metro-config: Don't always assert import/require with unstable_enablePackageExports (#49780)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49780

Now that we're using a minimum Metro version of 0.81.3, Metro will dynamically assert `import` or `require` based on the style of the import at source.

Asserting both is likely to cause issues with `babel/runtime` and potentially other packages - see https://github.com/facebook/metro/pull/1447.

Changelog:
[Internal] metro-config: Assert import/require dynamically when using `unstable_enablePackageExports` with Metro.

Reviewed By: hoxyq

Differential Revision: D70473577

.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
@@ -24,37 +27,22 @@ 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',
-        // Flow handles these checks for us, so they aren't required
-        'no-undef': 'off',
-        'no-unreachable': 'off',
-        // Throwing from function or rejecting promises with non-error values could result in unclear error stack traces and lead to harder debugging
-        'prefer-promise-reject-errors': 'error',
-        'no-throw-literal': 'error',
-      },
-    },
-    {
-      files: ['*.js', '*.jsx', '*.ts', '*.tsx'],
-      rules: {
-        '@react-native/no-deep-imports': 'off',
+        'ft-flow/define-flow-type': 0,
+        'ft-flow/use-flow-type': 0,
+        'lint/sort-imports': 1,
+        // flow handles this check for us, so it's not required
+        'no-undef': 0,
       },
     },
     {
       files: [
-        './packages/react-native/Libraries/**/*.{js,flow}',
-        './packages/react-native/src/**/*.{js,flow}',
+        './packages/react-native/**/*.{js,flow}',
         './packages/assets/registry.js',
       ],
       parser: 'hermes-eslint',
       rules: {
-        '@react-native/monorepo/no-commonjs-exports': 'warn',
+        'lint/no-commonjs-exports': 1,
       },
     },
     {
@@ -64,17 +52,15 @@ 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/**/*'],
+      files: ['flow-typed/**/*.js'],
       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-unused-vars': 0,
+        quotes: 0,
       },
     },
     {
@@ -83,14 +69,11 @@ 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,
       },
     },
     {
@@ -141,11 +124,5 @@ module.exports = {
         ],
       },
     },
-    {
-      files: ['**/__tests__/**'],
-      rules: {
-        '@react-native/monorepo/no-react-native-imports': 'off',
-      },
-    },
   ],
 };

.flowconfig

@@ -2,14 +2,11 @@
 ; Ignore build cache folder
 <PROJECT_ROOT>/packages/react-native/sdks/.*
 
-; Ignore fb_internal modules
-<PROJECT_ROOT>/packages/react-native/src/fb_internal/.*
-
 ; Ignore the codegen e2e tests
 <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 +24,7 @@
 <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/
@@ -44,12 +41,11 @@
 flow-typed/
 packages/react-native/interface.js
 packages/react-native/flow/
+packages/react-native/src/types/
 
 [options]
 enums=true
-experimental.pattern_matching=true
 casting_syntax=both
-component_syntax=true
 
 emoji=true
 
@@ -69,11 +65,13 @@ munge_underscores=true
 module.name_mapper='^react-native$' -> '<PROJECT_ROOT>/packages/react-native/index.js'
 module.name_mapper='^react-native/\(.*\)$' -> '<PROJECT_ROOT>/packages/react-native/\1'
 module.name_mapper='^@react-native/dev-middleware$' -> '<PROJECT_ROOT>/packages/dev-middleware'
-module.name_mapper='^@?[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\|xml\|ktx\)$' -> '<PROJECT_ROOT>/packages/react-native/Libraries/Image/RelativeImageStub'
+module.name_mapper='^@?[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\|xml\)$' -> '<PROJECT_ROOT>/packages/react-native/Libraries/Image/RelativeImageStub'
 
-module.system.haste.module_ref_prefix=m#
-
-react.runtime=automatic
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FlowFixMeProps
+suppress_type=$FlowFixMeState
+suppress_type=$FlowFixMeEmpty
 
 ban_spread_key_props=true
 
@@ -98,4 +96,4 @@ untyped-import
 untyped-type-import
 
 [version]
-^0.289.0
+^0.262.0

.gitattributes

@@ -1 +0,0 @@
-*.js.flow linguist-language=JavaScript

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -19,10 +19,10 @@ body:
         * Please [search for similar issues](https://github.com/facebook/react-native/issues) in our issue tracker.
 
         Make sure that your issue:
-        * Have a **valid reproducer** (See [How to report a bug](https://reactnative.dev/contributing/how-to-report-a-bug)).
+        * Have a **valid reproducer** (either a [Expo Snack](https://snack.expo.dev/) or a [empty project from template](https://github.com/react-native-community/reproducer-react-native).
         * Is tested against the [**latest stable**](https://github.com/facebook/react-native/releases/) of React Native.
 
-        🚨 IMPORTANT: Due to the extreme number of bugs we receive, issues **without a reproducer** or for an [**unsupported versions**](https://github.com/reactwg/react-native-releases#which-versions-are-currently-supported) of React Native **will be closed**.
+        Due to the extreme number of bugs we receive, we will be looking **ONLY** into issues with a reproducer, and on [supported versions](https://github.com/reactwg/react-native-releases#which-versions-are-currently-supported) of React Native.
   - type: textarea
     id: description
     attributes:
@@ -83,7 +83,7 @@ body:
             path: /bin/zsh
         Binaries:
           Node: ...
-            version: 22.14.0
+            version: 18.14.0
         ...
       render: text
     validations:
@@ -109,8 +109,8 @@ body:
   - type: input
     id: reproducer
     attributes:
-      label: MANDATORY Reproducer
-      description: A link to either a failing RNTesterPlayground.js file, an Expo Snack or a public repository from [this template](https://github.com/react-native-community/reproducer-react-native) that reproduces this bug. Reproducers are **mandatory**, issues without a reproducer will be closed.
+      label: Reproducer
+      description: A link to a Expo Snack or a public repository that reproduces this bug, using [this template](https://github.com/react-native-community/reproducer-react-native). Reproducers are **mandatory**.
       placeholder: "https://github.com/<myuser>/<myreproducer>"
     validations:
       required: true

.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

@@ -16,10 +16,10 @@ body:
         Do not attempt to open a bug in this category if you're not using the New Architecture as your bug will be closed.
 
         Make sure that your issue:
-        * Have a **valid reproducer** (See [How to report a bug](https://reactnative.dev/contributing/how-to-report-a-bug)).
+        * Have a **valid reproducer** (either a [Expo Snack](https://snack.expo.dev/) or a [empty project from template](https://github.com/react-native-community/reproducer-react-native).
         * Is tested against the [**latest stable**](https://github.com/facebook/react-native/releases/) of React Native.
 
