibilityValue = {
+        max: ariaValueMax ?? accessibilityValue?.max,
+        min: ariaValueMin ?? accessibilityValue?.min,
+        now: ariaValueNow ?? accessibilityValue?.now,
+        text: ariaValueText ?? accessibilityValue?.text,
+      };
+    }
+=======
   if (
     accessibilityState != null ||
     ariaBusy != null ||
@@ -169,20 +241,9 @@ component View(
       required: ariaRequired ?? accessibilityState?.required, // Windows
     };
   }
+>>>>>>> Override
 
-  if (
-    accessibilityValue != null ||
-    ariaValueMax != null ||
-    ariaValueMin != null ||
-    ariaValueNow != null ||
-    ariaValueText != null
-  ) {
-    processedProps.accessibilityValue = {
-      max: ariaValueMax ?? accessibilityValue?.max,
-      min: ariaValueMin ?? accessibilityValue?.min,
-      now: ariaValueNow ?? accessibilityValue?.now,
-      text: ariaValueText ?? accessibilityValue?.text,
-    };
+    resolvedProps = processedProps;
   }
 
   // [Windows key event processing and accessible property
@@ -285,9 +346,9 @@ component View(
 
   actualView =
     ref == null ? (
-      <ViewNativeComponent {...processedProps} />
+      <ViewNativeComponent {...resolvedProps} />
     ) : (
-      <ViewNativeComponent {...processedProps} ref={ref} />
+      <ViewNativeComponent {...resolvedProps} ref={ref} />
     );
 
   if (hasTextAncestor) {
diff --git a/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js b/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
index 44fa3ca8312..f5b0826a002 100644
--- a/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
+++ b/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
@@ -244,7 +244,22 @@ const validAttributesForNonEventProps = {
   transformOrigin: true,
   accessibilityRole: true,
   accessibilityState: true,
+  'aria-busy': true,
+  'aria-checked': true,
+  'aria-disabled': true,
+  'aria-expanded': true,
+  'aria-hidden': true,
+  'aria-label': true,
+  'aria-labelledby': true,
+  'aria-live': true,
+  'aria-selected': true,
+  'aria-valuemax': true,
+  'aria-valuemin': true,
+  'aria-valuenow': true,
+  'aria-valuetext': true,
+  tabIndex: true,
   nativeID: true,
+  id: true,
   pointerEvents: true,
   removeClippedSubviews: true,
   role: true,
diff --git a/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js b/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
index 9b2797b88de..5779bcfbda3 100644
--- a/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
+++ b/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
@@ -13,7 +13,13 @@ const ignoredViewConfigProps = new WeakSet < { ...} > ();
  * Decorates ViewConfig values that are dynamically injected by the library,
  * react-native-gesture-handler. (T45765076)
  */
+<<<<<<< Upstream
+export function DynamicallyInjectedByGestureHandler<T extends {...}>(
+  object: T,
+): T {
+=======
 export function DynamicallyInjectedByGestureHandler<T: {... }> (object: T): T {
+>>>>>>> Override
   ignoredViewConfigProps.add(object);
   return object;
 }
@@ -32,9 +38,18 @@ export function DynamicallyInjectedByGestureHandler<T: {... }> (object: T): T {
  * TODO(T110872225): Remove this logic, after achieving platform-consistency
  */
 export function ConditionallyIgnoredEventHandlers<
+<<<<<<< Upstream
+  const T extends {+[name: string]: true},
+>(value: T): T | void {
+  if (Platform.OS === 'ios') {
+    return value;
+  }
+  return undefined;
+=======
   const T: { +[name: string]: true },
 > (value: T): T | void {
   return value;
+>>>>>>> Override
 }
 
 export function isIgnored(value: unknown): boolean {
diff --git a/vnext/src-win/Libraries/Network/RCTNetworking.windows.js b/vnext/src-win/Libraries/Network/RCTNetworking.windows.js
index ec4720f9f46..a97c96dec1f 100644
--- a/vnext/src-win/Libraries/Network/RCTNetworking.windows.js
+++ b/vnext/src-win/Libraries/Network/RCTNetworking.windows.js
@@ -18,7 +18,7 @@ import {type RCTNetworkingEventDefinitions} from './RCTNetworkingEventDefinition
 import {type NativeResponseType} from './XMLHttpRequest';
 
 const RCTNetworking = {
-  addListener<K: keyof RCTNetworkingEventDefinitions>(
+  addListener<K extends keyof RCTNetworkingEventDefinitions>(
     eventType: K,
     listener: (...RCTNetworkingEventDefinitions[K]) => unknown,
     context?: unknown,
diff --git a/vnext/src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js b/vnext/src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js
index d9bd49bb742..7eecce19d74 100644
--- a/vnext/src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js
+++ b/vnext/src-win/src/private/featureflags/ReactNativeFeatureFlagsBase.js
@@ -30,7 +30,7 @@ export type OverridesFor<T> = Partial<{
   [key in keyof T]: Getter<?ReturnType<T[key]>>,
 }>;
 
-function createGetter<T: boolean | number | string>(
+function createGetter<T extends boolean | number | string>(
   configName: string,
   customValueGetter: Getter<?T>,
   defaultValue: T,
@@ -52,7 +52,7 @@ function createGetter<T: boolean | number | string>(
 }
 
 export function createJavaScriptFlagGetter<
-  K: keyof ReactNativeFeatureFlagsJsOnly,
+  K extends keyof ReactNativeFeatureFlagsJsOnly,
 >(
   configName: K,
   defaultValue: ReturnType<ReactNativeFeatureFlagsJsOnly[K]>,
@@ -69,7 +69,7 @@ export function createJavaScriptFlagGetter<
 
 type NativeFeatureFlags = NonNullable<typeof NativeReactNativeFeatureFlags>;
 
-export function createNativeFlagGetter<K: keyof NativeFeatureFlags>(
+export function createNativeFlagGetter<K extends keyof NativeFeatureFlags>(
   configName: K,
   defaultValue: ReturnType<NonNullable<NativeFeatureFlags[K]>>,
   skipUnavailableNativeModuleError: boolean = false,
diff --git a/yarn.lock b/yarn.lock
index 02522424024..3c1430e33d7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3540,7 +3540,7 @@ __metadata:
   resolution: "@office-iss/react-native-win32-tester@workspace:packages/@office-iss/react-native-win32-tester"
   dependencies:
     "@office-iss/react-native-win32": "npm:^0.0.0-canary.312"
-    "@react-native/tester": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/tester": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/just-task": "npm:2.3.58"
@@ -3553,13 +3553,13 @@ __metadata:
     just-scripts: "npm:^1.3.3"
     prettier: "npm:^3.6.2"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "npm:0.0.0-canary.1023"
     typescript: "npm:5.0.4"
   peerDependencies:
     "@office-iss/react-native-win32": ^0.0.0-canary.312
     react: 19.2.3
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
   languageName: unknown
   linkType: soft
 
@@ -3576,15 +3576,15 @@ __metadata:
     "@react-native-community/cli-platform-android": "npm:20.0.0"
     "@react-native-community/cli-platform-ios": "npm:20.0.0"
     "@react-native/assets": "npm:1.0.0"
-    "@react-native/assets-registry": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/codegen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/community-cli-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/gradle-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/js-polyfills": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/normalize-colors": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/virtualized-lists": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/assets-registry": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/codegen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/community-cli-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/gradle-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/js-polyfills": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/normalize-colors": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/virtualized-lists": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/jest-out-of-tree-snapshot-resolver": "npm:^1.1.42"
@@ -3625,7 +3625,7 @@ __metadata:
     react: "npm:19.2.3"
     react-clone-referenced-element: "npm:^1.0.1"
     react-devtools-core: "npm:^6.1.5"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "npm:0.0.0-canary.1023"
     react-refresh: "npm:^0.14.0"
     regenerator-runtime: "npm:^0.13.2"
@@ -3638,10 +3638,10 @@ __metadata:
     ws: "npm:^7.5.10"
     yargs: "npm:^17.6.2"
   peerDependencies:
-    "@react-native/jest-preset": 0.85.0-nightly-20260303-c26dbe286
+    "@react-native/jest-preset": 0.86.0-nightly-20260310-621592d1f
     "@types/react": ^19.1.1
     react: ^19.2.3
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
   languageName: unknown
   linkType: soft
 
@@ -3965,10 +3965,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@react-native-community/template@npm:0.84.1":
-  version: 0.84.1
-  resolution: "@react-native-community/template@npm:0.84.1"
-  checksum: 10c0/93d36a8d6eb70ac2f022bf9ee48ed5c6693fe93b475853b313a2a06a1ffe612fed8e81a0d0c819251323e07bd85647a8eb63ce06c03ae15f6ca7eeb164a3bc6f
+"@react-native-community/template@npm:0.85.3":
+  version: 0.85.3
+  resolution: "@react-native-community/template@npm:0.85.3::__archiveUrl=https%3A%2F%2Fms-feed-17.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native-community%2Ftemplate%2F-%2Ftemplate-0.85.3.tgz"
+  checksum: 10c0/26d2931e5800141c039a76038503c180713c8b931bfd5f096dd4b78235bbabaae1fc276a782c6cf260fa3f6c11b99046ba477eadc30cc9ca021408fe8c6a1b4e
   languageName: node
   linkType: hard
 
@@ -4000,7 +4000,7 @@ __metadata:
     minimatch: "npm:^10.0.3"
     prettier: "npm:^3.6.2"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-windows: "npm:^0.0.0-canary.1058"
     typescript: "npm:5.0.4"
   languageName: unknown
@@ -4100,7 +4100,7 @@ __metadata:
     prettier: "npm:^3.6.2"
     prompts: "npm:^2.4.1"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     semver: "npm:^7.3.2"
     shelljs: "npm:^0.8.4"
     typescript: "npm:5.0.4"
@@ -4244,7 +4244,7 @@ __metadata:
   peerDependencies:
     jest: ">=29.0.3"
     react: ">=18.0.0"
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
     react-test-renderer: ">=18.0.0"
   peerDependenciesMeta:
     react-test-renderer:
@@ -4291,8 +4291,9 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@react-native-windows/tester@workspace:packages/@react-native-windows/tester"
   dependencies:
-    "@react-native/new-app-screen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/tester": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native-picker/picker": "npm:2.11.0"
+    "@react-native/new-app-screen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/tester": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/just-task": "npm:2.3.58"
@@ -4306,14 +4307,14 @@ __metadata:
     just-scripts: "npm:^1.3.3"
     prettier: "npm:^3.6.2"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "npm:0.0.0-canary.1023"
     react-native-windows: "npm:^0.0.0-canary.1058"
     typescript: "npm:5.0.4"
   peerDependencies:
     "@react-native-picker/picker": 2.11.0
     react: 19.2.3
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
     react-native-windows: ^0.0.0-canary.1058
     react-native-xaml: ^0.0.80
   peerDependenciesMeta:
@@ -4324,10 +4325,10 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@react-native/assets-registry@npm:0.85.0-nightly-20260303-c26dbe286":
-  version: 0.85.0-nightly-20260303-c26dbe286
-  resolution: "@react-native/assets-registry@npm:0.85.0-nightly-20260303-c26dbe286"
-  checksum: 10c0/e8c9862254b70fd807b8dcfac994a7a41794c36128a358e495d7ae9a0183bdad190da2dfe0e901c24b9815fa03fb409d8cbc88a66f6e5a57fa29dae6db4a8cb4
+"@react-native/assets-registry@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/assets-registry@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-25.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fassets-registry%2F-%2Fassets-registry-0.86.0-nightly-20260310-621592d1f.tgz"
+  checksum: 10c0/d2fa8214e669f574bcaf9dde0f8e9ab3f0ce5ecc4afd115679e06a7a184750ad805b91b944aee49f4f07845ae21d6cb4e399d190edaba464fed15df30f102345
   languageName: node
   linkType: hard
 
@@ -4338,19 +4339,19 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@react-native/babel-plugin-codegen@npm:0.85.0-nightly-20260303-c26dbe286":
-  version: 0.85.0-nightly-20260303-c26dbe286
-  resolution: "@react-native/babel-plugin-codegen@npm:0.85.0-nightly-20260303-c26dbe286"
+"@react-native/babel-plugin-codegen@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/babel-plugin-codegen@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-25.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fbabel-plugin-codegen%2F-%2Fbabel-plugin-codegen-0.86.0-nightly-20260310-621592d1f.tgz"
   dependencies:
     "@babel/traverse": "npm:^7.29.0"
-    "@react-native/codegen": "npm:0.85.0-nightly-20260303-c26dbe286"
-  checksum: 10c0/ed1b442b6e549a05db7560dad1d1b321fcc341f1482e61904104056a478ec5fcb36564e824e7bb39af1ff87dc9fb54ac757c1965ea289d3c8e34be3c395fab78
+    "@react-native/codegen": "npm:0.86.0-nightly-20260310-621592d1f"
+  checksum: 10c0/f34f505ff86e1f9805346c739780550faf596f381bb3c43a45ba4ec5906fc4ad664aedae0cc8c8c530bdfafa8b2838d9c58bff65156af541a8b91cbac06a5c12
   languageName: node
   linkType: hard
 
