microsoft · iamAbhi-916 · Jul 30, 2025 · Jul 31, 2025 · Jul 31, 2025 · Jul 31, 2025
@@ -34,6 +34,12 @@
     <RestoreForceEvaluate Condition="'$(RestoreForceEvaluate)' == ''">true</RestoreForceEvaluate>
   </PropertyGroup>
 
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+    </ClCompile>
+  </ItemDefinitionGroup>
+
   <!-- User overrides -->
   <Import Project="$(MSBuildThisFileDirectory)Directory.Build.local.props" Condition="Exists('$(MSBuildThisFileDirectory)Directory.Build.local.props')" />
 

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "integrate nightly 0.81.0-nightly-20250521-3cb70bb6a",
+  "packageName": "@office-iss/react-native-win32",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "fix",
+  "packageName": "@react-native-windows/automation-channel",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "fix",
+  "packageName": "react-native-platform-override",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "fix",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}
@@ -5,13 +5,13 @@
   "excludePatterns": [
     "src/js/examples-win32/**"
   ],
-  "baseVersion": "0.80.0-nightly-20250506-3ac16dd6a",
+  "baseVersion": "0.81.0-nightly-20250521-3cb70bb6a",
   "overrides": [
     {
       "type": "patch",
       "file": "src/js/components/ListExampleShared.win32.js",
       "baseFile": "packages/rn-tester/js/components/ListExampleShared.js",
-      "baseHash": "d39ad505e22d525b00b8f63165ce2c2bbcc86152"
+      "baseHash": "eb604f3c06468e8aaa2671985a772b26f666e5de"
     },
     {
       "type": "patch",

@@ -30,7 +30,7 @@
     "@types/node": "^22.14.0",
     "eslint": "^8.19.0",
     "just-scripts": "^1.3.3",
-    "react-native": "0.80.0-nightly-20250506-3ac16dd6a",
+    "react-native": "0.81.0-nightly-20250521-3cb70bb6a",
     "react-native-platform-override": "^1.9.57",
     "typescript": "5.0.4"
   },

@@ -12,6 +12,7 @@
 
 import RNTesterText from './RNTesterText';
 import React from 'react';
+import {memo} from 'react';
 import {
   ActivityIndicator,
   Animated,
@@ -164,7 +165,7 @@ class SeparatorComponent extends React.PureComponent<{...}> {
   }
 }
 
-const LoadingComponent: React.ComponentType<{}> = React.memo(() => (
+const LoadingComponent: React.ComponentType<{}> = memo(() => (
   <View style={styles.loadingContainer}>
     <ActivityIndicator />
   </View>

@@ -49,6 +49,7 @@
 ; Ignore react-native files in node_modules since they are copied into project root
 .*/node_modules/react-native/.*
 
