Revert "Use RN_SERIALIZABLE_STATE for conditional getDiffProps code (#51516)"

This reverts commit f900551216.

.editorconfig

@@ -9,3 +9,12 @@ end_of_line = lf
 insert_final_newline = true
 indent_style = space
 indent_size = 2
+
+[*.gradle]
+indent_size = 4
+
+[*.kts]
+indent_size = 4
+
+[BUCK]
+indent_size = 4

.eslintignore

@@ -13,6 +13,7 @@ packages/*/dist
 packages/*/types_generated
 packages/debugger-frontend/dist/**/*
 packages/react-native-codegen/lib
+tools/eslint/rules/sort-imports.js
 **/Pods/*
 **/*.macos.js
 **/*.windows.js

.eslintrc.js

@@ -4,18 +4,21 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
  * @format
  */
 
 'use strict';
 
+const path = require('node:path');
+
+require('eslint-plugin-lint').load(path.join(__dirname, 'tools/eslint/rules'));
+
 module.exports = {
   root: true,
 
   extends: ['@react-native'],
 
-  plugins: ['@react-native/monorepo', '@react-native/specs'],
+  plugins: ['@react-native/eslint-plugin-specs', 'lint'],
 
   overrides: [
     // overriding the JS config from @react-native/eslint-config to ensure
@@ -24,23 +27,19 @@ module.exports = {
       files: ['*.js', '*.js.flow', '*.jsx'],
       parser: 'hermes-eslint',
       rules: {
-        '@react-native/monorepo/sort-imports': 'warn',
-        'eslint-comments/no-unlimited-disable': 'off',
-        'ft-flow/require-valid-file-annotation': ['error', 'always'],
-        'no-extra-boolean-cast': 'off',
-        'no-void': 'off',
         // These rules are not required with hermes-eslint
-        'ft-flow/define-flow-type': 'off',
-        'ft-flow/use-flow-type': 'off',
+        'ft-flow/define-flow-type': 0,
+        'ft-flow/use-flow-type': 0,
+        'lint/sort-imports': 1,
         // Flow handles these checks for us, so they aren't required
-        'no-undef': 'off',
-        'no-unreachable': 'off',
+        'no-undef': 0,
+        'no-unreachable': 0,
       },
     },
     {
       files: ['*.js', '*.jsx', '*.ts', '*.tsx'],
       rules: {
-        '@react-native/no-deep-imports': 'off',
+        '@react-native/no-deep-imports': 0,
       },
     },
     {
@@ -51,7 +50,7 @@ module.exports = {
       ],
       parser: 'hermes-eslint',
       rules: {
-        '@react-native/monorepo/no-commonjs-exports': 'warn',
+        'lint/no-commonjs-exports': 1,
       },
     },
     {
@@ -61,17 +60,16 @@ module.exports = {
     {
       files: ['package.json'],
       rules: {
-        '@react-native/monorepo/react-native-manifest': 'error',
+        'lint/react-native-manifest': 2,
       },
     },
     {
       files: ['flow-typed/**/*.js', 'packages/react-native/flow/**/*'],
       rules: {
-        '@react-native/monorepo/valid-flow-typed-signature': 'error',
-        'ft-flow/require-valid-file-annotation': 'off',
-        'no-shadow': 'off',
-        'no-unused-vars': 'off',
-        quotes: 'off',
+        'lint/valid-flow-typed-signature': 2,
+        'no-shadow': 0,
+        'no-unused-vars': 0,
+        quotes: 0,
       },
     },
     {
@@ -80,14 +78,14 @@ module.exports = {
         'packages/react-native/src/**/*.js',
       ],
       rules: {
-        '@react-native/monorepo/no-haste-imports': 'error',
-        '@react-native/monorepo/no-react-default-imports': 'error',
-        '@react-native/monorepo/no-react-named-type-imports': 'error',
-        '@react-native/monorepo/no-react-native-imports': 'error',
-        '@react-native/monorepo/no-react-node-imports': 'error',
-        '@react-native/monorepo/require-extends-error': 'error',
-        '@react-native/platform-colors': 'error',
-        '@react-native/specs/react-native-modules': 'error',
+        '@react-native/platform-colors': 2,
+        '@react-native/specs/react-native-modules': 2,
+        'lint/no-haste-imports': 2,
+        'lint/no-react-native-imports': 2,
+        'lint/require-extends-error': 2,
+        'lint/no-react-node-imports': 2,
+        'lint/no-react-default-imports': 2,
+        'lint/no-react-named-type-imports': 2,
       },
     },
     {
@@ -141,7 +139,7 @@ module.exports = {
     {
       files: ['**/__tests__/**'],
       rules: {
-        '@react-native/monorepo/no-react-native-imports': 'off',
+        'lint/no-react-native-imports': 'off',
       },
     },
   ],

.flowconfig

@@ -9,7 +9,7 @@
 <PROJECT_ROOT>/packages/react-native-codegen/e2e/__test_fixtures__/modules/NativeEnumTurboModule.js
 
 ; Ignore the Dangerfile
-<PROJECT_ROOT>/private/react-native-bots/dangerfile.js
+<PROJECT_ROOT>/packages/react-native-bots/dangerfile.js
 
 ; Ignore "BUCK" generated dirs
 <PROJECT_ROOT>/\.buckd/
@@ -27,7 +27,7 @@
 <PROJECT_ROOT>/packages/.*/dist
 
 ; helloworld
-<PROJECT_ROOT>/private/helloworld/ios/Pods/
+<PROJECT_ROOT>/packages/helloworld/ios/Pods/
 
 ; Ignore rn-tester Pods
 <PROJECT_ROOT>/packages/rn-tester/Pods/
@@ -47,9 +47,7 @@ packages/react-native/flow/
 
 [options]
 enums=true
-experimental.pattern_matching=true
 casting_syntax=both
-component_syntax=true
 
 emoji=true
 
@@ -71,13 +69,13 @@ module.name_mapper='^react-native/\(.*\)$' -> '<PROJECT_ROOT>/packages/react-nat
 module.name_mapper='^@react-native/dev-middleware$' -> '<PROJECT_ROOT>/packages/dev-middleware'
 module.name_mapper='^@?[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\|xml\)$' -> '<PROJECT_ROOT>/packages/react-native/Libraries/Image/RelativeImageStub'
 
-module.system.haste.module_ref_prefix=m#
-
 react.runtime=automatic
 
-experimental.only_support_flow_fixme_and_expected_error=true
-experimental.require_suppression_with_error_code=true
-experimental.invariant_subtyping_error_message_improvement=true
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FlowFixMeProps
+suppress_type=$FlowFixMeState
+suppress_type=$FlowFixMeEmpty
 
 ban_spread_key_props=true
 
@@ -102,4 +100,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.280.0
+^0.272.1

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -83,7 +83,7 @@ body:
             path: /bin/zsh
         Binaries:
           Node: ...
-            version: 22.14.0
+            version: 18.14.0
         ...
       render: text
     validations:

.github/ISSUE_TEMPLATE/debugger_bug_report.yml

@@ -1,6 +1,6 @@
 name: 🔍 Debugger - Bug Report
 description: Report a bug with React Native DevTools and the New Debugger
-labels: ["Needs: Triage :mag:", "Debugging"]
+labels: ["Needs: Triage :mag:", "Debugger"]
 
 body:
   - type: markdown
@@ -62,7 +62,7 @@ body:
             path: /bin/zsh
         Binaries:
           Node: ...
-            version: 22.14.0
+            version: 18.14.0
         ...
       render: text
     validations:

.github/ISSUE_TEMPLATE/new_architecture_bug_report.yml

@@ -95,7 +95,7 @@ body:
             path: /bin/zsh
         Binaries:
           Node: ...
-            version: 22.14.0
+            version: 18.14.0
         ...
       render: text
     validations:

.github/actions/build-android/action.yml

@@ -4,6 +4,9 @@ inputs:
   release-type:
     required: true
     description: The type of release we are building. It could be nightly, release or dry-run
+  run-e2e-tests:
+    default: 'false'
+    description: If we need to build to run E2E tests. If yes, we need to build also x86.
   gradle-cache-encryption-key:
     description: "The encryption key needed to store the Gradle Configuration cache"
 runs:
@@ -28,11 +31,10 @@ runs:
       uses: actions/cache/restore@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ github.job }}-${{ github.ref }}-${{ hashFiles('packages/react-native/ReactAndroid/**/*.cpp', 'packages/react-native/ReactAndroid/**/*.h', 'packages/react-native/ReactCommon/**/*.cpp', 'packages/react-native/ReactAndroid/**/CMakeLists.txt', 'packages/react-native/ReactCommon/**/CMakeLists.txt') }}
+        key: v1-ccache-android-${{ github.job }}-${{ github.ref }}
         restore-keys: |
-          v2-ccache-android-${{ github.job }}-${{ github.ref }}-
-          v2-ccache-android-${{ github.job }}-
-          v2-ccache-android-
+          v1-ccache-android-${{ github.job }}-
+          v1-ccache-android-
     - name: Show ccache stats
       shell: bash
       run: ccache -s -v
@@ -41,7 +43,11 @@ runs:
       run: |
         if [[ "${{ inputs.release-type }}" == "dry-run" ]]; then
           # dry-run: we only build ARM64 to save time/resources. For release/nightlies the default is to build all archs.
-          export ORG_GRADLE_PROJECT_reactNativeArchitectures="arm64-v8a,x86" # x86 is required for E2E testing
+          if [[ "${{ inputs.run-e2e-tests }}" == 'true' ]]; then
+            export ORG_GRADLE_PROJECT_reactNativeArchitectures="arm64-v8a,x86" # x86 is required for E2E testing
+          else
+            export ORG_GRADLE_PROJECT_reactNativeArchitectures="arm64-v8a"
+          fi
           TASKS="publishAllToMavenTempLocal build"
         elif [[ "${{ inputs.release-type }}" == "nightly" ]]; then
           # nightly: we set isSnapshot to true so artifacts are sent to the right repository on Maven Central.
@@ -57,7 +63,7 @@ runs:
       uses: actions/cache/save@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ github.job }}-${{ github.ref }}-${{ hashFiles('packages/react-native/ReactAndroid/**/*.cpp', 'packages/react-native/ReactAndroid/**/*.h', 'packages/react-native/ReactCommon/**/*.cpp', 'packages/react-native/ReactAndroid/**/CMakeLists.txt', 'packages/react-native/ReactCommon/**/CMakeLists.txt') }}
+        key: v1-ccache-android-${{ github.job }}-${{ github.ref }}
     - name: Show ccache stats
       shell: bash
       run: ccache -s -v
@@ -81,12 +87,12 @@ runs:
       uses: actions/upload-artifact@v4.3.4
       with:
         name: rntester-debug
-        path: packages/rn-tester/android/app/build/outputs/apk/debug/
+        path: packages/rn-tester/android/app/build/outputs/apk/hermes/debug/
         compression-level: 0
     - name: Upload RNTester APK - hermes-release
       if: ${{ always() }}
       uses: actions/upload-artifact@v4.3.4
       with:
         name: rntester-release
-        path: packages/rn-tester/android/app/build/outputs/apk/release/
+        path: packages/rn-tester/android/app/build/outputs/apk/hermes/release/
         compression-level: 0

.github/actions/build-apple-slices-hermes/action.yml

@@ -71,17 +71,17 @@ runs:
         mv build_"$SLICE" "$FINAL_PATH"
 
         # check whether everything is there
-        if [[ -d "$FINAL_PATH/lib/hermesvm.framework" ]]; then
-          echo "Successfully built hermesvm.framework for $SLICE in $FLAVOR"
+        if [[ -d "$FINAL_PATH/API/hermes/hermes.framework" ]]; then
+          echo "Successfully built hermes.framework for $SLICE in $FLAVOR"
         else
-          echo "Failed to built hermesvm.framework for $SLICE in $FLAVOR"
+          echo "Failed to built hermes.framework for $SLICE in $FLAVOR"
           exit 1
         fi
 
-        if [[ -d "$FINAL_PATH/lib/hermesvm.framework.dSYM" ]]; then
-          echo "Successfully built hermesvm.framework.dSYM for $SLICE in $FLAVOR"
+        if [[ -d "$FINAL_PATH/API/hermes/hermes.framework.dSYM" ]]; then
+          echo "Successfully built hermes.framework.dSYM for $SLICE in $FLAVOR"
         else
-          echo "Failed to built hermesvm.framework.dSYM for $SLICE in $FLAVOR"
+          echo "Failed to built hermes.framework.dSYM for $SLICE in $FLAVOR"
           echo "Please try again"
           exit 1
         fi

.github/actions/build-hermes-macos/action.yml

@@ -15,6 +15,8 @@ runs:
   steps:
     - name: Setup xcode
       uses: ./.github/actions/setup-xcode
+    - name: Setup node.js
+      uses: ./.github/actions/setup-node
     - name: Restore Hermes workspace
       uses: ./.github/actions/restore-hermes-workspace
     - name: Restore Cached Artifacts
@@ -43,8 +45,6 @@ runs:
           echo "ARTIFACTS_EXIST=true" >> $GITHUB_ENV
           echo "ARTIFACTS_EXIST=true" >> $GITHUB_OUTPUT
         fi
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Yarn- Install Dependencies
       if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
       uses: ./.github/actions/yarn-install
@@ -186,7 +186,7 @@ runs:
 
         cd ./packages/react-native/sdks/hermes || exit 1
 
-        DSYM_FILE_PATH=lib/hermesvm.framework.dSYM
+        DSYM_FILE_PATH=API/hermes/hermes.framework.dSYM
         cp -r build_macosx/$DSYM_FILE_PATH "$WORKING_DIR/macosx/"
         cp -r build_catalyst/$DSYM_FILE_PATH "$WORKING_DIR/catalyst/"
         cp -r build_iphoneos/$DSYM_FILE_PATH "$WORKING_DIR/iphoneos/"
@@ -197,10 +197,10 @@ runs:
         cp -r build_xrsimulator/$DSYM_FILE_PATH "$WORKING_DIR/xrsimulator/"
 
         DEST_DIR="/tmp/hermes/dSYM/$FLAVOR"
-        tar -C "$WORKING_DIR" -czvf "hermesvm.framework.dSYM" .
+        tar -C "$WORKING_DIR" -czvf "hermes.framework.dSYM" .
 
         mkdir -p "$DEST_DIR"
-        mv "hermesvm.framework.dSYM" "$DEST_DIR"
+        mv "hermes.framework.dSYM" "$DEST_DIR"
     - name: Upload hermes dSYM artifacts
       uses: actions/upload-artifact@v4.3.4
       with:

.github/actions/build-hermesc-windows/action.yml

@@ -14,23 +14,23 @@ runs:
       uses: actions/download-artifact@v4
       with:
         name: hermes-workspace
-        path: 'C:\tmp\hermes'
+        path: 'D:\tmp\hermes'
     - name: Set up workspace
       shell: powershell
       run: |
-        mkdir -p C:\tmp\hermes\osx-bin
+        mkdir -p D:\tmp\hermes\osx-bin
         mkdir -p .\packages\react-native\sdks\hermes
-        cp -r -Force C:\tmp\hermes\hermes\* .\packages\react-native\sdks\hermes\.
+        cp -r -Force D:\tmp\hermes\hermes\* .\packages\react-native\sdks\hermes\.
         cp -r -Force .\packages\react-native\sdks\hermes-engine\utils\* .\packages\react-native\sdks\hermes\.
     - name: Windows cache
       uses: actions/cache@v4
       with:
-        key: v3-hermes-${{ github.job }}-windows-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
+        key: v2-hermes-${{ github.job }}-windows-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
         path: |
-          C:\tmp\hermes\win64-bin\
-          C:\tmp\hermes\hermes\icu\
-          C:\tmp\hermes\hermes\deps\
-          C:\tmp\hermes\hermes\build_release\
+          D:\tmp\hermes\win64-bin\
+          D:\tmp\hermes\hermes\icu\
+          D:\tmp\hermes\hermes\deps\
+          D:\tmp\hermes\hermes\build_release\
     - name: setup-msbuild
       uses: microsoft/setup-msbuild@v1.3.2
     - name: Set up workspace
@@ -63,7 +63,7 @@ runs:
           $Env:PATH += ";$Env:CMAKE_DIR;$Env:MSBUILD_DIR"
           $Env:ICU_ROOT = "$Env:HERMES_WS_DIR\icu"
 
-          cmake -S hermes -B build_release -G 'Visual Studio 17 2022' -Ax64 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=True -DHERMES_ENABLE_WIN10_ICU_FALLBACK=OFF
+          cmake -S hermes -B build_release -G 'Visual Studio 16 2019' -Ax64 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=True -DHERMES_ENABLE_WIN10_ICU_FALLBACK=OFF
           if (-not $?) { throw "Failed to configure Hermes" }
           echo "Running windows build..."
           cd build_release
@@ -83,4 +83,4 @@ runs:
       uses: actions/upload-artifact@v4.3.4
       with:
         name: hermes-win64-bin
-        path: C:\tmp\hermes\win64-bin\
+        path: D:\tmp\hermes\win64-bin\

.github/actions/build-npm-package/action.yml

@@ -99,29 +99,23 @@ runs:
         mkdir -p ./packages/react-native/ReactAndroid/external-artifacts/artifacts/
         cp ${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-Debug.tar.gz ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-ios-debug.tar.gz
         cp ${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-Release.tar.gz ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-ios-release.tar.gz
-        cp ${{ inputs.hermes-ws-dir }}/dSYM/Debug/hermesvm.framework.dSYM  ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-framework-dSYM-debug.tar.gz
-        cp ${{ inputs.hermes-ws-dir }}/dSYM/Release/hermesvm.framework.dSYM  ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-framework-dSYM-release.tar.gz
+        cp ${{ inputs.hermes-ws-dir }}/dSYM/Debug/hermes.framework.dSYM  ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-framework-dSYM-debug.tar.gz
+        cp ${{ inputs.hermes-ws-dir }}/dSYM/Release/hermes.framework.dSYM  ./packages/react-native/ReactAndroid/external-artifacts/artifacts/hermes-framework-dSYM-release.tar.gz
     - name: Download ReactNativeDependencies
       uses: actions/download-artifact@v4
       with:
         pattern: ReactNativeDependencies*
         path: ./packages/react-native/ReactAndroid/external-artifacts/artifacts
         merge-multiple: true
-    - name: Download ReactCore artifacts
-      uses: actions/download-artifact@v4
-      with:
-        pattern: ReactCore*
-        path: ./packages/react-native/ReactAndroid/external-artifacts/artifacts
-        merge-multiple: true
     - name: Print Artifacts Directory
       shell: bash
       run: ls -lR ./packages/react-native/ReactAndroid/external-artifacts/artifacts/
+    - name: Setup node.js
+      uses: ./.github/actions/setup-node
     - name: Setup gradle
       uses: ./.github/actions/setup-gradle
       with:
         cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Install dependencies
       uses: ./.github/actions/yarn-install
     - name: Build packages
@@ -129,7 +123,7 @@ runs:
       run: yarn build
     - name: Build types
       shell: bash
-      run: yarn build-types --skip-snapshot
+      run: yarn build-types
     # Continue with publish steps
     - name: Set npm credentials
       if: ${{ inputs.release-type == 'release' ||

.github/actions/create-release/action.yml

@@ -14,8 +14,6 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Yarn install
       uses: ./.github/actions/yarn-install
     - name: Configure Git

.github/actions/diff-js-api-breaking-changes/action.yml

@@ -1,23 +0,0 @@
-name: diff-js-api-breaking-changes
-description: Check for breaking changes in the public React Native JS API
-runs:
-  using: composite
-  steps:
-    - name: Fetch snapshot from PR head
-      shell: bash
-      env:
-        SCRATCH_DIR: ${{ runner.temp }}/diff-js-api-breaking-changes
-      run: |
-        mkdir $SCRATCH_DIR
-        git fetch --depth=1 origin ${{ github.event.pull_request.head.sha }}
-        git show ${{ github.event.pull_request.head.sha }}:packages/react-native/ReactNativeApi.d.ts > $SCRATCH_DIR/ReactNativeApi-after.d.ts \
-          || echo "" > $SCRATCH_DIR/ReactNativeApi.d.ts
-    - name: Run breaking change detection
-      shell: bash
-      env:
-        SCRATCH_DIR: ${{ runner.temp }}/diff-js-api-breaking-changes
-      run: |
-        node ./scripts/js-api/diff-api-snapshot \
-        ${{ github.workspace }}/packages/react-native/ReactNativeApi.d.ts  \
-        $SCRATCH_DIR/ReactNativeApi-after.d.ts \
-        > $SCRATCH_DIR/output.json

.github/actions/lint/action.yml

@@ -4,7 +4,7 @@ inputs:
   node-version:
     description: "The node.js version to use"
     required: false
-    default: "22"
+    default: "20"
   github-token:
     description: "The GitHub token used by pull-bot"
     required: true
@@ -26,12 +26,15 @@ runs:
     - name: Lint code
       shell: bash
       run: ./.github/workflow-scripts/exec_swallow_error.sh yarn lint --format junit -o ./reports/junit/eslint/results.xml
+    - name: Lint java
+      shell: bash
+      run: ./.github/workflow-scripts/exec_swallow_error.sh yarn lint-java --check
     - name: Lint file structure
       shell: bash
       run: ./.github/workflow-scripts/lint_files.sh
     - name: Verify not committing repo after running build
       shell: bash
-      run: yarn run build --validate
+      run: yarn run build --check
     - name: Run flowcheck
       shell: bash
       run: yarn flow-check
@@ -47,9 +50,6 @@ runs:
     - name: Lint markdown
       shell: bash
       run: yarn run lint-markdown
-    - name: Build types
+    - name: Validate typegen
       shell: bash
-      run: yarn build-types --skip-snapshot
-    - name: Run typescript check of generated types
-      shell: bash
-      run: yarn test-generated-typescript
+      run: yarn build-types

