Release 0.78.0-rc.3

#publish-packages-to-npm&next
Add extra parameter to define whether codegen is invoked by lib or app (#48995 )
2025-11-01 09:14:26 +00:00 · 2025-02-03 17:46:38 +00:00 · 2025-02-03 15:29:11 +00:00 · 2025-02-03 15:27:52 +00:00 · 2025-02-03 15:27:44 +00:00 · 2025-02-03 15:27:39 +00:00
62 changed files with 792 additions and 433 deletions
@@ -20,8 +20,6 @@ runs:
    - name: Set React Native Version
      shell: bash
      run: node ./scripts/releases/set-rn-artifacts-version.js --build-type ${{ inputs.release-type }}
-      # We don't want to re-set the artifacts version if we're on the release branch.
-      if: ${{ !contains(github.ref, '-stable') }}
    - name: Setup gradle
      uses: ./.github/actions/setup-gradle
      with:
@@ -157,7 +157,7 @@ jobs:
          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}

  test_ios_rntester:
-    runs-on: macos-13
+    runs-on: macos-13-large
    needs:
      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos]
    env:
@@ -369,6 +369,11 @@ jobs:
            sed -i 's/newArchEnabled=true/newArchEnabled=false/' android/gradle.properties
          fi

+          if [[ ${{matrix.jsengine}} == "JSC" ]]; then
+            echo "Using JSC instead of Hermes"
+            sed -i 's/hermesEnabled=true/hermesEnabled=false/' android/gradle.properties
+          fi
+
          # Build
          cd android
          CAPITALIZED_FLAVOR=$(echo "${{ matrix.flavor }}" | awk '{print toupper(substr($0, 1, 1)) substr($0, 2)}')
@@ -6,3 +6,4 @@ ruby ">= 2.6.10"
 gem 'cocoapods', '~> 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'activesupport', '>= 6.1.7.5', '< 7.1.0'
 gem 'xcodeproj', '< 1.26.0'
+gem 'concurrent-ruby', '< 1.3.4'
@@ -49,8 +49,8 @@
    "@babel/preset-flow": "^7.24.7",
    "@definitelytyped/dtslint": "^0.0.127",
    "@jest/create-cache-key-function": "^29.6.3",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
-    "@react-native/metro-config": "0.77.0-main",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.3",
+    "@react-native/metro-config": "0.78.0-rc.3",
    "@tsconfig/node18": "1.0.1",
    "@types/react": "^19.0.0",
    "@typescript-eslint/parser": "^7.1.1",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/assets-registry",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Asset support code for React Native.",
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/babel-plugin-codegen",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Babel plugin to generate native module and view manager code for React Native.",
  "license": "MIT",
  "repository": {
@@ -26,7 +26,7 @@
  ],
  "dependencies": {
    "@babel/traverse": "^7.25.3",
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.3"
  },
  "devDependencies": {
    "@babel/core": "^7.25.2"
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/community-cli-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Core CLI commands for React Native",
  "keywords": [
    "react-native",
@@ -22,8 +22,8 @@
    "dist"
  ],
  "dependencies": {
-    "@react-native/dev-middleware": "0.77.0-main",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
+    "@react-native/dev-middleware": "0.78.0-rc.3",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.3",
    "chalk": "^4.0.0",
    "debug": "^2.2.0",
    "invariant": "^2.2.4",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/core-cli-utils",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "React Native CLI library for Frameworks to build on",
  "license": "MIT",
  "main": "./src/index.flow.js",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/debugger-frontend",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Debugger frontend for React Native based on Chrome DevTools",
  "keywords": [
    "react-native",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/dev-middleware",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Dev server middleware for React Native",
  "keywords": [
    "react-native",
@@ -23,11 +23,12 @@
  ],
  "dependencies": {
    "@isaacs/ttlcache": "^1.4.1",
-    "@react-native/debugger-frontend": "0.77.0-main",
+    "@react-native/debugger-frontend": "0.78.0-rc.3",
    "chrome-launcher": "^0.15.2",
    "chromium-edge-launcher": "^0.2.0",
    "connect": "^3.6.5",
    "debug": "^2.2.0",
+    "invariant": "^2.2.4",
    "nullthrows": "^1.1.1",
    "open": "^7.0.3",
    "selfsigned": "^2.4.1",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/eslint-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "ESLint config for React Native",
  "license": "MIT",
  "repository": {
@@ -22,7 +22,7 @@
  "dependencies": {
    "@babel/core": "^7.25.2",
    "@babel/eslint-parser": "^7.25.1",
-    "@react-native/eslint-plugin": "0.77.0-main",
+    "@react-native/eslint-plugin": "0.78.0-rc.3",
    "@typescript-eslint/eslint-plugin": "^7.1.1",
    "@typescript-eslint/parser": "^7.1.1",
    "eslint-config-prettier": "^8.5.0",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/eslint-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "ESLint rules for @react-native/eslint-config",
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/eslint-plugin-specs",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "ESLint rules to validate NativeModule and Component Specs",
  "license": "MIT",
  "repository": {
@@ -26,7 +26,7 @@
  "dependencies": {
    "@babel/core": "^7.25.2",
    "@babel/plugin-transform-flow-strip-types": "^7.25.2",
-    "@react-native/codegen": "0.77.0-main",
+    "@react-native/codegen": "0.78.0-rc.3",
    "make-dir": "^2.1.0",
    "pirates": "^4.0.1",
    "source-map-support": "0.5.0"
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/gradle-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Gradle Plugin for React Native",
  "license": "MIT",
  "repository": {
@@ -5,3 +5,4 @@ ruby ">= 2.6.10"
 gem 'cocoapods', '~> 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'activesupport', '>= 6.1.7.5', '< 7.1.0'
 gem 'xcodeproj', '< 1.26.0'
+gem 'concurrent-ruby', '< 1.3.4'
@@ -1,6 +1,6 @@
 {
  "name": "helloworld",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "private": true,
  "scripts": {
    "bootstrap": "node ./cli.js bootstrap",
@@ -13,16 +13,16 @@
  },
  "dependencies": {
    "react": "19.0.0",
-    "react-native": "1000.0.0"
+    "react-native": "0.78.0-rc.3"
  },
  "devDependencies": {
    "@babel/core": "^7.25.2",
    "@babel/preset-env": "^7.25.3",
    "@babel/runtime": "^7.25.0",
-    "@react-native/babel-preset": "0.77.0-main",
-    "@react-native/core-cli-utils": "0.77.0-main",
-    "@react-native/eslint-config": "0.77.0-main",
-    "@react-native/metro-config": "0.77.0-main",
+    "@react-native/babel-preset": "0.78.0-rc.3",
+    "@react-native/core-cli-utils": "0.78.0-rc.3",
+    "@react-native/eslint-config": "0.78.0-rc.3",
+    "@react-native/metro-config": "0.78.0-rc.3",
    "chalk": "^4.1.2",
    "commander": "^12.0.0",
    "eslint": "^8.19.0",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/metro-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Metro configuration for React Native.",
  "license": "MIT",
  "repository": {
@@ -26,8 +26,8 @@
    "dist"
  ],
  "dependencies": {
-    "@react-native/js-polyfills": "0.77.0-main",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
+    "@react-native/js-polyfills": "0.78.0-rc.3",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.3",
    "metro-config": "^0.81.0",
    "metro-runtime": "^0.81.0"
  }
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/normalize-colors",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Color normalization for React Native.",
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/js-polyfills",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Polyfills for React Native.",
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/babel-preset",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Babel preset for React Native applications",
  "main": "src/index.js",
  "repository": {
@@ -55,7 +55,7 @@
    "@babel/plugin-transform-typescript": "^7.25.2",
    "@babel/plugin-transform-unicode-regex": "^7.24.7",
    "@babel/template": "^7.25.0",
-    "@react-native/babel-plugin-codegen": "0.77.0-main",
+    "@react-native/babel-plugin-codegen": "0.78.0-rc.3",
    "babel-plugin-syntax-hermes-parser": "0.25.1",
    "babel-plugin-transform-flow-enums": "^0.0.2",
    "react-refresh": "^0.14.0"
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/metro-babel-transformer",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Babel transformer for React Native applications.",
  "main": "src/index.js",
  "repository": {
@@ -16,7 +16,7 @@
  "license": "MIT",
  "dependencies": {
    "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.77.0-main",
+    "@react-native/babel-preset": "0.78.0-rc.3",
    "hermes-parser": "0.25.1",
    "nullthrows": "^1.1.1"
  },
@@ -1,7 +1,7 @@
 {
  "name": "@react-native/bots",
  "description": "React Native Bots",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "private": true,
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/codegen-typescript-test",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "private": true,
  "description": "TypeScript related unit test for @react-native/codegen",
  "license": "MIT",
@@ -19,7 +19,7 @@
    "prepare": "yarn run build"
  },
  "dependencies": {
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.3"
  },
  "devDependencies": {
    "@babel/core": "^7.25.2",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/codegen",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Code generation tools for React Native",
  "license": "MIT",
  "repository": {
@@ -1,11 +1,11 @@
 {
-   "name": "@react-native/fantom",
-   "private": true,
-   "version": "0.77.0-main",
-   "main": "src/index.js",
-   "description": "Internal integration testing and benchmarking tool for React Native",
-   "peerDependencies":{
-      "jest":"^29.7.0",
-      "jest-snapshot": "^29.7.0"
-   }
+  "name": "@react-native/fantom",
+  "private": true,
+  "version": "0.78.0-rc.3",
+  "main": "src/index.js",
+  "description": "Internal integration testing and benchmarking tool for React Native",
+  "peerDependencies": {
+    "jest": "^29.7.0",
+    "jest-snapshot": "^29.7.0"
+  }
 }
@@ -1,6 +1,6 @@
 {
  "name": "react-native-info",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "main": "build/index.js",
  "license": "MIT",
  "private": true,
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/popup-menu-android",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "PopupMenu for the Android platform",
  "main": "index.js",
  "files": [
@@ -17,7 +17,7 @@
  ],
  "license": "MIT",
  "devDependencies": {
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.3"
  },
  "peerDependencies": {
    "@types/react": "^19.0.0",
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/oss-library-example",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "private": true,
  "description": "Package that includes native module exapmle, native component example, targets both the old and the new architecture. It should serve as an example of a real-world OSS library.",
  "license": "MIT",
@@ -26,8 +26,8 @@
  ],
  "devDependencies": {
    "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.77.0-main",
-    "react-native": "1000.0.0"
+    "@react-native/babel-preset": "0.78.0-rc.3",
+    "react-native": "0.78.0-rc.3"
  },
  "peerDependencies": {
    "react": "*",
@@ -9,6 +9,7 @@
 */