+
 ; Ignore react-native-windows' build output. Flow is not compiled with long path support and after running unittests these folders have long paths
 .*/node_modules/react-native-windows/build/.*
 .*/node_modules/react-native-windows/target/.*
@@ -174,4 +175,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.269.1
+^0.271.0
@@ -7,19 +7,19 @@
     "**/__snapshots__/**",
     "src-win/rntypes/**"
   ],
-  "baseVersion": "0.80.0-nightly-20250506-3ac16dd6a",
+  "baseVersion": "0.81.0-nightly-20250521-3cb70bb6a",
   "overrides": [
     {
       "type": "derived",
       "file": ".flowconfig",
       "baseFile": ".flowconfig",
-      "baseHash": "70ed729d5f52c241530e8459cc40263d4e9fa9c0"
+      "baseHash": "dbea35126905a8314fa0a64ed2912896bc6d307b"
     },
     {
       "type": "derived",
       "file": "src-win/index.win32.js",
       "baseFile": "packages/react-native/index.js",
-      "baseHash": "96361b83bfc122f1d78cc7d87ea0d7c3bfac138f"
+      "baseHash": "b447e699186ab3e95da9dc4520b9c2517776e723"
     },
     {
       "type": "platform",
@@ -60,7 +60,7 @@
       "type": "derived",
       "file": "src-win/Libraries/Components/Button.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/Button.js",
-      "baseHash": "4e77e13aa5774e813fbd874a13a920ea12e3ed91"
+      "baseHash": "6063d726e6255d1c55e07587f9ce09f1b7284301"
     },
     {
       "type": "platform",
@@ -85,14 +85,14 @@
       "type": "patch",
       "file": "src-win/Libraries/Components/Pressable/Pressable.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/Pressable/Pressable.js",
-      "baseHash": "96bdd4aebf4133fd2fe6d1b448f9d7b4cd3e8982",
+      "baseHash": "eff51d201199c68c6f7ca268e315e538dcc01ab9",
       "issue": 6240
     },
     {
       "type": "patch",
       "file": "src-win/Libraries/Components/ProgressBarAndroid/ProgressBarAndroid.js",
       "baseFile": "packages/react-native/Libraries/Components/ProgressBarAndroid/ProgressBarAndroid.js",
-      "baseHash": "c96925930d9664306a8aef8b4102c43055ea03be"
+      "baseHash": "d1cc663442d184b62799b748c475a5a2c5c558c7"
     },
     {
       "type": "copy",
@@ -108,13 +108,13 @@
       "type": "derived",
       "file": "src-win/Libraries/Components/TextInput/TextInput.flow.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/TextInput/TextInput.flow.js",
-      "baseHash": "f407548782cade71af32a52ecb440f72a403f06e"
+      "baseHash": "b611f4e98e9c7818dfac087e4f14384d3cc16b6a"
     },
     {
       "type": "derived",
       "file": "src-win/Libraries/Components/TextInput/TextInput.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/TextInput/TextInput.js",
-      "baseHash": "9965c0079652083ab549bc2799eb9528b56a1b2d"
+      "baseHash": "2a5835c5cbdb36bd110e26f9be737aaaeb1fd97c"
     },
     {
       "type": "patch",
@@ -153,7 +153,7 @@
       "type": "derived",
       "file": "src-win/Libraries/Components/Touchable/TouchableNativeFeedback.win32.js",
       "baseFile": "packages/react-native/Libraries/Components/Touchable/TouchableNativeFeedback.js",
-      "baseHash": "8706705c1f8d3dd5390ea631ce5ae60e300ae50d"
+      "baseHash": "1cad0522ba348d657e7857bf84628d88e776170b"
     },
     {
       "type": "platform",
@@ -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": "2dd3e58cf6c4bc0882550eedd8150435972365eb"
+      "baseHash": "121c2126d26c94c8e508e3fb19ffe33f7be814b1"
     },
     {
       "type": "derived",
@@ -218,7 +218,7 @@
       "type": "patch",
       "file": "src-win/Libraries/Core/Devtools/loadBundleFromServer.win32.js",
       "baseFile": "packages/react-native/Libraries/Core/Devtools/loadBundleFromServer.js",
-      "baseHash": "e0158fd16d4a787e5a94d69e2b7a721e81b7c3da",
+      "baseHash": "ac08c96a4bebd677597a40ea1525a2d5d1ee8742",