.github/actions/maestro-android/action.yml

@@ -1,5 +1,5 @@
 name: Maestro E2E Android
-description: Runs E2E Tests on Android using Maestro
+description: Runs E2E Tests on iOS using Maestro
 inputs:
   app-path:
     required: true
@@ -22,6 +22,10 @@ inputs:
     required: false
     default: "."
     description: The directory from which metro should be started
+  architecture:
+    required: false
+    default: "NewArch"
+    description: The react native architecture to test
 
 runs:
   using: composite
@@ -72,7 +76,7 @@ runs:
       uses: actions/upload-artifact@v4.3.4
       if: always()
       with:
-        name: e2e_android_${{ steps.normalize-app-id.outputs.app-id }}_report_${{ inputs.flavor }}_NewArch
+        name: e2e_android_${{ steps.normalize-app-id.outputs.app-id }}_report_${{ inputs.flavor }}_${{ inputs.architecture }}
         path: |
           report.xml
           screen.mp4
@@ -80,5 +84,5 @@ runs:
       if: steps.run-tests.outcome == 'failure'
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: maestro-logs-android-${{ steps.normalize-app-id.outputs.app-id }}-${{ inputs.flavor }}-NewArch
+        name: maestro-logs-android-${{ steps.normalize-app-id.outputs.app-id }}-${{ inputs.flavor }}-${{ inputs.architecture }}
         path: /tmp/MaestroLogs

.github/actions/maestro-ios/action.yml

@@ -18,6 +18,10 @@ inputs:
     required: false
     default: "."
     description: The directory from which metro should be started
+  architecture:
+    required: false
+    default: "NewArch"
+    description: The react native architecture to test
 
 runs:
   using: composite
@@ -35,8 +39,6 @@ runs:
       with:
         java-version: '17'
         distribution: 'zulu'
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Run yarn install
       uses: ./.github/actions/yarn-install
     - name: Start Metro in Debug
@@ -68,7 +70,7 @@ runs:
       if: always()
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: e2e_ios_${{ inputs.app-id }}_report_${{ inputs.flavor }}_NewArch
+        name: e2e_ios_${{ inputs.app-id }}_report_${{ inputs.flavor }}_${{ inputs.architecture }}
         path: |
           video_record_1.mov
           video_record_2.mov
@@ -80,5 +82,5 @@ runs:
       if: failure() && steps.run-tests.outcome == 'failure'
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.flavor }}-NewArch
+        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.flavor }}-${{ inputs.architecture }}
         path: /tmp/MaestroLogs

.github/actions/prepare-hermes-workspace/action.yml

@@ -17,6 +17,9 @@ outputs:
 runs:
   using: composite
   steps:
+    - name: Setup node.js
+      uses: ./.github/actions/setup-node
+
     - name: Setup hermes version
       shell: bash
       id: hermes-version
@@ -64,8 +67,6 @@ runs:
           echo "HERMES_CACHED=true" >> "$GITHUB_OUTPUT"
         fi
 
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Yarn- Install Dependencies
       if: ${{ steps.meaningful-cache.outputs.HERMES_CACHED != 'true' }}
       uses: ./.github/actions/yarn-install

.github/actions/run-fantom-tests/action.yml

@@ -1,83 +0,0 @@
-name: Run Fantom Tests
-inputs:
-  release-type:
-    required: true
-    description: The type of release we are building. It could be nightly, release or dry-run
-  gradle-cache-encryption-key:
-    description: "The encryption key needed to store the Gradle Configuration cache"
-
-runs:
-  using: composite
-  steps:
-    - name: Install dependencies
-      shell: bash
-      run: |
-        sudo apt update
-        sudo apt install -y git cmake openssl libssl-dev clang
-    - name: Setup git safe folders
-      shell: bash
-      run: git config --global --add safe.directory '*'
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
-    - name: Install node dependencies
-      uses: ./.github/actions/yarn-install
-    - name: Setup gradle
-      uses: ./.github/actions/setup-gradle
-      with:
-        cache-read-only: "false"
-        cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
-    - name: Restore Fantom ccache
-      uses: actions/cache/restore@v4
-      with:
-        path: /github/home/.cache/ccache
-        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
-            'packages/react-native/ReactAndroid/**/*.cpp',
-            'packages/react-native/ReactAndroid/**/*.h',
-            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
-            'packages/react-native/ReactCommon/**/*.cpp',
-            'packages/react-native/ReactCommon/**/*.h',
-            'packages/react-native/ReactCommon/**/CMakeLists.txt',
-            'private/react-native-fantom/tester/**/*.cpp',
-            'private/react-native-fantom/tester/**/*.h',
-            'private/react-native-fantom/tester/**/CMakeLists.txt'
-          ) }}
-        restore-keys: |
-          v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-
-          v2-ccache-fantom-${{ github.job }}-
-          v2-ccache-fantom-
-    - name: Show ccache stats
-      shell: bash
-      run: ccache -s -v
-    - name: Run Fantom Tests
-      shell: bash
-      run: yarn fantom
-      env:
-        CC: clang
-        CXX: clang++
-    - name: Save Fantom ccache
-      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }}
-      uses: actions/cache/save@v4
-      with:
-        path: /github/home/.cache/ccache
-        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
-            'packages/react-native/ReactAndroid/**/*.cpp',
-            'packages/react-native/ReactAndroid/**/*.h',
-            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
-            'packages/react-native/ReactCommon/**/*.cpp',
-            'packages/react-native/ReactCommon/**/*.h',
-            'packages/react-native/ReactCommon/**/CMakeLists.txt',
-            'private/react-native-fantom/tester/**/*.cpp',
-            'private/react-native-fantom/tester/**/*.h',
-            'private/react-native-fantom/tester/**/CMakeLists.txt'
-          ) }}
-    - name: Show ccache stats
-      shell: bash
-      run: ccache -s -v
-    - name: Upload test results
-      if: ${{ always() }}
-      uses: actions/upload-artifact@v4.3.4
-      with:
-        name: run-fantom-tests-results
-        compression-level: 1
-        path: |
-          private/react-native-fantom/build/reports

.github/actions/setup-node/action.yml

@@ -4,7 +4,7 @@ inputs:
   node-version:
     description: 'The node.js version to use'
     required: false
-    default: '22.14.0'
+    default: '20'
 runs:
   using: "composite"
   steps:

.github/actions/setup-xcode-build-cache/action.yml

@@ -0,0 +1,35 @@
+name: setup-xcode-build-cache
+description: Add caching to iOS jobs to speed up builds
+inputs:
+  hermes-version:
+    description: The version of hermes
+    required: true
+  flavor:
+    description: The flavor that is going to be built
+    default: Debug
+  architecture:
+    description: The architecture that is going to be built
+    default: NewArch
+  use-frameworks:
+    description: Whether we are bulding with DynamicFrameworks or StaticLibraries
+    default: StaticLibraries
+  ruby-version:
+    description: The ruby version we are going to use
+    default: 2.6.10
+
+runs:
+  using: composite
+  steps:
+    - name: See commands.yml with_xcodebuild_cache
+      shell: bash
+      run: echo "See commands.yml with_xcodebuild_cache"
+    - name: Cache podfile lock
+      uses: actions/cache@v4
+      with:
+        path: packages/rn-tester/Podfile.lock
+        key: v13-podfilelock-${{ github.job }}-${{ inputs.architecture }}-${{ inputs.flavor }}-${{ inputs.use-frameworks }}-${{ inputs.ruby-version }}-${{ hashfiles('packages/rn-tester/Podfile') }}-${{ inputs.hermes-version }}
+    - name: Cache cocoapods
+      uses: actions/cache@v4
+      with:
+        path: packages/rn-tester/Pods
+        key: v15-cocoapods-${{ github.job }}-${{ inputs.architecture }}-${{ inputs.flavor }}-${{ inputs.use-frameworks }}-${{ inputs.ruby-version }}-${{ hashfiles('packages/rn-tester/Podfile.lock') }}-${{ hashfiles('packages/rn-tester/Podfile') }}-${{ inputs.hermes-version}}

.github/actions/test-ios-helloworld/action.yml

@@ -4,6 +4,9 @@ inputs:
   use-frameworks:
     description: The dependency building and linking strategy to use. Must be one of "StaticLibraries", "DynamicFrameworks"
     default: StaticLibraries
+  architecture:
+    description: The React Native architecture to Test. RNTester has always Fabric enabled, but we want to run integration test with the old arch setup. Must be one of "OldArch" or "NewArch"
+    default: OldArch
   ruby-version:
     description: The version of ruby that must be used
     default: 2.6.10
@@ -23,8 +26,6 @@ runs:
       uses: ./.github/actions/setup-xcode
     - name: Setup node.js
       uses: ./.github/actions/setup-node
-    - name: Run yarn install
-      uses: ./.github/actions/yarn-install
     - name: Create Hermes folder
       shell: bash
       run: mkdir -p "$HERMES_WS_DIR"
@@ -36,6 +37,8 @@ runs:
     - name: Print Downloaded hermes
       shell: bash
       run: ls -lR "$HERMES_WS_DIR"
+    - name: Run yarn
+      uses: ./.github/actions/yarn-install
     - name: Setup ruby
       uses: ruby/setup-ruby@v1
       with:
@@ -48,20 +51,16 @@ runs:
     - name: Print third-party folder
       shell: bash
       run: ls -lR /tmp/third-party
-    - name: Download React Native Prebuilds
-      uses: actions/download-artifact@v4
-      with:
-        name: ReactCore${{ inputs.flavor }}.xcframework.tar.gz
-        path: /tmp/ReactCore
-    - name: Print ReactCore folder
-      shell: bash
-      run: ls -lR /tmp/ReactCore
-    - name: Install iOS dependencies - Configuration ${{ inputs.flavor }};
+    - name: Install iOS dependencies - Configuration ${{ inputs.flavor }}; New Architecture ${{ inputs.architecture }}
       shell: bash
       run: |
-        cd private/helloworld
+        cd packages/helloworld
         args=()
 
+        if [[ ${{ inputs.architecture }} == "OldArch" ]]; then
+          args+=(--arch old)
+        fi
+
         if [[ ${{ inputs.use-frameworks }} == "DynamicFrameworks" ]]; then
           args+=(--frameworks dynamic)
         fi
@@ -78,23 +77,22 @@ runs:
         fi
 
         BUILD_TYPE="${{ inputs.flavor }}"
-        TARBALL_FILENAME=$(node ../../packages/react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")
+        TARBALL_FILENAME=$(node ../react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")
         export HERMES_ENGINE_TARBALL_PATH="$HERMES_WS_DIR/hermes-runtime-darwin/$TARBALL_FILENAME"
         export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
-        export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
 
         yarn bootstrap ios "${args[@]}" | cat
 
     - name: Run Helloworld tests
       shell: bash
       run: |
-        cd private/helloworld
+        cd packages/helloworld
         yarn test
 
     - name: Build HelloWorld project
       shell: bash
       run: |
-        cd private/helloworld
+        cd packages/helloworld
 
         args=()
         if [[ ${{ inputs.flavor }} == "Release" ]]; then

.github/actions/test-ios-rntester/action.yml

@@ -4,6 +4,9 @@ inputs:
   use-frameworks:
     description: The dependency building and linking strategy to use. Must be one of "StaticLibraries", "DynamicFrameworks"
     default: StaticLibraries
+  architecture:
+    description: The React Native architecture to Test. RNTester has always Fabric enabled, but we want to run integration test with the old arch setup
+    default: NewArch
   ruby-version:
     description: The version of ruby that must be used
     default: 2.6.10
@@ -94,25 +97,28 @@ runs:
     - name: Print third-party folder
       shell: bash
       run: ls -lR /tmp/third-party
-    - name: Download React Native Prebuilds
-      uses: actions/download-artifact@v4
+    - name: Setup xcode build cache
+      uses: ./.github/actions/setup-xcode-build-cache
       with:
-        name: ReactCore${{ inputs.flavor }}.xcframework.tar.gz
-        path: /tmp/ReactCore
-    - name: Print ReactCore folder
-      shell: bash
-      run: ls -lR /tmp/ReactCore
+        hermes-version: ${{ inputs.hermes-version }}
+        architecture: ${{ inputs.architecture }}
+        use-frameworks: ${{ inputs.use-frameworks }}
+        flavor: ${{ inputs.flavor }}
+        ruby-version: ${{ inputs.ruby-version }}
     - name: Install CocoaPods dependencies
       shell: bash
       run: |
         export HERMES_ENGINE_TARBALL_PATH=$HERMES_ENGINE_TARBALL_PATH
-        export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
-        export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
 
         if [[ ${{ inputs.use-frameworks }} == "DynamicFrameworks" ]]; then
           export USE_FRAMEWORKS=dynamic
         fi
 
+        if [[ ${{ inputs.architecture }} == "OldArch" ]]; then
+          export RCT_NEW_ARCH_ENABLED=0
+        fi
+
+        export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
         cd packages/rn-tester
 
         bundle install
@@ -156,7 +162,7 @@ runs:
       if: ${{ inputs.use-frameworks == 'StaticLibraries' && inputs.ruby-version == '2.6.10' }} # This is needed to avoid conflicts with the artifacts
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: RNTesterApp-NewArch-${{ inputs.flavor }}
+        name: RNTesterApp-${{ inputs.architecture }}-${{ inputs.flavor }}
         path: ${{ env.app-path }}
     - name: Store test results
       if: ${{ inputs.run-unit-tests == 'true' }}

.github/actions/test-js/action.yml

@@ -4,7 +4,7 @@ inputs:
   node-version:
     description: "The node.js version to use"
     required: false
-    default: "22"
+    default: "20"
 runs:
   using: composite
   steps:

.github/actions/test-library-on-nightly/action.yml

@@ -0,0 +1,52 @@
+name: test-library-on-nightly
+description: Tests a library on a nightly
+inputs:
+  library-npm-package:
+    description: The library npm package to add
+    required: true
+  platform:
+    description: whether we want to build for iOS or Android
+    required: true
+runs:
+  using: composite
+  steps:
+    - name: Create new app
+      shell: bash
+      run: |
+        cd /tmp
+        npx @react-native-community/cli init RNApp --skip-install --version nightly
+    - name: Add library
+      shell: bash
+      run: |
+        cd /tmp/RNApp
+        yarn add ${{ inputs.library-npm-package }}
+
+    # iOS
+    - name: Setup xcode
+      if: ${{ inputs.platform == 'ios' }}
+      uses: ./.github/actions/setup-xcode
+    - name: Build iOS
+      shell: bash
+      if: ${{ inputs.platform == 'ios' }}
+      run: |
+        cd /tmp/RNApp/ios
+        bundle install
+        bundle exec pod install
+        xcodebuild build \
+          -workspace RNApp.xcworkspace \
+          -scheme RNApp \
+          -sdk iphonesimulator
+
+    # Android
+    - name: Setup Java for Android
+      if: ${{ inputs.platform == 'android' }}
+      uses: actions/setup-java@v2
+      with:
+        java-version: '17'
+        distribution: 'zulu'
+    - name: Build Android
+      shell: bash
+      if: ${{ inputs.platform == 'android' }}
+      run: |
+        cd /tmp/RNApp/android
+        ./gradlew assembleDebug

.github/workflow-scripts/__tests__/notifyDiscord-test.js

@@ -0,0 +1,189 @@
+/**
+ * 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.
+ *
+ * @format
+ */
+
+'use strict';
+
+const {
+  prepareFailurePayload,
+  sendMessageToDiscord,
+} = require('../notifyDiscord');
+
+describe('prepareFailurePayload', () => {
+  it('should handle undefined failures', () => {
+    const message = prepareFailurePayload(undefined);
+    expect(message).toEqual({
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nNo failures to report.',
+    });
+  });
+
+  it('should handle empty failures array', () => {
+    const message = prepareFailurePayload([]);
+    expect(message).toEqual({
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nNo failures to report.',
+    });
+  });
+
+  it('should format a single failure correctly', () => {
+    const failures = [
+      {
+        library: 'react-native-reanimated',
+        platform: 'iOS',
+      },
+    ];
+
+    const message = prepareFailurePayload(failures);
+    expect(message).toEqual({
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nThe integration of libraries with React Native nightly failed for the following libraries:\n\n❌ [iOS] react-native-reanimated',
+    });
+  });
+
+  it('should sort multiple failures by platform and library name', () => {
+    const failures = [
+      {
+        library: 'react-native-reanimated',
+        platform: 'iOS',
+      },
+      {
+        library: 'react-native-gesture-handler',
+        platform: 'Android',
+      },
+      {
+        library: 'react-native-screens',
+        platform: 'iOS',
+      },
+      {
+        library: 'react-native-svg',
+        platform: 'Android',
+      },
+    ];
+
+    const message = prepareFailurePayload(failures);
+
+    // The failures should be sorted: first Android (alphabetically), then iOS
+    // Within each platform, libraries should be sorted alphabetically
+    expect(message).toEqual({
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nThe integration of libraries with React Native nightly failed for the following libraries:\n\n❌ [Android] react-native-gesture-handler\n❌ [Android] react-native-svg\n❌ [iOS] react-native-reanimated\n❌ [iOS] react-native-screens',
+    });
+  });
+
+  it('should handle failures with missing properties', () => {
+    const failures = [
+      {
+        // Missing library
+        platform: 'iOS',
+      },
+      {
+        library: 'react-native-gesture-handler',
+        // Missing platform
+      },
+      {
+        // Both missing
+      },
+    ];
+
+    const message = prepareFailurePayload(failures);
+
+    expect(message).toEqual({
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nThe integration of libraries with React Native nightly failed for the following libraries:\n\n❌ [iOS] Unknown\n❌ [Unknown] react-native-gesture-handler\n❌ [Unknown] Unknown',
+    });
+  });
+});
+
+describe('sendMessageToDiscord', () => {
+  // Store the original fetch function
+  const originalFetch = global.fetch;
+
+  // Setup and teardown for each test
+  beforeEach(() => {
+    // Mock the global fetch function
+    global.fetch = jest.fn();
+    // Silence console logs during tests
+    jest.spyOn(console, 'log').mockImplementation(() => {});
+    jest.spyOn(console, 'error').mockImplementation(() => {});
+  });
+
+  afterEach(() => {
+    // Restore the original fetch function
+    global.fetch = originalFetch;
+    // Restore console functions
+    jest.restoreAllMocks();
+  });
+
+  it('should throw an error if webhook URL is missing', async () => {
+    await expect(sendMessageToDiscord(null, {})).rejects.toThrow(
+      'Discord webhook URL is missing',
+    );
+  });
+
+  it('should send a message successfully', async () => {
+    // Mock a successful response
+    global.fetch.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+    });
+
+    const webhook = 'https://discord.com/api/webhooks/123/abc';
+    const message = {content: 'Test message'};
+
+    await expect(sendMessageToDiscord(webhook, message)).resolves.not.toThrow();
+
+    // Verify fetch was called with the right arguments
+    expect(global.fetch).toHaveBeenCalledWith(webhook, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(message),
+    });
+
+    // Verify console.log was called
+    expect(console.log).toHaveBeenCalledWith(
+      'Successfully sent message to Discord',
+    );
+  });
+
+  it('should throw an error if the response is not ok', async () => {
+    // Mock a failed response
+    global.fetch.mockResolvedValueOnce({
+      ok: false,
+      status: 400,
+      text: jest.fn().mockResolvedValueOnce('Bad Request'),
+    });
+
+    const webhook = 'https://discord.com/api/webhooks/123/abc';
+    const message = {content: 'Test message'};
+
+    await expect(sendMessageToDiscord(webhook, message)).rejects.toThrow(
+      'HTTP status code: 400',
+    );
+
+    // Verify console.error was called
+    expect(console.error).toHaveBeenCalledWith(
+      'Failed to send message to Discord: 400 Bad Request',
+    );
+  });
+
+  it('should throw an error if fetch fails', async () => {
+    // Mock a network error
+    const networkError = new Error('Network error');
+    global.fetch.mockRejectedValueOnce(networkError);
+
+    const webhook = 'https://discord.com/api/webhooks/123/abc';
+    const message = {content: 'Test message'};
+
+    await expect(sendMessageToDiscord(webhook, message)).rejects.toThrow(
+      'Network error',
+    );
+  });
+});

.github/workflow-scripts/__tests__/publishTemplate-test.js

@@ -117,13 +117,13 @@ describe('#verifyPublishedTemplate', () => {
     it('will timeout if npm does not update package version after a set number of retries', async () => {
       const RETRIES = 2;
 
-      (await verifyPublishedTemplate('0.77.0', true, RETRIES),
+      await verifyPublishedTemplate('0.77.0', true, RETRIES),
         expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
           '@react-native-community/template',
           '0.77.0',
           'latest',
           2,
-        ));
+        );
     });
   });
 });

.github/workflow-scripts/__tests__/verifyArtifactsAreOnMaven-test.js

@@ -38,7 +38,7 @@ describe('#verifyArtifactsAreOnMaven', () => {
 
     expect(mockSleep).toHaveBeenCalledTimes(1);
     expect(mockFetch).toHaveBeenCalledWith(
-      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1/react-native-artifacts-0.78.1.pom',
+      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1',
     );
   });
 