 import type {EventSubscription} from '../../vendor/emitter/EventEmitter';
+import type {PlatformConfig} from '../AnimatedPlatformConfig';
 import type Animation, {EndCallback} from '../animations/Animation';
 import type {InterpolationConfigType} from './AnimatedInterpolation';
 import type AnimatedNode from './AnimatedNode';
@@ -84,6 +85,7 @@ function _executeAsAnimatedBatch(id: string, operation: () => void) {
 * See https://reactnative.dev/docs/animatedvalue
 */
 export default class AnimatedValue extends AnimatedWithChildren {
+  #attached: boolean = false;
  #updateSubscription: ?EventSubscription = null;

  _value: number;
@@ -106,14 +108,8 @@ export default class AnimatedValue extends AnimatedWithChildren {
  }

  __attach(): void {
-    if (this.__isNative) {
-      // NOTE: In theory, we should only need to call this when any listeners
-      // are added. However, there is a global `onUserDrivenAnimationEnded`
-      // listener that relies on `onAnimatedValueUpdate` having fired to update
-      // the values in JavaScript. If that listener is removed, this could be
-      // re-optimized.
-      this.#ensureUpdateSubscriptionExists();
-    }
+    this.#attached = true;
+    this.#ensureUpdateSubscriptionExists();
  }

  __detach(): void {
@@ -125,16 +121,34 @@ export default class AnimatedValue extends AnimatedWithChildren {
    }
    this.stopAnimation();
    super.__detach();
+    this.#attached = false;
  }

  __getValue(): number {
    return this._value + this._offset;
  }

+  __makeNative(platformConfig: ?PlatformConfig): void {
+    super.__makeNative(platformConfig);
+    this.#ensureUpdateSubscriptionExists();
+  }
+
+  /**
+   * NOTE: In theory, we should only need to call this when any listeners
+   * are added. However, there is a global `onUserDrivenAnimationEnded`
+   * listener that relies on `onAnimatedValueUpdate` having fired to update
+   * the values in JavaScript. If that listener is removed, this could be
+   * re-optimized.
+   */
  #ensureUpdateSubscriptionExists(): void {
    if (this.#updateSubscription != null) {
      return;
    }
+    // The order in which `__attach` and `__makeNative` are called is not
+    // deterministic, and we only want to do this when both have occurred.
+    if (!this.#attached || !this.__isNative) {
+      return;
+    }
    const nativeTag = this.__getNativeTag();
    NativeAnimatedAPI.startListeningToAnimatedNodeValue(nativeTag);
    const subscription: EventSubscription =
@@ -276,6 +276,20 @@ function useAnimatedPropsLifecycle_insertionEffects(node: AnimatedProps): void {
    // if the queue is empty. When multiple animated components are mounted at
    // the same time. Only first component flushes the queue and the others will noop.
    NativeAnimatedHelper.API.flushQueue();
+    let drivenAnimationEndedListener: ?EventSubscription = null;
+    if (node.__isNative) {
+      drivenAnimationEndedListener =
+        NativeAnimatedHelper.nativeEventEmitter.addListener(
+          'onUserDrivenAnimationEnded',
+          data => {
+            node.update();
+          },
+        );
+    }
+
+    return () => {
+      drivenAnimationEndedListener?.remove();
+    };
  });

  useInsertionEffect(() => {
@@ -287,17 +301,6 @@ function useAnimatedPropsLifecycle_insertionEffects(node: AnimatedProps): void {

  useInsertionEffect(() => {
    node.__attach();
-    let drivenAnimationEndedListener: ?EventSubscription = null;
-
-    if (node.__isNative) {
-      drivenAnimationEndedListener =
-        NativeAnimatedHelper.nativeEventEmitter.addListener(
-          'onUserDrivenAnimationEnded',
-          data => {
-            node.update();
-          },
-        );
-    }
    if (prevNodeRef.current != null) {
      const prevNode = prevNodeRef.current;
      // TODO: Stop restoring default values (unless `reset` is called).
@@ -312,8 +315,6 @@ function useAnimatedPropsLifecycle_insertionEffects(node: AnimatedProps): void {
      } else {
        prevNodeRef.current = node;
      }
-
-      drivenAnimationEndedListener?.remove();
    };
  }, [node]);
 }
@@ -14,10 +14,10 @@ const version: $ReadOnly<{
  patch: number,
  prerelease: string | null,
 }> = {
-  major: 1000,
-  minor: 0,
+  major: 0,
+  minor: 78,
  patch: 0,
-  prerelease: null,
+  prerelease: 'rc.3',
 };

 module.exports = {version};
@@ -477,7 +477,15 @@ static UIImage *RCTResizeImageIfNeeded(UIImage *image, CGSize size, CGFloat scal

    // Add missing png extension
    if (request.URL.fileURL && request.URL.pathExtension.length == 0) {
-      mutableRequest.URL = [request.URL URLByAppendingPathExtension:@"png"];
+      // Check if there exists a file with that url on disk already
+      // This should fix issue https://github.com/facebook/react-native/issues/46870
+      if ([[NSFileManager defaultManager] fileExistsAtPath:request.URL.path]) {
+        mutableRequest.URL = request.URL;
+      } else {
+        // This is the default behavior in case there is no file on disk with no extension.
+        // We assume that the extension is `png`.
+        mutableRequest.URL = [request.URL URLByAppendingPathExtension:@"png"];
+      }
    }
    if (_redirectDelegate != nil) {
      mutableRequest.URL = [_redirectDelegate redirectAssetsURL:mutableRequest.URL];
@@ -1169,6 +1169,7 @@ declare export default class AnimatedValue extends AnimatedWithChildren {
  __attach(): void;
  __detach(): void;
  __getValue(): number;
+  __makeNative(platformConfig: ?PlatformConfig): void;
  setValue(value: number): void;
  setOffset(offset: number): void;
  flattenOffset(): void;
@@ -21,10 +21,10 @@ NSDictionary* RCTGetReactNativeVersion(void)
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^(void){
    __rnVersion = @{
-                  RCTVersionMajor: @(1000),
-                  RCTVersionMinor: @(0),
+                  RCTVersionMajor: @(0),
+                  RCTVersionMinor: @(78),
                  RCTVersionPatch: @(0),
-                  RCTVersionPrerelease: [NSNull null],
+                  RCTVersionPrerelease: @"rc.3",
                  };
  });
  return __rnVersion;
@@ -2215,7 +2215,7 @@ public abstract interface class com/facebook/react/devsupport/HMRClient : com/fa
 	public abstract fun disable ()V
 	public abstract fun enable ()V
 	public abstract fun registerBundle (Ljava/lang/String;)V
-	public abstract fun setup (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IZ)V
+	public abstract fun setup (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IZLjava/lang/String;)V
 }