-        🚨 IMPORTANT: Due to the extreme number of bugs we receive, issues **without a reproducer** or for an [**unsupported versions**](https://github.com/reactwg/react-native-releases#which-versions-are-currently-supported) of React Native **will be closed**.
+        Due to the extreme number of bugs we receive, we will be looking **ONLY** into issues with a reproducer, and on [supported versions](https://github.com/reactwg/react-native-releases#which-versions-are-currently-supported) of React Native.
   - type: textarea
     id: description
     attributes:
@@ -95,7 +95,7 @@ body:
             path: /bin/zsh
         Binaries:
           Node: ...
-            version: 22.14.0
+            version: 18.14.0
         ...
       render: text
     validations:
@@ -121,8 +121,8 @@ body:
   - type: input
     id: reproducer
     attributes:
-      label: MANDATORY Reproducer
-      description: A link to either a failing RNTesterPlayground.js file, an Expo Snack or a public repository from [this template](https://github.com/react-native-community/reproducer-react-native) that reproduces this bug. Reproducers are **mandatory**, issues without a reproducer will be closed.
+      label: Reproducer
+      description: A link to a Expo Snack or a public repository that reproduces this bug, using [this template](https://github.com/react-native-community/reproducer-react-native). Reproducers are **mandatory**.
       placeholder: "https://github.com/<myuser>/<myreproducer>"
     validations:
       required: true

.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:
@@ -17,9 +20,6 @@ runs:
     - name: Install node dependencies
       uses: ./.github/actions/yarn-install
     - name: Set React Native Version
-      # We don't want to set the version for stable branches, because this has been
-      # already set from the 'create release' commits on the release branch.
-      if: ${{ !endsWith(github.ref_name, '-stable') }}
       shell: bash
       run: node ./scripts/releases/set-rn-artifacts-version.js --build-type ${{ inputs.release-type }}
     - name: Setup gradle
@@ -31,11 +31,10 @@ runs:
       uses: actions/cache/restore@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ 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
@@ -44,7 +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 [[ "${{ inputs.release-type }}" == "nightly" ]]; then
           # nightly: we set isSnapshot to true so artifacts are sent to the right repository on Maven Central.
@@ -60,7 +63,7 @@ runs:
       uses: actions/cache/save@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ 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
@@ -83,13 +86,27 @@ runs:
       if: ${{ always() }}
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: rntester-debug
-        path: packages/rn-tester/android/app/build/outputs/apk/debug/
+        name: rntester-hermes-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/
+        name: rntester-hermes-release
+        path: packages/rn-tester/android/app/build/outputs/apk/hermes/release/
+        compression-level: 0
+    - name: Upload RNTester APK - jsc-debug
+      if: ${{ always() }}
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: rntester-jsc-debug
+        path: packages/rn-tester/android/app/build/outputs/apk/jsc/debug/
+        compression-level: 0
+    - name: Upload RNTester APK - jsc-release
+      if: ${{ always() }}
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: rntester-jsc-release
+        path: packages/rn-tester/android/app/build/outputs/apk/jsc/release/
         compression-level: 0

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

@@ -0,0 +1,103 @@
+name: build-apple-slices-hermes
+description: This action builds hermesc for Apple platforms
+inputs:
+  hermes-version:
+    required: true
+    description: The version of Hermes
+  react-native-version:
+    required: true
+    description: The version of Hermes
+  slice:
+    required: true
+    description: The slice of hermes you want to build. It could be iphone, iphonesimulator, macos, catalyst, appletvos, appletvsimulator, xros, or xrossimulator
+  flavor:
+    required: true
+    description: The flavor we want to build. It can be Debug or Release
+runs:
+  using: composite
+  steps:
+    - name: Setup xcode
+      uses: ./.github/actions/setup-xcode
+    - name: Restore Hermes workspace
+      uses: ./.github/actions/restore-hermes-workspace
+    - name: Restore HermesC Artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: hermesc-apple
+        path: ./packages/react-native/sdks/hermes/build_host_hermesc
+    - name: Restore Slice From Cache
+      id: restore-slice-cache
+      uses: actions/cache/restore@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/build_${{ inputs.slice }}_${{ inputs.flavor }}
+        key: v6-hermes-apple-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}-${{ hashfiles('packages/react-native/sdks/hermes-engine/utils/build-apple-framework.sh') }}-${{ inputs.slice }}-${{ inputs.flavor }}
+    - name: Build the Hermes ${{ inputs.slice }} frameworks
+      shell: bash
+      run: |
+        cd ./packages/react-native/sdks/hermes || exit 1
+        SLICE=${{ inputs.slice }}
+        FLAVOR=${{ inputs.flavor }}
+        FINAL_PATH=build_"$SLICE"_"$FLAVOR"
+        echo "Final path for this slice is: $FINAL_PATH"
+
+        if [[ -d "$FINAL_PATH" ]]; then
+          echo "[HERMES] Skipping! Found the requested slice at $FINAL_PATH".
+          exit 0
+        fi
+
+        if [[ "$ARTIFACTS_EXIST" ]]; then
+          echo "[HERMES] Skipping! Artifacts exists already."
+          exit 0
+        fi
+
+        export RELEASE_VERSION=${{ inputs.react-native-version }}
+
+        # HermesC is used to build hermes, so it has to be executable
+        chmod +x ./build_host_hermesc/bin/hermesc
+
+        if [[ "$SLICE" == "macosx" ]]; then
+          echo "[HERMES] Building Hermes for MacOS"
+
+          chmod +x ./utils/build-mac-framework.sh
+          BUILD_TYPE="${{ inputs.flavor }}" ./utils/build-mac-framework.sh
+        else
+          echo "[HERMES] Building Hermes for iOS: $SLICE"
+
+          chmod +x ./utils/build-ios-framework.sh
+          BUILD_TYPE="${{ inputs.flavor }}" ./utils/build-ios-framework.sh "$SLICE"
+        fi
+
+        echo "Moving from build_$SLICE to $FINAL_PATH"
+        mv build_"$SLICE" "$FINAL_PATH"
+
+        # check whether everything is there
+        if [[ -d "$FINAL_PATH/API/hermes/hermes.framework" ]]; then
+          echo "Successfully built hermes.framework for $SLICE in $FLAVOR"
+        else
+          echo "Failed to built hermes.framework for $SLICE in $FLAVOR"
+          exit 1
+        fi
+
+        if [[ -d "$FINAL_PATH/API/hermes/hermes.framework.dSYM" ]]; then
+          echo "Successfully built hermes.framework.dSYM for $SLICE in $FLAVOR"
+        else
+          echo "Failed to built hermes.framework.dSYM for $SLICE in $FLAVOR"
+          echo "Please try again"
+          exit 1
+        fi
+    - name: Compress slices to preserve Symlinks
+      shell: bash
+      run: |
+        cd ./packages/react-native/sdks/hermes
+        tar -czv -f build_${{ matrix.slice }}_${{ matrix.flavor }}.tar.gz build_${{ matrix.slice }}_${{ matrix.flavor }}
+    - name: Upload Artifact for Slice (${{ inputs.slice }}, ${{ inputs.flavor }}}
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: slice-${{ inputs.slice }}-${{ inputs.flavor }}
+        path: ./packages/react-native/sdks/hermes/build_${{ inputs.slice }}_${{ inputs.flavor }}.tar.gz
+    - name: Save slice cache
+      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }} # To avoid that the cache explode.
+      uses: actions/cache/save@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/build_${{ inputs.slice }}_${{ inputs.flavor }}
+        key: v6-hermes-apple-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}-${{ hashfiles('packages/react-native/sdks/hermes-engine/utils/build-apple-framework.sh') }}-${{ inputs.SLICE }}-${{ inputs.FLAVOR }}