@@ -55,7 +55,7 @@ describe('#verifyArtifactsAreOnMaven', () => {
 
     expect(mockSleep).toHaveBeenCalledTimes(1);
     expect(mockFetch).toHaveBeenCalledWith(
-      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1/react-native-artifacts-0.78.1.pom',
+      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1',
     );
   });
 
@@ -67,7 +67,7 @@ describe('#verifyArtifactsAreOnMaven', () => {
 
     expect(mockSleep).toHaveBeenCalledTimes(0);
     expect(mockFetch).toHaveBeenCalledWith(
-      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1/react-native-artifacts-0.78.1.pom',
+      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1',
     );
   });
 
@@ -81,7 +81,7 @@ describe('#verifyArtifactsAreOnMaven', () => {
     expect(mockSleep).toHaveBeenCalledTimes(90);
     expect(mockExit).toHaveBeenCalledWith(1);
     expect(mockFetch).toHaveBeenCalledWith(
-      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1/react-native-artifacts-0.78.1.pom',
+      'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/0.78.1',
     );
   });
 });

.github/workflow-scripts/__tests__/verifyReleaseOnNpm-test.js

@@ -83,13 +83,13 @@ describe('#verifyReleaseOnNPM', () => {
     it('will timeout if npm does not update package version after a set number of retries', async () => {
       const RETRIES = 2;
 
-      (await verifyReleaseOnNpm('0.77.0', true, RETRIES),
+      await verifyReleaseOnNpm('0.77.0', true, RETRIES),
         expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
           'react-native',
           '0.77.0',
           'latest',
           2,
-        ));
+        );
     });
 
     it('will timeout if npm does not update latest tag after a set number of retries', async () => {

.github/workflow-scripts/analyze_code.sh

@@ -4,16 +4,12 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
-export GITHUB_OWNER=-facebook
-export GITHUB_REPO=-react-native
+GITHUB_OWNER=-facebook
+GITHUB_REPO=-react-native
+export GITHUB_OWNER
+export GITHUB_REPO
 
-{
-  echo eslint
-  npm run lint --silent -- --format=json
-
-  echo flow
-  npm run flow-check --silent --json
-} | node private/react-native-bots/code-analysis-bot.js
+cat <(echo eslint; npm run lint --silent -- --format=json; echo flow; npm run flow-check --silent --json; echo google-java-format; node scripts/lint-java.js --diff) | node packages/react-native-bots/code-analysis-bot.js
 
 STATUS=$?
 if [ $STATUS == 0 ]; then
@@ -21,4 +17,3 @@ if [ $STATUS == 0 ]; then
 else
   echo "Code analysis failed, error status $STATUS."
 fi
-exit $STATUS

.github/workflow-scripts/collectNightlyOutcomes.js

@@ -0,0 +1,121 @@
+/**
+ * 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.
+ *
+ * @format
+ */
+
+const fs = require('fs');
+const path = require('path');
+const {
+  prepareFailurePayload,
+  sendMessageToDiscord,
+} = require('./notifyDiscord');
+
+function readOutcomes() {
+  const baseDir = '/tmp';
+  let outcomes = [];
+  fs.readdirSync(baseDir).forEach(file => {
+    const fullPath = path.join(baseDir, file);
+    if (fullPath.endsWith('outcome') && fs.statSync(fullPath).isDirectory) {
+      fs.readdirSync(fullPath).forEach(subFile => {
+        const subFullPath = path.join(fullPath, subFile);
+        if (subFullPath.endsWith('outcome')) {
+          const [library, status] = String(fs.readFileSync(subFullPath, 'utf8'))
+            .trim()
+            .split(':');
+          const platform = subFile.includes('android') ? 'Android' : 'iOS';
+          console.log(
+            `[${platform}] ${library} completed with status ${status}`,
+          );
+          outcomes.push({
+            library: library.trim(),
+            platform,
+            status: status.trim(),
+          });
+        }
+      });
+    } else if (fullPath.endsWith('outcome')) {
+      const [library, status] = String(fs.readFileSync(fullPath, 'utf8'))
+        .trim()
+        .split(':');
+      const platform = file.includes('android') ? 'Android' : 'iOS';
+      console.log(`[${platform}] ${library} completed with status ${status}`);
+      outcomes.push({
+        library: library.trim(),
+        platform,
+        status: status.trim(),
+      });
+    }
+  });
+  return outcomes;
+}
+
+function printFailures(outcomes) {
+  console.log('Printing failures...');
+  let failedLibraries = [];
+  outcomes.forEach(entry => {
+    if (entry.status !== 'success') {
+      console.log(
+        `❌ [${entry.platform}] ${entry.library} failed with status ${entry.status}`,
+      );
+      failedLibraries.push({
+        library: entry.library,
+        platform: entry.platform,
+      });
+    }
+  });
+  return failedLibraries;
+}
+
+/**
+ * Sends a message to Discord with the list of failures.
+ * @param {string} webHook - The Discord webhook URL
+ * @param {Array<Object>} failures - List of failures to report
+ * @returns {Promise<void>} - A promise that resolves when the message is sent
+ */
+async function notifyDiscord(webHook, failures) {
+  if (!webHook) {
+    console.error('Discord webhook URL is missing');
+    return;
+  }
+
+  if (!failures || failures.length === 0) {
+    console.log('No failures to report to Discord');
+    return;
+  }
+
+  try {
+    // Use the prepareFailurePayload function to format the message
+    const message = prepareFailurePayload(failures);
+
+    // Use the sendMessageToDiscord function to send the message
+    await sendMessageToDiscord(webHook, message);
+  } catch (error) {
+    console.error('Error in notifyDiscord function:', error);
+    throw error;
+  }
+}
+
+async function collectResults(discordWebHook) {
+  const outcomes = readOutcomes();
+  const failures = printFailures(outcomes);
+
+  if (failures.length > 0) {
+    if (discordWebHook) {
+      console.log('Sending to discord');
+      await notifyDiscord(discordWebHook, failures);
+    } else {
+      console.log('Web hook not set');
+    }
+    process.exit(1);
+  }
+  console.log('✅ All tests passed!');
+}
+
+module.exports = {
+  collectResults,
+  notifyDiscord,
+};

.github/workflow-scripts/extractIssueOncalls.js

@@ -25,31 +25,6 @@ function extractUsersFromScheduleAndDate(schedule, userMap, date) {
   return [user1, user2];
 }
 
-/**
- * You can invoke this script by doing:
- * ```
- * node .github/workflow-scripts/extractIssueOncalls.js $DATA
- * ```
- *
- * the $DATA is stored in the github secrets as ONCALL_SCHEDULE variable.
- * The format of the data is:
- * ```
- * {
- *   \"userMap\": {
- *     \"discord_handle1\": \"discord_id1\",
- *     \"discord_handle2\": \"discord_id2\",
- *    ...
- *  },
- *  \"schedule\": {
- *    \"2025-07-29\": [\"discord_handle1\", \"discord_handle2\"],
- *    \"2025-08-05\": [\"discord_handle3\", \"discord_handle4\"],
- *   ...
- * }
- * ```
- *
- * When uploading the secret, make sure that the JSON strings are escaped!
- * The script will fail otherwise, because GitHub will remove the `"` characters.
- */
 function main() {
   const configuration = process.argv[2];
   const {userMap, schedule} = JSON.parse(configuration);

.github/workflow-scripts/maestro-ios.js

@@ -87,11 +87,11 @@ async function launchAppOnSimulator(appId, udid, isDebug) {
 
 function startVideoRecording(jsengine, currentAttempt) {
   console.log(
-    `Start video record using pid: video_record_${currentAttempt}.pid`,
+    `Start video record using pid: video_record_${jsengine}_${currentAttempt}.pid`,
   );
 
   const recordingArgs =
-    `simctl io booted recordVideo video_record_${currentAttempt}.mov`.split(
+    `simctl io booted recordVideo video_record_${jsengine}_${currentAttempt}.mov`.split(
       ' ',
     );
   const recordingProcess = childProcess.spawn('xcrun', recordingArgs, {

.github/workflow-scripts/notifyDiscord.js

@@ -0,0 +1,90 @@
+/**
+ * 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.
+ *
+ * @format
+ */
+
+/**
+ * Sends a message to Discord using the webhook URL.
+ * @param {string} webHook - The Discord webhook URL
+ * @param {Object} message - The message to send
+ * @returns {Promise<void>} - A promise that resolves when the message is sent
+ */
+async function sendMessageToDiscord(webHook, message) {
+  if (!webHook) {
+    throw new Error('Discord webhook URL is missing');
+  }
+
+  // Send the request using fetch
+  const response = await fetch(webHook, {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify(message),
+  });
+
+  // Handle the response
+  if (response.ok) {
+    console.log('Successfully sent message to Discord');
+    return;
+  } else {
+    const errorText = await response.text();
+    console.error(
+      `Failed to send message to Discord: ${response.status} ${errorText}`,
+    );
+    throw new Error(`HTTP status code: ${response.status}`);
+  }
+}
+
+/**
+ * Prepares a formatted Discord message payload from a list of failures.
+ * @param {Array<Object>} failures - List of failures to format
+ * @returns {Object} - The formatted Discord message payload
+ */
+function prepareFailurePayload(failures) {
+  if (!failures || failures.length === 0) {
+    return {
+      content:
+        '⚠️ **React Native Nightly Integration Failures** ⚠️\n\nNo failures to report.',
+    };
+  }
+
+  // Sort failures by platform and then by library name
+  const sortedFailures = [...failures].sort((a, b) => {
+    // First sort by platform
+    const platformA = a.platform || 'Unknown';
+    const platformB = b.platform || 'Unknown';
+
+    if (platformA !== platformB) {
+      return platformA.localeCompare(platformB);
+    }
+
+    // Then sort by library name
+    const libraryA = a.library || 'Unknown';
+    const libraryB = b.library || 'Unknown';
+    return libraryA.localeCompare(libraryB);
+  });
+
+  // Format the failures into a message
+  const formattedFailures = sortedFailures
+    .map(failure => {
+      const library = failure.library || 'Unknown';
+      const platform = failure.platform || 'Unknown';
+      return `❌ [${platform}] ${library}`;
+    })
+    .join('\n');
+
+  return {
+    content: `⚠️ **React Native Nightly Integration Failures** ⚠️\n\nThe integration of libraries with React Native nightly failed for the following libraries:\n\n${formattedFailures}`,
+  };
+}
+
+// Export the functions using CommonJS syntax
+module.exports = {
+  prepareFailurePayload,
+  sendMessageToDiscord,
+};

.github/workflow-scripts/verifyArtifactsAreOnMaven.js

@@ -13,14 +13,13 @@ const SLEEP_S = 60; // 1 minute
 const MAX_RETRIES = 90; // 90 attempts. Waiting between attempt: 1 min. Total time: 90 min.
 const ARTIFACT_URL =
   'https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/';
-const ARTIFACT_NAME = 'react-native-artifacts-';
 
 async function verifyArtifactsAreOnMaven(version, retries = MAX_RETRIES) {
   if (version.startsWith('v')) {
     version = version.substring(1);
   }
 
-  const artifactUrl = `${ARTIFACT_URL}${version}/${ARTIFACT_NAME}${version}.pom`;
+  const artifactUrl = `${ARTIFACT_URL}${version}`;
   for (let currentAttempt = 1; currentAttempt <= retries; currentAttempt++) {
     const response = await fetch(artifactUrl);
 

.github/workflows/bump-podfile-lock.yml

@@ -18,10 +18,6 @@ jobs:
         run: |
           git config --local user.email "bot@reactnative.dev"
           git config --local user.name "React Native Bot"
-      - name: Setup xcode
-        uses: ./.github/actions/setup-xcode
-        with:
-          xcode-version: '16.2.0'
       - name: Extract branch name
         run: |
           TAG="${{ github.ref_name }}";

.github/workflows/cache-reaper.yml

@@ -14,7 +14,7 @@ jobs:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
+      - name: Use Node.js 18
+        uses: actions/setup-node@v4
       - name: Trim the cache
         run: node scripts/clean-gha-cache.js

.github/workflows/check-nightly.yml

@@ -0,0 +1,34 @@
+# This jobs runs every day 2 hours after the nightly job and its purpose is to report
+# a failure in case the nightly failed to be published. We are going to hook this to an internal automation.
+name: Check Nigthlies
+
+on:
+  workflow_dispatch:
+  # nightly build @ 4:15 AM UTC
+  schedule:
+    - cron: '15 4 * * *'
+
+jobs:
+  check-nightly:
+    runs-on: ubuntu-latest
+    if: github.repository == 'facebook/react-native'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Check nightly
+        run: |
+          TODAY=$(date "+%Y%m%d")
+          echo "Checking nightly for $TODAY"
+          NIGHTLY="$(npm view react-native | grep $TODAY)"
+          if [[ -z $NIGHTLY ]]; then
+            echo 'Nightly job failed.'
+            exit 1
+          else
+            echo 'Nightly Worked, All Good!'
+          fi
+
+  test-libraries:
+    uses: ./.github/workflows/test-libraries-on-nightlies.yml
+    needs: check-nightly
+    secrets:
+      discord_webhook_url: ${{ secrets.NIGHTLY_DISCORD_WEBHOOK }}

.github/workflows/danger-pr.yml

@@ -18,14 +18,10 @@ jobs:
     if: github.repository == 'facebook/react-native'
     steps:
       - uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
       - name: Run yarn install
         uses: ./.github/actions/yarn-install
-      - name: Run diff-js-api-breaking-changes
-        uses: ./.github/actions/diff-js-api-breaking-changes
       - name: Danger
         run: yarn danger ci --use-github-checks --failOnErrors
-        working-directory: private/react-native-bots
+        working-directory: packages/react-native-bots
         env:
           DANGER_GITHUB_API_TOKEN: ${{ secrets.REACT_NATIVE_BOT_GITHUB_TOKEN }}

.github/workflows/monitor-new-issues.yml

@@ -17,7 +17,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Set up Node.js
-        uses: ./.github/actions/setup-node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
       - name: Install dependencies
         uses:  ./.github/actions/yarn-install
       - name: Extract next oncall
@@ -27,6 +29,10 @@ jobs:
           ONCALL2=$(echo $ONCALLS | cut -d ' ' -f 2)
           echo "oncall1=$ONCALL1" >> $GITHUB_ENV
           echo "oncall2=$ONCALL2" >> $GITHUB_ENV
+      - name: Print oncalls
+        run: |
+          echo "oncall1: ${{ env.oncall1 }}"
+          echo "oncall2: ${{ env.oncall2 }}"
       - name: Monitor New Issues
         uses: react-native-community/repo-monitor@v1.0.1
         with:

.github/workflows/nightly.yml

@@ -101,14 +101,9 @@ jobs:
           flavor: ${{ matrix.flavor }}
 
   prebuild_apple_dependencies:
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
+    uses: ./.github/workflows/prebuild-ios.yml
     secrets: inherit
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    secrets: inherit
-    needs: [prebuild_apple_dependencies, build_hermes_macos]
-
   build_hermesc_linux:
     runs-on: ubuntu-latest
     needs: prepare_hermes_workspace
@@ -125,12 +120,12 @@ jobs:
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
   build_hermesc_windows:
-    runs-on: windows-2025
+    runs-on: windows-2019
     needs: prepare_hermes_workspace
     env:
-      HERMES_WS_DIR: 'C:\tmp\hermes'
-      HERMES_TARBALL_ARTIFACTS_DIR: 'C:\tmp\hermes\hermes-runtime-darwin'
-      HERMES_OSXBIN_ARTIFACTS_DIR: 'C:\tmp\hermes\osx-bin'
+      HERMES_WS_DIR: 'D:\tmp\hermes'
+      HERMES_TARBALL_ARTIFACTS_DIR: 'D:\tmp\hermes\hermes-runtime-darwin'
+      HERMES_OSXBIN_ARTIFACTS_DIR: 'D:\tmp\hermes\osx-bin'
       ICU_URL: "https://github.com/unicode-org/icu/releases/download/release-64-2/icu4c-64_2-Win64-MSVC2017.zip"
       MSBUILD_DIR: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin'
       CMAKE_DIR: 'C:\Program Files\CMake\bin'
@@ -175,7 +170,6 @@ jobs:
         build_hermesc_windows,
         build_android,
         prebuild_apple_dependencies,
-        prebuild_react_native_core,
       ]
     container:
       image: reactnativecommunity/react-native-android:latest

.github/workflows/prebuild-ios-core.yml

@@ -1,212 +0,0 @@
-name: Prebuild iOS Dependencies
-
-on:
-  workflow_call: # this directive allow us to call this workflow from other workflows
-
-
-jobs:
-  build-rn-slice:
-    runs-on: macos-14
-    strategy:
-      fail-fast: false
-      matrix:
-        flavor: ['Debug', 'Release']
-        slice: [
-          'ios',
-          'ios-simulator',
-          'mac-catalyst',
-        ]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Restore cache if present
-        id: restore-ios-slice
-        uses: actions/cache/restore@v4
-        with:
-          key: v3-ios-core-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashFiles('packages/react-native/Package.swift', 'packages/react-native/scripts/ios-prebuild/*.js', 'packages/react-native/scripts/ios-prebuild.js', 'packages/react-native/React/**/*', 'packages/react-native/ReactCommon/**/*', 'packages/react-native/Libraries/**/*') }}
-          path: packages/react-native/
-      - name: Setup node.js
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: ./.github/actions/setup-node
-      - name: Setup xcode
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: ./.github/actions/setup-xcode
-        with:
-          xcode-version: '16.2.0'
-      - name: Yarn Install
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Download Hermes
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          name: hermes-darwin-bin-${{ matrix.flavor }}
-          path: /tmp/hermes/hermes-runtime-darwin
-      - name: Extract Hermes
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          HERMES_TARBALL_ARTIFACTS_DIR=/tmp/hermes/hermes-runtime-darwin
-          if [ ! -d $HERMES_TARBALL_ARTIFACTS_DIR ]; then
-            echo "Hermes tarball artifacts dir not present ($HERMES_TARBALL_ARTIFACTS_DIR)."
-            exit 0
-          fi
-
-          TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ matrix.flavor }}")
-          TARBALL_PATH=$HERMES_TARBALL_ARTIFACTS_DIR/$TARBALL_FILENAME
-
-          echo "Looking for $TARBALL_FILENAME in $HERMES_TARBALL_ARTIFACTS_DIR"
-          echo "$TARBALL_PATH"
-
-          if [ ! -f $TARBALL_PATH ]; then
-            echo "Hermes tarball not present ($TARBALL_PATH). Build Hermes from source."
-            exit 0
-          fi
-
-          echo "Found Hermes tarball at $TARBALL_PATH"
-          echo "HERMES_ENGINE_TARBALL_PATH=$TARBALL_PATH" >> $GITHUB_ENV
-      - name: Download ReactNativeDependencies
-        uses: actions/download-artifact@v4
-        with:
-          name: ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-          path: /tmp/third-party/
-      - name: Extract ReactNativeDependencies
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          # Extract ReactNativeDependencies
-          tar -xzf /tmp/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz -C /tmp/third-party/
-
-          # Create destination folder
-          mkdir -p packages/react-native/third-party/
-
-          # Move the XCFramework in the destination directory
-          mv /tmp/third-party/packages/react-native/third-party/ReactNativeDependencies.xcframework packages/react-native/third-party/ReactNativeDependencies.xcframework
-
-          VERSION=$(jq -r '.version' packages/react-native/package.json)
-          echo "$VERSION-${{matrix.flavor}}" > "packages/react-native/third-party/version.txt"
-          cat "packages/react-native/third-party/version.txt"
-          # Check destination directory
-          ls -lR packages/react-native/third-party/
-      - name: Setup the workspace
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          cd packages/react-native
-          node scripts/ios-prebuild.js -s -f "${{ matrix.flavor }}"
-      - name: Build React Native
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          # This is going to be replaced by a CLI script
-          cd packages/react-native
-          node scripts/ios-prebuild -b -f "${{ matrix.flavor }}" -p "${{ matrix.slice }}"
-      - name: Upload headers
-        uses: actions/upload-artifact@v4
-        with:
-          name: prebuild-ios-core-headers-${{ matrix.flavor }}-${{ matrix.slice }}
-          path:
-            packages/react-native/.build/headers
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v4.3.4
-        with:
-          name: prebuild-ios-core-slice-${{ matrix.flavor }}-${{ matrix.slice }}
-          path: |
-            packages/react-native/.build/output/spm/${{ matrix.flavor }}/Build/Products
-      - name: Save Cache
-        uses: actions/cache/save@v4
-        if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
-        with:
-          key: v3-ios-core-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashFiles('packages/react-native/Package.swift', 'packages/react-native/scripts/ios-prebuild/*.js', 'packages/react-native/scripts/ios-prebuild.js', 'packages/react-native/React/**/*', 'packages/react-native/ReactCommon/**/*', 'packages/react-native/Libraries/**/*') }}
-          path: |
-            packages/react-native/.build/output/spm/${{ matrix.flavor }}/Build/Products
-            packages/react-native/.build/headers
-
-  compose-xcframework:
-    runs-on: macos-14
-    needs: [build-rn-slice]
-    strategy:
-      fail-fast: false
-      matrix:
-        flavor: ['Debug', 'Release']
-    env:
-      REACT_ORG_CODE_SIGNING_P12_CERT: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT }}
-      REACT_ORG_CODE_SIGNING_P12_CERT_PWD: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT_PWD }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Restore cache if present
-        id: restore-ios-xcframework
-        uses: actions/cache/restore@v4
-        with:
-          path: packages/react-native/.build/output/xcframeworks
-          key: v2-ios-core-xcframework-${{ matrix.flavor }}-${{ hashFiles('packages/react-native/Package.swift', 'packages/react-native/scripts/ios-prebuild/*.js', 'packages/react-native/scripts/ios-prebuild.js', 'packages/react-native/React/**/*', 'packages/react-native/ReactCommon/**/*', 'packages/react-native/Libraries/**/*') }}
-      - name: Setup node.js
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        uses: ./.github/actions/setup-node
-      - name: Setup xcode
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        uses: ./.github/actions/setup-xcode
-        with:
-          xcode-version: '16.2.0'
-      - name: Yarn Install
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Download slice artifacts
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          pattern: prebuild-ios-core-slice-${{ matrix.flavor }}-*
-          path: packages/react-native/.build/output/spm/${{ matrix.flavor }}/Build/Products
-          merge-multiple: true
-      - name: Download headers
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          pattern: prebuild-ios-core-headers-${{ matrix.flavor }}-*
-          path: packages/react-native/.build/headers
-          merge-multiple: true
-      - name: Setup Keychain
-        if: ${{ steps.restore-ios-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT != '' }}
-        uses: apple-actions/import-codesign-certs@v3 # https://github.com/marketplace/actions/import-code-signing-certificates
-        with:
-          p12-file-base64: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT }}
-          p12-password: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT_PWD }}
-      - name: Create XCFramework
-        if: ${{ steps.restore-ios-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT == '' }}
-        run: |
-          cd packages/react-native
-          node scripts/ios-prebuild -c -f "${{ matrix.flavor }}"
-      - name: Create and Sign XCFramework
-        if: ${{ steps.restore-ios-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT != '' }}
-        run: |
-          cd packages/react-native
-          node scripts/ios-prebuild -c -f "${{ matrix.flavor }}" -i "React Org"
-      - name: Compress and Rename XCFramework
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        run: |
-          cd packages/react-native/.build/output/xcframeworks/${{matrix.flavor}}
-          tar -cz -f ../ReactCore${{matrix.flavor}}.xcframework.tar.gz React.xcframework
-      - name: Compress and Rename dSYM
-        if: steps.restore-ios-xcframework.outputs.cache-hit != 'true'
-        run: |
-          cd packages/react-native/.build/output/xcframeworks/${{matrix.flavor}}/Symbols
-          tar -cz -f ../../ReactCore${{ matrix.flavor }}.framework.dSYM.tar.gz .
-      - name: Upload XCFramework Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: ReactCore${{ matrix.flavor }}.xcframework.tar.gz
-          path: packages/react-native/.build/output/xcframeworks/ReactCore${{matrix.flavor}}.xcframework.tar.gz
-      - name: Upload dSYM Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: ReactCore${{ matrix.flavor }}.framework.dSYM.tar.gz
-          path: packages/react-native/.build/output/xcframeworks/ReactCore${{matrix.flavor}}.framework.dSYM.tar.gz
-      - name: Save cache if present
-        if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
-        uses: actions/cache/save@v4
-        with:
-          path: |
-            packages/react-native/.build/output/xcframeworks/ReactCore${{matrix.flavor}}.xcframework.tar.gz
-            packages/react-native/.build/output/xcframeworks/ReactCore${{matrix.flavor}}.framework.dSYM.tar.gz
-          key: v2-ios-core-xcframework-${{ matrix.flavor }}-${{ hashFiles('packages/react-native/Package.swift', 'packages/react-native/scripts/ios-prebuild/*.js', 'packages/react-native/scripts/ios-prebuild.js', 'packages/react-native/React/**/*', 'packages/react-native/ReactCommon/**/*', 'packages/react-native/Libraries/**/*') }}