 public final class com/facebook/react/devsupport/InspectorFlags {
@@ -7342,6 +7342,7 @@ public class com/facebook/react/views/text/TextAttributeProps {
 	public static final field TA_KEY_LETTER_SPACING S
 	public static final field TA_KEY_LINE_BREAK_STRATEGY S
 	public static final field TA_KEY_LINE_HEIGHT S
+	public static final field TA_KEY_MAX_FONT_SIZE_MULTIPLIER S
 	public static final field TA_KEY_OPACITY S
 	public static final field TA_KEY_ROLE S
 	public static final field TA_KEY_TEXT_DECORATION_COLOR S
@@ -7374,6 +7375,7 @@ public class com/facebook/react/views/text/TextAttributeProps {
 	protected field mLetterSpacingInput F
 	protected field mLineHeight F
 	protected field mLineHeightInput F
+	protected field mMaxFontSizeMultiplier F
 	protected field mNumberOfLines I
 	protected field mOpacity F
 	protected field mRole Lcom/facebook/react/uimanager/ReactAccessibilityDelegate$Role;
@@ -1,4 +1,4 @@
-VERSION_NAME=1000.0.0
+VERSION_NAME=0.78.0-rc.3
 react.internal.publishingGroup=com.facebook.react

 android.useAndroidX=true
@@ -685,10 +685,12 @@ public abstract class DevSupportManagerBase implements DevSupportManager {
        URL sourceUrl = new URL(getSourceUrl());
        String path = sourceUrl.getPath().substring(1); // strip initial slash in path
        String host = sourceUrl.getHost();
+        String scheme = sourceUrl.getProtocol();
        int port = sourceUrl.getPort() != -1 ? sourceUrl.getPort() : sourceUrl.getDefaultPort();
        mCurrentReactContext
            .getJSModule(HMRClient.class)
-            .setup("android", path, host, port, mDevSettings.isHotModuleReplacementEnabled());
+            .setup(
+                "android", path, host, port, mDevSettings.isHotModuleReplacementEnabled(), scheme);
      } catch (MalformedURLException e) {
        showNewJavaError(e.getMessage(), e);
      }
@@ -26,8 +26,11 @@ public interface HMRClient extends JavaScriptModule {
   * @param host The host that the HMRClient should communicate with.
   * @param port The port that the HMRClient should communicate with on the host.
   * @param isEnabled Whether HMR is enabled initially.
+   * @param scheme The protocol that the HMRClient should communicate with on the host (defaults to
+   *     http).
   */
-  void setup(String platform, String bundleEntry, String host, int port, boolean isEnabled);
+  void setup(
+      String platform, String bundleEntry, String host, int port, boolean isEnabled, String scheme);

  /** Registers an additional JS bundle with HMRClient. */
  void registerBundle(String bundleUrl);
@@ -15,8 +15,8 @@ import java.util.Map;

 public class ReactNativeVersion {
  public static final Map<String, Object> VERSION = MapBuilder.<String, Object>of(
-      "major", 1000,
-      "minor", 0,
+      "major", 0,
+      "minor", 78,
      "patch", 0,
-      "prerelease", null);
+      "prerelease", "rc.3");
 }
@@ -61,6 +61,7 @@ public class TextAttributeProps {
  public static final short TA_KEY_LINE_BREAK_STRATEGY = 25;
  public static final short TA_KEY_ROLE = 26;
  public static final short TA_KEY_TEXT_TRANSFORM = 27;
+  public static final short TA_KEY_MAX_FONT_SIZE_MULTIPLIER = 29;

  public static final int UNSET = -1;

@@ -81,6 +82,7 @@ public class TextAttributeProps {
  protected float mLineHeight = Float.NaN;
  protected boolean mIsColorSet = false;
  protected boolean mAllowFontScaling = true;
+  protected float mMaxFontSizeMultiplier = Float.NaN;
  protected int mColor;
  protected boolean mIsBackgroundColorSet = false;
  protected int mBackgroundColor;
@@ -227,6 +229,9 @@ public class TextAttributeProps {
        case TA_KEY_TEXT_TRANSFORM:
          result.setTextTransform(entry.getStringValue());
          break;
+        case TA_KEY_MAX_FONT_SIZE_MULTIPLIER:
+          result.setMaxFontSizeMultiplier((float) entry.getDoubleValue());
+          break;
      }
    }

@@ -243,6 +248,8 @@ public class TextAttributeProps {
    result.setLineHeight(getFloatProp(props, ViewProps.LINE_HEIGHT, ReactConstants.UNSET));
    result.setLetterSpacing(getFloatProp(props, ViewProps.LETTER_SPACING, Float.NaN));
    result.setAllowFontScaling(getBooleanProp(props, ViewProps.ALLOW_FONT_SCALING, true));
+    result.setMaxFontSizeMultiplier(
+        getFloatProp(props, ViewProps.MAX_FONT_SIZE_MULTIPLIER, Float.NaN));
    result.setFontSize(getFloatProp(props, ViewProps.FONT_SIZE, ReactConstants.UNSET));
    result.setColor(props.hasKey(ViewProps.COLOR) ? props.getInt(ViewProps.COLOR, 0) : null);
    result.setColor(
@@ -411,7 +418,14 @@ public class TextAttributeProps {
      mAllowFontScaling = allowFontScaling;
      setFontSize(mFontSizeInput);
      setLineHeight(mLineHeightInput);
-      setLetterSpacing(mLetterSpacingInput);
+    }
+  }
+
+  private void setMaxFontSizeMultiplier(float maxFontSizeMultiplier) {
+    if (maxFontSizeMultiplier != mMaxFontSizeMultiplier) {
+      mMaxFontSizeMultiplier = maxFontSizeMultiplier;
+      setFontSize(mFontSizeInput);
+      setLineHeight(mLineHeightInput);
    }
  }

@@ -420,7 +434,7 @@ public class TextAttributeProps {
    if (fontSize != ReactConstants.UNSET) {
      fontSize =
          mAllowFontScaling
-              ? (float) Math.ceil(PixelUtil.toPixelFromSP(fontSize))
+              ? (float) Math.ceil(PixelUtil.toPixelFromSP(fontSize, mMaxFontSizeMultiplier))
              : (float) Math.ceil(PixelUtil.toPixelFromDIP(fontSize));
    }
    mFontSize = (int) fontSize;
@@ -15,10 +15,10 @@
 namespace facebook::react {

 constexpr struct {
-  int32_t Major = 1000;
-  int32_t Minor = 0;
+  int32_t Major = 0;
+  int32_t Minor = 78;
  int32_t Patch = 0;
-  std::string_view Prerelease = "";
+  std::string_view Prerelease = "rc.3";
 } ReactNativeVersion;