-"@react-native/babel-preset@npm:0.85.0-nightly-20260303-c26dbe286":
-  version: 0.85.0-nightly-20260303-c26dbe286
-  resolution: "@react-native/babel-preset@npm:0.85.0-nightly-20260303-c26dbe286"
+"@react-native/babel-preset@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/babel-preset@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-2.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fbabel-preset%2F-%2Fbabel-preset-0.86.0-nightly-20260310-621592d1f.tgz"
   dependencies:
     "@babel/core": "npm:^7.25.2"
     "@babel/plugin-proposal-export-default-from": "npm:^7.24.7"
@@ -4381,19 +4382,19 @@ __metadata:
     "@babel/plugin-transform-runtime": "npm:^7.24.7"
     "@babel/plugin-transform-typescript": "npm:^7.25.2"
     "@babel/plugin-transform-unicode-regex": "npm:^7.24.7"
-    "@react-native/babel-plugin-codegen": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/babel-plugin-codegen": "npm:0.86.0-nightly-20260310-621592d1f"
     babel-plugin-syntax-hermes-parser: "npm:0.33.3"
     babel-plugin-transform-flow-enums: "npm:^0.0.2"
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   peerDependencies:
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     react: "*"
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
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-  resolution: "@react-native/normalize-colors@npm:0.85.0-nightly-20260303-c26dbe286"
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+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/normalize-colors@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-25.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fnormalize-colors%2F-%2Fnormalize-colors-0.86.0-nightly-20260310-621592d1f.tgz"
+  checksum: 10c0/a8f286cac36f1af6385ecd2449b915ff4b31d7b781f5879ee58143c03879fa5debe478c0935aa16ecde6e66fde3d34e9441762a0ad0628f0e0d53d22ed161380
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-  resolution: "@react-native/popup-menu-android@npm:0.85.0-nightly-20260303-c26dbe286"
+"@react-native/popup-menu-android@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/popup-menu-android@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-2.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fpopup-menu-android%2F-%2Fpopup-menu-android-0.86.0-nightly-20260310-621592d1f.tgz"
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   peerDependencies:
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     react: "*"
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
   peerDependenciesMeta:
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       optional: true
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+  checksum: 10c0/0a0aa581fe85531db42cf9742873d88b5c2712ce43274706136f932d7bc5810ddb4d8eb7edd83ce00f2eb9e91e4f6aa3097af129eef441f5026fb2428fd8d60b
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-"@react-native/tester@npm:0.85.0-nightly-20260303-c26dbe286, @react-native/tester@workspace:packages/@react-native/tester":
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   version: 0.0.0-use.local
   resolution: "@react-native/tester@workspace:packages/@react-native/tester"
   dependencies:
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     "@react-native-community/cli-platform-android": "npm:20.0.0"
     "@react-native-community/cli-platform-ios": "npm:20.0.0"
-    "@react-native/new-app-screen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/popup-menu-android": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/new-app-screen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/popup-menu-android": "npm:0.86.0-nightly-20260310-621592d1f"
     commander: "npm:^12.0.0"
     flow-enums-runtime: "npm:^0.0.6"
     invariant: "npm:^2.2.4"
     listr2: "npm:^6.4.1"
     nullthrows: "npm:^1.1.1"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     rxjs: "npm:@react-native-community/rxjs@6.5.4-custom"
   peerDependencies:
     react: 19.2.3
@@ -4708,20 +4709,20 @@ __metadata:
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   linkType: soft
 
-"@react-native/virtualized-lists@npm:0.85.0-nightly-20260303-c26dbe286":
-  version: 0.85.0-nightly-20260303-c26dbe286
-  resolution: "@react-native/virtualized-lists@npm:0.85.0-nightly-20260303-c26dbe286"
+"@react-native/virtualized-lists@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "@react-native/virtualized-lists@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-17.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2F%40react-native%2Fvirtualized-lists%2F-%2Fvirtualized-lists-0.86.0-nightly-20260310-621592d1f.tgz"
   dependencies:
     invariant: "npm:^2.2.4"
     nullthrows: "npm:^1.1.1"
   peerDependencies:
     "@types/react": ^19.2.0
     react: "*"
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
   peerDependenciesMeta:
     "@types/react":
       optional: true
-  checksum: 10c0/ffebc597cae46668a0b214e8f4810cfc56cc1ce43a88265ca64423db87af59cd8c3ac0fb44f5fff690f53f75e946ba540adacaf386eabc1af3b3cc51d1ebad8d
+  checksum: 10c0/72919364847b5fed9be39d73742080e2a6b5d84b5041c297e07d27c83c0368aef56402bdd24cc983c90e219bea9140e2cf7c4d15e63bd01dcd22c8fef4ab25bc
   languageName: node
   linkType: hard
 
@@ -4751,7 +4752,7 @@ __metadata:
   resolution: "@rnw-scripts/babel-react-native-config@workspace:packages/@rnw-scripts/babel-react-native-config"
   dependencies:
     "@babel/core": "npm:^7.25.2"
-    "@react-native/babel-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/babel-preset": "npm:0.86.0-nightly-20260310-621592d1f"
     babel-plugin-transform-flow-enums: "npm:^0.0.2"
     eslint: "npm:^8.19.0"
     prettier: "npm:^3.6.2"
@@ -4889,8 +4890,8 @@ __metadata:
     "@react-native-windows/fs": "npm:^0.0.0-canary.72"
     "@react-native-windows/perf-testing": "npm:0.0.0-canary.1039"
     "@react-native-windows/tester": "npm:0.0.1"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-node-config": "npm:2.3.3"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
@@ -4911,7 +4912,7 @@ __metadata:
     jest-image-snapshot: "npm:^6.5.2"
     prettier: "npm:^3.6.2"
     react: "npm:^19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-windows: "npm:^0.0.0-canary.1058"
     react-test-renderer: "npm:19.1.0"
     sanitize-filename: "npm:^1.6.3"
@@ -4927,7 +4928,7 @@ __metadata:
     "@babel/eslint-parser": "npm:^7.25.1"
     "@jest/globals": "npm:^29.7.0"
     "@microsoft/eslint-plugin-sdl": "npm:^0.2.0"
-    "@react-native/eslint-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/eslint-config": "npm:0.86.0-nightly-20260310-621592d1f"
     eslint: "npm:^8.19.0"
     eslint-config-prettier: "npm:^8.5.0"
     eslint-plugin-ft-flow: "npm:^2.0.1"
@@ -5005,7 +5006,7 @@ __metadata:
     "@babel/core": "npm:^7.25.2"
     "@babel/preset-env": "npm:^7.25.3"
     "@babel/preset-typescript": "npm:^7.8.3"
-    "@react-native-community/template": "npm:0.84.1"
+    "@react-native-community/template": "npm:0.85.3"
     "@react-native-windows/find-repo-root": "npm:^0.0.0-canary.101"
     "@react-native-windows/fs": "npm:^0.0.0-canary.72"
     "@react-native-windows/package-utils": "npm:^0.0.0-canary.98"
@@ -5030,7 +5031,7 @@ __metadata:
     ora: "npm:^3.4.0"
     prettier: "npm:^3.6.2"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "npm:0.0.0-canary.1023"
     semver: "npm:^7.6.3"
     source-map-support: "npm:^0.5.19"
@@ -5151,7 +5152,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@rnw-scripts/metro-dev-config@workspace:packages/@rnw-scripts/metro-dev-config"
   dependencies:
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/just-task": "npm:2.3.58"
     "@rnx-kit/metro-config": "npm:^2.2.3"
@@ -5162,7 +5163,7 @@ __metadata:
     eslint: "npm:^8.19.0"
     prettier: "npm:^3.6.2"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     typescript: "npm:5.0.4"
   peerDependencies:
     react: 19.2.3
@@ -5179,8 +5180,8 @@ __metadata:
     "@react-native-community/cli": "npm:20.0.0"
     "@react-native-picker/picker": "npm:2.11.0"
     "@react-native-windows/tester": "npm:0.0.1"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/just-task": "npm:2.3.58"
@@ -5196,7 +5197,7 @@ __metadata:
     just-scripts: "npm:^1.3.3"
     prettier: "npm:^3.6.2"
     react: "npm:^19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-windows: "npm:^0.0.0-canary.1058"
     react-test-renderer: "npm:19.1.0"
     typescript: "npm:5.0.4"
@@ -5264,8 +5265,8 @@ __metadata:
     "@babel/runtime": "npm:^7.20.0"
     "@jest/globals": "npm:^29.7.0"
     "@react-native-community/cli": "npm:20.0.0"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
     "@react-native/new-app-screen": "npm:0.82.0-nightly-20250821-0ef21bf8a"
     "@rnw-scripts/babel-node-config": "npm:2.3.3"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
@@ -5284,7 +5285,7 @@ __metadata:
     just-scripts: "npm:^1.3.3"
     prettier: "npm:^3.6.2"
     react: "npm:^19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-windows: "npm:^0.0.0-canary.1058"
     react-test-renderer: "npm:19.1.0"
     typescript: "npm:5.0.4"
@@ -5301,8 +5302,8 @@ __metadata:
     "@babel/preset-typescript": "npm:^7.8.3"
     "@babel/runtime": "npm:^7.20.0"
     "@react-native-community/cli": "npm:20.0.0"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-node-config": "npm:2.3.3"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
@@ -5320,7 +5321,7 @@ __metadata:
     minimatch: "npm:^10.0.3"
     prettier: "npm:^3.6.2"
     react: "npm:^19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-windows: "npm:^0.0.0-canary.1058"
     typescript: "npm:5.0.4"
   languageName: unknown
@@ -16324,7 +16325,7 @@ __metadata:
     prettier: "npm:^3.6.2"
     prompts: "npm:^2.4.1"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     semver: "npm:^7.3.2"
     source-map-support: "npm:^0.5.19"
     typescript: "npm:5.0.4"
@@ -16357,7 +16358,7 @@ __metadata:
     prettier: "npm:^3.6.2"
     prettier-plugin-hermes-parser: "npm:0.21.1"
     react: "npm:19.2.3"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "workspace:*"
     typescript: "npm:5.0.4"
   languageName: unknown
@@ -16378,16 +16379,16 @@ __metadata:
     "@react-native-windows/codegen": "npm:0.0.0-canary.133"
     "@react-native-windows/find-dotnet-tools": "npm:0.0.0-canary.2"
     "@react-native/assets": "npm:1.0.0"
-    "@react-native/assets-registry": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/codegen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/community-cli-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/gradle-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/jest-preset": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/js-polyfills": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/metro-config": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/new-app-screen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/normalize-colors": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/virtualized-lists": "npm:0.85.0-nightly-20260303-c26dbe286"
+    "@react-native/assets-registry": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/codegen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/community-cli-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/gradle-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/jest-preset": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/js-polyfills": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/metro-config": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/new-app-screen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/normalize-colors": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/virtualized-lists": "npm:0.86.0-nightly-20260310-621592d1f"
     "@rnw-scripts/babel-react-native-config": "npm:0.0.0"
     "@rnw-scripts/eslint-config": "npm:1.2.38"
     "@rnw-scripts/jest-out-of-tree-snapshot-resolver": "npm:^1.1.42"
@@ -16424,7 +16425,7 @@ __metadata:
     promise: "npm:^8.3.0"
     react: "npm:19.2.3"
     react-devtools-core: "npm:^6.1.5"
-    react-native: "npm:0.85.0-nightly-20260303-c26dbe286"
+    react-native: "npm:0.86.0-nightly-20260310-621592d1f"
     react-native-platform-override: "npm:0.0.0-canary.1023"
     react-refresh: "npm:^0.14.0"
     regenerator-runtime: "npm:^0.13.2"
@@ -16438,24 +16439,24 @@ __metadata:
     ws: "npm:^7.5.10"
     yargs: "npm:^17.6.2"
   peerDependencies:
-    "@react-native/jest-preset": 0.85.0-nightly-20260303-c26dbe286
+    "@react-native/jest-preset": 0.86.0-nightly-20260310-621592d1f
     "@types/react": ^19.1.1
     react: ^19.2.3
-    react-native: 0.85.0-nightly-20260303-c26dbe286
+    react-native: 0.86.0-nightly-20260310-621592d1f
   languageName: unknown
   linkType: soft
 