.github/workflows/prebuild-ios.yml

@@ -1,4 +1,4 @@
-name: Prebuild iOS Dependencies
+name: Prebuild iOS
 
 on:
   workflow_call: # this directive allow us to call this workflow from other workflows
@@ -179,9 +179,8 @@ jobs:
       - name: Compress and Rename dSYM
         if: steps.restore-xcframework.outputs.cache-hit != 'true'
         run: |
-          cd packages/react-native/third-party/Symbols/
-          tar -cz -f ../ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz .
-          mv ../ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz ./ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz
+          tar -cz -f packages/react-native/third-party/Symbols/ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz \
+            packages/react-native/third-party/Symbols/ReactNativeDependencies.framework.dSYM
       - name: Upload XCFramework Artifact
         uses: actions/upload-artifact@v4
         with:

.github/workflows/publish-bumped-packages.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Build packages
         run: yarn build
       - name: Build types
-        run: yarn build-types --skip-snapshot
+        run: yarn build-types
       - name: Set NPM auth token
         run: echo "//registry.npmjs.org/:_authToken=$GHA_NPM_TOKEN" > ~/.npmrc
       - name: Find and publish all bumped packages

.github/workflows/publish-release.yml

@@ -96,16 +96,10 @@ jobs:
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
           flavor: ${{ matrix.flavor }}
-
   prebuild_apple_dependencies:
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
+    uses: ./.github/workflows/prebuild-ios.yml
     secrets: inherit
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    secrets: inherit
-    needs: [prebuild_apple_dependencies, build_hermes_macos]
-
   build_hermesc_linux:
     runs-on: ubuntu-latest
     needs: prepare_hermes_workspace
@@ -122,12 +116,12 @@ jobs:
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
   build_hermesc_windows:
-    runs-on: windows-2025
+    runs-on: windows-2019
     needs: prepare_hermes_workspace
     env:
-      HERMES_WS_DIR: 'C:\tmp\hermes'
-      HERMES_TARBALL_ARTIFACTS_DIR: 'C:\tmp\hermes\hermes-runtime-darwin'
-      HERMES_OSXBIN_ARTIFACTS_DIR: 'C:\tmp\hermes\osx-bin'
+      HERMES_WS_DIR: 'D:\tmp\hermes'
+      HERMES_TARBALL_ARTIFACTS_DIR: 'D:\tmp\hermes\hermes-runtime-darwin'
+      HERMES_OSXBIN_ARTIFACTS_DIR: 'D:\tmp\hermes\osx-bin'
       ICU_URL: "https://github.com/unicode-org/icu/releases/download/release-64-2/icu4c-64_2-Win64-MSVC2017.zip"
       MSBUILD_DIR: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin'
       CMAKE_DIR: 'C:\Program Files\CMake\bin'
@@ -140,6 +134,27 @@ jobs:
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
+  build_android:
+    runs-on: 8-core-ubuntu
+    needs: [set_release_type]
+    container:
+      image: reactnativecommunity/react-native-android:latest
+      env:
+        TERM: "dumb"
+        GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+        ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
+        ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
+        ORG_GRADLE_PROJECT_SONATYPE_USERNAME: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_USERNAME }}
+        ORG_GRADLE_PROJECT_SONATYPE_PASSWORD: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_PASSWORD }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Android
+        uses: ./.github/actions/build-android
+        with:
+          release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
+          gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
+
   build_npm_package:
     runs-on: 8-core-ubuntu
     needs:
@@ -149,8 +164,8 @@ jobs:
         build_hermes_macos,
         build_hermesc_linux,
         build_hermesc_windows,
+        build_android,
         prebuild_apple_dependencies,
-        prebuild_react_native_core,
       ]
     container:
       image: reactnativecommunity/react-native-android:latest

.github/workflows/retry-workflow.yml

@@ -1,19 +0,0 @@
-name: Retry workflow
-# Based on https://stackoverflow.com/a/78314483
-
-on:
-    workflow_dispatch:
-        inputs:
-            run_id:
-                required: true
-jobs:
-    rerun:
-        runs-on: ubuntu-latest
-        steps:
-            - name: rerun ${{ inputs.run_id }}
-              env:
-                  GH_REPO: ${{ github.repository }}
-                  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-              run: |
-                  gh run watch ${{ inputs.run_id }} > /dev/null 2>&1
-                  gh run rerun ${{ inputs.run_id }} --failed

.github/workflows/stale-bot.yml

@@ -14,8 +14,8 @@ jobs:
         with:
           repo-token: ${{ secrets.REACT_NATIVE_BOT_GITHUB_TOKEN }}
           days-before-stale: 180
-          stale-issue-message: 'This issue is stale because it has been open for 180 days with no activity. It will be closed in 7 days unless you comment on it or remove the "Stale" label.'
-          stale-pr-message: 'This PR is stale because it has been open for 180 days with no activity. It will be closed in 7 days unless you comment on it or remove the "Stale" label.'
+          stale-issue-message: 'This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 7 days.'
+          stale-pr-message: 'This PR is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 7 days.'
           close-issue-message: 'This issue was closed because it has been stalled for 7 days with no activity.'
           close-pr-message: 'This PR was closed because it has been stalled for 7 days with no activity.'
           exempt-issue-labels: 'Help Wanted :octocat:, Good first issue, Never gets stale, Issue: Author Provided Repro'

.github/workflows/test-all.yml

@@ -2,6 +2,11 @@ name: Test All
 
 on:
   workflow_dispatch:
+    inputs:
+      run-e2e-tests:
+        description: Whether to run E2E tests or not
+        type: boolean
+        default: false
   pull_request:
   push:
     branches:
@@ -112,18 +117,13 @@ jobs:
           flavor: ${{ matrix.flavor }}
 
   prebuild_apple_dependencies:
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
+    uses: ./.github/workflows/prebuild-ios.yml
     secrets: inherit
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    secrets: inherit
-    needs: [prebuild_apple_dependencies, build_hermes_macos]
-
   test_ios_rntester_ruby_3_2_0:
     runs-on: macos-14
     needs:
-      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core]
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies]
     env:
       HERMES_WS_DIR: /tmp/hermes
       HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
@@ -136,12 +136,31 @@ jobs:
           ruby-version: "3.2.0"
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
-          flavor: Debug
+
+  test_ios_rntester_dynamic_frameworks:
+    runs-on: macos-14
+    needs:
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Run it
+        uses: ./.github/actions/test-ios-rntester
+        with:
+          use-frameworks: DynamicFrameworks
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
   test_ios_rntester:
     runs-on: macos-14-large
     needs:
-      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core]
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies]
     env:
       HERMES_WS_DIR: /tmp/hermes
       HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
@@ -149,39 +168,45 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        architecture: [NewArch, OldArch]
         flavor: [Debug, Release]
-        frameworks: [StaticLibraries, DynamicFrameworks]
+        exclude: # We don't want to test the Old Arch in Release for E2E
+          - architecture: OldArch
+            flavor: Release
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Run it
         uses: ./.github/actions/test-ios-rntester
         with:
-          use-frameworks: ${{ matrix.frameworks }}
+          architecture: ${{ matrix.architecture }}
+          run-unit-tests: "false"
+          use-frameworks: StaticLibraries
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
           flavor: ${{ matrix.flavor }}
 
   test_e2e_ios_rntester:
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: macos-14-large
     needs:
       [test_ios_rntester]
     env:
       HERMES_WS_DIR: /tmp/hermes
       HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
+        architecture: [NewArch]
         flavor: [Debug, Release]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
       - name: Download App
         uses: actions/download-artifact@v4
         with:
-          name: RNTesterApp-NewArch-${{ matrix.flavor }}
+          name: RNTesterApp-${{ matrix.architecture }}-${{ matrix.flavor }}
           path: /tmp/RNTesterBuild/RNTester.app
       - name: Check downloaded folder content
         run: ls -lR /tmp/RNTesterBuild
@@ -196,15 +221,18 @@ jobs:
           flavor: ${{ matrix.flavor }}
 
   test_e2e_ios_templateapp:
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: macos-14-large
     needs: [build_npm_package, prebuild_apple_dependencies]
     env:
       HERMES_WS_DIR: /tmp/hermes
       HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
         flavor: [Debug, Release]
+        architecture: [OldArch, NewArch]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -238,19 +266,6 @@ jobs:
       - name: Print third-party folder
         shell: bash
         run: ls -lR /tmp/third-party
-      - name: Download React Native Prebuilds
-        uses: actions/download-artifact@v4
-        with:
-          name: ReactCore${{ matrix.flavor }}.xcframework.tar.gz
-          path: /tmp/ReactCore
-      - name: Print ReactCore folder
-        shell: bash
-        run: ls -lR /tmp/ReactCore
-      - name: Configure git
-        shell: bash
-        run: |
-            git config --global user.email "react-native-bot@meta.com"
-            git config --global user.name "React Native Bot"
       - name: Prepare artifacts
         run: |
           REACT_NATIVE_PKG=$(find /tmp/react-native-tmp -type f -name "*.tgz")
@@ -271,9 +286,12 @@ jobs:
           cd /tmp/RNTestProject/ios
           bundle install
           NEW_ARCH_ENABLED=1
+          if [[ ${{ matrix.architecture }} == "OldArch" ]]; then
+            echo "Disable the New Architecture"
+            NEW_ARCH_ENABLED=0
+          fi
 
           export RCT_USE_LOCAL_RN_DEP=/tmp/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-          export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ matrix.flavor }}.xcframework.tar.gz"
           HERMES_ENGINE_TARBALL_PATH=$HERMES_PATH RCT_NEW_ARCH_ENABLED=$NEW_ARCH_ENABLED bundle exec pod install
 
           xcodebuild \
@@ -291,14 +309,18 @@ jobs:
           maestro-flow: ./scripts/e2e/.maestro/
           flavor: ${{ matrix.flavor }}
           working-directory: /tmp/RNTestProject
+          architecture: ${{ matrix.architecture }}
 
   test_e2e_android_templateapp:
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: 4-core-ubuntu
     needs: build_npm_package
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
         flavor: [debug, release]
+        architecture: [OldArch, NewArch]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -344,6 +366,11 @@ jobs:
           cd /tmp/RNTestProject
           echo "react.internal.mavenLocalRepo=$MAVEN_LOCAL" >> android/gradle.properties
 
+          if [[ ${{matrix.architecture}} == "OldArch" ]]; then
+            echo "Disabling the New Architecture"
+            sed -i 's/newArchEnabled=true/newArchEnabled=false/' android/gradle.properties
+          fi
+
           # Build
           cd android
           CAPITALIZED_FLAVOR=$(echo "${{ matrix.flavor }}" | awk '{print toupper(substr($0, 1, 1)) substr($0, 2)}')
@@ -359,6 +386,7 @@ jobs:
           install-java: 'false'
           flavor: ${{ matrix.flavor }}
           working-directory: /tmp/RNTestProject
+          architecture: ${{ matrix.architecture }}
 
   build_hermesc_linux:
     runs-on: ubuntu-latest
@@ -375,32 +403,13 @@ jobs:
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
-  run_fantom_tests:
-    runs-on: 8-core-ubuntu
-    needs: [set_release_type]
-    container:
-      image: reactnativecommunity/react-native-android:latest
-      env:
-        TERM: "dumb"
-        GRADLE_OPTS: "-Dorg.gradle.daemon=false"
-        ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
-        ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Build and Test Fantom
-        uses: ./.github/actions/run-fantom-tests
-        with:
-          release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
-          gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
-
   build_hermesc_windows:
-    runs-on: windows-2025
+    runs-on: windows-2019
     needs: prepare_hermes_workspace
     env:
-      HERMES_WS_DIR: 'C:\tmp\hermes'
-      HERMES_TARBALL_ARTIFACTS_DIR: 'C:\tmp\hermes\hermes-runtime-darwin'
-      HERMES_OSXBIN_ARTIFACTS_DIR: 'C:\tmp\hermes\osx-bin'
+      HERMES_WS_DIR: 'D:\tmp\hermes'
+      HERMES_TARBALL_ARTIFACTS_DIR: 'D:\tmp\hermes\hermes-runtime-darwin'
+      HERMES_OSXBIN_ARTIFACTS_DIR: 'D:\tmp\hermes\osx-bin'
       ICU_URL: "https://github.com/unicode-org/icu/releases/download/release-64-2/icu4c-64_2-Win64-MSVC2017.zip"
       MSBUILD_DIR: 'C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin'
       CMAKE_DIR: 'C:\Program Files\CMake\bin'
@@ -430,9 +439,11 @@ jobs:
         uses: ./.github/actions/build-android
         with:
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
+          run-e2e-tests: true # ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
           gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
 
   test_e2e_android_rntester:
+    # if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: 4-core-ubuntu
     needs: [build_android]
     strategy:
@@ -450,14 +461,14 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           name: rntester-${{ matrix.flavor }}
-          path: ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.flavor }}/
+          path: ./packages/rn-tester/android/app/build/outputs/apk/hermes/${{ matrix.flavor }}/
       - name: Print folder structure
-        run: ls -lR ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.flavor }}/
+        run: ls -lR ./packages/rn-tester/android/app/build/outputs/apk/hermes/${{ matrix.flavor }}/
       - name: Run E2E Tests
         uses: ./.github/actions/maestro-android
         timeout-minutes: 60
         with:
-          app-path: ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.flavor }}/app-x86-${{ matrix.flavor }}.apk
+          app-path: ./packages/rn-tester/android/app/build/outputs/apk/hermes/${{ matrix.flavor }}/app-hermes-x86-${{ matrix.flavor }}.apk
           app-id: com.facebook.react.uiapp
           maestro-flow: ./packages/rn-tester/.maestro
           flavor: ${{ matrix.flavor }}
@@ -473,7 +484,6 @@ jobs:
         build_hermesc_windows,
         build_android,
         prebuild_apple_dependencies,
-        prebuild_react_native_core,
       ]
     container:
       image: reactnativecommunity/react-native-android:latest
@@ -510,6 +520,7 @@ jobs:
       fail-fast: false
       matrix:
         flavor: [Debug, Release]
+        architecture: [NewArch, OldArch]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -534,11 +545,14 @@ jobs:
       - name: Prepare the Helloworld application
         shell: bash
         run: node ./scripts/e2e/init-project-e2e.js --useHelloWorld --pathToLocalReactNative "$GITHUB_WORKSPACE/build/$(cat build/react-native-package-version)"
-      - name: Build the Helloworld application for ${{ matrix.flavor }} with Architecture set to New Architecture.
+      - name: Build the Helloworld application for ${{ matrix.flavor }} with Architecture set to ${{ matrix.architecture }}.
         shell: bash
         run: |
-          cd private/helloworld/android
+          cd packages/helloworld/android
           args=()
+          if [[ ${{ matrix.architecture }} == "OldArch" ]]; then
+            args+=(--arch old)
+          fi
           if [[ ${{ matrix.flavor }} == "Release" ]]; then
             args+=(--prod)
           fi
@@ -546,13 +560,13 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4.3.4
         with:
-          name: helloworld-apk-${{ matrix.flavor }}-NewArch-hermes
-          path: ./private/helloworld/android/app/build/outputs/apk/
+          name: helloworld-apk-${{ matrix.flavor }}-${{ matrix.architecture }}-hermes
+          path: ./packages/helloworld/android/app/build/outputs/apk/
           compression-level: 0
 
   test_ios_helloworld_with_ruby_3_2_0:
     runs-on: macos-14
-    needs: [prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core] # prepare_hermes_workspace must be there because we need its reference to retrieve a couple of outputs
+    needs: [prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies] # prepare_hermes_workspace must be there because we need its reference to retrieve a couple of outputs
     env:
       PROJECT_NAME: iOSTemplateProject
       HERMES_WS_DIR: /tmp/hermes
@@ -563,13 +577,14 @@ jobs:
       - uses: ./.github/actions/test-ios-helloworld
         with:
           ruby-version: 3.2.0
+          architecture: NewArch
           flavor: Debug
           hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
           react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
   test_ios_helloworld:
     runs-on: macos-14
-    needs: [prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core] # prepare_hermes_workspace must be there because we need its reference to retrieve a couple of outputs
+    needs: [prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies] # prepare_hermes_workspace must be there because we need its reference to retrieve a couple of outputs
     strategy:
       matrix:
         flavor: [Debug, Release]
@@ -597,7 +612,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: ["24.4.1", "22", "20.19.4"]
+        node-version: ["22", "20", "18"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -613,47 +628,7 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Run all the linters
+      - name: Run all the Linters
         uses: ./.github/actions/lint
         with:
           github-token: ${{ env.GH_TOKEN }}
-
-  # This job should help with the E2E flakyness.
-  # In case E2E tests fails, it launches a new retry-workflow workflow, passing the current run_id as input.
-  # The retry-workflow reruns only the failed jobs of the current test-all workflow using
-  # ```
-  # gh run rerun ${{ inputs.run_id }} --failed
-  # ```
-  # From https://stackoverflow.com/a/78314483 it seems like that adding the extra workflow
-  # rather then calling directly this command should improve stability of this solution.
-  # This is exactly the same as rerunning failed tests from the GH UI, but automated.
-  rerun-failed-jobs:
-    runs-on: ubuntu-latest
-    needs: [test_e2e_ios_rntester, test_e2e_android_rntester, test_e2e_ios_templateapp, test_e2e_android_templateapp]
-    if: ${{ github.ref == 'refs/heads/main' && always() }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Rerun failed jobs in the current workflow
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          SHOULD_RETRY=${{fromJSON(github.run_attempt) < 3}}
-          if [[ $SHOULD_RETRY == "false" ]]; then
-            exit 0
-          fi
-
-          RNTESTER_ANDROID_FAILED=${{ needs.test_e2e_android_rntester.result == 'failure' }}
-          TEMPLATE_ANDROID_FAILED=${{ needs.test_e2e_android_templateapp.result == 'failure' }}
-          RNTESTER_IOS_FAILED=${{ needs.test_e2e_ios_rntester.result == 'failure' }}
-          TEMPLATE_IOS_FAILED=${{ needs.test_e2e_ios_templateapp.result == 'failure' }}
-
-          echo "RNTESTER_ANDROID_FAILED: $RNTESTER_ANDROID_FAILED"
-          echo "TEMPLATE_ANDROID_FAILED: $TEMPLATE_ANDROID_FAILED"
-          echo "RNTESTER_IOS_FAILED: $RNTESTER_IOS_FAILED"
-          echo "TEMPLATE_IOS_FAILED: $TEMPLATE_IOS_FAILED"
-
-          if [[ $RNTESTER_ANDROID_FAILED == "true" || $TEMPLATE_ANDROID_FAILED == "true" || $RNTESTER_IOS_FAILED == "true" || $TEMPLATE_IOS_FAILED == "true" ]]; then
-            echo "Rerunning failed jobs in the current workflow"
-            gh workflow run retry-workflow.yml -F run_id=${{ github.run_id }}
-          fi