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

@@ -0,0 +1,227 @@
+name: build-hermes-macos
+description: This action builds hermesc for Apple platforms
+inputs:
+  hermes-version:
+    required: true
+    description: The version of Hermes
+  react-native-version:
+    required: true
+    description: The version of React Native
+  flavor:
+    required: true
+    description: The flavor we want to build. It can be Debug or Release
+runs:
+  using: composite
+  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
+      uses: actions/cache/restore@v4
+      with:
+        key: v4-hermes-artifacts-${{ inputs.flavor }}-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}-${{ hashFiles('./packages/react-native/sdks/hermes-engine/utils/build-apple-framework.sh') }}
+        path: |
+          /tmp/hermes/osx-bin/${{ inputs.flavor }}
+          /tmp/hermes/dSYM/${{ inputs.flavor }}
+          /tmp/hermes/hermes-runtime-darwin/hermes-ios-${{ inputs.flavor }}.tar.gz
+    - name: Check if the required artifacts already exist
+      id: check_if_apple_artifacts_are_there
+      shell: bash
+      run: |
+        FLAVOR="${{ inputs.flavor }}"
+        echo "Flavor is $FLAVOR"
+        OSX_BIN="/tmp/hermes/osx-bin/$FLAVOR"
+        DSYM="/tmp/hermes/dSYM/$FLAVOR"
+        HERMES="/tmp/hermes/hermes-runtime-darwin/hermes-ios-$FLAVOR.tar.gz"
+
+        if [[ -d "$OSX_BIN" ]] && \
+            [[ -d "$DSYM" ]] && \
+            [[ -f "$HERMES" ]]; then
+
+          echo "Artifacts are there!"
+          echo "ARTIFACTS_EXIST=true" >> $GITHUB_ENV
+          echo "ARTIFACTS_EXIST=true" >> $GITHUB_OUTPUT
+        fi
+    - name: Yarn- Install Dependencies
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: ./.github/actions/yarn-install
+    - name: Slice cache macosx
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-macosx-${{ inputs.flavor }}
+    - name: Slice cache iphoneos
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-iphoneos-${{ inputs.flavor }}
+    - name: Slice cache iphonesimulator
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-iphonesimulator-${{ inputs.flavor }}
+    - name: Slice cache appletvos
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-appletvos-${{ inputs.flavor }}
+    - name: Slice cache appletvsimulator
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-appletvsimulator-${{ inputs.flavor }}
+    - name: Slice cache catalyst
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-catalyst-${{ inputs.flavor }}
+    - name: Slice cache xros
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-xros-${{ inputs.flavor }}
+    - name: Slice cache xrsimulator
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      uses: actions/download-artifact@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/
+        name: slice-xrsimulator-${{ inputs.flavor }}
+    - name: Unzip slices
+      shell: bash
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      run: |
+        cd ./packages/react-native/sdks/hermes
+        ls -l .
+        tar -xzv -f build_catalyst_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_iphoneos_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_iphonesimulator_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_appletvos_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_appletvsimulator_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_macosx_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_xros_${{ matrix.flavor }}.tar.gz
+        tar -xzv -f build_xrsimulator_${{ matrix.flavor }}.tar.gz
+    - name: Move back build folders
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      shell: bash
+      run: |
+        ls -l ./packages/react-native/sdks/hermes
+        cd ./packages/react-native/sdks/hermes || exit 1
+        mv build_macosx_${{ inputs.flavor }} build_macosx
+        mv build_iphoneos_${{ inputs.flavor }} build_iphoneos
+        mv build_iphonesimulator_${{ inputs.flavor }} build_iphonesimulator
+        mv build_appletvos_${{ inputs.flavor }} build_appletvos
+        mv build_appletvsimulator_${{ inputs.flavor }} build_appletvsimulator
+        mv build_catalyst_${{ inputs.flavor }} build_catalyst
+        mv build_xros_${{ inputs.flavor }} build_xros
+        mv build_xrsimulator_${{ inputs.flavor }} build_xrsimulator
+    - name: Prepare destroot folder
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      shell: bash
+      run: |
+        cd ./packages/react-native/sdks/hermes || exit 1
+        chmod +x ./utils/build-apple-framework.sh
+        . ./utils/build-apple-framework.sh
+        prepare_dest_root_for_ci
+    - name: Create fat framework for iOS
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      shell: bash
+      run: |
+        cd ./packages/react-native/sdks/hermes || exit 1
+        echo "[HERMES] Creating the universal framework"
+        chmod +x ./utils/build-ios-framework.sh
+        ./utils/build-ios-framework.sh build_framework
+
+        chmod +x ./destroot/bin/hermesc
+    - name: Package the Hermes Apple frameworks
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      shell: bash
+      run: |
+        BUILD_TYPE="${{ inputs.flavor }}"
+        echo "Packaging Hermes Apple frameworks for $BUILD_TYPE build type"
+
+        TARBALL_OUTPUT_DIR=$(mktemp -d /tmp/hermes-tarball-output-XXXXXXXX)
+
+        TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")
+
+        echo "Packaging Hermes Apple frameworks for $BUILD_TYPE build type"
+
+        TARBALL_OUTPUT_PATH=$(node ./packages/react-native/scripts/hermes/create-tarball.js \
+          --inputDir ./packages/react-native/sdks/hermes \
+          --buildType "$BUILD_TYPE" \
+          --outputDir $TARBALL_OUTPUT_DIR)
+
+        echo "Hermes tarball saved to $TARBALL_OUTPUT_PATH"
+
+        mkdir -p $HERMES_TARBALL_ARTIFACTS_DIR
+        cp $TARBALL_OUTPUT_PATH $HERMES_TARBALL_ARTIFACTS_DIR/.
+
+        mkdir -p /tmp/hermes/osx-bin/${{ inputs.flavor }}
+        cp ./packages/react-native/sdks/hermes/build_macosx/bin/* /tmp/hermes/osx-bin/${{ inputs.flavor }}
+        ls -lR /tmp/hermes/osx-bin/
+    - name: Create dSYM archive
+      if: ${{ steps.check_if_apple_artifacts_are_there.outputs.ARTIFACTS_EXIST != 'true' }}
+      shell: bash
+      run: |
+        FLAVOR=${{ inputs.flavor }}
+        WORKING_DIR="/tmp/hermes_tmp/dSYM/$FLAVOR"
+
+        mkdir -p "$WORKING_DIR/macosx"
+        mkdir -p "$WORKING_DIR/catalyst"
+        mkdir -p "$WORKING_DIR/iphoneos"
+        mkdir -p "$WORKING_DIR/iphonesimulator"
+        mkdir -p "$WORKING_DIR/appletvos"
+        mkdir -p "$WORKING_DIR/appletvsimulator"
+        mkdir -p "$WORKING_DIR/xros"
+        mkdir -p "$WORKING_DIR/xrsimulator"
+
+        cd ./packages/react-native/sdks/hermes || exit 1
+
+        DSYM_FILE_PATH=API/hermes/hermes.framework.dSYM
+        cp -r build_macosx/$DSYM_FILE_PATH "$WORKING_DIR/macosx/"
+        cp -r build_catalyst/$DSYM_FILE_PATH "$WORKING_DIR/catalyst/"
+        cp -r build_iphoneos/$DSYM_FILE_PATH "$WORKING_DIR/iphoneos/"
+        cp -r build_iphonesimulator/$DSYM_FILE_PATH "$WORKING_DIR/iphonesimulator/"
+        cp -r build_appletvos/$DSYM_FILE_PATH "$WORKING_DIR/appletvos/"
+        cp -r build_appletvsimulator/$DSYM_FILE_PATH "$WORKING_DIR/appletvsimulator/"
+        cp -r build_xros/$DSYM_FILE_PATH "$WORKING_DIR/xros/"
+        cp -r build_xrsimulator/$DSYM_FILE_PATH "$WORKING_DIR/xrsimulator/"
+
+        DEST_DIR="/tmp/hermes/dSYM/$FLAVOR"
+        tar -C "$WORKING_DIR" -czvf "hermes.framework.dSYM" .
+
+        mkdir -p "$DEST_DIR"
+        mv "hermes.framework.dSYM" "$DEST_DIR"
+    - name: Upload hermes dSYM artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-dSYM-${{ inputs.flavor }}
+        path: /tmp/hermes/dSYM/${{ inputs.flavor }}
+    - name: Upload hermes Runtime artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-darwin-bin-${{ inputs.flavor }}
+        path: /tmp/hermes/hermes-runtime-darwin/hermes-ios-${{ inputs.flavor }}.tar.gz
+    - name: Upload hermes osx artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-osx-bin-${{ inputs.flavor }}
+        path: /tmp/hermes/osx-bin/${{ inputs.flavor }}
+    - name: Upload Hermes Artifacts
+      uses: actions/cache/save@v4
+      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }} # To avoid that the cache explode.
+      with:
+        key: v4-hermes-artifacts-${{ inputs.flavor }}-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}-${{ hashFiles('./packages/react-native/sdks/hermes-engine/utils/build-apple-framework.sh') }}
+        path: |
+          /tmp/hermes/osx-bin/${{ inputs.flavor }}
+          /tmp/hermes/dSYM/${{ inputs.flavor }}
+          /tmp/hermes/hermes-runtime-darwin/hermes-ios-${{ inputs.flavor }}.tar.gz