-"react-native@npm:0.85.0-nightly-20260303-c26dbe286":
-  version: 0.85.0-nightly-20260303-c26dbe286
-  resolution: "react-native@npm:0.85.0-nightly-20260303-c26dbe286"
-  dependencies:
-    "@react-native/assets-registry": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/codegen": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/community-cli-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/gradle-plugin": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/js-polyfills": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/normalize-colors": "npm:0.85.0-nightly-20260303-c26dbe286"
-    "@react-native/virtualized-lists": "npm:0.85.0-nightly-20260303-c26dbe286"
+"react-native@npm:0.86.0-nightly-20260310-621592d1f":
+  version: 0.86.0-nightly-20260310-621592d1f
+  resolution: "react-native@npm:0.86.0-nightly-20260310-621592d1f::__archiveUrl=https%3A%2F%2Fms-feed-2.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2Freact-native%2F-%2Freact-native-0.86.0-nightly-20260310-621592d1f.tgz"
+  dependencies:
+    "@react-native/assets-registry": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/codegen": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/community-cli-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/gradle-plugin": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/js-polyfills": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/normalize-colors": "npm:0.86.0-nightly-20260310-621592d1f"
+    "@react-native/virtualized-lists": "npm:0.86.0-nightly-20260310-621592d1f"
     abort-controller: "npm:^3.0.0"
     anser: "npm:^1.4.9"
     ansi-regex: "npm:^5.0.0"
@@ -16482,7 +16483,7 @@ __metadata:
     ws: "npm:^7.5.10"
     yargs: "npm:^17.6.2"
   peerDependencies:
-    "@react-native/jest-preset": 0.85.0-nightly-20260303-c26dbe286
+    "@react-native/jest-preset": 0.86.0-nightly-20260310-621592d1f
     "@types/react": ^19.1.1
     react: ^19.2.3
   peerDependenciesMeta:
@@ -16492,7 +16493,7 @@ __metadata:
       optional: true
   bin:
     react-native: cli.js
-  checksum: 10c0/8f6b07885072c5b12b67abd472be22d9e36af4dfd96f7714ae709d959d987e1f0219f446ae9fb9d711c2e2faa13a66c9edea807d22f76c87654321ffedb9aeb8
+  checksum: 10c0/8ad66149f52d5a3bcc4138f793027885694ba99d6c3a810c2c727bfa8c4755c55fc5f9a3bae711a2237eb28204583fb9b27608b0284ff2f53212dc3406d2f4e2
   languageName: node
   linkType: hard
 

From dd94bfb900b9355a0477f3d1e4daf7d1bed887b7 Mon Sep 17 00:00:00 2001
From: Anukrati Agrawal <anuagra@microsoft.com>
Date: Wed, 12 Aug 2026 08:10:26 -0700
Subject: [PATCH 2/2] Complete RN 0.86 March 10 nightly integration

Resolve platform override conflicts, synchronize RNTester examples, update Flow dependencies, and adapt native project inputs to upstream TurboModule changes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 55c9e65e-9e4d-4c6d-bdd5-dc457a51948d
---
 ...-851c2fb9-e545-430b-bbf9-bcc1431006f0.json |   7 +
 ...-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json |   7 +
 ...-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json |   7 +
 ...-33791a23-ae76-4ba0-bf50-49a940d870e8.json |   7 +
 ...-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json |   7 +
 ...-53ef3775-da45-4571-b19b-dc779c19e5cc.json |   7 +
 .../react-native-win32/package.json           |   2 +-
 .../Libraries/Components/View/View.win32.js   | 103 ---------------
 .../js/examples/Image/ImageExample.windows.js |  32 +----
 .../js/examples/Text/TextExample.windows.js   |  48 +------
 .../Text/TextSharedExamples.windows.js        |   7 +-
 .../ActivityIndicatorExample.js               |   2 +
 .../tester/js/examples/Alert/AlertExample.js  |   2 +
 .../examples/Appearance/AppearanceExample.js  |   2 +
 .../js/examples/BoxShadow/BoxShadowExample.js |  37 ++++--
 .../js/examples/Button/ButtonExample.js       |   5 +
 .../js/examples/Filter/FilterExample.js       |  39 +++++-
 .../tester/js/examples/Image/ImageExample.js  |  26 +++-
 .../js/examples/Pressable/PressableExample.js |   4 +
 .../js/examples/Text/TextExample.android.js   |  54 ++++----
 .../js/examples/Text/TextExample.ios.js       |  64 ++++++---
 .../js/examples/Text/TextSharedExamples.js    |  12 +-
 .../js/examples/Touchable/TouchableExample.js |   6 +-
 .../js/examples/Transform/TransformExample.js |  48 +++++--
 .../TurboModule/TurboCxxModuleExample.js      |  29 +++++
 .../Microsoft.ReactNative.vcxproj             |   1 +
 .../defaults/DefaultTurboModules.cpp          |  68 ++++++++++
 vnext/Shared/Shared.vcxitems                  |   4 +
 vnext/package.json                            |   2 +-
 .../Libraries/Components/View/View.windows.js | 121 +++++-------------
 .../NativeComponent/BaseViewConfig.windows.js |   1 -
 .../ViewConfigIgnore.windows.js               |  13 --
 yarn.lock                                     |  14 +-
 33 files changed, 412 insertions(+), 376 deletions(-)
 create mode 100644 change/@office-iss-react-native-win32-851c2fb9-e545-430b-bbf9-bcc1431006f0.json
 create mode 100644 change/@react-native-windows-automation-channel-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json
 create mode 100644 change/@react-native-windows-cli-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json
 create mode 100644 change/@react-native-windows-perf-testing-33791a23-ae76-4ba0-bf50-49a940d870e8.json
 create mode 100644 change/react-native-windows-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json
 create mode 100644 change/react-native-windows-init-53ef3775-da45-4571-b19b-dc779c19e5cc.json
 create mode 100644 packages/@react-native/tester/js/examples/TurboModule/TurboCxxModuleExample.js
 create mode 100644 vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp

diff --git a/change/@office-iss-react-native-win32-851c2fb9-e545-430b-bbf9-bcc1431006f0.json b/change/@office-iss-react-native-win32-851c2fb9-e545-430b-bbf9-bcc1431006f0.json
new file mode 100644
index 00000000000..df06d7c55d8
--- /dev/null
+++ b/change/@office-iss-react-native-win32-851c2fb9-e545-430b-bbf9-bcc1431006f0.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "@office-iss/react-native-win32",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/change/@react-native-windows-automation-channel-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json b/change/@react-native-windows-automation-channel-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json
new file mode 100644
index 00000000000..15cedf494da
--- /dev/null
+++ b/change/@react-native-windows-automation-channel-58609dc1-dbb5-4bbe-9521-41be4bf14e9c.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "@react-native-windows/automation-channel",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/change/@react-native-windows-cli-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json b/change/@react-native-windows-cli-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json
new file mode 100644
index 00000000000..d248c5ee244
--- /dev/null
+++ b/change/@react-native-windows-cli-66f8bb72-2223-4893-8a6a-2ab820ac0e0f.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "@react-native-windows/cli",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/change/@react-native-windows-perf-testing-33791a23-ae76-4ba0-bf50-49a940d870e8.json b/change/@react-native-windows-perf-testing-33791a23-ae76-4ba0-bf50-49a940d870e8.json
new file mode 100644
index 00000000000..85019c532f0
--- /dev/null
+++ b/change/@react-native-windows-perf-testing-33791a23-ae76-4ba0-bf50-49a940d870e8.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "@react-native-windows/perf-testing",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json b/change/react-native-windows-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json
new file mode 100644
index 00000000000..ed81b2b56f3
--- /dev/null
+++ b/change/react-native-windows-425fdab2-f5eb-4834-8a89-ee086d4bbcc2.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "react-native-windows",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/change/react-native-windows-init-53ef3775-da45-4571-b19b-dc779c19e5cc.json b/change/react-native-windows-init-53ef3775-da45-4571-b19b-dc779c19e5cc.json
new file mode 100644
index 00000000000..d3e1afc50d7
--- /dev/null
+++ b/change/react-native-windows-init-53ef3775-da45-4571-b19b-dc779c19e5cc.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Integrate React Native 0.86.0-nightly-20260310-621592d1f",
+  "packageName": "react-native-windows-init",
+  "email": "email not defined",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/@office-iss/react-native-win32/package.json b/packages/@office-iss/react-native-win32/package.json
index 291cbcd47ee..82edf52bb97 100644
--- a/packages/@office-iss/react-native-win32/package.json
+++ b/packages/@office-iss/react-native-win32/package.json
@@ -88,7 +88,7 @@
     "@types/prop-types": "15.7.1",
     "@types/react": "^19.2.3",
     "eslint": "^8.19.0",
-    "flow-bin": "^0.303.0",
+    "flow-bin": "^0.304.0",
     "jscodeshift": "^0.14.0",
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
diff --git a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
index 914ac81a422..d881641e46d 100644
--- a/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
+++ b/packages/@office-iss/react-native-win32/src-win/Libraries/Components/View/View.win32.js
@@ -10,12 +10,7 @@
 
 import type {ViewProps} from './ViewPropTypes';
 
-<<<<<<< Upstream
-import * as ReactNativeFeatureFlags from '../../../src/private/featureflags/ReactNativeFeatureFlags';
-import TextAncestorContext from '../../Text/TextAncestorContext';
-=======
 import TextAncestor from '../../Text/TextAncestor';
->>>>>>> Override
 import ViewNativeComponent from './ViewNativeComponent';
 import * as React from 'react';
 import invariant from 'invariant'; // [Windows]
@@ -81,103 +76,6 @@ const View: component(
     const _accessibilityLabelledBy =
       ariaLabelledBy?.split(/\s*,\s*/g) ?? accessibilityLabelledBy;
 
-<<<<<<< Upstream
-  let resolvedProps = props;
-  if (!ReactNativeFeatureFlags.enableNativeViewPropTransformations()) {
-    const {
-      accessibilityState,
-      accessibilityValue,
-      'aria-busy': ariaBusy,
-      'aria-checked': ariaChecked,
-      'aria-disabled': ariaDisabled,
-      'aria-expanded': ariaExpanded,
-      'aria-hidden': ariaHidden,
-      'aria-label': ariaLabel,
-      'aria-labelledby': ariaLabelledBy,
-      'aria-live': ariaLive,
-      'aria-selected': ariaSelected,
-      'aria-valuemax': ariaValueMax,
-      'aria-valuemin': ariaValueMin,
-      'aria-valuenow': ariaValueNow,
-      'aria-valuetext': ariaValueText,
-      id,
-      tabIndex,
-      ...otherProps
-    } = props;
-
-    const processedProps = otherProps as {...ViewProps};
-
-    const parsedAriaLabelledBy = ariaLabelledBy?.split(/\s*,\s*/g);
-    if (parsedAriaLabelledBy !== undefined) {
-      processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
-    }
-
-    if (ariaLabel !== undefined) {
-      processedProps.accessibilityLabel = ariaLabel;
-    }
-
-    if (ariaLive !== undefined) {
-      processedProps.accessibilityLiveRegion =
-        ariaLive === 'off' ? 'none' : ariaLive;
-    }
-
-    if (ariaHidden !== undefined) {
-      processedProps.accessibilityElementsHidden = ariaHidden;
-      if (ariaHidden === true) {
-        processedProps.importantForAccessibility = 'no-hide-descendants';
-      }
-    }
-
-    if (id !== undefined) {
-      processedProps.nativeID = id;
-    }
-
-    if (tabIndex !== undefined) {
-      processedProps.focusable = !tabIndex;
-    }
-
-    if (
-      accessibilityState != null ||
-      ariaBusy != null ||
-      ariaChecked != null ||
-      ariaDisabled != null ||
-      ariaExpanded != null ||
-      ariaSelected != null
-    ) {
-      processedProps.accessibilityState = {
-        busy: ariaBusy ?? accessibilityState?.busy,
-        checked: ariaChecked ?? accessibilityState?.checked,
-        disabled: ariaDisabled ?? accessibilityState?.disabled,
-        expanded: ariaExpanded ?? accessibilityState?.expanded,
-        selected: ariaSelected ?? accessibilityState?.selected,
-      };
-    }
-
-    if (
-      accessibilityValue != null ||
-      ariaValueMax != null ||
-      ariaValueMin != null ||
-      ariaValueNow != null ||
-      ariaValueText != null
-    ) {
-      processedProps.accessibilityValue = {
-        max: ariaValueMax ?? accessibilityValue?.max,
-        min: ariaValueMin ?? accessibilityValue?.min,
-        now: ariaValueNow ?? accessibilityValue?.now,
-        text: ariaValueText ?? accessibilityValue?.text,
-      };
-    }
-
-    resolvedProps = processedProps;
-  }
-
-  const actualView =
-    ref == null ? (
-      <ViewNativeComponent {...resolvedProps} />
-    ) : (
-      <ViewNativeComponent {...resolvedProps} ref={ref} />
-    );
-=======
     const _accessibilityState =
       accessibilityState != null ||
       ariaBusy != null ||
@@ -316,7 +214,6 @@ const View: component(
       });
     };
     // Windows]
->>>>>>> Override
 