.github/workflows/test-libraries-on-nightlies.yml

@@ -0,0 +1,98 @@
+name: Test Libraries on Nightlies
+
+on:
+  workflow_call:
+    secrets:
+      discord_webhook_url:
+        required: true
+
+
+# We use the matrix.library entry to specify the dependency we want to use
+# The key is used directly as the <pkg> in the `yarn add <pkg>` command.
+jobs:
+  runner-setup:
+    runs-on: ubuntu-latest
+    outputs:
+      runners: '{"ios":"macos-14-large", "android": "ubuntu-latest"}'
+    steps:
+      - run: echo no-op
+
+  test-library-on-nightly:
+    name: "[${{ matrix.platform }}] ${{ matrix.library }}"
+    needs: runner-setup
+    runs-on: ${{ fromJSON(needs.runner-setup.outputs.runners)[matrix.platform] }}
+    continue-on-error: true
+    strategy:
+      matrix:
+        library: [
+          "react-native-async-storage",
+          "react-native-blob-util",
+          "@react-native-clipboard/clipboard",
+          "@react-native-community/datetimepicker",
+          "react-native-gesture-handler",
+          "react-native-image-picker",
+          "react-native-linear-gradient",
+          "@react-native-masked-view/masked-view",
+          # "react-native-maps", React Native Maps with the New Arch support has a complex cocoapods setup for iOS. It needs a dedicated workflow.
+          "@react-native-community/netinfo",
+          "react-native-reanimated@nightly react-native-worklets@nightly", #reanimated requires worklet to be explicitly installed as a separate package
+          "react-native-svg",
+          "react-native-video",
+          "react-native-webview",
+          "react-native-mmkv",
+          "react-native-screens",
+          "react-native-pager-view",
+          "@react-native-community/slider",
+          # additional OSS libs used internally
+          "scandit-react-native-datacapture-barcode scandit-react-native-datacapture-core",
+          "react-native-contacts",
+          "react-native-device-info",
+          "react-native-email-link",
+          "@dr.pogodin/react-native-fs",
+          "react-native-permissions",
+          "react-native-vector-icons",
+          "react-native-masked-view",
+          "@react-native-community/image-editor",
+        ]
+        platform: [ios, android]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Test ${{ matrix.library }}
+        id: run-test
+        uses: ./.github/actions/test-library-on-nightly
+        with:
+          library-npm-package: ${{ matrix.library }}
+          platform: ${{ matrix.platform}}
+      - name: Save outcome
+        id: save-outcome
+        if: always()
+        run: |
+          LIB_FOLDER=$(echo "${{matrix.library}}"  | tr ' ' '_' | tr '/' '_')
+          echo "${{matrix.library}}: ${{steps.run-test.outcome}}" > "/tmp/$LIB_FOLDER-${{ matrix.platform }}-outcome"
+          echo "lib_folder=$LIB_FOLDER" >> $GITHUB_OUTPUT
+      - name: Upload Artifact
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.save-outcome.outputs.lib_folder }}-${{ matrix.platform }}-outcome
+          path: /tmp/${{ steps.save-outcome.outputs.lib_folder }}-${{ matrix.platform }}-outcome
+
+
+  collect-results:
+    runs-on: ubuntu-latest
+    needs: [test-library-on-nightly]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Restore outcomes
+        uses: actions/download-artifact@v4
+        with:
+          pattern: '*-outcome'
+          path: /tmp
+      - name: Collect failures
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const {collectResults} = require('./.github/workflow-scripts/collectNightlyOutcomes.js');
+            await collectResults('${{secrets.discord_webhook_url}}');

.gitignore

@@ -40,9 +40,10 @@ project.xcworkspace
 /packages/react-native/ReactAndroid/external-artifacts/artifacts/
 /packages/react-native/ReactAndroid/hermes-engine/build/
 /packages/react-native/ReactAndroid/hermes-engine/.cxx/
-/private/helloworld/android/app/build/
-/private/helloworld/android/build/
+/packages/helloworld/android/app/build/
+/packages/helloworld/android/build/
 /packages/react-native-popup-menu-android/android/build/
+/packages/react-native-test-library/android/build/
 
 # Buck
 .buckd
@@ -107,15 +108,15 @@ package-lock.json
 
 # Ruby Gems (Bundler)
 /packages/react-native/vendor
-/private/helloworld/vendor
+/packages/helloworld/vendor
 .ruby-version
 /**/.ruby-version
 vendor/
 
 # iOS / CocoaPods
-/private/helloworld/ios/build/
-/private/helloworld/ios/Pods/
-/private/helloworld/ios/Podfile.lock
+/packages/helloworld/ios/build/
+/packages/helloworld/ios/Pods/
+/packages/helloworld/ios/Podfile.lock
 /packages/rn-tester/bin/
 /packages/rn-tester/cache/
 /packages/rn-tester/extensions/
@@ -138,11 +139,12 @@ vendor/
 /packages/react-native/React/FBReactNativeSpec/
 /packages/react-native-codegen/lib
 /packages/react-native-codegen/tmp/
+/packages/react-native/ReactCommon/react/renderer/components/rncore/
 /packages/rn-tester/NativeModuleExample/ScreenshotManagerSpec*
 /**/RCTThirdPartyFabricComponentsProvider.*
 
 # @react-native/codegen-typescript-test
-/private/react-native-codegen-typescript-test/lib
+/packages/react-native-codegen-typescript-test/lib
 
 # Additional SDKs
 /packages/react-native/sdks/download
@@ -169,12 +171,8 @@ fix_*.patch
 .metro-health-check*
 
 # Jest Integration
-/private/react-native-fantom/build/
-/private/react-native-fantom/.out/
-/private/react-native-fantom/tester/build/
+/packages/react-native-fantom/build/
+/packages/react-native-fantom/tester/build/
 
 # [Experimental] Generated TS type definitions
 /packages/**/types_generated/
-
-/packages/debugger-shell/build/
-/packages/*/dist/

.prettierrc

@@ -0,0 +1,36 @@
+{
+  "arrowParens": "avoid",
+  "bracketSameLine": true,
+  "bracketSpacing": false,
+  "requirePragma": true,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "endOfLine": "lf",
+  "overrides": [
+    {
+      "files": ["*.code-workspace"],
+      "options": {
+        "parser": "json"
+      }
+    },
+    {
+      "files": [
+        "*.js",
+        "*.js.flow"
+      ],
+      "options": {
+        "parser": "hermes"
+      }
+    },
+    {
+      "files": [
+        "**/__docs__/*.md"
+      ],
+      "options": {
+        "parser": "markdown",
+        "proseWrap": "always",
+        "requirePragma": false
+      }
+    }
+  ]
+}

.prettierrc.js

@@ -1,46 +0,0 @@
-/**
- * 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.
- *
- * @format
- */
-
-let plugins = ['prettier-plugin-hermes-parser'];
-try {
-  plugins = require('./.prettier-plugins.fb.js');
-} catch {}
-
-module.exports = {
-  arrowParens: 'avoid',
-  bracketSameLine: true,
-  bracketSpacing: false,
-  requirePragma: true,
-  singleQuote: true,
-  trailingComma: 'all',
-  endOfLine: 'lf',
-  plugins,
-  overrides: [
-    {
-      files: ['*.code-workspace'],
-      options: {
-        parser: 'json',
-      },
-    },
-    {
-      files: ['*.js', '*.js.flow'],
-      options: {
-        parser: 'hermes',
-      },
-    },
-    {
-      files: ['**/__docs__/*.md'],
-      options: {
-        parser: 'markdown',
-        proseWrap: 'always',
-        requirePragma: false,
-      },
-    },
-  ],
-};

__docs__/README.md

@@ -90,7 +90,7 @@ TODO: Explain the different components of React Native at a high level.
     - Jest
     - ESLint
   - Integration / E2E
-    - [Fantom](../private/react-native-fantom/__docs__/README.md)
+    - [Fantom](../packages/react-native-fantom/__docs__/README.md)
 - Tooling
   - React Native DevTools
 

build.gradle.kts

@@ -13,7 +13,6 @@ plugins {
   alias(libs.plugins.kotlin.android) apply false
   alias(libs.plugins.binary.compatibility.validator) apply true
   alias(libs.plugins.android.test) apply false
-  alias(libs.plugins.ktfmt) apply true
 }
 
 val reactAndroidProperties = java.util.Properties()
@@ -26,12 +25,10 @@ fun getListReactAndroidProperty(name: String) = reactAndroidProperties.getProper
 
 apiValidation {
   ignoredPackages.addAll(
-      getListReactAndroidProperty("binaryCompatibilityValidator.ignoredPackages")
-  )
+      getListReactAndroidProperty("binaryCompatibilityValidator.ignoredPackages"))
   ignoredClasses.addAll(getListReactAndroidProperty("binaryCompatibilityValidator.ignoredClasses"))
   nonPublicMarkers.addAll(
-      getListReactAndroidProperty("binaryCompatibilityValidator.nonPublicMarkers")
-  )
+      getListReactAndroidProperty("binaryCompatibilityValidator.nonPublicMarkers"))
   validationDisabled =
       reactAndroidProperties
           .getProperty("binaryCompatibilityValidator.validationDisabled")
@@ -39,9 +36,8 @@ apiValidation {
 }
 
 version =
-    if (
-        project.hasProperty("isSnapshot") && (project.property("isSnapshot") as? String).toBoolean()
-    ) {
+    if (project.hasProperty("isSnapshot") &&
+        (project.property("isSnapshot") as? String).toBoolean()) {
       "${reactAndroidProperties.getProperty("VERSION_NAME")}-SNAPSHOT"
     } else {
       reactAndroidProperties.getProperty("VERSION_NAME")
@@ -59,8 +55,6 @@ nexusPublishing {
     sonatype {
       username.set(sonatypeUsername)
       password.set(sonatypePassword)
-      nexusUrl.set(uri("https://ossrh-staging-api.central.sonatype.com/service/local/"))
-      snapshotRepositoryUrl.set(uri("https://central.sonatype.com/repository/maven-snapshots/"))
     }
   }
 }
@@ -69,10 +63,8 @@ tasks.register("clean", Delete::class.java) {
   description = "Remove all the build files and intermediate build outputs"
   dependsOn(gradle.includedBuild("gradle-plugin").task(":clean"))
   subprojects.forEach {
-    if (
-        it.project.plugins.hasPlugin("com.android.library") ||
-            it.project.plugins.hasPlugin("com.android.application")
-    ) {
+    if (it.project.plugins.hasPlugin("com.android.library") ||
+        it.project.plugins.hasPlugin("com.android.application")) {
       dependsOn(it.tasks.named("clean"))
     }
   }
@@ -82,13 +74,10 @@ tasks.register("clean", Delete::class.java) {
   delete(rootProject.file("./packages/react-native/sdks/download/"))
   delete(rootProject.file("./packages/react-native/sdks/hermes/"))
   delete(
-      rootProject.file("./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/arm64-v8a/")
-  )
+      rootProject.file("./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/arm64-v8a/"))
   delete(
       rootProject.file(
-          "./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/armeabi-v7a/"
-      )
-  )
+          "./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/armeabi-v7a/"))
   delete(rootProject.file("./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/x86/"))
   delete(rootProject.file("./packages/react-native/ReactAndroid/src/main/jni/prebuilt/lib/x86_64/"))
   delete(rootProject.file("./packages/react-native-codegen/lib"))
@@ -106,8 +95,7 @@ tasks.register("publishAllToMavenTempLocal") {
   dependsOn(":packages:react-native:ReactAndroid:publishAllPublicationsToMavenTempLocalRepository")
   // We don't publish the external-artifacts to Maven Local as ci is using it via workspace.
   dependsOn(
-      ":packages:react-native:ReactAndroid:hermes-engine:publishAllPublicationsToMavenTempLocalRepository"
-  )
+      ":packages:react-native:ReactAndroid:hermes-engine:publishAllPublicationsToMavenTempLocalRepository")
 }
 
 tasks.register("publishAndroidToSonatype") {
@@ -129,55 +117,14 @@ if (project.findProperty("react.internal.useHermesNightly")?.toString()?.toBoole
       That's fine for local development, but you should not commit this change.
       ********************************************************************************
   """
-          .trimIndent()
-  )
+          .trimIndent())
   allprojects {
     configurations.all {
       resolutionStrategy.dependencySubstitution {
         substitute(project(":packages:react-native:ReactAndroid:hermes-engine"))
-            .using(module("com.facebook.react:hermes-android:0.+"))
+            .using(module("com.facebook.react:hermes-android:0.0.0-+"))
             .because("Users opted to use hermes from nightly")
       }
     }
   }
 }
-
-ktfmt {
-  blockIndent.set(2)
-  continuationIndent.set(4)
-  maxWidth.set(100)
-  removeUnusedImports.set(false)
-  manageTrailingCommas.set(false)
-}
-
-// Configure ktfmt tasks to include gradle-plugin
-listOf("ktfmtCheck", "ktfmtFormat").forEach { taskName ->
-  tasks.named(taskName) { dependsOn(gradle.includedBuild("gradle-plugin").task(":$taskName")) }
-}
-
-allprojects {
-  // Apply exclusions for specific files that should not be formatted
-  val excludePatterns =
-      listOf(
-          "**/build/**",
-          "**/hermes-engine/**",
-          "**/internal/featureflags/**",
-          "**/systeminfo/ReactNativeVersion.kt",
-      )
-  listOf(
-          com.ncorti.ktfmt.gradle.tasks.KtfmtCheckTask::class,
-          com.ncorti.ktfmt.gradle.tasks.KtfmtFormatTask::class,
-      )
-      .forEach { tasks.withType(it) { exclude(excludePatterns) } }
-
-  // Disable the problematic ktfmt script tasks due to symbolic link issues in subprojects
-  afterEvaluate {
-    listOf("ktfmtCheckScripts", "ktfmtFormatScripts").forEach {
-      tasks.findByName(it)?.enabled = false
-    }
-  }
-}
-
-// We intentionally disable the `ktfmtCheck` tasks as the formatting is primarly handled inside
-// fbsource
-allprojects { tasks.withType<com.ncorti.ktfmt.gradle.tasks.KtfmtCheckTask>() { enabled = false } }

flow-typed/environment/node.js

@@ -4,7 +4,6 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow
  * @format
  */
 
@@ -3229,73 +3228,6 @@ declare module 'util' {
     isWebAssemblyCompiledModule: (value: mixed) => boolean,
     ...
   };
-
-  declare type BackgroundColors =
-    | 'bgBlack'
-    | 'bgBlackBright'
-    | 'bgBlue'
-    | 'bgBlueBright'
-    | 'bgCyan'
-    | 'bgCyanBright'
-    | 'bgGray'
-    | 'bgGreen'
-    | 'bgGreenBright'
-    | 'bgGrey'
-    | 'bgMagenta'
-    | 'bgMagentaBright'
-    | 'bgRed'
-    | 'bgRedBright'
-    | 'bgWhite'
-    | 'bgWhiteBright'
-    | 'bgYellow'
-    | 'bgYellowBright';
-
-  declare type ForegroundColors =
-    | 'black'
-    | 'blackBright'
-    | 'blue'
-    | 'blueBright'
-    | 'cyan'
-    | 'cyanBright'
-    | 'gray'
-    | 'green'
-    | 'greenBright'
-    | 'grey'
-    | 'magenta'
-    | 'magentaBright'
-    | 'red'
-    | 'redBright'
-    | 'white'
-    | 'whiteBright'
-    | 'yellow'
-    | 'yellowBright';
-
-  declare type Modifiers =
-    | 'blink'
-    | 'bold'
-    | 'dim'
-    | 'doubleunderline'
-    | 'framed'
-    | 'hidden'
-    | 'inverse'
-    | 'italic'
-    | 'overlined'
-    | 'reset'
-    | 'strikethrough'
-    | 'underline';
-
-  declare function styleText(
-    format:
-      | ForegroundColors
-      | BackgroundColors
-      | Modifiers
-      | $ReadOnlyArray<ForegroundColors | BackgroundColors | Modifiers>,
-    text: string,
-    options?: $ReadOnly<{
-      stream?: ?stream$Stream,
-      validStream?: ?boolean,
-    }>,
-  ): string;
 }
 
 type vm$ScriptOptions = {

flow-typed/npm/@tsconfig/node18_v1.x.x.js

@@ -8,6 +8,6 @@
  * @format
  */
 
-declare module '@tsconfig/node22/tsconfig.json' {
+declare module '@tsconfig/node18/tsconfig.json' {
   declare module.exports: any;
 }

flow-typed/npm/chalk_v4.x.x.js

@@ -0,0 +1,230 @@
+/**
+ * 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
+ */
+
+// flow-typed signature: 79cfa6bcaa67fdb60f10d320da0470fc
+// flow-typed version: 6cecea2e51/chalk_v4.x.x/flow_>=v0.104.x
+
+// From: https://github.com/chalk/chalk/blob/master/index.d.ts
+
+declare module 'chalk' {
+  declare type ForegroundColor =
+    | 'black'
+    | 'red'
+    | 'green'
+    | 'yellow'
+    | 'blue'
+    | 'magenta'
+    | 'cyan'
+    | 'white'
+    | 'gray'
+    | 'grey'
+    | 'blackBright'
+    | 'redBright'
+    | 'greenBright'
+    | 'yellowBright'
+    | 'blueBright'
+    | 'magentaBright'
+    | 'cyanBright'
+    | 'whiteBright';
+
+  declare type BackgroundColor =
+    | 'bgBlack'
+    | 'bgRed'
+    | 'bgGreen'
+    | 'bgYellow'
+    | 'bgBlue'
+    | 'bgMagenta'
+    | 'bgCyan'
+    | 'bgWhite'
+    | 'bgGray'
+    | 'bgGrey'
+    | 'bgBlackBright'
+    | 'bgRedBright'
+    | 'bgGreenBright'
+    | 'bgYellowBright'
+    | 'bgBlueBright'
+    | 'bgMagentaBright'
+    | 'bgCyanBright'
+    | 'bgWhiteBright';
+
+  declare type Color = ForegroundColor | BackgroundColor;
+
+  declare type Modifiers =
+    | 'reset'
+    | 'bold'
+    | 'dim'
+    | 'italic'
+    | 'underline'
+    | 'inverse'
+    | 'hidden'
+    | 'strikethrough'
+    | 'visible';
+
+  declare type TemplateStringsArray = $ReadOnlyArray<string>;
+
+  declare type Level = $Values<{
+    None: 0,
+    Basic: 1,
+    Ansi256: 2,
+    TrueColor: 3,
+    ...
+  }>;
+
+  declare type ChalkOptions = {|
+    level?: Level,
+  |};
+
+  declare type ColorSupport = {|
+    level: Level,
+    hasBasic: boolean,
+    has256: boolean,
+    has16m: boolean,
+  |};
+
+  declare class Instance implements Chalk {
+    constructor(options?: ChalkOptions): this;
+
+    (...text: string[]): string;
+    (text: TemplateStringsArray, ...placeholders: string[]): string;
+    Instance: typeof Instance;
+    level: Level;
+    rgb(r: number, g: number, b: number): Chalk;
+    hsl(h: number, s: number, l: number): Chalk;
+    hsv(h: number, s: number, v: number): Chalk;
+    hwb(h: number, w: number, b: number): Chalk;
+    bgHex(color: string): Chalk;
+    bgKeyword(color: string): Chalk;
+    bgRgb(r: number, g: number, b: number): Chalk;
+    bgHsl(h: number, s: number, l: number): Chalk;
+    bgHsv(h: number, s: number, v: number): Chalk;
+    bgHwb(h: number, w: number, b: number): Chalk;
+    hex(color: string): Chalk;
+    keyword(color: string): Chalk;
+
+    +reset: Chalk;
+    +bold: Chalk;
+    +dim: Chalk;
+    +italic: Chalk;
+    +underline: Chalk;
+    +inverse: Chalk;
+    +hidden: Chalk;
+    +strikethrough: Chalk;
+
+    +visible: Chalk;
+
+    +black: Chalk;
+    +red: Chalk;
+    +green: Chalk;
+    +yellow: Chalk;
+    +blue: Chalk;
+    +magenta: Chalk;
+    +cyan: Chalk;
+    +white: Chalk;
+    +gray: Chalk;
+    +grey: Chalk;
+    +blackBright: Chalk;
+    +redBright: Chalk;
+    +greenBright: Chalk;
+    +yellowBright: Chalk;
+    +blueBright: Chalk;
+    +magentaBright: Chalk;
+    +cyanBright: Chalk;
+    +whiteBright: Chalk;
+
+    +bgBlack: Chalk;
+    +bgRed: Chalk;
+    +bgGreen: Chalk;
+    +bgYellow: Chalk;
+    +bgBlue: Chalk;
+    +bgMagenta: Chalk;
+    +bgCyan: Chalk;
+    +bgWhite: Chalk;
+    +bgBlackBright: Chalk;
+    +bgRedBright: Chalk;
+    +bgGreenBright: Chalk;
+    +bgYellowBright: Chalk;
+    +bgBlueBright: Chalk;
+    +bgMagentaBright: Chalk;
+    +bgCyanBright: Chalk;
+    +bgWhiteBright: Chalk;
+
+    supportsColor: ColorSupport;
+  }
+
+  declare interface Chalk {
+    (...text: string[]): string;
+    (text: TemplateStringsArray, ...placeholders: string[]): string;
+    Instance: typeof Instance;
+    level: Level;
+    rgb(r: number, g: number, b: number): Chalk;
+    hsl(h: number, s: number, l: number): Chalk;
+    hsv(h: number, s: number, v: number): Chalk;
+    hwb(h: number, w: number, b: number): Chalk;
+    bgHex(color: string): Chalk;
+    bgKeyword(color: string): Chalk;
+    bgRgb(r: number, g: number, b: number): Chalk;
+    bgHsl(h: number, s: number, l: number): Chalk;
+    bgHsv(h: number, s: number, v: number): Chalk;
+    bgHwb(h: number, w: number, b: number): Chalk;
+    hex(color: string): Chalk;
+    keyword(color: string): Chalk;
+
+    +reset: Chalk;
+    +bold: Chalk;
+    +dim: Chalk;
+    +italic: Chalk;
+    +underline: Chalk;
+    +inverse: Chalk;
+    +hidden: Chalk;
+    +strikethrough: Chalk;
+
+    +visible: Chalk;
+
+    +black: Chalk;
+    +red: Chalk;
+    +green: Chalk;
+    +yellow: Chalk;
+    +blue: Chalk;
+    +magenta: Chalk;
+    +cyan: Chalk;
+    +white: Chalk;
+    +gray: Chalk;
+    +grey: Chalk;
+    +blackBright: Chalk;
+    +redBright: Chalk;
+    +greenBright: Chalk;
+    +yellowBright: Chalk;
+    +blueBright: Chalk;
+    +magentaBright: Chalk;
+    +cyanBright: Chalk;
+    +whiteBright: Chalk;
+
+    +bgBlack: Chalk;
+    +bgRed: Chalk;
+    +bgGreen: Chalk;
+    +bgYellow: Chalk;
+    +bgBlue: Chalk;
+    +bgMagenta: Chalk;
+    +bgCyan: Chalk;
+    +bgWhite: Chalk;
+    +bgBlackBright: Chalk;
+    +bgRedBright: Chalk;
+    +bgGreenBright: Chalk;
+    +bgYellowBright: Chalk;
+    +bgBlueBright: Chalk;
+    +bgMagentaBright: Chalk;
+    +bgCyanBright: Chalk;
+    +bgWhiteBright: Chalk;
+
+    supportsColor: ColorSupport;
+  }
+
+  declare module.exports: Chalk;
+}