       "issue": 12704
     },
     {
@@ -236,7 +236,7 @@
       "type": "derived",
       "file": "src-win/Libraries/Image/Image.win32.js",
       "baseFile": "packages/react-native/Libraries/Image/Image.ios.js",
-      "baseHash": "c0bc913aa95b6d1309ba44ef7968ba58fc488427",
+      "baseHash": "5d62f4a6c4edfe3007eb3b80704a1dfb68e5ff8a",
       "issue": 4320
     },
     {
@@ -303,13 +303,13 @@
       "type": "derived",
       "file": "src-win/Libraries/LogBox/UI/LogBoxInspectorReactFrames.win32.js",
       "baseFile": "packages/react-native/Libraries/LogBox/UI/LogBoxInspectorReactFrames.js",
-      "baseHash": "3a3d7da499937cce35c9bd17a11f10b2eeac04cc"
+      "baseHash": "cdf958aebabbe9067d34a2df3e6f2fe7ce09f51e"
     },
     {
       "type": "derived",
       "file": "src-win/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.win32.js",
       "baseFile": "packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.js",
-      "baseHash": "b355418205aa52cf33fb7e4d521b26083eada49d"
+      "baseHash": "987653809d7838bb80d3a975abc9f0fd3bc13d93"
     },
     {
       "type": "derived",
@@ -390,6 +390,13 @@
       "baseFile": "packages/react-native/Libraries/ReactNative/PaperUIManager.js",
       "baseHash": "7a14c3d42ba7442848bd90329f6d31bda323c6d4"
     },
+    {
+      "type": "copy",
+      "file": "src-win/Libraries/Renderer/shims/ReactNativeTypes.js",
+      "baseFile": "packages/react-native/Libraries/Renderer/shims/ReactNativeTypes.js",
+      "baseHash": "4e0c2fba71006410b3effa3979aea91e0f711144",
+      "issue": 0
+    },
     {
       "type": "derived",
       "file": "src-win/Libraries/Settings/Settings.win32.js",
@@ -412,13 +419,13 @@
       "type": "derived",
       "file": "src-win/Libraries/Text/Text.d.ts",
       "baseFile": "packages/react-native/Libraries/Text/Text.d.ts",
-      "baseHash": "b5f44957bc61497fcb7203934bdbc6ca9725cf42"
+      "baseHash": "d3807571f477ef8ba4bb20c1ee899b1a5814941d"
     },
     {
       "type": "derived",
       "file": "src-win/Libraries/Text/Text.win32.js",
       "baseFile": "packages/react-native/Libraries/Text/Text.js",
-      "baseHash": "1f802db19830e468b84640fc5c7740a11e154250"
+      "baseHash": "108e59816ed3b3c8183d0687a66088755580c00d"
     },
     {
       "type": "derived",
@@ -431,7 +438,7 @@
       "type": "derived",
       "file": "src-win/Libraries/Text/TextProps.win32.js",
       "baseFile": "packages/react-native/Libraries/Text/TextProps.js",
-      "baseHash": "d31f973c14140792d9d28d208fca15d092a8a4e2"
+      "baseHash": "6ee62a1b3a4384c2b5bd1dd10a13664c72e5dc88"
     },
     {
       "type": "patch",
@@ -477,7 +484,7 @@
       "type": "patch",
       "file": "src-win/Libraries/Utilities/PlatformTypes.js",
       "baseFile": "packages/react-native/Libraries/Utilities/PlatformTypes.js",
-      "baseHash": "0bd36210528f74f9081d858c9ab64ead92c54950",
+      "baseHash": "8beb4d8d786f33f9eeb6edcff939c38765e19055",
       "issue": 14686
     },
     {
@@ -490,14 +497,14 @@
       "type": "patch",
       "file": "src-win/src/private/animated/NativeAnimatedHelper.win32.js",
       "baseFile": "packages/react-native/src/private/animated/NativeAnimatedHelper.js",
-      "baseHash": "3247a8e436a7beeda45ce7d77343229b5204cbfc",
+      "baseHash": "e897f1bd33ed982044b97a01d9f606b9ebcd4505",
       "issue": 11041
     },
     {
       "type": "copy",
       "file": "src-win/src/private/devsupport/rndevtools/ReactDevToolsSettingsManager.win32.js",
       "baseFile": "packages/react-native/src/private/devsupport/rndevtools/ReactDevToolsSettingsManager.android.js",
-      "baseHash": "2d33789b0c7a45996dc23f26c4b09fb2026a9285"
+      "baseHash": "f2cc01b07b779b75002daec9c2761616ad01f4ca"
     },
     {
       "type": "derived",