     return (
       // [Windows
diff --git a/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
index a78e7ddec99..aae30809742 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Image/ImageExample.windows.js
@@ -1216,11 +1216,7 @@ exports.examples = [
         'required in the same way as JavaScript modules.': string),
     render: function (): React.Node {
       return (
-<<<<<<< Upstream
-        <View testID="image-static" style={styles.horizontal}>
-=======
         <View style={styles.horizontal} testID="image-static" accessible>
->>>>>>> Override
           <Image
             source={require('../../assets/uie_thumb_normal.png')}
             style={styles.icon}
@@ -1507,11 +1503,7 @@ exports.examples = [
     name: 'opacity',
     render: function (): React.Node {
       return (
-<<<<<<< Upstream
-        <View testID="image-opacity" style={styles.horizontal}>
-=======
         <View style={styles.horizontal} testID="image-opacity" accessible>
->>>>>>> Override
           <Image style={[styles.base, styles.opacity1]} source={fullImage} />
           <Image style={[styles.base, styles.opacity2]} source={fullImage} />
           <Image style={[styles.base, styles.opacity3]} source={fullImage} />
@@ -1527,11 +1519,10 @@ exports.examples = [
     name: 'nesting-content',
     render: function (): React.Node {
       return (
-<<<<<<< Upstream
-        <View testID="image-nesting-content" style={styles.base}>
-=======
-        <View style={styles.base} testID="image-nested" accessible>
->>>>>>> Override
+        <View
+          style={styles.base}
+          testID="image-nesting-content"
+          accessible>
           <Image style={{...StyleSheet.absoluteFill}} source={fullImage} />
           <Text style={styles.nestedText}>React</Text>
         </View>
@@ -1559,11 +1550,7 @@ exports.examples = [
       'pixels to the tint color.': string),
     render: function (): React.Node {
       return (
-<<<<<<< Upstream
-        <View testID="image-tint-color">
-=======
         <View testID="image-tint-color" accessible>
->>>>>>> Override
           <View style={styles.horizontal}>
             <Image
               source={require('../../assets/uie_thumb_normal.png')}
@@ -1866,7 +1853,6 @@ exports.examples = [
     render: function (): React.Node {
       return (
         <Image
-          testID="image-animated-gif"
           style={styles.gif}
           source={require('../../assets/tumblr_mfqekpMktw1rn90umo1_500.gif')}
           testID="image-animated-gif"
@@ -1882,11 +1868,6 @@ exports.examples = [
     render: function (): React.Node {
       return (
         <Image
-<<<<<<< Upstream
-          testID="image-base64"
-          style={styles.base64}
-          source={{uri: base64Icon, scale: 3}}
-=======
           style={styles.base64}
           source={{uri: base64Icon, scale: 3}}
           testID="image-base64"
@@ -1904,7 +1885,6 @@ exports.examples = [
           source={{uri: dataImageSvg, width: 48, height: 48}}
           testID="image-datasvg"
           accessible
->>>>>>> Override
         />
       );
     },
@@ -1987,11 +1967,7 @@ exports.examples = [
     name: 'blur-radius',
     render: function (): React.Node {
       return (
-<<<<<<< Upstream
-        <View testID="image-blur-radius" style={styles.horizontal}>
-=======
         <View style={styles.horizontal} testID="image-blur-radius" accessible>
->>>>>>> Override
           <Image style={styles.base} source={fullImage} blurRadius={0} />
           <Image style={styles.base} source={fullImage} blurRadius={5} />
           <Image style={styles.base} source={fullImage} blurRadius={10} />
diff --git a/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js b/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
index 9cda0055f61..004d5b6c0c6 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Text/TextExample.windows.js
@@ -365,11 +365,7 @@ function IncludeFontPaddingExample(props: {}): React.Node {
 
 function FontVariantsExample(props: {}): React.Node {
   return (
-<<<<<<< Upstream
     <View testID="text-font-variants">
-=======
-    <View testID={'font-variants'}>
->>>>>>> Override
       <RNTesterText style={{fontVariant: ['small-caps']}}>
         Small Caps{'\n'}
       </RNTesterText>
@@ -632,11 +628,7 @@ function FontWeightExample(props: {}): React.Node {
 
 function BackgroundColorExample(props: {}): React.Node {
   return (
-<<<<<<< Upstream
     <View testID="text-bg-color-attr">
-=======
-    <View testID={'text-background-color'}>
->>>>>>> Override
       <RNTesterText style={{backgroundColor: '#ffaaaa'}}>
         Red background,
         <RNTesterText style={{backgroundColor: '#aaaaff'}}>
@@ -688,15 +680,10 @@ function ContainerBackgroundColorExample(props: {}): React.Node {
 
 function TextDecorationExample(props: {}): React.Node {
   return (
-<<<<<<< Upstream
     <View testID="text-text-decoration">
-      <RNTesterText style={{textDecorationLine: 'underline'}}>
-=======
-    <>
       <RNTesterText
         style={{textDecorationLine: 'underline'}}
-        testID={'text-decoration-underline'}>
->>>>>>> Override
+        testID="text-decoration-underline">
         Solid underline
       </RNTesterText>
       <RNTesterText style={{textDecorationLine: 'none'}}>
@@ -730,15 +717,10 @@ function TextDecorationExample(props: {}): React.Node {
 
 function NestedExample(props: {}): React.Node {
   return (
-<<<<<<< Upstream
     <View testID="text-test-nested">
-      <RNTesterText onPress={() => console.log('1st')}>
-=======
-    <>
       <RNTesterText
         onPress={() => console.log('1st')}
-        testID={'text-outer-color'}>
->>>>>>> Override
+        testID="text-outer-color">
         (Normal text,
         <Text style={{color: 'red', fontWeight: 'bold'}}>
           (R)red
@@ -1102,11 +1084,7 @@ function LineHeightExample(props: {}): React.Node {
 function LetterSpacingExample(props: {}): React.Node {
   return (
     <>
-<<<<<<< Upstream
       <View testID="text-letter-spacing">
-=======
-      <View testID={'text-letter-spacing'}>
->>>>>>> Override
         <RNTesterText style={{letterSpacing: 0}}>
           letterSpacing = 0
         </RNTesterText>
@@ -1529,11 +1507,7 @@ const examples = [
     name: 'wrap',
     render(): React.Node {
       return (
-<<<<<<< Upstream
         <RNTesterText testID="text-wrap" style={styles.wrappedText}>
-=======
-        <RNTesterText style={styles.wrappedText} testID={'text-wrap'}>
->>>>>>> Override
           The text should wrap if it goes on multiple lines. See, this is going
           to the next line.
         </RNTesterText>
@@ -1552,11 +1526,7 @@ const examples = [
     name: 'padding',
     render(): React.Node {
       return (
-<<<<<<< Upstream
         <RNTesterText testID="text-padding" style={{padding: 10}}>
-=======
-        <RNTesterText style={{padding: 10}} testID={'text-padding'}>
->>>>>>> Override
           This text is indented by 10px padding on all sides.
         </RNTesterText>
       );
@@ -1595,15 +1565,10 @@ const examples = [
     name: 'fontSize',
     render(): React.Node {
       return (
-<<<<<<< Upstream
         <View testID="text-font-size">
-          <RNTesterText style={{fontSize: 23}}>Size 23</RNTesterText>
-=======
-        <>
-          <RNTesterText style={{fontSize: 23}} testID={'text-size'}>
+          <RNTesterText style={{fontSize: 23}} testID="text-size">
             Size 23
           </RNTesterText>
->>>>>>> Override
           <RNTesterText style={{fontSize: 8}}>Size 8</RNTesterText>
         </View>
       );
@@ -1614,15 +1579,10 @@ const examples = [
     name: 'color',
     render(): React.Node {
       return (
-<<<<<<< Upstream
         <View testID="text-test-color">
-          <Text style={{color: 'red'}}>Red color</Text>
-=======
-        <>
-          <Text style={{color: 'red'}} testID={'text-color'}>
+          <Text style={{color: 'red'}} testID="text-color">
             Red color
           </Text>
->>>>>>> Override
           <Text style={{color: 'blue'}}>Blue color</Text>
         </View>
       );
diff --git a/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js b/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
index 96adf343561..afbacf3ed0b 100644
--- a/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
+++ b/packages/@react-native-windows/tester/src/js/examples/Text/TextSharedExamples.windows.js
@@ -197,15 +197,10 @@ function RtlAndInlineViewsExample(): React.Node {
   );
 }
 
-<<<<<<< Upstream
-component TextWithLinkRoleExample() {
+function TextWithLinkRoleExample(): React.Node {
   const [pressed, setPressed] = useState(false);
   const handlePress = () => setPressed(true);
   const linkColor = pressed ? 'red' : 'teal';
-=======
-function TextWithLinkRoleExample(): React.Node {
-  const handlePress = () => console.log('Link Press');
->>>>>>> Override
 