flow-typed/npm/cross-spawn_v7.x.x.js

@@ -1,20 +0,0 @@
-/**
- * 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 strict
- * @format
- */
-
-declare module 'cross-spawn' {
-  import * as child_process from 'child_process';
-
-  type spawn = typeof child_process.spawn & {
-    spawn: spawn,
-    sync: typeof child_process.spawnSync,
-  };
-
-  declare module.exports: spawn;
-}

flow-typed/npm/electron-packager_v18.x.x.js

@@ -1,149 +0,0 @@
-/**
- * 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 strict-local
- * @format
- */
-
-declare module '@electron/packager' {
-  declare export type AsarOptions = $FlowFixMe;
-
-  declare export type ElectronDownloadRequestOptions = $FlowFixMe;
-
-  declare export type TargetDefinition = {
-    arch: TargetArch,
-    platform: TargetPlatform,
-  };
-
-  declare export type FinalizePackageTargetsHookFunction = (
-    targets: TargetDefinition[],
-    callback: HookFunctionErrorCallback,
-  ) => void;
-
-  declare export type HookFunction = (
-    buildPath: string,
-    electronVersion: string,
-    platform: TargetPlatform,
-    arch: TargetArch,
-    callback: HookFunctionErrorCallback,
-  ) => void;
-
-  declare export type IgnoreFunction = (path: string) => boolean;
-
-  declare export type HookFunctionErrorCallback = (err?: Error | null) => void;
-
-  declare export interface MacOSProtocol {
-    name: string;
-    schemes: string[];
-  }
-
-  declare export type NotaryToolCredentials = $FlowFixMe;
-
-  declare export type OsxSignOptions = $FlowFixMe;
-
-  declare export type OsxUniversalOptions = $FlowFixMe;
-
-  declare export type Win32MetadataOptions = $ReadOnly<{
-    CompanyName?: string,
-    FileDescription?: string,
-    OriginalFilename?: string,
-    ProductName?: string,
-    InternalName?: string,
-    'requested-execution-level'?:
-      | 'asInvoker'
-      | 'highestAvailable'
-      | 'requireAdministrator',
-    'application-manifest'?: string,
-  }>;
-
-  declare export type WindowsSignOptions = $FlowFixMe;
-
-  declare export type OfficialArch =
-    | 'ia32'
-    | 'x64'
-    | 'armv7l'
-    | 'arm64'
-    | 'mips64el'
-    | 'universal';
-
-  declare export type OfficialPlatform = 'linux' | 'win32' | 'darwin' | 'mas';
-
-  declare export type TargetArch = OfficialArch | string;
-
-  declare export type TargetPlatform = OfficialPlatform | string;
-
-  declare export type ArchOption = TargetArch | 'all';
-
-  declare export type PlatformOption = TargetPlatform | 'all';
-
-  declare export interface Options {
-    dir: string;
-    afterAsar?: HookFunction[];
-    afterComplete?: HookFunction[];
-    afterCopy?: HookFunction[];
-    afterCopyExtraResources?: HookFunction[];
-    afterExtract?: HookFunction[];
-    afterFinalizePackageTargets?: FinalizePackageTargetsHookFunction[];
-    afterInitialize?: HookFunction[];
-    afterPrune?: HookFunction[];
-    all?: boolean;
-    appBundleId?: string;
-    appCategoryType?: string;
-    appCopyright?: string;
-    appVersion?: string;
-    arch?: ArchOption | ArchOption[];
-    asar?: boolean | AsarOptions;
-    beforeAsar?: HookFunction[];
-    beforeCopy?: HookFunction[];
-    beforeCopyExtraResources?: HookFunction[];
-    buildVersion?: string;
-    darwinDarkModeSupport?: boolean;
-    derefSymlinks?: boolean;
-    download?: ElectronDownloadRequestOptions;
-    electronVersion?: string;
-    electronZipDir?: string;
-    executableName?: string;
-    extendHelperInfo?:
-      | string
-      | {
-          [property: string]: any,
-        };
-    extendInfo?:
-      | string
-      | {
-          [property: string]: any,
-        };
-    extraResource?: string | string[];
-    helperBundleId?: string;
-    icon?: string;
-    ignore?: RegExp | (string | RegExp)[] | IgnoreFunction;
-    junk?: boolean;
-    name?: string;
-    osxNotarize?: NotaryToolCredentials;
-    osxSign?: true | OsxSignOptions;
-    osxUniversal?: OsxUniversalOptions;
-    out?: string;
-    overwrite?: boolean;
-    platform?: TargetPlatform | 'all' | Array<TargetPlatform | 'all'>;
-    prebuiltAsar?: string;
-    protocols?: MacOSProtocol[];
-    prune?: boolean;
-    quiet?: boolean;
-    tmpdir?: string | false;
-    usageDescription?: {
-      [property: string]: string,
-    };
-    win32metadata?: Win32MetadataOptions;
-    windowsSign?: true | WindowsSignOptions;
-  }
-
-  declare function packager(options: Options): Promise<string[]>;
-
-  declare module.exports: typeof packager & {
-    packager: typeof packager,
-    default: typeof packager,
-  };
-}

flow-typed/npm/electron_v36.x.x.js

@@ -1,14 +0,0 @@
-/**
- * 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 strict-local
- * @format
- */
-
-// Types for Electron when required as a Node package.
-declare module 'electron' {
-  declare module.exports: string;
-}

flow-typed/npm/jest.js

@@ -4,7 +4,6 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow
  * @format
  */
 
@@ -854,10 +853,6 @@ type JestObjectType = {
    * Returns the number of fake timers still left to run.
    */
   getTimerCount(): number,
-  /**
-   * Returns the time in ms of the current clock.
-   */
-  now(): number,
   /**
    * Set the current system time used by fake timers.
    * Simulates a user changing the system clock while your program is running.

flow-typed/npm/tinybench_v3.1.x.js

@@ -91,19 +91,7 @@ declare module 'tinybench' {
     beforeEach?: (this: Task) => void | Promise<void>,
   };
 
-  // This is defined as an interface in tinybench but we define it as an object
-  // to catch problems like `overriddenDuration` being misspelled.
-  export type FnReturnedObject = {
-    overriddenDuration?: number,
-  };
-
-  // This type is defined as returning `unknown` instead of `void` in tinybench,
-  // but we type it this way to avoid mistakes (we can make breaking changes
-  // in our definition that they can't).
-  export type Fn = () =>
-    | Promise<void | FnReturnedObject>
-    | void
-    | FnReturnedObject;
+  export type Fn = () => Promise<mixed> | mixed;
 
   declare export class Bench extends EventTarget {
     concurrency: null | 'task' | 'bench';

flow-typed/npm/typescript_v5.x.x.js

@@ -48,11 +48,6 @@ declare module 'typescript' {
       file: SourceFile,
       start?: number,
     ): $ReadOnly<{line: number, character: number}>,
-    convertCompilerOptionsFromJson(
-      jsonOptions: any,
-      basePath: string,
-      configFileName?: string,
-    ): {options: Object, errors: Diagnostic[]},
     ModuleResolutionKind: typeof ModuleResolutionKind,
     ...
   };

flow-typed/npm/ws_v7.x.x.js

@@ -21,7 +21,7 @@ declare type ws$PerMessageDeflateOptions = {
   maxPayload?: number,
 };
 
-/* $FlowFixMe[incompatible-type] - Found with Flow v0.143.1 upgrade
+/* $FlowFixMe[incompatible-extend] - Found with Flow v0.143.1 upgrade
  * "on" definition failing with string is incompatible with string literal */
 declare class ws$WebSocketServer extends events$EventEmitter {
   /**
@@ -141,7 +141,7 @@ declare type ws$UnexpectedResponseListener = (
 ) => mixed;
 declare type ws$UpgradeListener = (response: http$IncomingMessage<>) => mixed;
 
-/* $FlowFixMe[incompatible-type] - Found with Flow v0.143.1 upgrade
+/* $FlowFixMe[incompatible-extend] - Found with Flow v0.143.1 upgrade
  * "on" definition failing with string is incompatible with string literal */
 declare class ws$WebSocket extends events$EventEmitter {
   static Server: typeof ws$WebSocketServer;

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015 the original authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

jest.config.js

@@ -4,19 +4,16 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow strict
  * @format
  */
 
 'use strict';
 
-// $FlowFixMe[cannot-resolve-module]
-// $FlowFixMe[untyped-import]
 const {defaults} = require('jest-config');
 
 const PODS_LOCATIONS = [
   'packages/rn-tester/Pods',
-  'private/helloworld/ios/Pods',
+  'packages/helloworld/ios/Pods',
 ];
 
 module.exports = {
@@ -42,21 +39,18 @@ module.exports = {
     '<rootDir>/packages/react-native/Libraries/Renderer',
     '<rootDir>/packages/react-native/sdks/hermes/',
     ...PODS_LOCATIONS,
-  ] /*:: as $ReadOnlyArray<string> */,
+  ],
   transformIgnorePatterns: ['node_modules/(?!@react-native/)'],
   haste: {
     defaultPlatform: 'ios',
     platforms: ['ios', 'android'],
   },
-  moduleFileExtensions: [
-    'fb.js',
-    ...defaults.moduleFileExtensions,
-  ] /*:: as $ReadOnlyArray<string> */,
+  moduleFileExtensions: ['fb.js'].concat(defaults.moduleFileExtensions),
   modulePathIgnorePatterns: [
     'scripts/.*/__fixtures__/',
     '<rootDir>/packages/react-native/sdks/hermes/',
     ...PODS_LOCATIONS,
-  ] /*:: as $ReadOnlyArray<string> */,
+  ],
   unmockedModulePathPatterns: [
     'node_modules/react/',
     'packages/react-native/Libraries/Renderer',

jest/preprocessor.js

@@ -12,7 +12,7 @@
 
 'use strict';
 
-// eslint-disable-next-line @react-native/monorepo/sort-imports
+// eslint-disable-next-line lint/sort-imports
 const {
   transformFromAstSync: babelTransformFromAstSync,
   transformSync: babelTransformSync,
@@ -32,7 +32,7 @@ if (process.env.FBSOURCE_ENV === '1') {
   require('@fb-tools/babel-register');
 } else {
   // Register Babel to allow local packages to be loaded from source
-  require('../scripts/shared/babelRegister').registerForMonorepo();
+  require('../scripts/babel-register').registerForMonorepo();
 }
 
 const transformer = require('@react-native/metro-babel-transformer');
@@ -59,9 +59,6 @@ const babelPluginPreventBabelRegister = [
 
 module.exports = {
   process(src /*: string */, file /*: string */) /*: {code: string, ...} */ {
-    if (file.endsWith('.json')) {
-      return {code: src};
-    }
     if (nodeFiles.test(file)) {
       // node specific transforms only
       return babelTransformSync(src, {
@@ -86,7 +83,7 @@ module.exports = {
         globalPrefix: '',
         hermesParser: true,
         hot: false,
-        // $FlowFixMe[incompatible-type] TODO: Remove when `inlineRequires` has been removed from metro-babel-transformer in OSS
+        // $FlowFixMe[incompatible-call] TODO: Remove when `inlineRequires` has been removed from metro-babel-transformer in OSS
         inlineRequires: true,
         minify: false,
         platform: '',
@@ -111,7 +108,7 @@ module.exports = {
 
     return generate(
       ast,
-      // $FlowFixMe[incompatible-type] Error found when improving flow typing for libs
+      // $FlowFixMe[prop-missing] Error found when improving flow typing for libs
       {
         code: true,
         comments: false,

package.json

@@ -8,21 +8,18 @@
     "android": "yarn --cwd packages/rn-tester android",
     "build-android": "./gradlew :packages:react-native:ReactAndroid:build",
     "build": "node ./scripts/build/build.js",
-    "build-types": "node ./scripts/js-api/build-types",
+    "build-types": "node ./scripts/build-types",
     "clang-format": "clang-format -i --glob=*/**/*.{h,cpp,m,mm}",
     "clean": "node ./scripts/build/clean.js",
-    "cxx-api-build": "node ./scripts/cxx-api/public-api.js",
     "flow-check": "flow check",
     "flow": "flow",
     "format-check": "prettier --list-different \"./**/*.{js,md,yml,ts,tsx}\"",
     "format": "npm run prettier && npm run clang-format",
     "featureflags": "yarn --cwd packages/react-native featureflags",
-    "js-api-diff": "node ./scripts/js-api/diff-api-snapshot",
     "lint-ci": "./.github/workflow-scripts/analyze_code.sh && yarn shellcheck",
-    "lint-kotlin-check": "./gradlew ktfmtCheck",
-    "lint-kotlin": "./gradlew ktfmtFormat",
+    "lint-java": "node ./scripts/lint-java.js",
     "lint-markdown": "markdownlint-cli2 2>&1",
-    "lint": "eslint --max-warnings 0 .",
+    "lint": "eslint .",
     "prettier": "prettier --write \"./**/*.{js,md,yml,ts,tsx}\"",
     "print-packages": "node ./scripts/monorepo/print",
     "shellcheck": "./.github/workflow-scripts/analyze_scripts.sh",
@@ -30,20 +27,19 @@
     "set-version": "node ./scripts/releases/set-version.js",
     "test-android": "./gradlew :packages:react-native:ReactAndroid:test",
     "test-ci": "jest --maxWorkers=2 --ci --reporters=\"default\" --reporters=\"jest-junit\"",
-    "test-release-local-clean": "node ./scripts/release-testing/test-release-local-clean.js",
-    "test-release-local": "node ./scripts/release-testing/test-release-local.js",
+    "test-e2e-local-clean": "node ./scripts/release-testing/test-e2e-local-clean.js",
+    "test-e2e-local": "node ./scripts/release-testing/test-e2e-local.js",
     "test-ios": "./scripts/objc-test.sh test",
     "test-typescript": "tsc -p packages/react-native/types/tsconfig.json",
-    "test-generated-typescript": "tsc -p packages/react-native/types_generated/tsconfig.test.json",
     "test": "jest",
-    "fantom": "./scripts/fantom.sh",
+    "fantom": "JS_DIR='..' yarn jest --config packages/react-native-fantom/config/jest.config.js",
     "trigger-react-native-release": "node ./scripts/releases-local/trigger-react-native-release.js",
     "update-lock": "npx yarn-deduplicate"
   },
   "workspaces": [
     "packages/*",
-    "private/*",
-    "!private/helloworld"
+    "tools/*",
+    "!packages/helloworld"
   ],
   "devDependencies": {
     "@babel/core": "^7.25.2",
@@ -53,19 +49,18 @@
     "@babel/plugin-transform-regenerator": "^7.24.7",
     "@babel/preset-env": "^7.25.3",
     "@babel/preset-flow": "^7.24.7",
-    "@electron/packager": "^18.3.6",
     "@jest/create-cache-key-function": "^29.7.0",
-    "@microsoft/api-extractor": "^7.52.2",
-    "@react-native/metro-babel-transformer": "0.82.0-main",
-    "@react-native/metro-config": "0.82.0-main",
-    "@tsconfig/node22": "22.0.2",
-    "@types/react": "^19.1.0",
-    "@typescript-eslint/parser": "^8.36.0",
+    "@react-native/metro-babel-transformer": "0.80.0-main",
+    "@react-native/metro-config": "0.80.0-main",
+    "@tsconfig/node18": "1.0.1",
+    "@types/react": "^19.0.0",
+    "@typescript-eslint/parser": "^7.1.1",
     "ansi-styles": "^4.2.1",
     "babel-plugin-minify-dead-code-elimination": "^0.5.2",
-    "babel-plugin-syntax-hermes-parser": "0.32.0",
+    "babel-plugin-syntax-hermes-parser": "0.28.1",
     "babel-plugin-transform-define": "^2.1.4",
     "babel-plugin-transform-flow-enums": "^0.0.2",
+    "chalk": "^4.0.0",
     "clang-format": "^1.8.0",
     "connect": "^3.6.5",
     "debug": "^4.4.0",
@@ -75,49 +70,46 @@
     "eslint-plugin-babel": "^5.3.1",
     "eslint-plugin-eslint-comments": "^3.2.0",
     "eslint-plugin-ft-flow": "^2.0.1",
-    "eslint-plugin-jest": "^29.0.1",
+    "eslint-plugin-jest": "^27.9.0",
     "eslint-plugin-jsx-a11y": "^6.6.0",
+    "eslint-plugin-lint": "^1.0.0",
     "eslint-plugin-react": "^7.30.1",
+    "eslint-plugin-react-hooks": "^5.2.0",
     "eslint-plugin-react-native": "^4.0.0",
     "eslint-plugin-redundant-undefined": "^0.4.0",
     "eslint-plugin-relay": "^1.8.3",
-    "flow-api-translator": "0.32.0",
-    "flow-bin": "^0.280.0",
+    "flow-api-translator": "0.28.1",
+    "flow-bin": "^0.272.1",
     "glob": "^7.1.1",
-    "hermes-eslint": "0.32.0",
-    "hermes-transform": "0.32.0",
-    "ini": "^5.0.0",
+    "hermes-eslint": "0.28.1",
+    "hermes-transform": "0.28.1",
     "inquirer": "^7.1.0",
     "jest": "^29.7.0",
     "jest-config": "^29.7.0",
     "jest-diff": "^29.7.0",
-    "jest-junit": "^16.0.0",
+    "jest-junit": "^10.0.0",
     "jest-snapshot": "^29.7.0",
     "markdownlint-cli2": "^0.17.2",
     "markdownlint-rule-relative-links": "^3.0.0",
-    "memfs": "^4.7.7",
-    "metro-babel-register": "^0.83.1",
-    "metro-transform-plugins": "^0.83.1",
+    "metro-babel-register": "^0.82.4",
+    "metro-memory-fs": "^0.82.4",
+    "metro-transform-plugins": "^0.82.4",
     "micromatch": "^4.0.4",
     "node-fetch": "^2.2.0",
     "nullthrows": "^1.1.1",
-    "prettier": "3.6.2",
-    "prettier-plugin-hermes-parser": "0.32.0",
-    "react": "19.1.1",
-    "react-test-renderer": "19.1.1",
+    "prettier": "2.8.8",
+    "prettier-plugin-hermes-parser": "0.28.1",
+    "react": "19.1.0",
+    "react-test-renderer": "19.1.0",
     "rimraf": "^3.0.2",
     "shelljs": "^0.8.5",
     "signedsource": "^1.0.0",
     "supports-color": "^7.1.0",
-    "temp-dir": "^2.0.0",
-    "tinybench": "^4.1.0",
-    "typescript": "5.8.3",
+    "tinybench": "^3.1.0",
+    "typescript": "5.0.4",
     "ws": "^6.2.3"
   },
   "resolutions": {
-    "eslint-plugin-react-hooks": "6.1.0-canary-12bc60f5-20250613",
-    "react-is": "19.1.1",
-    "on-headers": "1.1.0",
-    "compression": "1.8.1"
+    "react-is": "19.1.0"
   }
 }

packages/assets/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@react-native/assets-registry",
-  "version": "0.82.0-main",
+  "version": "0.80.0-main",
   "description": "Asset support code for React Native.",
   "license": "MIT",
   "repository": {
@@ -17,7 +17,7 @@
   ],
   "bugs": "https://github.com/facebook/react-native/issues",
   "engines": {
-    "node": ">= 20.19.4"
+    "node": ">=18"
   },
   "files": [
     "path-support.js",

packages/assets/registry.js

@@ -40,5 +40,5 @@ function getAssetByID(assetId /*: number */) /*: PackagerAsset */ {
   return assets[assetId - 1];
 }
 