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

@@ -0,0 +1,37 @@
+name: build-hermesc-apple
+description: This action builds hermesc for Apple platforms
+inputs:
+  hermes-version:
+    required: true
+    description: The version of Hermes
+  react-native-version:
+    required: true
+    description: The version of React Native
+runs:
+  using: composite
+  steps:
+    - name: Restore Hermes workspace
+      uses: ./.github/actions/restore-hermes-workspace
+    - name: Hermes apple cache
+      uses: actions/cache/restore@v4
+      with:
+        path: ./packages/react-native/sdks/hermes/build_host_hermesc
+        key: v2-hermesc-apple-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
+    - name: Build HermesC Apple
+      shell: bash
+      run: |
+        cd ./packages/react-native/sdks/hermes || exit 1
+        . ./utils/build-apple-framework.sh
+        build_host_hermesc_if_needed
+    - name: Upload HermesC Artifact
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermesc-apple
+        path: ./packages/react-native/sdks/hermes/build_host_hermesc
+    - name: Cache hermesc apple
+      uses: actions/cache/save@v4
+      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }} # To avoid that the cache explode.
+      with:
+        path: ./packages/react-native/sdks/hermes/build_host_hermesc
+        key: v2-hermesc-apple-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
+        enableCrossOsArchive: true

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

@@ -0,0 +1,49 @@
+name: build-hermesc-linux
+description: This action builds hermesc for linux platforms
+inputs:
+  hermes-version:
+    required: True
+    description: The version of Hermes
+  react-native-version:
+    required: True
+    description: The version of React Native
+runs:
+  using: composite
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        sudo apt update
+        sudo apt install -y git openssh-client cmake build-essential \
+            libreadline-dev libicu-dev jq zip python3
+    - name: Restore Hermes workspace
+      uses: ./.github/actions/restore-hermes-workspace
+    - name: Linux cache
+      uses: actions/cache@v4
+      with:
+        key: v1-hermes-${{ github.job }}-linux-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
+        path: |
+          /tmp/hermes/linux64-bin/
+          /tmp/hermes/hermes/destroot/
+    - name: Set up workspace
+      shell: bash
+      run: |
+        mkdir -p /tmp/hermes/linux64-bin
+    - name: Build HermesC for Linux
+      shell: bash
+      run: |
+        if [ -f /tmp/hermes/linux64-bin/hermesc ]; then
+          echo 'Skipping; Clean "/tmp/hermes/linux64-bin" to rebuild.'
+        else
+          cd /tmp/hermes
+          cmake -S hermes -B build -DHERMES_STATIC_LINK=ON -DCMAKE_BUILD_TYPE=Release -DHERMES_ENABLE_TEST_SUITE=OFF \
+            -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=True -DCMAKE_CXX_FLAGS=-s -DCMAKE_C_FLAGS=-s \
+            -DCMAKE_EXE_LINKER_FLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive"
+          cmake --build build --target hermesc -j 4
+          cp /tmp/hermes/build/bin/hermesc /tmp/hermes/linux64-bin/.
+        fi
+    - name: Upload linux artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-linux-bin
+        path: /tmp/hermes/linux64-bin