   return (
     <View testID="text-with-link-role">
diff --git a/packages/@react-native/tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js b/packages/@react-native/tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js
index 793ce3fec6c..cdf3072cddd 100644
--- a/packages/@react-native/tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js
+++ b/packages/@react-native/tester/js/examples/ActivityIndicator/ActivityIndicatorExample.js
@@ -69,6 +69,7 @@ exports.description = 'Animated loading indicators.';
 exports.examples = [
   {
     title: 'Default (small, white)',
+    name: 'default',
     render(): Node {
       return (
         <ActivityIndicator
@@ -93,6 +94,7 @@ exports.examples = [
   },
   {
     title: 'Custom colors',
+    name: 'custom-colors',
     render(): Node {
       return (
         <View style={styles.horizontal}>
diff --git a/packages/@react-native/tester/js/examples/Alert/AlertExample.js b/packages/@react-native/tester/js/examples/Alert/AlertExample.js
index 706982325a0..70c5ccf86a8 100644
--- a/packages/@react-native/tester/js/examples/Alert/AlertExample.js
+++ b/packages/@react-native/tester/js/examples/Alert/AlertExample.js
@@ -379,6 +379,7 @@ const styles = StyleSheet.create({
 export const examples = [
   {
     title: 'Alert with default Button',
+    name: 'default-button',
     description:
       "It can be used to show some information to user that doesn't require an action.",
     render(): React.Node {
@@ -394,6 +395,7 @@ export const examples = [
   },
   {
     title: 'Alert with three Buttons',
+    name: 'three-buttons',
     description: 'It can be used when there are three possible actions',
     render(): React.Node {
       return <AlertWithThreeButtons />;
diff --git a/packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js b/packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js
index c95d77150ec..7285806793a 100644
--- a/packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js
+++ b/packages/@react-native/tester/js/examples/Appearance/AppearanceExample.js
@@ -200,6 +200,7 @@ exports.examples = [
   },
   {
     title: 'Context forced to light theme',
+    name: 'forced-light',
     render(): React.MixedElement {
       return (
         <RNTesterThemeContext.Provider value={themes.light}>
@@ -214,6 +215,7 @@ exports.examples = [
   },
   {
     title: 'Context forced to dark theme',
+    name: 'forced-dark',
     render(): React.MixedElement {
       return (
         <RNTesterThemeContext.Provider value={themes.dark}>
diff --git a/packages/@react-native/tester/js/examples/BoxShadow/BoxShadowExample.js b/packages/@react-native/tester/js/examples/BoxShadow/BoxShadowExample.js
index 9a69c6b6d25..bab2e19ba49 100644
--- a/packages/@react-native/tester/js/examples/BoxShadow/BoxShadowExample.js
+++ b/packages/@react-native/tester/js/examples/BoxShadow/BoxShadowExample.js
@@ -79,44 +79,65 @@ exports.description =
 exports.examples = [
   {
     title: 'Basic shadow',
+    name: 'basic-shadow',
     description: 'shadowOpacity: 0.5, shadowOffset: {2, 2}',
     render(): React.Node {
-      return <View style={[styles.box, styles.shadow1]} />;
+      return (
+        <View testID="box-shadow-basic" style={[styles.box, styles.shadow1]} />
+      );
     },
   },
   {
     title: 'Colored shadow',
+    name: 'colored-shadow',
     description: "shadowColor: 'red', shadowRadius: 0",
     render(): React.Node {
-      return <View style={[styles.box, styles.shadow2]} />;
+      return (
+        <View
+          testID="box-shadow-colored"
+          style={[styles.box, styles.shadow2]}
+        />
+      );
     },
   },
   {
     title: 'Shaped shadow',
+    name: 'shaped-shadow',
     description: 'borderRadius: 50',
     render(): React.Node {
-      return <View style={[styles.box, styles.shadow1, styles.shadowShaped]} />;
+      return (
+        <View
+          testID="box-shadow-shaped"
+          style={[styles.box, styles.shadow1, styles.shadowShaped]}
+        />
+      );
     },
   },
   {
     title: 'Image shadow',
+    name: 'image-shadow',
     description: 'Image shadows are derived exactly from the pixels.',
     render(): React.Node {
       return (
-        <Image
-          source={require('../../assets/hawk.png')}
-          style={[styles.box, styles.shadow1, styles.shadowImage]}
-        />
+        <View testID="box-shadow-image">
+          <Image
+            source={require('../../assets/hawk.png')}
+            style={[styles.box, styles.shadow1, styles.shadowImage]}
+          />
+        </View>
       );
     },
   },
   {
     title: 'Child shadow',
+    name: 'child-shadow',
     description:
       'For views without an opaque background color, shadow will be derived from the subviews.',
     render(): React.Node {
       return (
-        <View style={[styles.box, styles.shadow1, styles.shadowChild]}>
+        <View
+          testID="box-shadow-child"
+          style={[styles.box, styles.shadow1, styles.shadowChild]}>
           <View style={[styles.box, styles.shadowChildBox]} />
         </View>
       );
diff --git a/packages/@react-native/tester/js/examples/Button/ButtonExample.js b/packages/@react-native/tester/js/examples/Button/ButtonExample.js
index cbedc3f8f11..55409a8a126 100644
--- a/packages/@react-native/tester/js/examples/Button/ButtonExample.js
+++ b/packages/@react-native/tester/js/examples/Button/ButtonExample.js
@@ -30,6 +30,7 @@ exports.description = 'Simple React Native button component.';
 exports.examples = [
   {
     title: 'Button with default styling',
+    name: 'default-styling',
     render: function (): React.Node {
       return (
         <Button
@@ -43,6 +44,7 @@ exports.examples = [
   },
   {
     title: 'Button with color="red"',
+    name: 'color-red',
     description:
       ('Note: On iOS, the color prop controls the color of the text. On ' +
         'Android, the color adjusts the background color of the button.': string),
@@ -66,6 +68,7 @@ exports.examples = [
   },
   {
     title: 'Two Buttons with Flexbox layout',
+    name: 'two-buttons-flexbox',
     description:
       ('Two buttons wrapped inside view with justifyContent: spaceBetween,' +
         'This layout strategy lets the title define the width of the button': string),
@@ -98,6 +101,7 @@ exports.examples = [
   },
   {
     title: 'Three Buttons with Flexbox layout',
+    name: 'three-buttons-flexbox',
     render: function (): React.Node {
       return (
         <RNTesterThemeContext.Consumer>
@@ -134,6 +138,7 @@ exports.examples = [
   },
   {
     title: 'Button with disabled={true}',
+    name: 'disabled',
     description:
       'By passing disabled={true} all interactions for the button are disabled.',
     render: function (): React.Node {
diff --git a/packages/@react-native/tester/js/examples/Filter/FilterExample.js b/packages/@react-native/tester/js/examples/Filter/FilterExample.js
index 8df9767911d..eaf79412199 100644
--- a/packages/@react-native/tester/js/examples/Filter/FilterExample.js
+++ b/packages/@react-native/tester/js/examples/Filter/FilterExample.js
@@ -135,7 +135,10 @@ exports.examples = [
     name: 'opacity',
     render(): React.Node {
       return (
-        <StaticViewAndImageComparison style={{filter: [{opacity: 0.5}]}} />
+        <StaticViewAndImageComparison
+          style={{filter: [{opacity: 0.5}]}}
+          testID="filter-test-opacity"
+        />
       );
     },
   },
@@ -145,7 +148,10 @@ exports.examples = [
     name: 'contrast',
     render(): React.Node {
       return (
-        <StaticViewAndImageComparison style={{filter: [{contrast: 0.5}]}} />
+        <StaticViewAndImageComparison
+          style={{filter: [{contrast: 0.5}]}}
+          testID="filter-test-contrast"
+        />
       );
     },
   },
@@ -155,7 +161,12 @@ exports.examples = [
     name: 'sepia',
     platform: 'android',
     render(): React.Node {
-      return <StaticViewAndImageComparison style={{filter: [{sepia: 0.5}]}} />;
+      return (
+        <StaticViewAndImageComparison
+          style={{filter: [{sepia: 0.5}]}}
+          testID="filter-test-sepia"
+        />
+      );
     },
   },
   {
@@ -164,7 +175,10 @@ exports.examples = [
     name: 'grayscale',
     render(): React.Node {
       return (
-        <StaticViewAndImageComparison style={{filter: [{grayscale: 0.5}]}} />
+        <StaticViewAndImageComparison
+          style={{filter: [{grayscale: 0.5}]}}
+          testID="filter-test-grayscale"
+        />
       );
     },
   },
@@ -173,7 +187,12 @@ exports.examples = [
     description: 'saturate(4)',
     name: 'saturate',
     render(): React.Node {
-      return <StaticViewAndImageComparison style={{filter: [{saturate: 4}]}} />;
+      return (
+        <StaticViewAndImageComparison
+          style={{filter: [{saturate: 4}]}}
+          testID="filter-test-saturate"
+        />
+      );
     },
   },
   {
@@ -184,6 +203,7 @@ exports.examples = [
       return (
         <StaticViewAndImageComparison
           style={{filter: [{hueRotate: '-90deg'}]}}
+          testID="filter-test-hue-rotate"
         />
       );
     },
@@ -194,7 +214,12 @@ exports.examples = [
     name: 'invert',
     platform: 'android',
     render(): React.Node {
-      return <StaticViewAndImageComparison style={{filter: [{invert: 0.7}]}} />;
+      return (
+        <StaticViewAndImageComparison
+          style={{filter: [{invert: 0.7}]}}
+          testID="filter-test-invert"
+        />
+      );
     },
   },
   {
@@ -302,8 +327,10 @@ const AnimatedBlurExample = () => {
       <Button
         onPress={onPress}
         title={isBlurred ? 'Remove Blur' : 'Animate Blur'}
+        testID="animated-blur-button"
       />
       <Animated.View
+        testID="animated-blur-view"
         style={[
           {
             filter: [{blur: animatedValue}],
diff --git a/packages/@react-native/tester/js/examples/Image/ImageExample.js b/packages/@react-native/tester/js/examples/Image/ImageExample.js
index d403a35dbed..3d54cbd1cca 100644
--- a/packages/@react-native/tester/js/examples/Image/ImageExample.js
+++ b/packages/@react-native/tester/js/examples/Image/ImageExample.js
@@ -959,12 +959,13 @@ exports.examples = [
   },
   {
     title: 'Plain Static Image',
+    name: 'static-image',
     description:
       ('Static assets should be placed in the source code tree, and ' +
         'required in the same way as JavaScript modules.': string),
     render: function (): React.Node {
       return (
-        <View style={styles.horizontal}>
+        <View testID="image-static" style={styles.horizontal}>
           <Image
             source={require('../../assets/uie_thumb_normal.png')}
             style={styles.icon}
@@ -1173,9 +1174,10 @@ exports.examples = [
   },
   {
     title: 'Opacity',
+    name: 'opacity',
     render: function (): React.Node {
       return (
-        <View style={styles.horizontal}>
+        <View testID="image-opacity" style={styles.horizontal}>
           <Image style={[styles.base, styles.opacity1]} source={fullImage} />
           <Image style={[styles.base, styles.opacity2]} source={fullImage} />
           <Image style={[styles.base, styles.opacity3]} source={fullImage} />
@@ -1188,9 +1190,10 @@ exports.examples = [
   },
   {
     title: 'Nesting content inside <Image> component',
+    name: 'nesting-content',
     render: function (): React.Node {
       return (
-        <View style={styles.base}>
+        <View testID="image-nesting-content" style={styles.base}>
           <Image style={{...StyleSheet.absoluteFill}} source={fullImage} />
           <Text style={styles.nestedText}>React</Text>
         </View>
@@ -1199,9 +1202,11 @@ exports.examples = [
   },
   {
     title: 'Nesting content inside <ImageBackground> component',
+    name: 'nesting-image-background',
     render: function (): React.Node {
       return (
         <ImageBackground
+          testID="image-nesting-background"
           style={styles.transparentImageBackground}
           source={fullImage}>
           <Text style={styles.nestedText}>React</Text>
@@ -1211,11 +1216,12 @@ exports.examples = [
   },
   {
     title: 'Tint Color',
+    name: 'tint-color',
     description: ('The `tintColor` prop changes all the non-alpha ' +
       'pixels to the tint color.': string),
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="image-tint-color">
           <View style={styles.horizontal}>
             <Image
               source={require('../../assets/uie_thumb_normal.png')}
@@ -1514,9 +1520,11 @@ exports.examples = [
   },
   {
     title: 'Animated GIF',
+    name: 'animated-gif',
     render: function (): React.Node {
       return (
         <Image
+          testID="image-animated-gif"
           style={styles.gif}
           source={require('../../assets/tumblr_mfqekpMktw1rn90umo1_500.gif')}
         />
@@ -1526,9 +1534,14 @@ exports.examples = [
   },
   {
     title: 'Base64 image',
+    name: 'base64-image',
     render: function (): React.Node {
       return (
-        <Image style={styles.base64} source={{uri: base64Icon, scale: 3}} />
+        <Image
+          testID="image-base64"
+          style={styles.base64}
+          source={{uri: base64Icon, scale: 3}}
+        />
       );
     },
     platform: 'ios',
@@ -1599,9 +1612,10 @@ exports.examples = [
   },
   {
     title: 'Blur Radius',
+    name: 'blur-radius',
     render: function (): React.Node {
       return (
-        <View style={styles.horizontal}>
+        <View testID="image-blur-radius" style={styles.horizontal}>
           <Image style={styles.base} source={fullImage} blurRadius={0} />
           <Image style={styles.base} source={fullImage} blurRadius={5} />
           <Image style={styles.base} source={fullImage} blurRadius={10} />
diff --git a/packages/@react-native/tester/js/examples/Pressable/PressableExample.js b/packages/@react-native/tester/js/examples/Pressable/PressableExample.js
index 648fe4d5e6b..a81d4147c46 100644
--- a/packages/@react-native/tester/js/examples/Pressable/PressableExample.js
+++ b/packages/@react-native/tester/js/examples/Pressable/PressableExample.js
@@ -348,6 +348,7 @@ const styles = StyleSheet.create({
 const examples = [
   {
     title: 'Change content based on Press',
+    name: 'content-press',
     render(): React.Node {
       return <ContentPress />;
     },
@@ -399,6 +400,7 @@ const examples = [
   },
   {
     title: 'Pressable feedback events',
+    name: 'feedback-events',
     description: ('<Pressable> components accept onPress, onPressIn, ' +
       'onPressOut, and onLongPress as props.': string),
     render: function (): React.Node {
@@ -512,6 +514,7 @@ const examples = [
   },
   {
     title: '<Text onPress={fn}> with highlight',
+    name: 'text-press',
     render: function (): React.Node {
       return <TextOnPressBox />;
     },
@@ -536,6 +539,7 @@ const examples = [
   },
   {
     title: 'Pressable Hit Slop',
+    name: 'hit-slop',
     description:
       ('<Pressable> components accept hitSlop prop which extends the touch area ' +
         'without changing the view bounds.': string),
diff --git a/packages/@react-native/tester/js/examples/Text/TextExample.android.js b/packages/@react-native/tester/js/examples/Text/TextExample.android.js
index 810778e2a02..b46af771747 100644
--- a/packages/@react-native/tester/js/examples/Text/TextExample.android.js
+++ b/packages/@react-native/tester/js/examples/Text/TextExample.android.js
@@ -361,7 +361,7 @@ function IncludeFontPaddingExample(props: {}): React.Node {
 