 } // namespace facebook::react
@@ -46,6 +46,9 @@ void TextAttributes::apply(TextAttributes textAttributes) {
  allowFontScaling = textAttributes.allowFontScaling.has_value()
      ? textAttributes.allowFontScaling
      : allowFontScaling;
+  maxFontSizeMultiplier = !std::isnan(textAttributes.maxFontSizeMultiplier)
+      ? textAttributes.maxFontSizeMultiplier
+      : maxFontSizeMultiplier;
  dynamicTypeRamp = textAttributes.dynamicTypeRamp.has_value()
      ? textAttributes.dynamicTypeRamp
      : dynamicTypeRamp;
@@ -168,6 +171,7 @@ bool TextAttributes::operator==(const TextAttributes& rhs) const {
             rhs.accessibilityRole,
             rhs.role,
             rhs.textTransform) &&
+      floatEquality(maxFontSizeMultiplier, rhs.maxFontSizeMultiplier) &&
      floatEquality(opacity, rhs.opacity) &&
      floatEquality(fontSize, rhs.fontSize) &&
      floatEquality(fontSizeMultiplier, rhs.fontSizeMultiplier) &&
@@ -224,6 +228,10 @@ SharedDebugStringConvertibleList TextAttributes::getDebugProps() const {
          "allowFontScaling",
          allowFontScaling,
          textAttributes.allowFontScaling),
+      debugStringConvertibleItem(
+          "maxFontSizeMultiplier",
+          maxFontSizeMultiplier,
+          textAttributes.maxFontSizeMultiplier),
      debugStringConvertibleItem(
          "dynamicTypeRamp", dynamicTypeRamp, textAttributes.dynamicTypeRamp),
      debugStringConvertibleItem(
@@ -51,6 +51,7 @@ class TextAttributes : public DebugStringConvertible {
  std::optional<FontStyle> fontStyle{};
  std::optional<FontVariant> fontVariant{};
  std::optional<bool> allowFontScaling{};
+  Float maxFontSizeMultiplier{std::numeric_limits<Float>::quiet_NaN()};
  std::optional<DynamicTypeRamp> dynamicTypeRamp{};
  Float letterSpacing{std::numeric_limits<Float>::quiet_NaN()};
  std::optional<TextTransform> textTransform{};
@@ -117,6 +118,7 @@ struct hash<facebook::react::TextAttributes> {
        textAttributes.opacity,
        textAttributes.fontFamily,
        textAttributes.fontSize,
+        textAttributes.maxFontSizeMultiplier,
        textAttributes.fontSizeMultiplier,
        textAttributes.fontWeight,
        textAttributes.fontStyle,
@@ -910,6 +910,7 @@ constexpr static MapBuffer::Key TA_KEY_LINE_BREAK_STRATEGY = 25;
 constexpr static MapBuffer::Key TA_KEY_ROLE = 26;
 constexpr static MapBuffer::Key TA_KEY_TEXT_TRANSFORM = 27;
 constexpr static MapBuffer::Key TA_KEY_ALIGNMENT_VERTICAL = 28;
+constexpr static MapBuffer::Key TA_KEY_MAX_FONT_SIZE_MULTIPLIER = 29;

 // constants for ParagraphAttributes serialization
 constexpr static MapBuffer::Key PA_KEY_MAX_NUMBER_OF_LINES = 0;
@@ -1004,6 +1005,10 @@ inline MapBuffer toMapBuffer(const TextAttributes& textAttributes) {
    builder.putBool(
        TA_KEY_ALLOW_FONT_SCALING, *textAttributes.allowFontScaling);
  }
+  if (!std::isnan(textAttributes.maxFontSizeMultiplier)) {
+    builder.putDouble(
+        TA_KEY_MAX_FONT_SIZE_MULTIPLIER, textAttributes.maxFontSizeMultiplier);
+  }
  if (!std::isnan(textAttributes.letterSpacing)) {
    builder.putDouble(TA_KEY_LETTER_SPACING, textAttributes.letterSpacing);
  }
@@ -73,6 +73,12 @@ static TextAttributes convertRawProp(
      "allowFontScaling",
      sourceTextAttributes.allowFontScaling,
      defaultTextAttributes.allowFontScaling);
+  textAttributes.maxFontSizeMultiplier = convertRawProp(
+      context,
+      rawProps,
+      "maxFontSizeMultiplier",
+      sourceTextAttributes.maxFontSizeMultiplier,
+      defaultTextAttributes.maxFontSizeMultiplier);
  textAttributes.dynamicTypeRamp = convertRawProp(
      context,
      rawProps,
@@ -266,6 +272,12 @@ void BaseTextProps::setProp(
        defaults, value, textAttributes, fontVariant, "fontVariant");
    REBUILD_FIELD_SWITCH_CASE(
        defaults, value, textAttributes, allowFontScaling, "allowFontScaling");
+    REBUILD_FIELD_SWITCH_CASE(
+        defaults,
+        value,
+        textAttributes,
+        maxFontSizeMultiplier,
+        "maxFontSizeMultiplier");
    REBUILD_FIELD_SWITCH_CASE(
        defaults, value, textAttributes, letterSpacing, "letterSpacing");
    REBUILD_FIELD_SWITCH_CASE(
@@ -135,6 +135,7 @@ inline static CGFloat RCTBaseSizeForDynamicTypeRamp(const DynamicTypeRamp &dynam
 inline static CGFloat RCTEffectiveFontSizeMultiplierFromTextAttributes(const TextAttributes &textAttributes)
 {
  if (textAttributes.allowFontScaling.value_or(true)) {
+    CGFloat fontSizeMultiplier = !isnan(textAttributes.fontSizeMultiplier) ? textAttributes.fontSizeMultiplier : 1.0;
    if (textAttributes.dynamicTypeRamp.has_value()) {
      DynamicTypeRamp dynamicTypeRamp = textAttributes.dynamicTypeRamp.value();
      UIFontMetrics *fontMetrics =
@@ -142,10 +143,11 @@ inline static CGFloat RCTEffectiveFontSizeMultiplierFromTextAttributes(const Tex
      // Using a specific font size reduces rounding errors from -scaledValueForValue:
      CGFloat requestedSize =
          isnan(textAttributes.fontSize) ? RCTBaseSizeForDynamicTypeRamp(dynamicTypeRamp) : textAttributes.fontSize;
-      return [fontMetrics scaledValueForValue:requestedSize] / requestedSize;
-    } else {
-      return textAttributes.fontSizeMultiplier;
+      fontSizeMultiplier = [fontMetrics scaledValueForValue:requestedSize] / requestedSize;
    }
+    CGFloat maxFontSizeMultiplier =
+        !isnan(textAttributes.maxFontSizeMultiplier) ? textAttributes.maxFontSizeMultiplier : 0.0;
+    return maxFontSizeMultiplier >= 1.0 ? fminf(maxFontSizeMultiplier, fontSizeMultiplier) : fontSizeMultiplier;
  } else {
    return 1.0;
  }
@@ -1,6 +1,6 @@
 {
  "name": "react-native",
-  "version": "1000.0.0",
+  "version": "0.78.0-rc.3",
  "description": "A framework for building native apps using React",
  "license": "MIT",
  "repository": {
@@ -108,13 +108,13 @@
  },
  "dependencies": {
    "@jest/create-cache-key-function": "^29.6.3",
-    "@react-native/assets-registry": "0.77.0-main",
-    "@react-native/codegen": "0.77.0-main",
-    "@react-native/community-cli-plugin": "0.77.0-main",
-    "@react-native/gradle-plugin": "0.77.0-main",
-    "@react-native/js-polyfills": "0.77.0-main",
-    "@react-native/normalize-colors": "0.77.0-main",
-    "@react-native/virtualized-lists": "0.77.0-main",
+    "@react-native/assets-registry": "0.78.0-rc.3",
+    "@react-native/codegen": "0.78.0-rc.3",
+    "@react-native/community-cli-plugin": "0.78.0-rc.3",
+    "@react-native/gradle-plugin": "0.78.0-rc.3",
+    "@react-native/js-polyfills": "0.78.0-rc.3",
+    "@react-native/normalize-colors": "0.78.0-rc.3",
+    "@react-native/virtualized-lists": "0.78.0-rc.3",
    "abort-controller": "^3.0.0",
    "anser": "^1.4.9",
    "ansi-regex": "^5.0.0",
@@ -84,12 +84,18 @@ const codegenCommand = {
      name: '--outputPath <path>',
      description: 'Path where generated artifacts will be output to.',
    },
+    {
+      name: '--source <string>',
+      description: 'Whether the script is invoked from an `app` or a `library`',
+      default: 'app',
+    },
  ],
  func: (argv, config, args) =>
    require('./scripts/codegen/generate-artifacts-executor').execute(
      args.path,
      args.platform,
      args.outputPath,
+      args.source,
    ),
 };

@@ -899,11 +899,12 @@ function generateFBReactNativeSpecIOS(projectRoot /*: string */) /*: void*/ {
 * @parameter projectRoot: the directory with the app source code, where the package.json lives.
 * @parameter baseOutputPath: the base output path for the CodeGen.
 * @parameter targetPlatform: the target platform. Supported values: 'android', 'ios', 'all'.
+ * @parameter source: the source that is invoking codegen. Supported values: 'app', 'library'.
 * @throws If it can't find a config file for react-native.
 * @throws If it can't find a CodeGen configuration in the file.
 * @throws If it can't find a cli for the CodeGen.
 */
-function execute(projectRoot, targetPlatform, baseOutputPath) {
+function execute(projectRoot, targetPlatform, baseOutputPath, source) {
  try {
    codegenLog(`Analyzing ${path.join(projectRoot, 'package.json')}`);