-// eslint-disable-next-line @react-native/monorepo/no-commonjs-exports
+// eslint-disable-next-line lint/no-commonjs-exports
 module.exports = {registerAsset, getAssetByID};

packages/babel-plugin-codegen/__test_fixtures__/failures.js

@@ -81,147 +81,10 @@ export {Commands};
 export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
 `;
 
-const COMMANDS_WITH_COVERAGE_INVALID = `
-// @flow
-
-const codegenNativeComponent = require('codegenNativeComponent');
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-import type {ViewProps} from 'ViewPropTypes';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-// Coverage instrumentation of invalid Commands export - should still fail
-export const Commands = (cov_1234567890().s[0]++, {
-  hotspotUpdate: () => {},
-  scrollTo: () => {},
-});
-
-export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
-`;
-
-const COMMANDS_WITH_COVERAGE_WRONG_FUNCTION = `
-// @flow
-
-const codegenNativeComponent = require('codegenNativeComponent');
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-import type {ViewProps} from 'ViewPropTypes';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-// Coverage instrumentation of wrong function call - should fail
-export const Commands = (cov_abcdef123().s[0]++, someOtherFunction({
-  supportedCommands: ['pause', 'play'],
-}));
-
-export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
-`;
-
-const COMMANDS_WITH_COMPLEX_COVERAGE_INVALID = `
-// @flow
-
-const codegenNativeComponent = require('codegenNativeComponent');
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-import type {ViewProps} from 'ViewPropTypes';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-// Complex coverage instrumentation with invalid nested structure - should fail
-export const Commands = (
-  cov_xyz789().f[1]++,
-  cov_xyz789().s[2]++,
-  {
-    pause: (ref) => {},
-    play: (ref) => {},
-  }
-);
-
-export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
-`;
-
-const COMMANDS_WITH_COVERAGE_WRONG_NAME = `
-// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-import type {ViewProps} from 'ViewPropTypes';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-interface NativeCommands {
-  +pause: (viewRef: React.ElementRef<NativeType>) => void;
-  +play: (viewRef: React.ElementRef<NativeType>) => void;
-}
-
-// Coverage instrumentation with correct function but wrong export name - should fail
-export const WrongName = (cov_wrong123().s[0]++, codegenNativeCommands<NativeCommands>({
-  supportedCommands: ['pause', 'play'],
-}));
-
-export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
-`;
-
-const COMMANDS_WITH_COVERAGE_TYPE_CAST_INVALID = `
-// @flow
-
-const codegenNativeComponent = require('codegenNativeComponent');
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-import type {ViewProps} from 'ViewPropTypes';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-interface NativeCommands {
-  +pause: (viewRef: React.ElementRef<NativeType>) => void;
-  +play: (viewRef: React.ElementRef<NativeType>) => void;
-}
-
-// Coverage instrumentation with type cast but wrong function - should fail
-export const Commands: NativeCommands = (cov_cast123().s[0]++, invalidFunction({
-  supportedCommands: ['pause', 'play'],
-}));
-
-export default (codegenNativeComponent<ModuleProps>('Module'): NativeType);
-`;
-
 module.exports = {
   'CommandsExportedWithDifferentNameNativeComponent.js':
     COMMANDS_EXPORTED_WITH_DIFFERENT_NAME,
   'CommandsExportedWithShorthandNativeComponent.js':
     COMMANDS_EXPORTED_WITH_SHORTHAND,
   'OtherCommandsExportNativeComponent.js': OTHER_COMMANDS_EXPORT,
-  'CommandsWithCoverageInvalidNativeComponent.js':
-    COMMANDS_WITH_COVERAGE_INVALID,
-  'CommandsWithCoverageWrongFunctionNativeComponent.js':
-    COMMANDS_WITH_COVERAGE_WRONG_FUNCTION,
-  'CommandsWithComplexCoverageInvalidNativeComponent.js':
-    COMMANDS_WITH_COMPLEX_COVERAGE_INVALID,
-  'CommandsWithCoverageWrongNameNativeComponent.js':
-    COMMANDS_WITH_COVERAGE_WRONG_NAME,
-  'CommandsWithCoverageTypeCastInvalidNativeComponent.js':
-    COMMANDS_WITH_COVERAGE_TYPE_CAST_INVALID,
 };

packages/babel-plugin-codegen/__test_fixtures__/fixtures.js

@@ -59,92 +59,6 @@ export default codegenNativeComponent<ModuleProps>('Module', {
 });
 `;
 
-// Coverage instrumentation test cases - should be recognized as valid
-const COMMANDS_WITH_SIMPLE_COVERAGE = `
-// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-
-import type {ViewProps} from 'ViewPropTypes';
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-interface NativeCommands {
-  +pause: (viewRef: React.ElementRef<NativeType>) => void;
-  +play: (viewRef: React.ElementRef<NativeType>) => void;
-}
-
-export const Commands = (cov_1234567890.s[0]++, codegenNativeCommands<NativeCommands>({
-  supportedCommands: ['pause', 'play'],
-}));
-
-export default codegenNativeComponent<ModuleProps>('Module');
-`;
-
-const COMMANDS_WITH_COMPLEX_COVERAGE = `
-// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-
-import type {ViewProps} from 'ViewPropTypes';
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-interface NativeCommands {
-  +seek: (viewRef: React.ElementRef<NativeType>, position: number) => void;
-  +stop: (viewRef: React.ElementRef<NativeType>) => void;
-}
-
-export const Commands = (
-  cov_abcdef123().f[2]++,
-  cov_abcdef123().s[5]++,
-  codegenNativeCommands<NativeCommands>({
-    supportedCommands: ['seek', 'stop'],
-  })
-);
-
-export default codegenNativeComponent<ModuleProps>('Module');
-`;
-
-const COMMANDS_WITH_TYPE_CAST_COVERAGE = `
-// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-
-import type {ViewProps} from 'ViewPropTypes';
-import type {NativeComponentType} from 'codegenNativeComponent';
-
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps,
-|}>;
-
-type NativeType = NativeComponentType<ModuleProps>;
-
-interface NativeCommands {
-  +mute: (viewRef: React.ElementRef<NativeType>) => void;
-  +unmute: (viewRef: React.ElementRef<NativeType>) => void;
-}
-
-export const Commands: NativeCommands = (cov_xyz789().s[1]++, codegenNativeCommands<NativeCommands>({
-  supportedCommands: ['mute', 'unmute'],
-}));
-
-export default codegenNativeComponent<ModuleProps>('Module');
-`;
-
 const FULL_NATIVE_COMPONENT_WITH_TYPE_EXPORT = `
 // @flow
 
@@ -193,9 +107,4 @@ module.exports = {
   'NotANativeComponent.js': NOT_A_NATIVE_COMPONENT,
   'FullNativeComponent.js': FULL_NATIVE_COMPONENT,
   'FullTypedNativeComponent.js': FULL_NATIVE_COMPONENT_WITH_TYPE_EXPORT,
-  'CommandsWithSimpleCoverageNativeComponent.js': COMMANDS_WITH_SIMPLE_COVERAGE,
-  'CommandsWithComplexCoverageNativeComponent.js':
-    COMMANDS_WITH_COMPLEX_COVERAGE,
-  'CommandsWithTypeCastCoverageNativeComponent.js':
-    COMMANDS_WITH_TYPE_CAST_COVERAGE,
 };

packages/babel-plugin-codegen/__tests__/__snapshots__/index-test.js.snap

@@ -1,77 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Babel plugin inline view configs can inline config for CommandsWithComplexCoverageNativeComponent.js 1`] = `
-"// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-import type { ViewProps } from 'ViewPropTypes';
-import type { NativeComponentType } from 'codegenNativeComponent';
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps
-|}>;
-type NativeType = NativeComponentType<ModuleProps>;
-interface NativeCommands {
-  +seek: (viewRef: React.ElementRef<NativeType>, position: number) => void,
-  +stop: (viewRef: React.ElementRef<NativeType>) => void,
-}
-const NativeComponentRegistry = require('react-native/Libraries/NativeComponent/NativeComponentRegistry');
-let nativeComponentName = 'Module';
-export const __INTERNAL_VIEW_CONFIG = {
-  uiViewClassName: \\"Module\\",
-  validAttributes: {}
-};
-export default NativeComponentRegistry.get(nativeComponentName, () => __INTERNAL_VIEW_CONFIG);"
-`;
-
-exports[`Babel plugin inline view configs can inline config for CommandsWithSimpleCoverageNativeComponent.js 1`] = `
-"// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-import type { ViewProps } from 'ViewPropTypes';
-import type { NativeComponentType } from 'codegenNativeComponent';
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps
-|}>;
-type NativeType = NativeComponentType<ModuleProps>;
-interface NativeCommands {
-  +pause: (viewRef: React.ElementRef<NativeType>) => void,
-  +play: (viewRef: React.ElementRef<NativeType>) => void,
-}
-const NativeComponentRegistry = require('react-native/Libraries/NativeComponent/NativeComponentRegistry');
-let nativeComponentName = 'Module';
-export const __INTERNAL_VIEW_CONFIG = {
-  uiViewClassName: \\"Module\\",
-  validAttributes: {}
-};
-export default NativeComponentRegistry.get(nativeComponentName, () => __INTERNAL_VIEW_CONFIG);"
-`;
-
-exports[`Babel plugin inline view configs can inline config for CommandsWithTypeCastCoverageNativeComponent.js 1`] = `
-"// @flow
-
-const codegenNativeCommands = require('codegenNativeCommands');
-const codegenNativeComponent = require('codegenNativeComponent');
-import type { ViewProps } from 'ViewPropTypes';
-import type { NativeComponentType } from 'codegenNativeComponent';
-type ModuleProps = $ReadOnly<{|
-  ...ViewProps
-|}>;
-type NativeType = NativeComponentType<ModuleProps>;
-interface NativeCommands {
-  +mute: (viewRef: React.ElementRef<NativeType>) => void,
-  +unmute: (viewRef: React.ElementRef<NativeType>) => void,
-}
-const NativeComponentRegistry = require('react-native/Libraries/NativeComponent/NativeComponentRegistry');
-let nativeComponentName = 'Module';
-export const __INTERNAL_VIEW_CONFIG = {
-  uiViewClassName: \\"Module\\",
-  validAttributes: {}
-};
-export default NativeComponentRegistry.get(nativeComponentName, () => __INTERNAL_VIEW_CONFIG);"
-`;
-
 exports[`Babel plugin inline view configs can inline config for FullNativeComponent.js 1`] = `
 "// @flow
 
@@ -225,61 +153,6 @@ exports[`Babel plugin inline view configs fails on inline config for CommandsExp
   24 |"
 `;
 
-exports[`Babel plugin inline view configs fails on inline config for CommandsWithComplexCoverageInvalidNativeComponent.js 1`] = `
-"/CommandsWithComplexCoverageInvalidNativeComponent.js: 'Commands' is a reserved export and may only be used to export the result of codegenNativeCommands.
-  14 |
-  15 | // Complex coverage instrumentation with invalid nested structure - should fail
-> 16 | export const Commands = (
-     | ^
-  17 |   cov_xyz789().f[1]++,
-  18 |   cov_xyz789().s[2]++,
-  19 |   {"
-`;
-
-exports[`Babel plugin inline view configs fails on inline config for CommandsWithCoverageInvalidNativeComponent.js 1`] = `
-"/CommandsWithCoverageInvalidNativeComponent.js: 'Commands' is a reserved export and may only be used to export the result of codegenNativeCommands.
-  14 |
-  15 | // Coverage instrumentation of invalid Commands export - should still fail
-> 16 | export const Commands = (cov_1234567890().s[0]++, {
-     | ^
-  17 |   hotspotUpdate: () => {},
-  18 |   scrollTo: () => {},
-  19 | });"
-`;
-
-exports[`Babel plugin inline view configs fails on inline config for CommandsWithCoverageTypeCastInvalidNativeComponent.js 1`] = `
-"/CommandsWithCoverageTypeCastInvalidNativeComponent.js: 'Commands' is a reserved export and may only be used to export the result of codegenNativeCommands.
-  19 |
-  20 | // Coverage instrumentation with type cast but wrong function - should fail
-> 21 | export const Commands: NativeCommands = (cov_cast123().s[0]++, invalidFunction({
-     | ^
-  22 |   supportedCommands: ['pause', 'play'],
-  23 | }));
-  24 |"
-`;
-
-exports[`Babel plugin inline view configs fails on inline config for CommandsWithCoverageWrongFunctionNativeComponent.js 1`] = `
-"/CommandsWithCoverageWrongFunctionNativeComponent.js: 'Commands' is a reserved export and may only be used to export the result of codegenNativeCommands.
-  14 |
-  15 | // Coverage instrumentation of wrong function call - should fail
-> 16 | export const Commands = (cov_abcdef123().s[0]++, someOtherFunction({
-     | ^
-  17 |   supportedCommands: ['pause', 'play'],
-  18 | }));
-  19 |"
-`;
-
-exports[`Babel plugin inline view configs fails on inline config for CommandsWithCoverageWrongNameNativeComponent.js 1`] = `
-"/CommandsWithCoverageWrongNameNativeComponent.js: Native commands must be exported with the name 'Commands'
-  20 |
-  21 | // Coverage instrumentation with correct function but wrong export name - should fail
-> 22 | export const WrongName = (cov_wrong123().s[0]++, codegenNativeCommands<NativeCommands>({
-     | ^
-  23 |   supportedCommands: ['pause', 'play'],
-  24 | }));
-  25 |"
-`;
-
 exports[`Babel plugin inline view configs fails on inline config for OtherCommandsExportNativeComponent.js 1`] = `
 "/OtherCommandsExportNativeComponent.js: 'Commands' is a reserved export and may only be used to export the result of codegenNativeCommands.
   17 | }

packages/babel-plugin-codegen/__tests__/index-test.js

@@ -4,27 +4,23 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow strict-local
  * @format
  */
 
-import failures from '../__test_fixtures__/failures.js';
-import fixtures from '../__test_fixtures__/fixtures.js';
-import {transformSync} from '@babel/core';
+'use strict';
 
-const transform = (fixture /*: string */, filename /*: string */) =>
-  transformSync(fixture, {
+const failures = require('../__test_fixtures__/failures.js');
+const fixtures = require('../__test_fixtures__/fixtures.js');
+const {transform: babelTransform} = require('@babel/core');
+
+const transform = (fixture, filename) =>
+  babelTransform(fixture, {
     babelrc: false,
     browserslistConfigFile: false,
     cwd: '/',
-    filename,
+    filename: filename,
     highlightCode: false,
-    plugins: [
-      // $FlowFixMe[untyped-import]
-      require('@babel/plugin-syntax-flow'),
-      // $FlowFixMe[untyped-import]
-      require('../index'),
-    ],
+    plugins: [require('@babel/plugin-syntax-flow'), require('../index')],
   }).code;
 
 describe('Babel plugin inline view configs', () => {

packages/babel-plugin-codegen/index.js

@@ -4,7 +4,6 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @noflow
  * @format
  */
 
@@ -24,19 +23,16 @@ try {
 } catch (e) {
   // Fallback to lib when source doesn't exit (e.g. when installed as a dev dependency)
   FlowParser =
-    // $FlowFixMe[cannot-resolve-module]
     require('@react-native/codegen/lib/parsers/flow/parser').FlowParser;
   TypeScriptParser =
-    // $FlowFixMe[cannot-resolve-module]
     require('@react-native/codegen/lib/parsers/typescript/parser').TypeScriptParser;
-  // $FlowFixMe[cannot-resolve-module]
   RNCodegen = require('@react-native/codegen/lib/generators/RNCodegen');
 }
 
 const flowParser = new FlowParser();
 const typeScriptParser = new TypeScriptParser();
 
-function parseFile(filename /*: string */, code /*: string */) {
+function parseFile(filename, code) {
   if (filename.endsWith('js')) {
     return flowParser.parseString(code);
   }
@@ -50,7 +46,7 @@ function parseFile(filename /*: string */, code /*: string */) {
   );
 }
 
-function generateViewConfig(filename /*: string */, code /*: string */) {
+function generateViewConfig(filename, code) {
   const schema = parseFile(filename, code);
 
   const libraryName = basename(filename).replace(
@@ -58,8 +54,8 @@ function generateViewConfig(filename /*: string */, code /*: string */) {
     '',
   );
   return RNCodegen.generateViewConfig({
-    libraryName,
     schema,
+    libraryName,
   });
 }
 
@@ -102,58 +98,6 @@ function isCodegenDeclaration(declaration) {
   return false;
 }
 
-function isCodegenNativeCommandsDeclaration(declaration) {
-  if (!declaration) {
-    return false;
-  }
-
-  // Handle direct calls: codegenNativeCommands()
-  if (
-    declaration.type === 'CallExpression' &&
-    declaration.callee &&
-    declaration.callee.type === 'Identifier' &&
-    declaration.callee.name === 'codegenNativeCommands'
-  ) {
-    return true;
-  }
-
-  // Handle coverage instrumentation: (cov_xxx().s[0]++, codegenNativeCommands())
-  if (declaration.type === 'SequenceExpression' && declaration.expressions) {
-    // Get the last expression in the sequence (the actual function call)
-    const lastExpression =
-      declaration.expressions[declaration.expressions.length - 1];
-    // Recursively check if the last expression is a valid codegenNativeCommands call
-    return isCodegenNativeCommandsDeclaration(lastExpression);
-  }
-
-  // Handle Flow type casts: (codegenNativeCommands(): NativeCommands)
-  if (
-    (declaration.type === 'TypeCastExpression' ||
-      declaration.type === 'AsExpression') &&
-    declaration.expression &&
-    declaration.expression.type === 'CallExpression' &&
-    declaration.expression.callee &&
-    declaration.expression.callee.type === 'Identifier' &&
-    declaration.expression.callee.name === 'codegenNativeCommands'
-  ) {
-    return true;
-  }
-
-  // Handle TypeScript assertions: codegenNativeCommands() as NativeCommands
-  if (
-    declaration.type === 'TSAsExpression' &&
-    declaration.expression &&
-    declaration.expression.type === 'CallExpression' &&
-    declaration.expression.callee &&
-    declaration.expression.callee.type === 'Identifier' &&
-    declaration.expression.callee.name === 'codegenNativeCommands'
-  ) {
-    return true;
-  }
-
-  return false;
-}
-
 module.exports = function ({parse, types: t}) {
   return {
     pre(state) {
@@ -177,12 +121,12 @@ module.exports = function ({parse, types: t}) {
           const firstDeclaration = path.node.declaration.declarations[0];
 
           if (firstDeclaration.type === 'VariableDeclarator') {
-            // Check if this is a valid codegenNativeCommands call, handling type annotations
-            const isValidCommandsExport = isCodegenNativeCommandsDeclaration(
-              firstDeclaration.init,
-            );
-
-            if (isValidCommandsExport) {
+            if (
+              firstDeclaration.init &&
+              firstDeclaration.init.type === 'CallExpression' &&
+              firstDeclaration.init.callee.type === 'Identifier' &&
+              firstDeclaration.init.callee.name === 'codegenNativeCommands'
+            ) {
               if (
                 firstDeclaration.id.type === 'Identifier' &&
                 firstDeclaration.id.name !== 'Commands'

packages/babel-plugin-codegen/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@react-native/babel-plugin-codegen",
-  "version": "0.82.0-main",
+  "version": "0.80.0-main",
   "description": "Babel plugin to generate native module and view manager code for React Native.",
   "license": "MIT",
   "repository": {
@@ -19,14 +19,14 @@
   ],
   "bugs": "https://github.com/facebook/react-native/issues",
   "engines": {
-    "node": ">= 20.19.4"
+    "node": ">=18"
   },
   "files": [
     "index.js"
   ],
   "dependencies": {
     "@babel/traverse": "^7.25.3",
-    "@react-native/codegen": "0.82.0-main"
+    "@react-native/codegen": "0.80.0-main"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2"

packages/community-cli-plugin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@react-native/community-cli-plugin",
-  "version": "0.82.0-main",
+  "version": "0.80.0-main",
   "description": "Core CLI commands for React Native",
   "keywords": [
     "react-native",
@@ -22,30 +22,27 @@
     "dist"
   ],
   "dependencies": {
-    "@react-native/dev-middleware": "0.82.0-main",
+    "@react-native/dev-middleware": "0.80.0-main",
+    "chalk": "^4.0.0",
     "debug": "^4.4.0",
     "invariant": "^2.2.4",
-    "metro": "^0.83.1",
-    "metro-config": "^0.83.1",
-    "metro-core": "^0.83.1",
+    "metro": "^0.82.4",
+    "metro-config": "^0.82.4",
+    "metro-core": "^0.82.4",
     "semver": "^7.1.3"
   },
   "devDependencies": {
-    "metro-resolver": "^0.83.1"
+    "metro-resolver": "^0.82.4"
   },
   "peerDependencies": {
-    "@react-native-community/cli": "*",
-    "@react-native/metro-config": "*"
+    "@react-native-community/cli": "*"
   },
   "peerDependenciesMeta": {
     "@react-native-community/cli": {
       "optional": true
-    },
-    "@react-native/metro-config": {
-      "optional": true
     }
   },
   "engines": {
-    "node": ">= 20.19.4"
+    "node": ">=18"
   }
 }

packages/community-cli-plugin/src/commands/bundle/__mocks__/sign.js

@@ -4,11 +4,10 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow strict-local
  * @format
  */
 