 function FontVariantsExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-font-variants">
       <RNTesterText style={{fontVariant: ['small-caps']}}>
         Small Caps{'\n'}
       </RNTesterText>
@@ -399,13 +399,13 @@ function FontVariantsExample(props: {}): React.Node {
         }}>
         Stylistic & and $
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function EllipsizeModeExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-ellipsize-mode">
       <RNTesterText numberOfLines={1} style={styles.wrappedText}>
         This very long text should be truncated with dots in the end.
       </RNTesterText>
@@ -427,13 +427,13 @@ function EllipsizeModeExample(props: {}): React.Node {
         style={styles.wrappedText}>
         This very long text should be clipped and this will not be visible.
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function FontFamilyExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-font-family">
       <RNTesterText style={{fontFamily: 'sans-serif'}}>Sans-Serif</RNTesterText>
       <RNTesterText style={{fontFamily: 'sans-serif', fontWeight: 'bold'}}>
         Sans-Serif Bold
@@ -449,13 +449,13 @@ function FontFamilyExample(props: {}): React.Node {
       <RNTesterText style={{fontFamily: 'Unknown Font Family'}}>
         Unknown Font Family
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function TextShadowExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-text-shadow">
       <RNTesterText
         style={{
           fontSize: 20,
@@ -465,7 +465,7 @@ function TextShadowExample(props: {}): React.Node {
         }}>
         Demo text shadow
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
@@ -588,7 +588,7 @@ function HyphenationExample(props: {}): React.Node {
 
 function FontWeightExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-font-weight">
       <RNTesterText style={{fontWeight: 'bold'}}>
         Move fast and be bold
       </RNTesterText>
@@ -613,13 +613,13 @@ function FontWeightExample(props: {}): React.Node {
       <RNTesterText style={{fontWeight: 300}}>FONT WEIGHT 300</RNTesterText>
       <RNTesterText style={{fontWeight: 200}}>FONT WEIGHT 200</RNTesterText>
       <RNTesterText style={{fontWeight: 100}}>FONT WEIGHT 100</RNTesterText>
-    </>
+    </View>
   );
 }
 
 function BackgroundColorExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-bg-color-attr">
       <RNTesterText style={{backgroundColor: '#ffaaaa'}}>
         Red background,
         <RNTesterText style={{backgroundColor: '#aaaaff'}}>
@@ -644,7 +644,7 @@ function BackgroundColorExample(props: {}): React.Node {
           </RNTesterText>
         </RNTesterText>
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
@@ -671,7 +671,7 @@ function ContainerBackgroundColorExample(props: {}): React.Node {
 
 function TextDecorationExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-text-decoration">
       <RNTesterText style={{textDecorationLine: 'underline'}}>
         Solid underline
       </RNTesterText>
@@ -699,13 +699,13 @@ function TextDecorationExample(props: {}): React.Node {
         </RNTesterText>{' '}
         text nodes
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
 function NestedExample(props: {}): React.Node {
   return (
-    <>
+    <View testID="text-test-nested">
       <RNTesterText onPress={() => console.log('1st')}>
         (Normal text,
         <Text style={{color: 'red', fontWeight: 'bold'}}>
@@ -807,7 +807,7 @@ function NestedExample(props: {}): React.Node {
         </RNTesterText>
         )
       </RNTesterText>
-    </>
+    </View>
   );
 }
 
@@ -1070,7 +1070,7 @@ function LineHeightExample(props: {}): React.Node {
 function LetterSpacingExample(props: {}): React.Node {
   return (
     <>
-      <View>
+      <View testID="text-letter-spacing">
         <RNTesterText style={{letterSpacing: 0}}>
           letterSpacing = 0
         </RNTesterText>
@@ -1322,7 +1322,7 @@ const examples = [
     name: 'wrap',
     render(): React.Node {
       return (
-        <RNTesterText style={styles.wrappedText}>
+        <RNTesterText testID="text-wrap" style={styles.wrappedText}>
           The text should wrap if it goes on multiple lines. See, this is going
           to the next line.
         </RNTesterText>
@@ -1341,7 +1341,7 @@ const examples = [
     name: 'padding',
     render(): React.Node {
       return (
-        <RNTesterText style={{padding: 10}}>
+        <RNTesterText testID="text-padding" style={{padding: 10}}>
           This text is indented by 10px padding on all sides.
         </RNTesterText>
       );
@@ -1380,10 +1380,10 @@ const examples = [
     name: 'fontSize',
     render(): React.Node {
       return (
-        <>
+        <View testID="text-font-size">
           <RNTesterText style={{fontSize: 23}}>Size 23</RNTesterText>
           <RNTesterText style={{fontSize: 8}}>Size 8</RNTesterText>
-        </>
+        </View>
       );
     },
   },
@@ -1392,10 +1392,10 @@ const examples = [
     name: 'color',
     render(): React.Node {
       return (
-        <>
+        <View testID="text-test-color">
           <Text style={{color: 'red'}}>Red color</Text>
           <Text style={{color: 'blue'}}>Blue color</Text>
-        </>
+        </View>
       );
     },
   },
@@ -1411,7 +1411,7 @@ const examples = [
     name: 'fontStyle',
     render(): React.Node {
       return (
-        <>
+        <View testID="text-font-style">
           <RNTesterText style={{fontStyle: 'italic'}}>
             Move fast and be italic
           </RNTesterText>
@@ -1422,7 +1422,7 @@ const examples = [
             Move fast and be italic, but just be longer so that you don't fit on
             a single line and make sure text is not truncated.
           </RNTesterText>
-        </>
+        </View>
       );
     },
   },
@@ -1470,7 +1470,7 @@ const examples = [
     name: 'spaces',
     render(): React.Node {
       return (
-        <RNTesterText>
+        <RNTesterText testID="text-spaces">
           A {'generated'} {'string'} and some &nbsp;&nbsp;&nbsp; spaces
         </RNTesterText>
       );
@@ -1497,7 +1497,7 @@ const examples = [
   },
   {
     title: 'backgroundColor attribute',
-    name: 'backgroundColorAttribute',
+    name: 'backgroundColorAttr',
     render(): React.Node {
       return <BackgroundColorExample />;
     },
diff --git a/packages/@react-native/tester/js/examples/Text/TextExample.ios.js b/packages/@react-native/tester/js/examples/Text/TextExample.ios.js
index 784cc150934..a377e4ac077 100644
--- a/packages/@react-native/tester/js/examples/Text/TextExample.ios.js
+++ b/packages/@react-native/tester/js/examples/Text/TextExample.ios.js
@@ -601,9 +601,10 @@ const examples = [
   },
   {
     title: 'Wrap',
+    name: 'wrap',
     render: function (): React.Node {
       return (
-        <Text>
+        <Text testID="text-wrap">
           The text should wrap if it goes on multiple lines. See, this is going
           to the next line.
         </Text>
@@ -612,15 +613,21 @@ const examples = [
   },
   {
     title: "Substring Emoji (should only see 'test')",
+    name: 'substringEmoji',
     render: function (): React.Node {
-      return <Text>{'test🙃'.substring(0, 5)}</Text>;
+      return (
+        <Text testID="text-substring-emoji">{'test🙃'.substring(0, 5)}</Text>
+      );
     },
   },
   {
     title: 'Transparent Background Color',
+    name: 'transparentBackgroundColor',
     render: function (): React.Node {
       return (
-        <Text style={{backgroundColor: '#00000020', padding: 10}}>
+        <Text
+          testID="text-transparent-bg"
+          style={{backgroundColor: '#00000020', padding: 10}}>
           Text in a gray box!
           <Text style={{backgroundColor: 'red'}}>
             Another text in a (inline) red box (which is inside the gray box).
@@ -711,9 +718,10 @@ const examples = [
   },
   {
     title: 'Padding',
+    name: 'padding',
     render: function (): React.Node {
       return (
-        <Text style={{padding: 10}}>
+        <Text testID="text-padding" style={{padding: 10}}>
           This text is indented by 10px padding on all sides.
         </Text>
       );
@@ -721,9 +729,10 @@ const examples = [
   },
   {
     title: 'Font Family',
+    name: 'fontFamily',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-font-family">
           <Text style={{fontFamily: Platform.isTV ? 'Times' : 'Cochin'}}>
             Cochin
           </Text>
@@ -758,9 +767,10 @@ const examples = [
   },
   {
     title: 'Font Size',
+    name: 'fontSize',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-font-size">
           <Text style={{fontSize: 23}}>Size 23</Text>
           <Text style={{fontSize: 8}}>Size 8</Text>
         </View>
@@ -769,9 +779,10 @@ const examples = [
   },
   {
     title: 'Color',
+    name: 'color',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-test-color">
           <Text style={{color: 'red'}}>Red color</Text>
           <Text style={{color: 'blue'}}>Blue color</Text>
         </View>
@@ -780,9 +791,10 @@ const examples = [
   },
   {
     title: 'Font Weight',
+    name: 'fontWeight',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-font-weight">
           <Text style={{fontWeight: 'bold'}}>Move fast and be bold</Text>
           <Text style={{fontWeight: 'normal'}}>Move fast and be normal</Text>
           <Text style={{fontWeight: '900'}}>FONT WEIGHT 900</Text>
@@ -809,9 +821,10 @@ const examples = [
   },
   {
     title: 'Font Style',
+    name: 'fontStyle',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-font-style">
           <Text style={{fontStyle: 'normal'}}>Normal text</Text>
           <Text style={{fontStyle: 'italic'}}>Italic text</Text>
         </View>
@@ -833,9 +846,10 @@ const examples = [
   },
   {
     title: 'Text Decoration',
+    name: 'textDecoration',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-text-decoration">
           <Text
             style={{
               textDecorationLine: 'underline',
@@ -908,12 +922,13 @@ const examples = [
   },
   {
     title: 'Nested',
+    name: 'nested',
     description: ('Nested text components will inherit the styles of their ' +
       'parents (only backgroundColor is inherited from non-Text parents).  ' +
       '<Text> only supports other <Text> and raw text (strings) as children.': string),
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-test-nested">
           <Text>
             (Normal text,
             <Text style={{fontWeight: 'bold'}}>
@@ -981,9 +996,10 @@ const examples = [
   },
   {
     title: 'Letter Spacing',
+    name: 'letterSpacing',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-letter-spacing">
           <Text style={{letterSpacing: 0}}>letterSpacing = 0</Text>
           <Text style={{letterSpacing: 2, marginTop: 5}}>
             letterSpacing = 2
@@ -1025,9 +1041,10 @@ const examples = [
   },
   {
     title: 'Spaces',
+    name: 'spaces',
     render: function (): React.Node {
       return (
-        <Text>
+        <Text testID="text-spaces">
           A {'generated'} {'string'} and some &nbsp;&nbsp;&nbsp; spaces
         </Text>
       );
@@ -1035,9 +1052,10 @@ const examples = [
   },
   {
     title: 'Line Height',
+    name: 'lineHeightIOS',
     render: function (): React.Node {
       return (
-        <Text>
+        <Text testID="text-line-height-ios">
           <Text style={{lineHeight: 35}}>
             A lot of space between the lines of this long passage that should
             wrap once.
@@ -1053,10 +1071,11 @@ const examples = [
   },
   {
     title: 'backgroundColor attribute',
+    name: 'backgroundColorAttr',
     description: 'backgroundColor is inherited from all types of views.',
     render: function (): React.Node {
       return (
-        <Text style={{backgroundColor: 'yellow'}}>
+        <Text testID="text-bg-color-attr" style={{backgroundColor: 'yellow'}}>
           Yellow container background,
           <Text style={{backgroundColor: '#ffaaaa'}}>
             {' '}
@@ -1240,9 +1259,10 @@ const examples = [
   },
   {
     title: 'Text shadow',
+    name: 'textShadow',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-text-shadow">
           <Text
             style={{
               fontSize: 20,
@@ -1258,9 +1278,10 @@ const examples = [
   },
   {
     title: 'Ellipsize mode',
+    name: 'ellipsizeMode',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-ellipsize-mode">
           <Text numberOfLines={1}>
             This very long text should be truncated with dots in the end.
           </Text>
@@ -1279,9 +1300,10 @@ const examples = [
   },
   {
     title: 'Font variants',
+    name: 'fontVariants',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-font-variants">
           <Text style={{fontVariant: ['small-caps']}}>Small Caps{'\n'}</Text>
           <Text
             style={{
@@ -1360,9 +1382,10 @@ const examples = [
   },
   {
     title: 'Transform',
+    name: 'textTransform',
     render: function (): React.Node {
       return (
-        <View>
+        <View testID="text-transform">
           <Text style={{textTransform: 'uppercase'}}>
             This text should be uppercased.
           </Text>
@@ -1419,6 +1442,7 @@ const examples = [
   },
   {
     title: 'Line Break Strategy',
+    name: 'lineBreakStrategy',
     render: function (): React.Node {
       const lineBreakStrategy = [
         'none',
@@ -1434,7 +1458,7 @@ const examples = [
       };
 