@@ -951,9 +952,12 @@ function execute(projectRoot, targetPlatform, baseOutputPath) {
        platform,
      );

-      generateRCTThirdPartyComponents(libraries, outputPath);
-      generateCustomURLHandlers(libraries, outputPath);
-      generateAppDependencyProvider(outputPath);
+      if (source === 'app') {
+        // These components are only required by apps, not by libraries
+        generateRCTThirdPartyComponents(libraries, outputPath);
+        generateCustomURLHandlers(libraries, outputPath);
+        generateAppDependencyProvider(outputPath);
+      }

      cleanupEmptyFilesAndFolders(outputPath);
    }
@@ -25,7 +25,12 @@ const argv = yargs
    alias: 'outputPath',
    description: 'Path where generated artifacts will be output to.',
  })
+  .option('s', {
+    alias: 'source',
+    description: 'Whether the script is invoked from an `app` or a `library`',
+    default: 'app',
+  })
  .usage('Usage: $0 -p [path to app] -t [target platform] -o [output path]')
  .demandOption(['p', 't']).argv;

-executor.execute(argv.path, argv.targetPlatform, argv.outputPath);
+executor.execute(argv.path, argv.targetPlatform, argv.outputPath, argv.source);
@@ -0,0 +1 @@
+hermes-2025-01-13-RNv0.78.0-a942ef374897d85da38e9c8904574f8376555388
@@ -9,3 +9,4 @@ gem 'cocoapods', '~> 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'rexml'
 gem 'activesupport', '>= 6.1.7.5', '< 7.1.0'
 gem 'xcodeproj', '< 1.26.0'
+gem 'concurrent-ruby', '< 1.3.4'
@@ -482,6 +482,37 @@ function AllowFontScalingExample(props: {}): React.Node {
  );
 }

+function MaxFontSizeMultiplierExample(props: {}): React.Node {
+  return (
+    <View testID={'max-font-size-multiplier'}>
+      <Text>
+        When allowFontScaling is enabled, you can use the maxFontSizeMultiplier
+        prop to set an upper limit on how much the font size will be scaled.
+      </Text>
+      <Text
+        allowFontScaling={true}
+        maxFontSizeMultiplier={1}
+        style={{marginTop: 10}}>
+        This text will not scale up (max 1x)
+      </Text>
+      <Text allowFontScaling={true} maxFontSizeMultiplier={1.5}>
+        This text will scale up (max 1.5x)
+      </Text>
+      <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+        <Text>Inherit max (max 1x)</Text>
+      </Text>
+      <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+        <Text maxFontSizeMultiplier={1.5}>
+          Override inherited max (max 1.5x)
+        </Text>
+      </Text>
+      <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+        <Text maxFontSizeMultiplier={0}>Ignore inherited max (no max)</Text>
+      </Text>
+    </View>
+  );
+}
+
 function NumberOfLinesExample(props: {}): React.Node {
  return (
    <>
@@ -1462,6 +1493,13 @@ const examples = [
      return <AllowFontScalingExample />;
    },
  },
+  {
+    title: 'maxFontSizeMultiplier attribute',
+    name: 'maxFontSizeMultiplier',
+    render(): React.Node {
+      return <MaxFontSizeMultiplierExample />;
+    },
+  },
  {
    title: 'selectable attribute',
    name: 'selectable',
@@ -1175,6 +1175,62 @@ const examples = [
      );
    },
  },
+  {
+    title: 'maxFontSizeMultiplier attribute',
+    name: 'maxFontSizeMultiplier',
+    render(): React.Node {
+      return (
+        <View testID={'max-font-size-multiplier'}>
+          <Text>
+            When allowFontScaling is enabled, you can use the
+            maxFontSizeMultiplier prop to set an upper limit on how much the
+            font size will be scaled.
+          </Text>
+          <Text
+            allowFontScaling={true}
+            maxFontSizeMultiplier={1}
+            style={{marginTop: 10}}>
+            This text will not scale up (max 1x)
+          </Text>
+          <Text allowFontScaling={true} maxFontSizeMultiplier={1.5}>
+            This text will scale up (max 1.5x)
+          </Text>
+          <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+            <Text>Inherit max (max 1x)</Text>
+          </Text>
+          <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+            <Text maxFontSizeMultiplier={1.5}>
+              Override inherited max (max 1.5x)
+            </Text>
+          </Text>
+          <Text allowFontScaling={true} maxFontSizeMultiplier={1}>
+            <Text maxFontSizeMultiplier={0}>Ignore inherited max (no max)</Text>
+          </Text>
+          <Text
+            allowFontScaling={true}
+            style={{fontSize: 22}}
+            dynamicTypeRamp="title2">
+            This text will scale with 'title2' dynamic type ramp (no max)
+          </Text>
+          <Text
+            allowFontScaling={true}
+            style={{fontSize: 22}}
+            dynamicTypeRamp="title2"
+            maxFontSizeMultiplier={1.2}>
+            This text will scale with 'title2' dynamic type ramp (max 1.2x)
+          </Text>
+          <Text
+            allowFontScaling={true}
+            style={{fontSize: 22}}
+            dynamicTypeRamp="title2"
+            maxFontSizeMultiplier={1}>
+            This text uses 'title2' dynamic type ramp but will not scale up (max
+            1x)
+          </Text>
+        </View>
+      );
+    },
+  },
  {
    title: 'Inline views',
    render: (): React.Node => <TextInlineView.Basic />,
@@ -1440,9 +1496,27 @@ const examples = [
            <Text style={{fontSize: 20}} dynamicTypeRamp="title3">
              Title 3
            </Text>
+            <Text style={{fontSize: 17}} dynamicTypeRamp="headline">
+              Headline
+            </Text>
            <Text style={{fontSize: 17}} dynamicTypeRamp="body">
              Body
            </Text>
+            <Text style={{fontSize: 16}} dynamicTypeRamp="callout">
+              Callout
+            </Text>
+            <Text style={{fontSize: 15}} dynamicTypeRamp="subheadline">
+              Subheadline
+            </Text>
+            <Text style={{fontSize: 13}} dynamicTypeRamp="footnote">
+              Footnote
+            </Text>
+            <Text style={{fontSize: 12}} dynamicTypeRamp="caption1">
+              Caption
+            </Text>
+            <Text style={{fontSize: 11}} dynamicTypeRamp="caption2">
+              Caption 2
+            </Text>
          </View>
          <View style={boxStyle}>
            <Text style={boldStyle}>Without `dynamicTypeRamp`:</Text>
@@ -1450,7 +1524,13 @@ const examples = [
            <Text style={{fontSize: 28}}>Title</Text>
            <Text style={{fontSize: 22}}>Title 2</Text>
            <Text style={{fontSize: 20}}>Title 3</Text>
+            <Text style={{fontSize: 17}}>Headline</Text>
            <Text style={{fontSize: 17}}>Body</Text>
+            <Text style={{fontSize: 16}}>Callout</Text>
+            <Text style={{fontSize: 15}}>Subheadline</Text>
+            <Text style={{fontSize: 13}}>Footnote</Text>
+            <Text style={{fontSize: 12}}>Caption</Text>
+            <Text style={{fontSize: 11}}>Caption 2</Text>
          </View>
        </View>
      );
@@ -305,6 +305,59 @@ const examples: Array<RNTesterModuleExample> = [
      );
    },
  },
+  {
+    title: 'allowFontScaling attribute',
+    render: function (): React.Node {
+      return (
+        <View>
+          <Text>
+            By default, text will respect Text Size accessibility setting on
+            Android. It means that all font sizes will be increased or decreased
+            depending on the value of the Text Size setting in the OS's Settings
+            app.
+          </Text>
+          <ExampleTextInput
+            placeholder="allowFontScaling = false"
+            allowFontScaling={false}
+          />
+          <ExampleTextInput
+            style={{marginTop: 10}}
+            placeholder="allowFontScaling = false"
+            allowFontScaling={true}
+          />
+        </View>
+      );
+    },
+  },
+  {
+    title: 'maxFontSizeMultiplier attribute',
+    name: 'maxFontSizeMultiplier',
+    render(): React.Node {
+      return (
+        <View testID={'max-font-size-multiplier'}>
+          <Text>
+            When allowFontScaling is enabled, you can use the
+            maxFontSizeMultiplier prop to set an upper limit on how much the
+            font size will be scaled.
+          </Text>
+          <ExampleTextInput
+            allowFontScaling={true}
+            maxFontSizeMultiplier={1}
+            placeholder="This text will not scale up (max 1x)"
+            style={{marginTop: 10}}
+            testID={'non-scalable-text-input'}
+          />
+          <ExampleTextInput
+            allowFontScaling={true}
+            maxFontSizeMultiplier={1.5}
+            placeholder="This text will scale up (max 1.5x)"
+            style={{marginTop: 10}}
+            testID={'scalable-text-input'}
+          />
+        </View>
+      );
+    },
+  },
  {
    title: 'Text Auto Complete',
    render: function (): React.Node {
@@ -730,6 +730,61 @@ const textInputExamples: Array<RNTesterModuleExample> = [
      );
    },
  },
+  {
+    title: 'allowFontScaling attribute',
+    render: function (): React.Node {
+      return (
+        <View>
+          <Text>
+            By default, text will respect Text Size accessibility setting on
+            iOS. It means that all font sizes will be increased or decreased
+            depending on the value of Text Size setting in{' '}
+            <Text style={{fontWeight: 'bold'}}>
+              Settings.app - Display & Brightness - Text Size
+            </Text>
+          </Text>
+          <ExampleTextInput
+            placeholder="allowFontScaling = false"
+            allowFontScaling={false}
+          />
+          <ExampleTextInput
+            style={{marginTop: 10}}
+            placeholder="allowFontScaling = false"
+            allowFontScaling={true}
+          />
+        </View>
+      );
+    },
+  },
+  {
+    title: 'maxFontSizeMultiplier attribute',
+    name: 'maxFontSizeMultiplier',
+    render(): React.Node {
+      return (
+        <View testID={'max-font-size-multiplier'}>
+          <Text>
+            When allowFontScaling is enabled, you can use the
+            maxFontSizeMultiplier prop to set an upper limit on how much the
+            font size will be scaled.
+          </Text>
+          <ExampleTextInput
+            allowFontScaling={true}
+            maxFontSizeMultiplier={1}
+            placeholder="This text will not scale up (max 1x)"
+            style={{marginTop: 10}}
+            testID={'non-scalable-text-input'}
+          />
+          <ExampleTextInput
+            allowFontScaling={true}
+            maxFontSizeMultiplier={1.5}
+            placeholder="This text will scale up (max 1.5x)"
+            style={{marginTop: 10}}
+            testID={'scalable-text-input'}
+          />
+        </View>
+      );
+    },
+  },
  {
    title: 'Auto-expanding',
    render: function (): React.Node {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/tester",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "private": true,
  "description": "React Native tester app.",
  "license": "MIT",
@@ -27,8 +27,8 @@
    "e2e-test-ios": "./scripts/maestro-test-ios.sh"
  },
  "dependencies": {
-    "@react-native/oss-library-example": "0.77.0-main",
-    "@react-native/popup-menu-android": "0.77.0-main",
+    "@react-native/oss-library-example": "0.78.0-rc.3",
+    "@react-native/popup-menu-android": "0.78.0-rc.3",
    "flow-enums-runtime": "^0.0.6",
    "invariant": "^2.2.4",
    "nullthrows": "^1.1.1"
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/typescript-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Default TypeScript configuration for React Native apps",
  "license": "MIT",
  "repository": {
@@ -1,6 +1,6 @@
 {
  "name": "@react-native/virtualized-lists",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.3",
  "description": "Virtualized lists for React Native.",
  "license": "MIT",
  "repository": {
@@ -85,40 +85,66 @@ async function testRNTesterIOS(
    } version of RNTester iOS with the new Architecture enabled`,
  );