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

@@ -0,0 +1,83 @@
+name: build-hermesc-windows
+description: This action builds hermesc for Windows platforms
+inputs:
+  hermes-version:
+    required: True
+    description: The version of Hermes
+  react-native-version:
+    required: True
+    description: The version of React Native
+runs:
+  using: composite
+  steps:
+    - name: Download Previous Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-workspace
+        path: 'D:\tmp\hermes'
+    - name: Set up workspace
+      shell: powershell
+      run: |
+        mkdir -p D:\tmp\hermes\osx-bin
+        mkdir -p .\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: v2-hermes-${{ github.job }}-windows-${{ inputs.hermes-version }}-${{ inputs.react-native-version }}
+        path: |
+          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
+      shell: powershell
+      run: |
+        New-Item -ItemType Directory -ErrorAction SilentlyContinue $Env:HERMES_WS_DIR\icu
+        New-Item -ItemType Directory -ErrorAction SilentlyContinue $Env:HERMES_WS_DIR\deps
+        New-Item -ItemType Directory -ErrorAction SilentlyContinue $Env:HERMES_WS_DIR\win64-bin
+    - name: Build HermesC for Windows
+      shell: powershell
+      run: |
+        if (-not(Test-Path -Path $Env:HERMES_WS_DIR\win64-bin\hermesc.exe)) {
+          cd $Env:HERMES_WS_DIR\icu
+          # If Invoke-WebRequest shows a progress bar, it will fail with
+          #   Win32 internal error "Access is denied" 0x5 occurred [...]
+          $progressPreference = 'silentlyContinue'
+          Invoke-WebRequest -Uri "$Env:ICU_URL" -OutFile "icu.zip"
+          Expand-Archive -Path "icu.zip" -DestinationPath "."
+
+          cd $Env:HERMES_WS_DIR
+          Copy-Item -Path "icu\bin64\icu*.dll" -Destination "deps"
+          # Include MSVC++ 2015 redistributables
+          Copy-Item -Path "c:\windows\system32\msvcp140.dll" -Destination "deps"
+          Copy-Item -Path "c:\windows\system32\vcruntime140.dll" -Destination "deps"
+          Copy-Item -Path "c:\windows\system32\vcruntime140_1.dll" -Destination "deps"
+
+          $Env:PATH += ";$Env:CMAKE_DIR;$Env:MSBUILD_DIR"
+          $Env:ICU_ROOT = "$Env:HERMES_WS_DIR\icu"
+
+          cmake -S hermes -B build_release -G 'Visual Studio 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
+          cmake --build . --target hermesc --config Release
+          if (-not $?) { throw "Failed to build Hermes" }
+
+          echo "Copying hermesc.exe to win64-bin"
+          cd $Env:HERMES_WS_DIR
+          Copy-Item -Path "build_release\bin\Release\hermesc.exe" -Destination "win64-bin"
+          # Include Windows runtime dependencies
+          Copy-Item -Path "deps\*" -Destination "win64-bin"
+        }
+        else {
+            Write-Host "Skipping; Clean c:\tmp\hermes\win64-bin to rebuild."
+        }
+    - name: Upload windows artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-win64-bin
+        path: D:\tmp\hermes\win64-bin\

.github/actions/build-npm-package/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
+  hermes-ws-dir:
+    required: 'true'
+    description: The workspace for hermes
   gha-npm-token:
     required: false
     description: The GHA npm token, required only to publish to npm
@@ -17,35 +20,107 @@ runs:
     - name: Setup git safe folders
       shell: bash
       run: git config --global --add safe.directory '*'
+    - name: Create /tmp/hermes/osx-bin directory
+      shell: bash
+      run: mkdir -p /tmp/hermes/osx-bin
+    - name: Download osx-bin release artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-osx-bin-Release
+        path: /tmp/hermes/osx-bin/Release
+    - name: Download osx-bin debug artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-osx-bin-Debug
+        path: /tmp/hermes/osx-bin/Debug
+    - name: Download darwin-bin release artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-darwin-bin-Release
+        path: /tmp/hermes/hermes-runtime-darwin
+    - name: Download darwin-bin debug artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-darwin-bin-Debug
+        path: /tmp/hermes/hermes-runtime-darwin
+    - name: Download hermes dSYM debug artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-dSYM-Debug
+        path: /tmp/hermes/dSYM/Debug
+    - name: Download hermes dSYM release vartifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-dSYM-Release
+        path: /tmp/hermes/dSYM/Release
+    - name: Download windows-bin artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-win64-bin
+        path: /tmp/hermes/win64-bin
+    - name: Download linux-bin artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-linux-bin
+        path: /tmp/hermes/linux64-bin
+    - name: Show /tmp/hermes directory
+      shell: bash
+      run: ls -lR /tmp/hermes
+    - name: Copy Hermes binaries
+      shell: bash
+      run: |
+        mkdir -p ./packages/react-native/sdks/hermesc ./packages/react-native/sdks/hermesc/osx-bin ./packages/react-native/sdks/hermesc/win64-bin ./packages/react-native/sdks/hermesc/linux64-bin
+
+        # When build_hermes_macos runs as a matrix, it outputs
+        if [[ -d ${{ inputs.hermes-ws-dir }}/osx-bin/Release ]]; then
+          cp -r ${{ inputs.hermes-ws-dir }}/osx-bin/Release/* ./packages/react-native/sdks/hermesc/osx-bin/.
+        elif [[ -d ${{ inputs.hermes-ws-dir }}/osx-bin/Debug ]]; then
+          cp -r ${{ inputs.hermes-ws-dir }}/osx-bin/Debug/* ./packages/react-native/sdks/hermesc/osx-bin/.
+        else
+          ls ${{ inputs.hermes-ws-dir }}/osx-bin || echo "hermesc macOS artifacts directory missing."
+          echo "Could not locate macOS hermesc binary."; exit 1;
+        fi
+
+        # Sometimes, GHA creates artifacts with lowercase Debug/Release. Make sure that if it happen, we uppercase them.
+        if [[ -f "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-debug.tar.gz" ]]; then
+          mv "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-debug.tar.gz" "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-Debug.tar.gz"
+        fi
+
+        if [[ -f "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-release.tar.gz" ]]; then
+          mv "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-release.tar.gz" "${{ inputs.hermes-ws-dir }}/hermes-runtime-darwin/hermes-ios-Release.tar.gz"
+        fi
+
+        cp -r ${{ inputs.hermes-ws-dir }}/win64-bin/* ./packages/react-native/sdks/hermesc/win64-bin/.
+        cp -r ${{ inputs.hermes-ws-dir }}/linux64-bin/* ./packages/react-native/sdks/hermesc/linux64-bin/.
+
+        # Make sure the hermesc files are actually executable.
+        chmod -R +x packages/react-native/sdks/hermesc/*
+
+        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/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
       shell: bash
       run: yarn build
-    - name: Build types
-      shell: bash
-      run: yarn build-types --skip-snapshot
     # 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 +26,12 @@ 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 file structure
+    - name: Lint java
       shell: bash
-      run: ./.github/workflow-scripts/lint_files.sh
+      run: ./.github/workflow-scripts/exec_swallow_error.sh yarn lint-java --check
     - 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
@@ -44,12 +44,3 @@ runs:
     - name: Check formatting
       shell: bash
       run: yarn run format-check
-    - name: Lint markdown
-      shell: bash
-      run: yarn run lint-markdown
-    - name: Build types
-      shell: bash
-      run: yarn build-types --skip-snapshot
-    - name: Run typescript check of generated types
-      shell: bash
-      run: yarn test-generated-typescript