       return (
-        <View>
+        <View testID="text-line-break-strategy">
           {lineBreakStrategy.map(strategy => {
             return (
               <View key={strategy} style={{marginBottom: 12}}>
diff --git a/packages/@react-native/tester/js/examples/Text/TextSharedExamples.js b/packages/@react-native/tester/js/examples/Text/TextSharedExamples.js
index 5536c744956..3be718720a4 100644
--- a/packages/@react-native/tester/js/examples/Text/TextSharedExamples.js
+++ b/packages/@react-native/tester/js/examples/Text/TextSharedExamples.js
@@ -194,11 +194,17 @@ component RtlAndInlineViewsExample() {
 }
 
 component TextWithLinkRoleExample() {
-  const handlePress = () => console.log('Link Press');
+  const [pressed, setPressed] = useState(false);
+  const handlePress = () => setPressed(true);
+  const linkColor = pressed ? 'red' : 'teal';
 
   return (
-    <View>
-      <Text role="link" style={styles.link} onPress={handlePress}>
+    <View testID="text-with-link-role">
+      <Text
+        role="link"
+        style={[styles.link, {color: linkColor}]}
+        onPress={handlePress}
+        testID="text-link-role-link">
         Link Text
       </Text>
 
diff --git a/packages/@react-native/tester/js/examples/Touchable/TouchableExample.js b/packages/@react-native/tester/js/examples/Touchable/TouchableExample.js
index 31daa433f77..75b844d1148 100644
--- a/packages/@react-native/tester/js/examples/Touchable/TouchableExample.js
+++ b/packages/@react-native/tester/js/examples/Touchable/TouchableExample.js
@@ -310,7 +310,7 @@ class TouchableHitSlop extends React.Component<{...}, $FlowFixMe> {
 }
 
 function TouchableNativeMethodChecker<
-  T: component(ref?: React.RefSetter<any>, ...any),
+  T extends component(ref?: React.RefSetter<any>, ...any),
 >(props: {Component: T, name: string}): React.Node {
   const [status, setStatus] = useState<?boolean>(null);
   const ref = useRef<any>(null);
@@ -672,6 +672,7 @@ exports.documentationURL = 'https://reactnative.dev/docs/touchablehighlight';
 exports.examples = [
   {
     title: '<TouchableHighlight>',
+    name: 'highlight',
     description: ('TouchableHighlight works by adding an extra view with a ' +
       'black background under the single child view.  This works best when the ' +
       'child view is fully opaque, although it can be made to work as a simple ' +
@@ -683,6 +684,7 @@ exports.examples = [
   },
   {
     title: '<TouchableWithoutFeedback>',
+    name: 'without-feedback',
     render(): React.Node {
       return <TouchableWithoutFeedbackBox />;
     },
@@ -742,6 +744,7 @@ exports.examples = [
   },
   {
     title: 'Touchable feedback events',
+    name: 'feedback-events',
     description: ('<Touchable*> components accept onPress, onPressIn, ' +
       'onPressOut, and onLongPress as props.': string),
     render(): React.MixedElement {
@@ -768,6 +771,7 @@ exports.examples = [
   },
   {
     title: 'Touchable Hit Slop',
+    name: 'hit-slop',
     description:
       ('<Touchable*> components accept hitSlop prop which extends the touch area ' +
         'without changing the view bounds.': string),
diff --git a/packages/@react-native/tester/js/examples/Transform/TransformExample.js b/packages/@react-native/tester/js/examples/Transform/TransformExample.js
index 262206a9c0e..6ba8b3b4d98 100644
--- a/packages/@react-native/tester/js/examples/Transform/TransformExample.js
+++ b/packages/@react-native/tester/js/examples/Transform/TransformExample.js
@@ -349,11 +349,14 @@ exports.examples = [
   },
   {
     title: 'Translate, Rotate, Scale',
+    name: 'translate-rotate-scale',
     description:
       "translateX: 100, translateY: 50, rotate: '30deg', scaleX: 2, scaleY: 2",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View
+          testID="transform-translate-rotate-scale"
+          style={styles.container}>
           <View style={styles.box1} />
         </View>
       );
@@ -361,11 +364,14 @@ exports.examples = [
   },
   {
     title: 'Scale, Translate, Rotate, ',
+    name: 'scale-translate-rotate',
     description:
       "scaleX: 2, scaleY: 2, translateX: 100, translateY: 50, rotate: '30deg'",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View
+          testID="transform-scale-translate-rotate"
+          style={styles.container}>
           <View style={styles.box2} />
         </View>
       );
@@ -373,10 +379,11 @@ exports.examples = [
   },
   {
     title: 'Rotate',
+    name: 'rotate',
     description: "rotate: '30deg'",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View testID="transform-rotate" style={styles.container}>
           <View style={styles.box3step1} />
         </View>
       );
@@ -384,10 +391,11 @@ exports.examples = [
   },
   {
     title: 'Rotate, Scale',
+    name: 'rotate-scale',
     description: "rotate: '30deg', scaleX: 2, scaleY: 2",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View testID="transform-rotate-scale" style={styles.container}>
           <View style={styles.box3step2} />
         </View>
       );
@@ -395,11 +403,14 @@ exports.examples = [
   },
   {
     title: 'Rotate, Scale, Translate ',
+    name: 'rotate-scale-translate',
     description:
       "rotate: '30deg', scaleX: 2, scaleY: 2, translateX: 100, translateY: 50",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View
+          testID="transform-rotate-scale-translate"
+          style={styles.container}>
           <View style={styles.box3step3} />
         </View>
       );
@@ -407,10 +418,13 @@ exports.examples = [
   },
   {
     title: 'Translate, Scale, Rotate',
+    name: 'translate-scale-rotate',
     description: "translate: [200, 350], scale: 2.5, rotate: '-0.2rad'",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View
+          testID="transform-translate-scale-rotate"
+          style={styles.container}>
           <View style={styles.box4} />
         </View>
       );
@@ -418,10 +432,13 @@ exports.examples = [
   },
   {
     title: 'Translate, Rotate, Scale',
+    name: 'translate-rotate-scale-2',
     description: "translate: [-50, 35], rotate: '50deg', scale: 2",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View
+          testID="transform-translate-rotate-scale-2"
+          style={styles.container}>
           <View style={[styles.box5, styles.box5Transform]} />
         </View>
       );
@@ -436,10 +453,11 @@ exports.examples = [
   },
   {
     title: 'Transform using a string',
+    name: 'string-transform',
     description: "transform: 'translate(-50px, 35px) rotate(50deg) scale(2)'",
     render(): React.Node {
       return (
-        <View style={styles.container}>
+        <View testID="transform-string" style={styles.container}>
           <View style={[styles.box7, styles.box7Transform]} />
         </View>
       );
@@ -454,16 +472,26 @@ exports.examples = [
   },
   {
     title: 'Translate Percentage',
+    name: 'translate-percentage',
     description: "transform: 'translate(50%)'",
     render(): React.Node {
-      return <TranslatePercentage />;
+      return (
+        <View testID="transform-translate-percentage">
+          <TranslatePercentage />
+        </View>
+      );
     },
   },
   {
     title: 'Transform Matrix 2D',
+    name: 'matrix-2d',
     description: "transform: 'matrix(1, 0, 0, 0, 1, 0, 0, 0, 1)'",
     render(): React.Node {
-      return <TranslateMatrix2D />;
+      return (
+        <View testID="transform-matrix-2d">
+          <TranslateMatrix2D />
+        </View>
+      );
     },
   },
   {
diff --git a/packages/@react-native/tester/js/examples/TurboModule/TurboCxxModuleExample.js b/packages/@react-native/tester/js/examples/TurboModule/TurboCxxModuleExample.js
new file mode 100644
index 00000000000..65771081a17
--- /dev/null
+++ b/packages/@react-native/tester/js/examples/TurboModule/TurboCxxModuleExample.js
@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+'use strict';
+
+import type {RNTesterModuleExample} from '../../types/RNTesterTypes';
+
+const NativeCxxModuleExampleExample = require('./NativeCxxModuleExampleExample');
+const React = require('react');
+
+exports.displayName = (undefined: ?string);
+exports.title = 'Cxx TurboModule';
+exports.category = 'Basic';
+exports.description = 'Usage of Cxx TurboModule';
+exports.examples = [
+  {
+    title: 'TurboCxxModuleExample',
+    render: function (): React.MixedElement {
+      return <NativeCxxModuleExampleExample />;
+    },
+  },
+] as Array<RNTesterModuleExample>;
diff --git a/vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj b/vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj
index 68252ab0e33..68476796b6b 100644
--- a/vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj
+++ b/vnext/Microsoft.ReactNative/Microsoft.ReactNative.vcxproj
@@ -140,6 +140,7 @@
         %(PreprocessorDefinitions)
       </PreprocessorDefinitions>
       <AdditionalUsingDirectories>$(WindowsSDK_WindowsMetadata);$(AdditionalUsingDirectories)</AdditionalUsingDirectories>
+      <DisableSpecificWarnings>4715;%(DisableSpecificWarnings)</DisableSpecificWarnings>
       <TreatWarningAsError>true</TreatWarningAsError>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
diff --git a/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp
new file mode 100644
index 00000000000..71b0310e46d
--- /dev/null
+++ b/vnext/ReactCommon/TEMP_UntilReactCommonUpdate/react/nativemodule/defaults/DefaultTurboModules.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include "DefaultTurboModules.h"
+#include <react/featureflags/ReactNativeFeatureFlags.h>
+#include <react/nativemodule/dom/NativeDOM.h>
+#include <react/nativemodule/featureflags/NativeReactNativeFeatureFlags.h>
+#include <react/nativemodule/idlecallbacks/NativeIdleCallbacks.h>
+#include <react/nativemodule/intersectionobserver/NativeIntersectionObserver.h>
+#include <react/nativemodule/microtasks/NativeMicrotasks.h>
+#include <react/nativemodule/mutationobserver/NativeMutationObserver.h>
+#include <react/nativemodule/webperformance/NativePerformance.h>
+
+#ifdef REACT_NATIVE_DEBUGGER_ENABLED_DEVONLY
+#include <react/nativemodule/devtoolsruntimesettings/DevToolsRuntimeSettingsModule.h>
+#endif
+
+namespace facebook::react {
+
+/* static */ std::shared_ptr<TurboModule> DefaultTurboModules::getTurboModule(
+    const std::string &name,
+    const std::shared_ptr<CallInvoker> &jsInvoker) {
+  if (name == NativeReactNativeFeatureFlags::kModuleName) {
+    return std::make_shared<NativeReactNativeFeatureFlags>(jsInvoker);
+  }
+
+  if (name == NativeMicrotasks::kModuleName) {
+    return std::make_shared<NativeMicrotasks>(jsInvoker);
+  }
+
+  if (name == NativeIdleCallbacks::kModuleName) {
+    return std::make_shared<NativeIdleCallbacks>(jsInvoker);
+  }
+
+  if (name == NativeDOM::kModuleName) {
+    return std::make_shared<NativeDOM>(jsInvoker);
+  }
+
+  if (name == NativePerformance::kModuleName) {
+    return std::make_shared<NativePerformance>(jsInvoker);
+  }
+
+  if (ReactNativeFeatureFlags::enableIntersectionObserverByDefault()) {
+    if (name == NativeIntersectionObserver::kModuleName) {
+      return std::make_shared<NativeIntersectionObserver>(jsInvoker);
+    }
+  }
+
+  if (ReactNativeFeatureFlags::enableMutationObserverByDefault()) {
+    if (name == NativeMutationObserver::kModuleName) {
+      return std::make_shared<NativeMutationObserver>(jsInvoker);
+    }
+  }
+
+#ifdef REACT_NATIVE_DEBUGGER_ENABLED_DEVONLY
+  if (name == DevToolsRuntimeSettingsModule::kModuleName) {
+    return std::make_shared<DevToolsRuntimeSettingsModule>(jsInvoker);
+  }
+#endif
+
+  return nullptr;
+}
+
+} // namespace facebook::react
diff --git a/vnext/Shared/Shared.vcxitems b/vnext/Shared/Shared.vcxitems
index 7deb0920ee8..d6c36cc6f2e 100644
--- a/vnext/Shared/Shared.vcxitems
+++ b/vnext/Shared/Shared.vcxitems
@@ -468,6 +468,9 @@
   </ItemGroup>
   <ItemGroup Condition="'$(UseFabric)' == 'true'">
     <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\nativemodule\defaults\DefaultTurboModules.cpp" />
+    <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\nativemodule\mutationobserver\NativeMutationObserver.cpp" />
+    <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\observers\mutation\MutationObserver.cpp" />
+    <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\observers\mutation\MutationObserverManager.cpp" />
     <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\nativemodule\intersectionobserver\NativeIntersectionObserver.cpp" />
     <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\observers\intersection\IntersectionObserver.cpp" DisableSpecificWarnings="4996;%(DisableSpecificWarnings)" />
     <CLCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\observers\intersection\IntersectionObserverManager.cpp" DisableSpecificWarnings="4996;%(DisableSpecificWarnings)" />
@@ -564,6 +567,7 @@
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\observers\events\EventPerformanceLogger.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\scheduler\Scheduler.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\scheduler\SurfaceHandler.cpp" />
+    <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\viewtransition\ViewTransitionModule.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\telemetry\SurfaceTelemetry.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\telemetry\TransactionTelemetry.cpp" />
     <ClCompile Include="$(ReactNativeDir)\ReactCommon\react\renderer\textlayoutmanager\TextMeasureCache.cpp" />
diff --git a/vnext/package.json b/vnext/package.json
index fb72a72bc6f..b26448a4283 100644
--- a/vnext/package.json
+++ b/vnext/package.json
@@ -85,7 +85,7 @@
     "@types/node": "^22.14.0",
     "@types/react": "^19.2.3",
     "eslint": "^8.19.0",
-    "flow-bin": "^0.303.0",
+    "flow-bin": "^0.304.0",
     "jscodeshift": "^0.14.0",
     "just-scripts": "^1.3.3",
     "prettier": "^3.6.2",
diff --git a/vnext/src-win/Libraries/Components/View/View.windows.js b/vnext/src-win/Libraries/Components/View/View.windows.js
index 15b8ad7b6fe..565725af562 100644
--- a/vnext/src-win/Libraries/Components/View/View.windows.js
+++ b/vnext/src-win/Libraries/Components/View/View.windows.js
@@ -10,7 +10,6 @@
 