+  // if everything succeeded so far, we can launch Metro and the app
+  // start the Metro server in a separate window
+  launchPackagerInSeparateWindow(pwd().toString());
+
  // remember that for this to be successful
  // you should have run bundle install once
  // in your local setup
-  if (argv.hermes === true && ciArtifacts != null) {
-    const hermesURL = await ciArtifacts.artifactURLHermesDebug();
-    const hermesZipPath = path.join(ciArtifacts.baseTmpPath(), 'hermes.zip');
-    // download hermes source code from manifold
-    ciArtifacts.downloadArtifact(hermesURL, hermesZipPath);
-    // GHA zips by default the artifacts.
-    const outputFolder = path.join(ciArtifacts.baseTmpPath(), 'hermes');
-    exec(`rm -rf ${outputFolder}`);
-    exec(`unzip ${hermesZipPath} -d ${outputFolder}`);
-    const hermesPath = path.join(outputFolder, 'hermes-ios-Debug.tar.gz');
-
-    console.info(`Downloaded Hermes in ${hermesPath}`);
-    exec(
-      `HERMES_ENGINE_TARBALL_PATH=${hermesPath} RCT_NEW_ARCH_ENABLED=1 bundle exec pod install --ansi`,
+  if (ciArtifacts != null) {
+    const appOutputFolder = path.join(
+      ciArtifacts.baseTmpPath(),
+      'RNTester.app',
    );
+    exec(`rm -rf ${appOutputFolder}`);
+    if (argv.hermes === true) {
+      // download hermes App
+      const hermesAppUrl = await ciArtifacts.artifactURLForHermesRNTesterApp();
+      const hermesAppZipPath = path.join(
+        ciArtifacts.baseTmpPath(),
+        'RNTesterAppHermes.zip',
+      );
+      ciArtifacts.downloadArtifact(hermesAppUrl, hermesAppZipPath);
+      exec(`unzip ${hermesAppZipPath} -d ${appOutputFolder}`);
+    } else {
+      // download JSC app
+      const hermesAppUrl = await ciArtifacts.artifactURLForJSCRNTesterApp();
+      const hermesAppZipPath = path.join(
+        ciArtifacts.baseTmpPath(),
+        'RNTesterAppJSC.zip',
+      );
+      ciArtifacts.downloadArtifact(hermesAppUrl, hermesAppZipPath);
+      exec(`unzip ${hermesAppZipPath} -d ${appOutputFolder}`);
+    }
+
+    // boot device
+    const bootedDevice = String(
+      exec('xcrun simctl list | grep "iPhone 16 Pro" | grep Booted', {
+        silent: true,
+      }),
+    ).trim();
+    if (!bootedDevice || bootedDevice.length === 0) {
+      exec('xcrun simctl boot "iPhone 16 Pro"');
+    }
+
+    // install app on device
+    exec(`xcrun simctl install booted ${appOutputFolder}`);
+
+    // launch the app on iOS simulator
+    exec('xcrun simctl launch booted com.meta.RNTester.localDevelopment');
  } else {
    exec(
      `USE_HERMES=${
        argv.hermes === true ? 1 : 0
      } CI=${onReleaseBranch.toString()} RCT_NEW_ARCH_ENABLED=1 bundle exec pod install --ansi`,
    );
+
+    // launch the app on iOS simulator
+    exec(
+      'npx react-native run-ios --scheme RNTester --simulator "iPhone 15 Pro"',
+    );
  }
-
-  // if everything succeeded so far, we can launch Metro and the app
-  // start the Metro server in a separate window
-  launchPackagerInSeparateWindow(pwd().toString());
-
-  // launch the app on iOS simulator
-  exec(
-    'npx react-native run-ios --scheme RNTester --simulator "iPhone 15 Pro"',
-  );
 }

 /**
@@ -201,7 +227,7 @@ async function testRNTesterAndroid(
 * - @onReleaseBranch whether we are on a release branch or not
 */
 async function testRNTester(
-  circleCIArtifacts /*:Unwrap<ReturnType<typeof setupGHAArtifacts>> */,
+  ciArtifacts /*:Unwrap<ReturnType<typeof setupGHAArtifacts>> */,
  onReleaseBranch /*: boolean */,
 ) {
  // FIXME: make sure that the commands retains colors
@@ -210,9 +236,9 @@ async function testRNTester(
  pushd('packages/rn-tester');

  if (argv.platform === 'ios') {
-    await testRNTesterIOS(circleCIArtifacts, onReleaseBranch);
+    await testRNTesterIOS(ciArtifacts, onReleaseBranch);
  } else {
-    await testRNTesterAndroid(circleCIArtifacts);
+    await testRNTesterAndroid(ciArtifacts);
  }
  popd();
 }
@@ -214,6 +214,14 @@ async function artifactURLForHermesRNTesterAPK(
  return getArtifactURL('rntester-hermes-debug');
 }