.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
@@ -7,6 +7,9 @@ inputs:
   app-id:
     required: true
     description: The id of the app to test
+  jsengine:
+    required: true
+    description: The js engine we are using
   maestro-flow:
     required: true
     description: the folder that contains the maestro tests
@@ -22,13 +25,17 @@ 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
   steps:
     - name: Installing Maestro
       shell: bash
-      run: export MAESTRO_VERSION=1.40.0; curl -Ls "https://get.maestro.mobile.dev" | bash
+      run: export MAESTRO_VERSION=1.39.7; curl -Ls "https://get.maestro.mobile.dev" | bash
     - name: Set up JDK 17
       if: ${{ inputs.install-java == 'true' }}
       uses: actions/setup-java@v4
@@ -72,7 +79,7 @@ runs:
       uses: actions/upload-artifact@v4.3.4
       if: always()
       with:
-        name: e2e_android_${{ steps.normalize-app-id.outputs.app-id }}_report_${{ inputs.flavor }}_NewArch
+        name: e2e_android_${{ steps.normalize-app-id.outputs.app-id }}_report_${{ inputs.jsengine }}_${{ inputs.flavor }}_${{ inputs.architecture }}
         path: |
           report.xml
           screen.mp4
@@ -80,5 +87,5 @@ runs:
       if: steps.run-tests.outcome == 'failure'
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: maestro-logs-android-${{ steps.normalize-app-id.outputs.app-id }}-${{ inputs.flavor }}-NewArch
+        name: maestro-logs-android-${{ steps.normalize-app-id.outputs.app-id }}-${{ inputs.jsengine }}-${{ inputs.flavor }}-${{ inputs.architecture }}
         path: /tmp/MaestroLogs

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

@@ -7,6 +7,9 @@ inputs:
   app-id:
     required: true
     description: The id of the app to test
+  jsengine:
+    required: true
+    description: The js engine we are using
   maestro-flow:
     required: true
     description: the folder that contains the maestro tests
@@ -18,13 +21,17 @@ 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
   steps:
     - name: Installing Maestro
       shell: bash
-      run: export MAESTRO_VERSION=1.40.0; curl -Ls "https://get.maestro.mobile.dev" | bash
+      run: export MAESTRO_VERSION=1.39.7; curl -Ls "https://get.maestro.mobile.dev" | bash
     - name: Installing Maestro dependencies
       shell: bash
       run: |
@@ -35,8 +42,6 @@ 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
@@ -61,24 +66,24 @@ runs:
           "${{ inputs.app-path }}" \
           "${{ inputs.app-id }}" \
           "${{ inputs.maestro-flow }}" \
-          "Hermes" \
+          "${{ inputs.jsengine }}" \
           "${{ inputs.flavor }}" \
           "${{ inputs.working-directory }}"
     - name: Store video record
       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.jsengine }}_${{ inputs.flavor }}_${{ inputs.architecture }}
         path: |
-          video_record_1.mov
-          video_record_2.mov
-          video_record_3.mov
-          video_record_4.mov
-          video_record_5.mov
+          video_record_${{ inputs.jsengine }}_1.mov
+          video_record_${{ inputs.jsengine }}_2.mov
+          video_record_${{ inputs.jsengine }}_3.mov
+          video_record_${{ inputs.jsengine }}_4.mov
+          video_record_${{ inputs.jsengine }}_5.mov
           report.xml
     - name: Store Logs
       if: failure() && steps.run-tests.outcome == 'failure'
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.flavor }}-NewArch
+        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.jsengine }}-${{ inputs.flavor }}-${{ inputs.architecture }}
         path: /tmp/MaestroLogs

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

@@ -0,0 +1,100 @@
+name: prepare-hermes-workspace
+description: This action prepares the hermes workspace with the right hermes and react-native versions.
+inputs:
+  hermes-ws-dir:
+    required: true
+    description: The hermes dir we need to use to setup the workspace
+  hermes-version-file:
+    required: true
+    description: the path to the file that will contain the hermes version
+outputs:
+  hermes-version:
+    description: the version of Hermes tied to this run
+    value: ${{ steps.hermes-version.outputs.VERSION }}
+  react-native-version:
+    description: the version of React Native tied to this run
+    value: ${{ steps.react-native-version.outputs.VERSION }}
+runs:
+  using: composite
+  steps:
+    - name: Setup node.js
+      uses: ./.github/actions/setup-node
+
+    - name: Setup hermes version
+      shell: bash
+      id: hermes-version
+      run: |
+        mkdir -p "/tmp/hermes" "/tmp/hermes/download" "/tmp/hermes/hermes"
+
+        if [ -f "${{ inputs.hermes-version-file }}" ]; then
+          echo "Hermes Version file found! Using this version for the build:"
+          echo "VERSION=$(cat ${{ inputs.hermes-version-file }})" >> "$GITHUB_OUTPUT"
+        else
+          echo "Hermes Version file not found!!!"
+          echo "Using the last commit from main for the build:"
+          HERMES_TAG_SHA=$(git ls-remote https://github.com/facebook/hermes main | cut -f 1 | tr -d '[:space:]')
+          echo "VERSION=$HERMES_TAG_SHA" >> "$GITHUB_OUTPUT"
+        fi
+        echo "Hermes commit is $HERMES_TAG_SHA"
+
+    - name: Get react-native version
+      shell: bash
+      id: react-native-version
+      run: |
+        VERSION=$(cat packages/react-native/package.json | jq -r '.version')
+        # Save the react native version we are building in an output variable so we can use that file as part of the cache key.
+        echo "VERSION=$VERSION" >> "$GITHUB_OUTPUT"
+        echo "React Native Version is $VERSION"
+
+    - name: Cache hermes workspace
+      id: restore-hermes
+      uses: actions/cache/restore@v4
+      with:
+        path: |
+          /tmp/hermes/download/
+          /tmp/hermes/hermes/
+        key: v1-hermes-${{ steps.hermes-version.outputs.version }}
+        enableCrossOsArchive: true
+
+    # It happened while testing that a cache was created from the right folders
+    # but those folders where empty. Thus, the next check ensures that we can work with those caches.
+    - name: Check if cache was meaningful
+      id: meaningful-cache
+      shell: bash
+      run: |
+        if [[ -d /tmp/hermes/hermes ]] && [[ -n "$(ls -A /tmp/hermes/hermes)"  ]]; then
+          echo "Found a good hermes cache"
+          echo "HERMES_CACHED=true" >> "$GITHUB_OUTPUT"
+        fi
+
+    - name: Yarn- Install Dependencies
+      if: ${{ steps.meaningful-cache.outputs.HERMES_CACHED != 'true' }}
+      uses: ./.github/actions/yarn-install
+
+    - name: Download Hermes tarball
+      if: ${{ steps.meaningful-cache.outputs.HERMES_CACHED != 'true' }}
+      shell: bash
+      run: |
+        node packages/react-native/scripts/hermes/prepare-hermes-for-build ${{ github.event.pull_request.html_url }}
+        cp packages/react-native/sdks/download/* ${{ inputs.hermes-ws-dir }}/download/.
+        cp -r packages/react-native/sdks/hermes/* ${{ inputs.hermes-ws-dir }}/hermes/.
+
+        echo ${{ steps.hermes-version.outputs.version }}
+
+    - name: Upload Hermes artifact
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: hermes-workspace
+        path: |
+          /tmp/hermes/download/
+          /tmp/hermes/hermes/
+
+    - name: Cache hermes workspace
+      uses: actions/cache/save@v4
+      if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode.
+      with:
+        path: |
+          /tmp/hermes/download/
+          /tmp/hermes/hermes/
+        key: v1-hermes-${{ steps.hermes-version.outputs.version }}
+        enableCrossOsArchive: true