-function sign(source: string): string {
+function sign(source) {
   return source;
 }
 

packages/community-cli-plugin/src/commands/bundle/buildBundle.js

@@ -15,10 +15,10 @@ import type {ConfigT} from 'metro-config';
 import loadMetroConfig from '../../utils/loadMetroConfig';
 import parseKeyValueParamArray from '../../utils/parseKeyValueParamArray';
 import saveAssets from './saveAssets';
+import chalk from 'chalk';
 import {promises as fs} from 'fs';
 import {runBuild} from 'metro';
 import path from 'path';
-import {styleText} from 'util';
 
 export type BundleCommandArgs = {
   assetsDest?: string,
@@ -69,14 +69,14 @@ async function buildBundleWithConfig(
 
   if (config.resolver.platforms.indexOf(args.platform) === -1) {
     console.error(
-      `${styleText('red', 'error')}: Invalid platform ${
-        args.platform ? `"${styleText('bold', args.platform)}" ` : ''
+      `${chalk.red('error')}: Invalid platform ${
+        args.platform ? `"${chalk.bold(args.platform)}" ` : ''
       }selected.`,
     );
 
     console.info(
       `Available platforms are: ${config.resolver.platforms
-        .map(x => `"${styleText('bold', x)}"`)
+        .map(x => `"${chalk.bold(x)}"`)
         .join(
           ', ',
         )}. If you are trying to bundle for an out-of-tree platform, it may not be installed.`,

packages/community-cli-plugin/src/commands/bundle/saveAssets.js

@@ -20,9 +20,9 @@ import createKeepFileAsync from './createKeepFileAsync';
 import filterPlatformAssetScales from './filterPlatformAssetScales';
 import getAssetDestPathAndroid from './getAssetDestPathAndroid';
 import getAssetDestPathIOS from './getAssetDestPathIOS';
+import chalk from 'chalk';
 import fs from 'fs';
 import path from 'path';
-import {styleText} from 'util';
 
 type CopiedFiles = {
   [src: string]: string,
@@ -65,7 +65,7 @@ async function saveAssets(
     const catalogDir = path.join(assetCatalogDest, 'RNAssets.xcassets');
     if (!fs.existsSync(catalogDir)) {
       console.error(
-        `${styleText('red', 'error')}: Could not find asset catalog 'RNAssets.xcassets' in ${assetCatalogDest}. Make sure to create it if it does not exist.`,
+        `${chalk.red('error')}: Could not find asset catalog 'RNAssets.xcassets' in ${assetCatalogDest}. Make sure to create it if it does not exist.`,
       );
       return;
     }
@@ -116,7 +116,7 @@ function copyAll(filesToCopy: CopiedFiles) {
         const src = queue.shift();
         // $FlowFixMe[incompatible-type]
         const dest = filesToCopy[src];
-        // $FlowFixMe[incompatible-type]
+        // $FlowFixMe[incompatible-call]
         copy(src, dest, copyNext);
       }
     };

packages/community-cli-plugin/src/commands/start/OpenDebuggerKeyboardHandler.js

@@ -10,7 +10,7 @@
 
 import type {TerminalReporter} from 'metro';
 
-import {styleText} from 'util';
+import chalk from 'chalk';
 
 type PageDescription = $ReadOnly<{
   id: string,
@@ -92,6 +92,7 @@ export default class OpenDebuggerKeyboardHandler {
         this.#clearTerminalMenu();
       } else if (targets.length === 1) {
         const target = targets[0];
+        // eslint-disable-next-line no-void
         void this.#tryOpenDebuggerForTarget(target);
       } else {
         this.#targetsShownForSelection = targets;
@@ -108,7 +109,7 @@ export default class OpenDebuggerKeyboardHandler {
             .slice(0, 9)
             .map(
               ({title}, i) =>
-                `${styleText(['white', 'inverse'], ` ${i + 1} `)} - "${title}"`,
+                `${chalk.white.inverse(` ${i + 1} `)} - "${title}"`,
             )
             .join('\n  ')}`,
         );
@@ -134,6 +135,7 @@ export default class OpenDebuggerKeyboardHandler {
         targetIndex < this.#targetsShownForSelection.length
       ) {
         const target = this.#targetsShownForSelection[targetIndex];
+        // eslint-disable-next-line no-void
         void this.#tryOpenDebuggerForTarget(target);
         return true;
       }

packages/community-cli-plugin/src/commands/start/attachKeyHandlers.js

@@ -11,10 +11,10 @@
 import type {TerminalReporter} from 'metro';
 
 import OpenDebuggerKeyboardHandler from './OpenDebuggerKeyboardHandler';
+import chalk from 'chalk';
 import invariant from 'invariant';
 import readline from 'readline';
 import {ReadStream} from 'tty';
-import {styleText} from 'util';
 
 const CTRL_C = '\u0003';
 const CTRL_D = '\u0004';
@@ -95,6 +95,7 @@ export default function attachKeyHandlers({
         messageSocket.broadcast('devMenu', null);
         break;
       case 'j':
+        // eslint-disable-next-line no-void
         void openDebuggerKeyboardHandler.handleOpenDebugger();
         break;
       case CTRL_C:
@@ -117,9 +118,9 @@ export default function attachKeyHandlers({
     level: 'info',
     data: `Key commands available:
 
-  ${styleText(['bold', 'inverse'], ' r ')} - reload app(s)
-  ${styleText(['bold', 'inverse'], ' d ')} - open Dev Menu
-  ${styleText(['bold', 'inverse'], ' j ')} - open DevTools
+  ${chalk.bold.inverse(' r ')} - reload app(s)
+  ${chalk.bold.inverse(' d ')} - open Dev Menu
+  ${chalk.bold.inverse(' j ')} - open DevTools
 `,
   });
 }

packages/community-cli-plugin/src/commands/start/middleware.js

@@ -31,9 +31,9 @@ type MiddlewareReturn = {
   ...
 };
 
-// $FlowFixMe[incompatible-type]
+// $FlowFixMe
 const unusedStubWSServer: ws$WebSocketServer = {};
-// $FlowFixMe[incompatible-type]
+// $FlowFixMe
 const unusedMiddlewareStub: Server = {};
 
 const communityMiddlewareFallback = {
@@ -80,7 +80,7 @@ try {
     '@react-native-community/cli-server-api',
     {paths: [communityCliPath]},
   );
-  // $FlowFixMe[unsupported-syntax] dynamic import
+  // $FlowIgnore[unsupported-syntax] dynamic import
   communityMiddlewareFallback.createDevServerMiddleware = require(
     communityCliServerApiPath,
   ).createDevServerMiddleware as CreateDevServerMiddleware;

packages/community-cli-plugin/src/commands/start/runServer.js

@@ -18,11 +18,11 @@ import * as version from '../../utils/version';
 import attachKeyHandlers from './attachKeyHandlers';
 import {createDevServerMiddleware} from './middleware';
 import {createDevMiddleware} from '@react-native/dev-middleware';
+import chalk from 'chalk';
 import Metro from 'metro';
 import {Terminal} from 'metro-core';
 import path from 'path';
 import url from 'url';
-import {styleText} from 'util';
 
 export type StartCommandArgs = {
   assetPlugins?: string[],
@@ -68,10 +68,7 @@ async function runServer(
   const devServerUrl = url.format({protocol, hostname, port});
 
   console.info(
-    styleText(
-      'blue',
-      `\nWelcome to React Native v${cliConfig.reactNativeVersion}`,
-    ),
+    chalk.blue(`\nWelcome to React Native v${cliConfig.reactNativeVersion}`),
   );
 
   const serverStatus = await isDevServerRunning(devServerUrl, projectRoot);
@@ -83,7 +80,7 @@ async function runServer(
     return;
   } else if (serverStatus === 'port_taken') {
     console.error(
-      `${styleText('red', 'error')}: Another process is running on port ${port}. Please terminate this ` +
+      `${chalk.red('error')}: Another process is running on port ${port}. Please terminate this ` +
         'process and try again, or use another port with "--port".',
     );
     return;
@@ -92,14 +89,14 @@ async function runServer(
   console.info(`Starting dev server on ${devServerUrl}\n`);
 
   if (args.assetPlugins) {
-    // $FlowFixMe[cannot-write] Assigning to readonly property
+    // $FlowIgnore[cannot-write] Assigning to readonly property
     metroConfig.transformer.assetPlugins = args.assetPlugins.map(plugin =>
       require.resolve(plugin),
     );
   }
   // TODO(T214991636): Remove legacy Metro log forwarding
   if (!args.clientLogs) {
-    // $FlowFixMe[cannot-write] Assigning to readonly property
+    // $FlowIgnore[cannot-write] Assigning to readonly property
     metroConfig.server.forwardClientLogs = false;
   }
 
@@ -127,8 +124,6 @@ async function runServer(
   const reporter: Reporter = {
     update(event: TerminalReportableEvent) {
       terminalReporter.update(event);
-      /* $FlowFixMe[constant-condition] Error discovered during Constant
-       * Condition roll out. See https://fburl.com/workplace/1v97vimq. */
       if (reportEvent) {
         reportEvent(event);
       }
@@ -136,7 +131,7 @@ async function runServer(
         terminalReporter.update({
           type: 'unstable_server_log',
           level: 'info',
-          data: `Dev server ready. ${styleText('dim', 'Press Ctrl+C to exit.')}`,
+          data: `Dev server ready. ${chalk.dim('Press Ctrl+C to exit.')}`,
         });
         attachKeyHandlers({
           devServerUrl,
@@ -146,10 +141,10 @@ async function runServer(
       }
     },
   };
-  // $FlowFixMe[cannot-write] Assigning to readonly property
+  // $FlowIgnore[cannot-write] Assigning to readonly property
   metroConfig.reporter = reporter;
 
-  await Metro.runServer(metroConfig, {
+  const serverInstance = await Metro.runServer(metroConfig, {
     host: args.host,
     secure: args.https,
     secureCert: args.cert,
@@ -163,6 +158,18 @@ async function runServer(
 
   reportEvent = eventsSocketEndpoint.reportEvent;
 
+  // In Node 8, the default keep-alive for an HTTP connection is 5 seconds. In
+  // early versions of Node 8, this was implemented in a buggy way which caused
+  // some HTTP responses (like those containing large JS bundles) to be
+  // terminated early.
+  //
+  // As a workaround, arbitrarily increase the keep-alive from 5 to 30 seconds,
+  // which should be enough to send even the largest of JS bundles.
+  //
+  // For more info: https://github.com/nodejs/node/issues/13391
+  //
+  serverInstance.keepAliveTimeout = 30000;
+
   await version.logIfUpdateAvailable(cliConfig, terminalReporter);
 }
 
@@ -175,7 +182,7 @@ function getReporterImpl(
   try {
     // First we let require resolve it, so we can require packages in node_modules
     // as expected. eg: require('my-package/reporter');
-    // $FlowFixMe[unsupported-syntax]
+    // $FlowIgnore[unsupported-syntax]
     return require(customLogReporterPath);
   } catch (e) {
     if (e.code !== 'MODULE_NOT_FOUND') {
@@ -183,7 +190,7 @@ function getReporterImpl(
     }
     // If that doesn't work, then we next try relative to the cwd, eg:
     // require('./reporter');
-    // $FlowFixMe[unsupported-syntax]
+    // $FlowIgnore[unsupported-syntax]
     return require(path.resolve(customLogReporterPath));
   }
 }

packages/community-cli-plugin/src/index.js

@@ -13,7 +13,7 @@ export type * from './index.flow';
 */
 
 if (!process.env.BUILD_EXCLUDE_BABEL_REGISTER) {
-  require('../../../scripts/shared/babelRegister').registerForMonorepo();
+  require('../../../scripts/babel-register').registerForMonorepo();
 }
 
 module.exports = require('./index.flow');

packages/community-cli-plugin/src/utils/loadMetroConfig.js

@@ -13,7 +13,7 @@ import type {ConfigT, InputConfigT, YargArguments} from 'metro-config';
 
 import {CLIError} from './errors';
 import {reactNativePlatformResolver} from './metroPlatformResolver';
-import {loadConfig, resolveConfig} from 'metro-config';
+import {loadConfig, mergeConfig, resolveConfig} from 'metro-config';
 import path from 'path';
 
 const debug = require('debug')('ReactNative:CommunityCliPlugin');
@@ -30,7 +30,7 @@ export type ConfigLoadingContext = $ReadOnly<{
 /**
  * Get the config options to override based on RN CLI inputs.
  */
-function getCommunityCliDefaultConfig(
+function getOverrideConfig(
   ctx: ConfigLoadingContext,
   config: ConfigT,
 ): InputConfigT {
@@ -85,31 +85,6 @@ export default async function loadMetroConfig(
   ctx: ConfigLoadingContext,
   options: YargArguments = {},
 ): Promise<ConfigT> {
-  let RNMetroConfig = null;
-  try {
-    RNMetroConfig = require('@react-native/metro-config');
-  } catch (e) {
-    throw new Error(
-      "Cannot resolve `@react-native/metro-config`. Ensure it is listed in your project's `devDependencies`.",
-    );
-  }
-
-  // Get the RN defaults before our customisations
-  const defaultConfig = RNMetroConfig.getDefaultConfig(ctx.root);
-  // Unflag the config as being loaded - it must be loaded again in userland.
-  global.__REACT_NATIVE_METRO_CONFIG_LOADED = false;
-
-  // Add our defaults to `@react-native/metro-config` before the user config
-  // loads them.
-  if (typeof RNMetroConfig.setFrameworkDefaults !== 'function') {
-    throw new Error(
-      '`@react-native/metro-config` does not have the expected API. Ensure it matches your React Native version.',
-    );
-  }
-  RNMetroConfig.setFrameworkDefaults(
-    getCommunityCliDefaultConfig(ctx, defaultConfig),
-  );
-
   const cwd = ctx.root;
   const projectConfig = await resolveConfig(options.config, cwd);
 
@@ -133,8 +108,13 @@ This warning will be removed in future (https://github.com/facebook/metro/issues
       console.warn(line);
     }
   }
-  return loadConfig({
+
+  const config = await loadConfig({
     cwd,
     ...options,
   });
+
+  const overrideConfig = getOverrideConfig(ctx, config);
+
+  return mergeConfig(config, overrideConfig);
 }

packages/community-cli-plugin/src/utils/version.js

@@ -11,8 +11,8 @@
 import type {Config} from '@react-native-community/cli-types';
 import type {TerminalReporter} from 'metro';
 
+import chalk from 'chalk';
 import semver from 'semver';
-import {styleText} from 'util';
 
 const debug = require('debug')('ReactNative:CommunityCliPlugin');
 
@@ -81,8 +81,8 @@ export async function logIfUpdateAvailable(
       type: 'unstable_server_log',
       level: 'info',
       data: `React Native v${newVersion.stable} is now available (your project is running on v${currentVersion}).
-Changelog: ${styleText(['dim', 'underline'], newVersion?.changelogUrl ?? 'none')}
-Diff: ${styleText(['dim', 'underline'], newVersion?.diffUrl ?? 'none')}
+Changelog: ${chalk.dim.underline(newVersion?.changelogUrl ?? 'none')}
+Diff: ${chalk.dim.underline(newVersion?.diffUrl ?? 'none')}
 `,
     });
   }
@@ -153,7 +153,7 @@ function buildDiffUrl(oldVersion: string, newVersion: string) {
  * Returns the most recent React Native version available to upgrade to.
  */
 async function getLatestRnDiffPurgeVersion(): Promise<LatestVersions | void> {
-  const options: RequestOptions = {
+  const options = {
     // https://developer.github.com/v3/#user-agent-required
     headers: {'User-Agent': '@react-native/community-cli-plugin'} as Headers,
   };

packages/core-cli-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@react-native/core-cli-utils",
-  "version": "0.82.0-main",
+  "version": "0.80.0-main",
   "description": "React Native CLI library for Frameworks to build on",
   "license": "MIT",
   "main": "./src/index.flow.js",
@@ -21,7 +21,7 @@
   ],
   "bugs": "https://github.com/facebook/react-native/issues",
   "engines": {
-    "node": ">= 20.19.4"
+    "node": ">=18"
   },
   "files": [
     "dist"

packages/core-cli-utils/src/index.js

@@ -13,7 +13,7 @@ export type * from './index.flow';
 */
 
 if (process.env.BUILD_EXCLUDE_BABEL_REGISTER == null) {
-  require('../../../scripts/shared/babelRegister').registerForMonorepo();
+  require('../../../scripts/babel-register').registerForMonorepo();
 }
 
 module.exports = require('./index.flow');

packages/core-cli-utils/src/private/app.js

@@ -71,13 +71,14 @@ const FIRST = 1,
   FOURTH = 4;
 
 function getNodePackagePath(packageName: string): string {
-  // $FlowFixMe[prop-missing] type definition is incomplete
+  // $FlowIgnore[prop-missing] type definition is incomplete
   return require.resolve(packageName, {cwd: [process.cwd(), ...module.paths]});
 }
 
 function metro(...args: $ReadOnlyArray<string>): ExecaPromise {
-  log(`🚇 metro ${args.join(' ')} `);
-  return execa('npx', ['--offline', 'metro', ...args]);
+  const metroPath = getNodePackagePath(path.join('metro', 'src', 'cli.js'));
+  log(`🚇 ${metroPath} ${args.join(' ')} `);
+  return execa('node', [metroPath, ...args]);
 }
 
 export const tasks = {

packages/core-cli-utils/src/private/apple.js

@@ -75,7 +75,7 @@ const FIRST = 1,
   FIFTH = 5;
 
 function getNodePackagePath(packageName: string): string {
-  // $FlowFixMe[prop-missing] type definition is incomplete
+  // $FlowIgnore[prop-missing] type definition is incomplete
   return require.resolve(packageName, {cwd: [process.cwd(), ...module.paths]});
 }
 
@@ -125,7 +125,7 @@ export const tasks = {
       }),
     ),
     installDependencies: task(FIFTH, 'Install CocoaPods dependencies', () => {
-      const env: {[string]: string | void} = {
+      const env = {
         RCT_NEW_ARCH_ENABLED: options.newArchitecture ? '1' : '0',
         USE_FRAMEWORKS: options.frameworks,
         USE_HERMES: options.hermes ? '1' : '0',

packages/core-cli-utils/src/public/version.js

@@ -13,7 +13,7 @@ export type * from './version.flow';
 */
 
 if (process.env.BUILD_EXCLUDE_BABEL_REGISTER == null) {
-  require('../../../../scripts/shared/babelRegister').registerForMonorepo();
+  require('../../../../scripts/babel-register').registerForMonorepo();
 }
 
 module.exports = require('./version.flow');

packages/debugger-frontend/BUILD_INFO

@@ -1,5 +1,5 @@
-@generated SignedSource<<b6a779e724ecce5e727ee674dc20f809>>
-Git revision: e87564a24cf233c60aaebee8c418ec85724f7214
+@generated SignedSource<<a57b22ca23a791c81c7a7820384fcb09>>
+Git revision: 343405ba784fca9290486cbce57e7f2ca953dc14
 Built with --nohooks: false
 Is local checkout: false
 Remote URL: https://github.com/facebook/react-native-devtools-frontend

packages/debugger-frontend/dist/third-party/front_end/Images/3d-center.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" fill="none"><path fill="#000" d="M4.062 17 3 15.938 5.438 13.5H4V12h4v4H6.5v-1.438zm11.876 0L13.5 14.562V16H12v-4h4v1.5h-1.438L17 15.938zM4 8V6.5h1.438L3 4.062 4.062 3 6.5 5.438V4H8v4zm8 0V4h1.5v1.438L15.938 3 17 4.062 14.562 6.5H16V8z"/></svg>
+<svg width="20" height="20" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M4.062 17 3 15.938 5.438 13.5H4V12h4v4H6.5v-1.438L4.062 17Zm11.876 0L13.5 14.562V16H12v-4h4v1.5h-1.438L17 15.938 15.938 17ZM4 8V6.5h1.438L3 4.062 4.062 3 6.5 5.438V4H8v4H4Zm8 0V4h1.5v1.438L15.938 3 17 4.062 14.562 6.5H16V8h-4Z" fill="#000"/></svg>