+async function artifactURLForJSCRNTesterApp() /*: Promise<string> */ {
+  return getArtifactURL('RNTesterApp-NewArch-JSC-Debug');
+}
+
+async function artifactURLForHermesRNTesterApp() /*: Promise<string> */ {
+  return getArtifactURL('RNTesterApp-NewArch-Hermes-Debug');
+}
+
 async function artifactURLForMavenLocal() /*: Promise<string> */ {
  return getArtifactURL('maven-local');
 }
@@ -247,6 +255,8 @@ module.exports = {
  downloadArtifact,
  artifactURLForJSCRNTesterAPK,
  artifactURLForHermesRNTesterAPK,
+  artifactURLForJSCRNTesterApp,
+  artifactURLForHermesRNTesterApp,
  artifactURLForMavenLocal,
  artifactURLHermesDebug,
  artifactURLForReactNative,
Author	SHA1	Message	Date
React Native Bot	82b78f3fec	Release 0.78.0-rc.3 #publish-packages-to-npm&next	2025-02-03 17:46:38 +00:00
Riccardo Cipolleschi	5c55580a06	Add extra parameter to define whether codegen is invoked by lib or app (#48995 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48995 This change adds an extra parameter to the codegen script that allow our users to trigger codegen for Apps or for Libraries. When running codegen for Apps, we have to generate some extra files that are not needed by the Libraries. This is causing issues to our library maintainers and this change will provide more flexibility in the DevX of libraries. The default value is App, so if the new parameter is not passed, nothing will change in the current behavior. [iOS][Added] - Add the `source` parameter to generate-codegen-artifacts to avoid generating files not needed by libraries. Reviewed By: cortinico Differential Revision: D68765478 fbshipit-source-id: 8030b4472ad4f5058e58b1c91089de5122a4f60a	2025-02-03 15:29:11 +00:00
Rickard ZrinskiandRiccardo Cipolleschi	ea49d4d1b0	Fix `maxFontSizeMultiplier` prop on `Text` and `TextInput` components in new architecture (#47614 ) Summary: The `maxFontSizeMultiplier` prop for `Text` and `TextInput` was not handled in Fabric / New Architecture as documented in https://github.com/facebook/react-native/issues/47499. bypass-github-export-checks ## Changelog: [GENERAL] [FIXED] - Fix `maxFontSizeMultiplier` prop on `Text` and `TextInput` components in Fabric / New Architecture Pull Request resolved: https://github.com/facebook/react-native/pull/47614 Test Plan: I have not added any automated tests for this change but try to do so if requested. I have however added examples to RN Tester for both the Text and TextInput components, as well as compared the behaviour with Paper / Old Architecture. Both on version 0.76. Noticed now I didn't do exactly the same steps in both videos, oops! Be aware that reapplying changes made in the Settings are currently half-broken on the new architecture, thus I'm restarting the app on Android and iOS. But this issue is unrelated to my changes. I've tested on main branch and it has the same issue. Here are comparison videos between Paper and Fabric on iOS after I've made my fix. ### Text \| Paper \| Fabric \| \| ------------- \| ------------- \| \| <video src="https://github.com/user-attachments/assets/f4fd009f-aa6d-41ab-92fa-8dcf1e351ba1" /> \| <video src="https://github.com/user-attachments/assets/fda42cc6-34c2-42a7-a6e2-028e7c866075" /> \| ### TextInput \| Paper \| Fabric \| \| ------------- \| ------------- \| \| <video src="https://github.com/user-attachments/assets/59b59f7b-25d2-4b5b-a8e2-d2054cc6390b" /> \| <video src="https://github.com/user-attachments/assets/72068566-8f2a-4463-874c-45a6f5b63b0d" /> \| Reviewed By: Abbondanzo Differential Revision: D65953019 Pulled By: cipolleschi fbshipit-source-id: 90c3c7e236229e9ad9bd346941fafe4af8a9d9fc	2025-02-03 15:27:52 +00:00
Tommy NguyenandRiccardo Cipolleschi	cbf4f26dea	fix(dev-middleware): add missing `invariant` dependency (#49047 ) Summary: `dev-middleware` uses `invariant` but does not declare it as a dependency. Under certain hoisting scenarios, or when using pnpm, this will cause `dev-middleware` to fail while being loaded. ## Changelog: [GENERAL] [FIXED] - add missing `invariant` dependency Pull Request resolved: https://github.com/facebook/react-native/pull/49047 Test Plan: n/a Reviewed By: cortinico Differential Revision: D68835789 Pulled By: huntie fbshipit-source-id: 13718f4970ed55e6e062b7c2bd719be977abdd0c	2025-02-03 15:27:44 +00:00
Cedric van PuttenandRiccardo Cipolleschi	1bd9d36b70	fix(react-native): pass the protocol from bundle URL to HMR client on Android (#48998 ) Summary: This is another attempt at fixing the Android HMR client for HTTPS proxied Metro instances. The previous one unintentionally [caused the following error](https://github.com/facebook/react-native/pull/48970#issuecomment-2617047184): ``` java.lang.AssertionError: Method overloading is unsupported: com.facebook.react.devsupport.HMRClient#setup ``` This PR removes the overloading, and only adds the `scheme` property as a parameter to the existing `.setup` method. Aligning with the exact behavior we have on iOS. The alternative fix, which should NOT be backward breaking (if this is) - is to move this "infer the protocol from the bundle URL" to the JS side of the HMR client. Where we don't just always default to `http`, but instead default to `https IF port === 443, otherwise http`. It's a bit more hacky, but shouldn't cause any other issues. _Ideally_, we have the same working behavior on both Android and iOS without workarounds. <details><summary>Alternative workaround</summary> See [this change](https://github.com/facebook/react-native/compare/main...byCedric:react-native:patch-2). <img width="1179" alt="image" src="https://github.com/user-attachments/assets/47c365bc-6df8-43e6-ad7d-5a667e350cd4" /> </details> See full explanation on https://github.com/facebook/react-native/issues/48970 > We've noticed that the HMR on Android doesn't seem to be connecting when using a HTTPS-proxied Metro instance, where the proxy is hosted through Cloudflare. This is only an issue on Android - not iOS - and likely caused by the HMR Client not being set up properly on Android. > >- On Android, we run `.setup('android', <bundleEntryPath>, <proxiedMetroHost>, <proxiedMetroPort>, <hmrEnabled>)` in the [react/devsupport/DevSupportManagerBase.java](https://github.com/facebook/react-native/blob/53d94c3abe3fcd2168b512652bc0169956bffa39/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSupportManagerBase.java#L689-L691) file. >- On iOS, we run `[self.callableJSModules invokeModule:@"HMRClient" method:@"setup" withArgs:@[ RCTPlatformName, path, host, RCTNullIfNil(port), @(isHotLoadingEnabled), scheme ]];` in the [React/CoreModules /RCTDevSettings.mm](https://github.com/facebook/react-native/blob/53d94c3abe3fcd2168b512652bc0169956bffa39/packages/react-native/React/CoreModules/RCTDevSettings.mm#L488-L491) file. > >Notice how Android does not pass in the scheme/protocol of the bundle URL, while iOS actually does? Unfortunately, because the default protocol (`http`) mismatches on Android when using HTTPS proxies, we actually try to connect the HMR client over `http` instead of `https` - while still using port 443 - which is rejected by Cloudflare's infrastructure even before we can redirect or mitigate this issue. And the rejection is valid, as we basically try to connect on `http://<host>:443` (the source URL is `https`, so the port is infered as `443`). > >This change adds scheme propagation to Android, exactly like we do on iOS for the HMR Client. ## Changelog: [ANDROID] [FIXED] Pass the bundle URL protocol when setting up HMR client on Android <!-- Help reviewers and the release process by writing your own changelog entry. Pick one each for the category and type tags: [ANDROID\|GENERAL\|IOS\|INTERNAL] [BREAKING\|ADDED\|CHANGED\|DEPRECATED\|REMOVED\|FIXED\|SECURITY] - Message For more details, see: https://reactnative.dev/contributing/changelogs-in-pull-requests Pull Request resolved: https://github.com/facebook/react-native/pull/48998 Test Plan: See full explanation on https://github.com/facebook/react-native/issues/48970 > It's a little bit hard to test this out yourself, since you'd need a HTTPS-based proxy and reject HTTP connections for HTTPS/WSS Websocket requests. > >You can set this up through: >- `bun create expo@latest ./test-app` >- `cd ./test-app` >- `touch .env` >- Set `EXPO_PACKAGER_PROXY_URL=https://<proxied-metro-hostname>` in .env >- Set `REACT_NATIVE_PACKAGER_HOSTNAME=<proxied-metro-hostname>` in .env >- `bun run start` > >Setting both these envvars, the bundle URL in the manifest is set to `https://...` - which triggers this HMR issue on Android. You can validate the .env setup through: > >```bash >curl "http://localhost:8081" -H "expo-platform: android" \| jq .launchAsset.url >``` > >This should point the entry bundle URL towards the `EXPO_PACKAGER_PROXY_URL`. Reviewed By: cortinico Differential Revision: D68768351 Pulled By: javache fbshipit-source-id: 49bf1dc60f11b2af6e57177141270632d62ab564	2025-02-03 15:27:39 +00:00