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

@@ -0,0 +1,16 @@
+name: restore-hermes-workspace
+description: "Restore hermes workspace that has been created in Prepare Hermes Workspace"
+runs:
+  using: composite
+  steps:
+    - name: Download Previous Artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-workspace
+        path: /tmp/hermes
+    - name: Set up workspace
+      shell: bash
+      run: |
+        mkdir -p $HERMES_OSXBIN_ARTIFACTS_DIR ./packages/react-native/sdks/hermes
+        cp -r $HERMES_WS_DIR/hermes/* ./packages/react-native/sdks/hermes/.
+        cp -r ./packages/react-native/sdks/hermes-engine/utils ./packages/react-native/sdks/hermes/.

.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 +1,28 @@
+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
+runs:
+  using: composite
+  steps:
+    - name: See commands.yml with_xcodebuild_cache
+      shell: bash
+      run: echo "See commands.yml with_xcodebuild_cache"
+    - name: Prepare Xcodebuild cache
+      shell: bash
+      run: |
+        WEEK=$(date +"%U")
+        YEAR=$(date +"%Y")
+        echo "$WEEK-$YEAR" > /tmp/week_year
+    - name: Cache podfile lock
+      uses: actions/cache@v4
+      with:
+        path: packages/rn-tester/Podfile.lock
+        key: v11-podfilelock-${{ github.job }}-${{ hashfiles('packages/rn-tester/Podfile') }}-${{ hashfiles('/tmp/week_year') }}-${{ inputs.hermes-version }}
+    - name: Cache cocoapods
+      uses: actions/cache@v4
+      with:
+        path: packages/rn-tester/Pods
+        key: v13-cocoapods-${{ github.job }}-${{ hashfiles('packages/rn-tester/Podfile.lock') }}-${{ hashfiles('packages/rn-tester/Podfile') }}-${{ inputs.hermes-version}}

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

@@ -4,11 +4,7 @@ inputs:
   xcode-version:
     description: 'The xcode version to use'
     required: false
-    default: '16.2.0'
-  platform:
-    description: 'The platform to use. Valid values are: ios, ios-simulator, macos, mac-catalyst, tvos, tvos-simulator, xros, xros-simulator'
-    required: false
-    default: 'macos'
+    default: '15.2'
 runs:
   using: "composite"
   steps:
@@ -16,21 +12,3 @@ runs:
       uses: maxim-lobanov/setup-xcode@60606e260d2fc5762a71e64e74b2174e8ea3c8bd
       with:
         xcode-version: ${{ inputs.xcode-version }}
-    - name: Setup Platform ${{ inputs.platform }}
-      if: ${{ inputs.platform != 'macos' && inputs.platform != 'mac-catalyst' }}
-      shell: bash
-      run: |
-        # https://github.com/actions/runner-images/issues/12541
-        sudo xcodebuild -runFirstLaunch
-        sudo xcrun simctl list
-
-        # Install platform based on the platform
-        if [[ "${{ inputs.platform }}" == "xros" || "${{ inputs.platform }}" == "xros-simulator" ]]; then
-          sudo xcodebuild -downloadPlatform visionOS
-        elif [[ "${{ inputs.platform }}" == "tvos" || "${{ inputs.platform }}" == "tvos-simulator" ]]; then
-          sudo xcodebuild -downloadPlatform tvOS
-        else
-          sudo xcodebuild -downloadPlatform iOS
-        fi
-
-        sudo xcodebuild -runFirstLaunch

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

@@ -1,77 +1,89 @@
 name: test-ios-helloworld
 description: Test iOS Hello World
 inputs:
+  jsengine:
+    description: Which JavaScript engine to use. Must be one of "Hermes", "JSC".
+    default: Hermes
   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
   flavor:
     description: The flavor of the build. Must be one of "Debug", "Release".
     default: Debug
+  hermes-version:
+    description: The version of hermes
+    required: true
+  react-native-version:
+    description: The version of react-native
+    required: true
 runs:
   using: composite
   steps:
     - name: Setup xcode
       uses: ./.github/actions/setup-xcode
-      with:
-        platform: ios
     - name: Setup node.js
       uses: ./.github/actions/setup-node
-    - name: Run yarn install
+    - name: Create Hermes folder
+      shell: bash
+      run: mkdir -p "$HERMES_WS_DIR"
+    - name: Download Hermes
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-darwin-bin-${{ inputs.flavor }}
+        path: /tmp/hermes/hermes-runtime-darwin/
+    - 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
+      uses: ruby/setup-ruby@v1.170.0
       with:
         ruby-version: ${{ inputs.ruby-version }}
-    - name: Set nightly Hermes versions
+    - name: Install iOS dependencies - Configuration ${{ inputs.flavor }}; New Architecture ${{ inputs.architecture }}; JS Engine ${{ inputs.jsengine }}
       shell: bash
       run: |
-        node ./scripts/releases/use-hermes-nightly.js
-    - name: Run yarn install again, with the correct hermes version
-      uses: ./.github/actions/yarn-install
-    - name: Download ReactNativeDependencies
-      uses: actions/download-artifact@v4
-      with:
-        name: ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz
-        path: /tmp/third-party
-    - 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 }};
-      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
 
-        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 [[ ${{ inputs.jsengine }} == "JSC" ]]; then
+          args+=(--jsvm jsc)
+          yarn bootstrap ios "${args[@]}" | cat
+        else
+          # Tarball is restored with capital flavors suffix, but somehow the tarball name from JS at line 96 returns as lowercased.
+          # Let's ensure that the tarballs have the right names
 
-        yarn bootstrap ios "${args[@]}" | cat
+          if [[ -f "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Debug.tar.gz" ]]; then
+            mv "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Debug.tar.gz" "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-debug.tar.gz"
+          fi
 
-    - name: Run Helloworld tests
+          if [[ -f "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Release.tar.gz" ]]; then
+            mv "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Release.tar.gz" "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-release.tar.gz"
+          fi
+
+          BUILD_TYPE="${{ inputs.flavor }}"
+          TARBALL_FILENAME=$(node ../react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")
+          HERMES_PATH="$HERMES_WS_DIR/hermes-runtime-darwin/$TARBALL_FILENAME"
+          HERMES_ENGINE_TARBALL_PATH="$HERMES_PATH" yarn bootstrap ios "${args[@]}" | cat
+        fi
+    - name: Build HelloWorld  project
       shell: bash
       run: |
-        cd private/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