 import type {ViewProps} from './ViewPropTypes';
 
-import * as ReactNativeFeatureFlags from '../../../src/private/featureflags/ReactNativeFeatureFlags';
 import TextAncestorContext from '../../Text/TextAncestorContext';
 import ViewNativeComponent from './ViewNativeComponent';
 import * as React from 'react';
@@ -69,37 +68,6 @@ component View(
 ) {
   const hasTextAncestor = use(TextAncestorContext);
 
-<<<<<<< Upstream
-  let resolvedProps = props;
-  if (!ReactNativeFeatureFlags.enableNativeViewPropTransformations()) {
-    const {
-      accessibilityState,
-      accessibilityValue,
-      'aria-busy': ariaBusy,
-      'aria-checked': ariaChecked,
-      'aria-disabled': ariaDisabled,
-      'aria-expanded': ariaExpanded,
-      'aria-hidden': ariaHidden,
-      'aria-label': ariaLabel,
-      'aria-labelledby': ariaLabelledBy,
-      'aria-live': ariaLive,
-      'aria-selected': ariaSelected,
-      'aria-valuemax': ariaValueMax,
-      'aria-valuemin': ariaValueMin,
-      'aria-valuenow': ariaValueNow,
-      'aria-valuetext': ariaValueText,
-      id,
-      tabIndex,
-      ...otherProps
-    } = props;
-
-    const processedProps = otherProps as {...ViewProps};
-
-    const parsedAriaLabelledBy = ariaLabelledBy?.split(/\s*,\s*/g);
-    if (parsedAriaLabelledBy !== undefined) {
-      processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
-    }
-=======
   let actualView;
   const {
     accessibilityState,
@@ -136,29 +104,23 @@ component View(
   if (parsedAriaLabelledBy !== undefined) {
     processedProps.accessibilityLabelledBy = parsedAriaLabelledBy;
   }
->>>>>>> Override
 
-    if (ariaLabel !== undefined) {
-      processedProps.accessibilityLabel = ariaLabel;
-    }
+  if (ariaLabel !== undefined) {
+    processedProps.accessibilityLabel = ariaLabel;
+  }
 
-    if (ariaLive !== undefined) {
-      processedProps.accessibilityLiveRegion =
-        ariaLive === 'off' ? 'none' : ariaLive;
-    }
+  if (ariaLive !== undefined) {
+    processedProps.accessibilityLiveRegion =
+      ariaLive === 'off' ? 'none' : ariaLive;
+  }
 
-    if (ariaHidden !== undefined) {
-      processedProps.accessibilityElementsHidden = ariaHidden;
-      if (ariaHidden === true) {
-        processedProps.importantForAccessibility = 'no-hide-descendants';
-      }
+  if (ariaHidden !== undefined) {
+    processedProps.accessibilityElementsHidden = ariaHidden;
+    if (ariaHidden === true) {
+      processedProps.importantForAccessibility = 'no-hide-descendants';
     }
+  }
 
-<<<<<<< Upstream
-    if (id !== undefined) {
-      processedProps.nativeID = id;
-    }
-=======
   // Windows accessibility properties
   if (ariaLevel !== undefined) {
     processedProps.accessibilityLevel = ariaLevel;
@@ -179,45 +141,11 @@ component View(
   if (id !== undefined) {
     processedProps.nativeID = id;
   }
->>>>>>> Override
-
-    if (tabIndex !== undefined) {
-      processedProps.focusable = !tabIndex;
-    }
 
-<<<<<<< Upstream
-    if (
-      accessibilityState != null ||
-      ariaBusy != null ||
-      ariaChecked != null ||
-      ariaDisabled != null ||
-      ariaExpanded != null ||
-      ariaSelected != null
-    ) {
-      processedProps.accessibilityState = {
-        busy: ariaBusy ?? accessibilityState?.busy,
-        checked: ariaChecked ?? accessibilityState?.checked,
-        disabled: ariaDisabled ?? accessibilityState?.disabled,
-        expanded: ariaExpanded ?? accessibilityState?.expanded,
-        selected: ariaSelected ?? accessibilityState?.selected,
-      };
-    }
+  if (tabIndex !== undefined) {
+    processedProps.focusable = !tabIndex;
+  }
 
-    if (
-      accessibilityValue != null ||
-      ariaValueMax != null ||
-      ariaValueMin != null ||
-      ariaValueNow != null ||
-      ariaValueText != null
-    ) {
-      processedProps.accessibilityValue = {
-        max: ariaValueMax ?? accessibilityValue?.max,
-        min: ariaValueMin ?? accessibilityValue?.min,
-        now: ariaValueNow ?? accessibilityValue?.now,
-        text: ariaValueText ?? accessibilityValue?.text,
-      };
-    }
-=======
   if (
     accessibilityState != null ||
     ariaBusy != null ||
@@ -241,9 +169,20 @@ component View(
       required: ariaRequired ?? accessibilityState?.required, // Windows
     };
   }
->>>>>>> Override
 
-    resolvedProps = processedProps;
+  if (
+    accessibilityValue != null ||
+    ariaValueMax != null ||
+    ariaValueMin != null ||
+    ariaValueNow != null ||
+    ariaValueText != null
+  ) {
+    processedProps.accessibilityValue = {
+      max: ariaValueMax ?? accessibilityValue?.max,
+      min: ariaValueMin ?? accessibilityValue?.min,
+      now: ariaValueNow ?? accessibilityValue?.now,
+      text: ariaValueText ?? accessibilityValue?.text,
+    };
   }
 
   // [Windows key event processing and accessible property
@@ -346,9 +285,9 @@ component View(
 
   actualView =
     ref == null ? (
-      <ViewNativeComponent {...resolvedProps} />
+      <ViewNativeComponent {...processedProps} />
     ) : (
-      <ViewNativeComponent {...resolvedProps} ref={ref} />
+      <ViewNativeComponent {...processedProps} ref={ref} />
     );
 
   if (hasTextAncestor) {
diff --git a/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js b/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
index f5b0826a002..6902a5024c1 100644
--- a/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
+++ b/vnext/src-win/Libraries/NativeComponent/BaseViewConfig.windows.js
@@ -404,7 +404,6 @@ const validAttributesForNonEventProps = {
   focusable: true, // [Windows]
   keyDownEvents: true, // [Windows]
   keyUpEvents: true, // [Windows]
-  tabIndex: true, // [Windows]
   tooltip: true, // [Windows]
   enableFocusRing: true, // [Windows]
   importantForAccessibility: true, // [Windows]
diff --git a/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js b/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
index 5779bcfbda3..6acaa4133f8 100644
--- a/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
+++ b/vnext/src-win/Libraries/NativeComponent/ViewConfigIgnore.windows.js
@@ -13,13 +13,9 @@ const ignoredViewConfigProps = new WeakSet < { ...} > ();
  * Decorates ViewConfig values that are dynamically injected by the library,
  * react-native-gesture-handler. (T45765076)
  */
-<<<<<<< Upstream
 export function DynamicallyInjectedByGestureHandler<T extends {...}>(
   object: T,
 ): T {
-=======
-export function DynamicallyInjectedByGestureHandler<T: {... }> (object: T): T {
->>>>>>> Override
   ignoredViewConfigProps.add(object);
   return object;
 }
@@ -38,18 +34,9 @@ export function DynamicallyInjectedByGestureHandler<T: {... }> (object: T): T {
  * TODO(T110872225): Remove this logic, after achieving platform-consistency
  */
 export function ConditionallyIgnoredEventHandlers<
-<<<<<<< Upstream
   const T extends {+[name: string]: true},
 >(value: T): T | void {
-  if (Platform.OS === 'ios') {
-    return value;
-  }
-  return undefined;
-=======
-  const T: { +[name: string]: true },
-> (value: T): T | void {
   return value;
->>>>>>> Override
 }
 
 export function isIgnored(value: unknown): boolean {
diff --git a/yarn.lock b/yarn.lock
index 3c1430e33d7..cf5bf839f04 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3606,7 +3606,7 @@ __metadata:
     commander: "npm:^12.0.0"
     eslint: "npm:^8.19.0"
     event-target-shim: "npm:^5.0.1"
-    flow-bin: "npm:^0.303.0"
+    flow-bin: "npm:^0.304.0"
     flow-enums-runtime: "npm:^0.0.6"
     glob: "npm:^7.1.1"
     hermes-compiler: "npm:250829098.0.10"
@@ -4599,7 +4599,7 @@ __metadata:
     eslint-plugin-relay: "npm:^1.8.3"
     fb-dotslash: "npm:0.5.8"
     flow-api-translator: "npm:0.33.3"
-    flow-bin: "npm:^0.303.0"
+    flow-bin: "npm:^0.304.0"
     hermes-eslint: "npm:0.33.3"
     hermes-transform: "npm:0.33.3"
     ini: "npm:^5.0.0"
@@ -10596,12 +10596,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"flow-bin@npm:^0.303.0":
-  version: 0.303.0
-  resolution: "flow-bin@npm:0.303.0"
+"flow-bin@npm:^0.304.0":
+  version: 0.304.0
+  resolution: "flow-bin@npm:0.304.0::__archiveUrl=https%3A%2F%2Fms-feed-2.pkgs.visualstudio.com%2F1es-public%2F_packaging%2Fnpm-public%2Fnpm%2Fregistry%2Fflow-bin%2F-%2Fflow-bin-0.304.0.tgz"
   bin:
     flow: cli.js
-  checksum: 10c0/0f3319f4ba62a8dc1b59a5f684d68249e8365cea32dd73c1430bdb82f47579852bc0ff91a153fa76fc9c1f93a9f166232ba14b2f45622b2457f5ea4bb4eb0380
+  checksum: 10c0/267a1b91600e29646d562600cbee6edf31a8a4634233fe1b207c4b1c70cc294339899bf22db42f253cfc784a6b784970bae2cb20af7b3d1cff8fe8f13fbb9863
   languageName: node
   linkType: hard
 
@@ -16407,7 +16407,7 @@ __metadata:
     commander: "npm:^12.0.0"
     eslint: "npm:^8.19.0"
     event-target-shim: "npm:^5.0.1"
-    flow-bin: "npm:^0.303.0"
+    flow-bin: "npm:^0.304.0"
     flow-enums-runtime: "npm:^0.0.6"
     glob: "npm:^7.1.1"
     hermes-compiler: "npm:250829098.0.10"