Fabrizio Cucci	76da20aab4	Update Podfile.lock Changelog: [Internal]	2025-01-29 11:42:42 +00:00
React Native Bot	465f49ea2a	Release 0.78.0-rc.2 #publish-packages-to-npm&next	2025-01-28 13:44:52 +00:00
Riccardo CipolleschiandFabrizio Cucci	8207a09107	Fix images not displayed when extension is implicit (#48888 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48888 We have a report from OSS where Images are not displayed properly in case they are saved on disk with no extension. We previously had a fix attempt iwith [this pr](https://github.com/facebook/react-native/pull/46971), but this was breaking some internal apps. This second attempt should work for both cases. ## Changelog: [iOS][Fixed] - Load images even when the extension is implicit Reviewed By: cortinico Differential Revision: D68555813 fbshipit-source-id: bc25970aafe3e6e5284163b663d36e00b3df3d82	2025-01-27 14:59:35 +00:00
Fabrizio Cucci	7e883be800	Update Podfile.lock Changelog: [Internal]	2025-01-22 10:32:32 +00:00
React Native Bot	1f412d0826	Release 0.78.0-rc.1 #publish-packages-to-npm&next	2025-01-20 20:09:09 +00:00
Tim YungandFabrizio Cucci	3abb4cab7d	Animated: Defer `onAnimatedValueUpdate` on Attach + Native (#48715 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48715 {D68154908} fixed a problem with the `onAnimatedValueUpdate` listener not being correctly attached if `__attach` were called before `__makeNative` (which sets `__isNative` to true). We're potentially seeing production symptoms of stuttering interactions and user responsiveness, after queuing up many operations. Our hypothesis is that in scenarios where `ensureUpdateSubscriptionExists` is being called during `__makeNative` (instead of during `__attach`), a backup of operations occurs leading to these symptoms. This diff attempts to validate and mitigate this hypothesis by deferring `ensureUpdateSubscriptionExists` to when an `AnimatedValue` instance has had both `__attach` and `__makeNative` invoked. Changelog: [Internal] Differential Revision: D68236594 fbshipit-source-id: 2089100a773ebfc161fb5b567123eb58a893939f	2025-01-20 15:08:03 +00:00
Tim YungandFabrizio Cucci	bb5f971389	Animated: Fix `onUserDrivenAnimationEnded` w/ Insertion Effects (#48678 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48678 While diagnosing a recent issue in which `AnimatedValue` instances were not being correctly updated as expected, the insertion effects feature flag was identified as a root cause. Upon further investigation, it appears that this is because the `onUserDrivenAnimationEnded` listener was not implemented the same way in the two feature flag states: - When `useInsertionEffectsForAnimations` is disabled, `useAnimatedProps` listens to `onUserDrivenAnimationEnded` in a passive effect, after all nodes have been attached. - When `useInsertionEffectsForAnimations` is enabled, `useAnimatedProps` listens to `onUserDrivenAnimationEnded` in an insertion effect when attaching nodes. The bugs occurs because `useAnimatedProps` checks whether native driver is employed to decide whether to listen to `onUserDrivenAnimationEnded`. However, we do not know whether native driver will be employed during the insertion effect. (Actually, we do not necessarily know that in a passive effect, either... but that is a separate matter.) This fixes the bug when that occurs when `useInsertionEffectsForAnimations` is enabled, by moving the listening logic of `onUserDrivenAnimationEnded` into a passive effect. This is the same way that it is implemented when `useInsertionEffectsForAnimations` is disabled. Changelog: [Internal] Reviewed By: javache, sammy-SC Differential Revision: D68171721 fbshipit-source-id: 50b23348fd4641580581cacebc920959651f96a7	2025-01-20 15:07:52 +00:00
Samuel SuslaandFabrizio Cucci	36e2ae6a9c	fix Pressable when transform style is animated (#48672 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48672 ## Changelog: [General] [Fixed] - Buttons becoming unresponsive when transform is animated # The problem D67872307 changes when `ensureUpdateSubscriptionExists` is called to in `__attach`. This breaks the functionality because `__attach` is called before flag `__isNative` is set and subscriptions are never setup. # Fix The diff sets up subscriptions in `__makeNative` method. Reviewed By: yungsters Differential Revision: D68154908 fbshipit-source-id: e2ac108b064a66dda08902653d6bd20286f92458	2025-01-20 15:07:31 +00:00
Riccardo CipolleschiandFabrizio Cucci	5bff540ad3	Fix ruby (#48721 ) Summary: Following the suggestions [here](https://stackoverflow.com/questions/79360526/uninitialized-constant-activesupportloggerthreadsafelevellogger-nameerror), it seems that concurrent-ruby has been released tonight and it is bugged. Let's pin it to the right version. ## Changelog: [iOS][Changed] - Pin 'concurrent-ruby' to a working version Pull Request resolved: https://github.com/facebook/react-native/pull/48721 Test Plan: GHA Reviewed By: robhogan Differential Revision: D68262719 Pulled By: cipolleschi fbshipit-source-id: fc6410e28cc96f9d3769d3082a77cac0a3efe6db	2025-01-20 15:07:09 +00:00
Riccardo CipolleschiandFabrizio Cucci	ddfa8a780b	Use RNTester App downloaded from CI instead of building (#48637 ) Summary: This change improves the E2E testing by downloading the iOS RNTesterApp that is built in CI instead of building it locally. This should let us save 10 to 20 minutes when we test a new release. ## Changelog: [Internal] - Use the RNTester app built in CI for release testing on iOS Pull Request resolved: https://github.com/facebook/react-native/pull/48637 Test Plan: - build the app in ci - run `yarn test-e2e-local -c <my-token>` and `yarn test-e2e-local -h false -c <my-token>` and verify that the iOS app is not built, but run in the simulator Reviewed By: cortinico Differential Revision: D68161477 Pulled By: cipolleschi fbshipit-source-id: 577d110f9ff0197a2d3348a08a60e60a4d0a752b	2025-01-20 15:06:52 +00:00
Riccardo CipolleschiandFabrizio Cucci	5c7823f32c	Properly test JSC for template_app e2e tests (#48656 ) Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48656 While working on 0.78, I realize we were not testing the template app with JSC. This change should fix this. ## Changelog: [Internal] - Disable Hermes for the JSC E2E tests with Maestro Reviewed By: cortinico, fabriziocucci Differential Revision: D68147849 fbshipit-source-id: 4fbe005b5d04d6163a37041d1bd57fd48a9dfda8	2025-01-20 15:06:37 +00:00
React Native Bot	b713f273b6	Release 0.78.0-rc.0 #publish-packages-to-npm&next	2025-01-15 08:40:26 +00:00
Nicola Corti	94b7082a46	Revert "Do not reset rn-artifacts-version on release branch (#48572 )" This reverts commit `a28d3961bd`.	2025-01-13 19:19:03 +00:00
Riccardo Cipolleschi	0c8e15e8bb	[LOCAL] Bump Hermes	2025-01-13 15:57:54 +01:00
				`@@ -0,0 +1 @@`
				`hermes-2025-01-13-RNv0.78.0-a942ef374897d85da38e9c8904574f8376555388`