@@ -83,12 +83,12 @@
     "@types/prop-types": "15.7.1",
     "@types/react": "^19.0.0",
     "eslint": "^8.19.0",
-    "flow-bin": "^0.269.0",
+    "flow-bin": "^0.271.0",
     "jscodeshift": "^0.14.0",
     "just-scripts": "^1.3.3",
     "prettier": "2.8.8",
     "react": "19.1.0",
-    "react-native": "0.80.0-nightly-20250506-3ac16dd6a",
+    "react-native": "0.81.0-nightly-20250521-3cb70bb6a",
     "react-native-platform-override": "^1.9.57",
     "typescript": "5.0.4"
   },

@@ -291,7 +291,7 @@ type ButtonRef = React.ElementRef<typeof Touchable>;
 const Button: component(
   ref?: React.RefSetter<ButtonRef>,
   ...props: ButtonProps
-) = React.forwardRef((props: ButtonProps, ref: React.RefSetter<ButtonRef>) => {
+) = ({ref, ...props}: {ref?: React.RefSetter<ButtonRef>, ...ButtonProps}) => {
   // Win32
   const {
     accessibilityLabel,
@@ -400,7 +400,7 @@ const Button: component(
       </View>
     </Touchable>
   );
-});
+};
 
 Button.displayName = 'Button';
 

@@ -28,7 +28,7 @@ import useAndroidRippleForView, {
   type PressableAndroidRippleConfig,
 } from './useAndroidRippleForView';
 import * as React from 'react';
-import {useMemo, useRef, useState} from 'react';
+import {memo, useMemo, useRef, useState} from 'react';
 import type {HandledKeyboardEvent} from '../../Components/View/ViewPropTypes';
 import View from '../View/View';
 
@@ -211,10 +211,13 @@ type Instance = React.ElementRef<typeof View>;
  * Component used to build display components that should respond to whether the
  * component is currently pressed or not.
  */
-function Pressable(
-  props: PressableProps,
-  forwardedRef: React.RefSetter<Instance>,
-): React.Node {
+function Pressable({
+  ref: forwardedRef,
+  ...props
+}: {
+  ref?: React.RefSetter<Instance>,
+  ...PressableProps,
+}): React.Node {
   const {
     accessible,
     accessibilityState,
@@ -398,7 +401,7 @@ function usePressState(forcePressed: boolean): [boolean, (boolean) => void] {
   return [pressed || forcePressed, setPressed];
 }
 
-const MemoedPressable = React.memo(React.forwardRef(Pressable));
+const MemoedPressable = memo(Pressable);
 MemoedPressable.displayName = 'Pressable';
 
 export default (MemoedPressable: component(

@@ -17,11 +17,23 @@ import Platform from '../../Utilities/Platform';
 
 export type {ProgressBarAndroidProps};
 
+// A utility type to preserve the semantics of the union uses in the definition
+// of ProgressBarAndroidProps. TS's Omit does not distribute over unions, so
+// we define our own version which does. This does not affect Flow.
+// $FlowExpectedError[unclear-type]
+type Omit<T, K> = T extends any ? Pick<T, Exclude<$Keys<T>, K>> : T;
+
+/**
+ * ProgressBarAndroid has been extracted from react-native core and will be removed in a future release.
+ * It can now be installed and imported from `@react-native-community/progress-bar-android` instead of 'react-native'.
+ * @see https://github.com/react-native-community/progress-bar-android
+ * @deprecated
+ */
 let ProgressBarAndroid: component(
   ref?: React.RefSetter<
     React.ElementRef<ProgressBarAndroidNativeComponentType>,
   >,
-  ...props: ProgressBarAndroidProps
+  ...props: Omit<ProgressBarAndroidProps, empty>
 );
 
 if (Platform.OS === 'android') {

@@ -16,11 +16,7 @@ import type {
 } from '../../Types/CoreEventTypes';
 import type {ViewProps} from '../View/ViewPropTypes';
 
-import {
-  type ColorValue,
-  type TextStyleProp,
-  type ViewStyleProp,
-} from '../../StyleSheet/StyleSheet';
+import {type ColorValue, type TextStyleProp} from '../../StyleSheet/StyleSheet';
 import * as React from 'react';
 
 /**