@@ -1,18 +1,33 @@
 name: test-ios-rntester
 description: Test iOS RNTester
 inputs:
+  jsengine:
+    description: Which JavaScript engine to use. Must be one of "Hermes", "JSC".
+    default: Hermes
   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
   run-unit-tests:
     description: whether unit tests should run or not.
     default: "false"
+  hermes-tarball-artifacts-dir:
+    description: The directory where the hermes tarball artifacts are stored
+    default: /tmp/hermes/hermes-runtime-darwin
   flavor:
     description: The flavor of the build. Must be one of "Debug", "Release".
     default: Debug
+  hermes-version:
+    description: The version of hermes
+    required: true
+  react-native-version:
+    description: The version of react-native
+    required: true
   run-e2e-tests:
     description: Whether we want to run E2E tests or not
     required: false
@@ -23,55 +38,85 @@ runs:
   steps:
     - name: Setup xcode
       uses: ./.github/actions/setup-xcode
-      with:
-        platform: ios
     - name: Setup node.js
       uses: ./.github/actions/setup-node
     - name: Run yarn
       uses: ./.github/actions/yarn-install
+    - name: Download Hermes
+      uses: actions/download-artifact@v4
+      with:
+        name: hermes-darwin-bin-${{ inputs.flavor }}
+        path: ${{ inputs.hermes-tarball-artifacts-dir }}
     - name: Setup ruby
-      uses: ruby/setup-ruby@v1
+      uses: ruby/setup-ruby@v1.170.0
       with:
         ruby-version: ${{ inputs.ruby-version }}
-    - name: Set nightly Hermes versions
-      shell: bash
-      run: |
-        node ./scripts/releases/use-hermes-nightly.js
-    - name: Run yarn install again, with the correct hermes version
-      uses: ./.github/actions/yarn-install
     - name: Prepare IOS Tests
       if: ${{ inputs.run-unit-tests == 'true' }}
       uses: ./.github/actions/prepare-ios-tests
-    - name: Download ReactNativeDependencies
-      uses: actions/download-artifact@v4
-      with:
-        name: ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz
-        path: /tmp/third-party/
-    - name: Print third-party folder
+    - name: Set HERMES_ENGINE_TARBALL_PATH envvar if Hermes tarball is present
       shell: bash
-      run: ls -lR /tmp/third-party
-    - name: Download React Native Prebuilds
-      uses: actions/download-artifact@v4
-      with:
-        name: ReactCore${{ inputs.flavor }}.xcframework.tar.gz
-        path: /tmp/ReactCore
-    - name: Print ReactCore folder
+      run: |
+        HERMES_TARBALL_ARTIFACTS_DIR=${{ inputs.hermes-tarball-artifacts-dir }}
+        if [ ! -d $HERMES_TARBALL_ARTIFACTS_DIR ]; then
+          echo "Hermes tarball artifacts dir not present ($HERMES_TARBALL_ARTIFACTS_DIR). Build Hermes from source."
+          exit 0
+        fi
+
+        TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ inputs.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" >> $GITHUB_ENV
+    - name: Print Hermes version
       shell: bash
-      run: ls -lR /tmp/ReactCore
+      run: |
+        HERMES_TARBALL_ARTIFACTS_DIR=${{ inputs.hermes-tarball-artifacts-dir }}
+        TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ inputs.flavor }}")
+        TARBALL_PATH=$HERMES_TARBALL_ARTIFACTS_DIR/$TARBALL_FILENAME
+        if [[ -e $TARBALL_PATH ]]; then
+          tar -xf $TARBALL_PATH
+          echo 'print(HermesInternal?.getRuntimeProperties?.()["OSS Release Version"])' > test.js
+          chmod +x ./destroot/bin/hermes
+          ./destroot/bin/hermes test.js
+          rm test.js
+          rm -rf destroot
+        else
+          echo 'No Hermes tarball found.'
+        fi
+    - name: Setup xcode build cache
+      uses: ./.github/actions/setup-xcode-build-cache
+      with:
+        hermes-version: ${{ inputs.hermes-version }}
     - name: Install CocoaPods dependencies
       shell: bash
       run: |
-        export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
-        export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
+        if [[ ${{ inputs.jsengine }} == "JSC" ]]; then
+          export USE_HERMES=0
+        else
+          export HERMES_ENGINE_TARBALL_PATH=$HERMES_ENGINE_TARBALL_PATH
+        fi
 
         if [[ ${{ inputs.use-frameworks }} == "DynamicFrameworks" ]]; then
           export USE_FRAMEWORKS=dynamic
         fi
 
+        if [[ ${{ inputs.architecture }} == "OldArch" ]]; then
+          export RCT_NEW_ARCH_ENABLED=0
+        fi
+
         cd packages/rn-tester
 
         bundle install
-        bundle exec pod update hermes-engine --no-repo-update
+        bundle exec pod install
     - name: Build RNTester
       shell: bash
       run: |
@@ -111,7 +156,7 @@ 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.jsengine }}-${{ 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 +1,46 @@
+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 }}
+
+    - 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
+    - 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__/createDraftRelease-test.js

@@ -1,374 +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
- */
-
-const {
-  _verifyTagExists,
-  _extractChangelog,
-  _computeBody,
-  _createDraftReleaseOnGitHub,
-} = require('../createDraftRelease');
-
-const fs = require('fs');
-
-const silence = () => {};
-const mockFetch = jest.fn();
-
-jest.mock('../utils.js', () => ({
-  log: silence,
-}));
-
-global.fetch = mockFetch;
-
-describe('Create Draft Release', () => {
-  beforeEach(jest.clearAllMocks);
-
-  describe('#_verifyTagExists', () => {
-    it('throws if the tag does not exists', async () => {
-      const token = 'token';
-      mockFetch.mockReturnValueOnce(Promise.resolve({status: 404}));
-
-      await expect(_verifyTagExists('0.77.1')).rejects.toThrowError(
-        `Tag v0.77.1 does not exist`,
-      );
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        'https://github.com/facebook/react-native/releases/tag/v0.77.1',
-      );
-    });
-  });
-
-  describe('#_extractChangelog', () => {
-    it(`extracts changelog from CHANGELOG.md`, async () => {
-      const mockedReturnValue = `# Changelog
-
-## v0.77.2
-
-- [PR #1234](https://github.com/facebook/react-native/pull/1234) - Some change
-- [PR #5678](https://github.com/facebook/react-native/pull/5678) - Some other change
-
-
-## v0.77.1
-### Breaking Changes
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
-
-#### iOS
-- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
-
-### Fixed
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-
-#### iOS
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
-
-
-## v0.77.0
-
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-
-## v0.76.0
-
-- [PR #7890](https://github.com/facebook/react-native/pull/7890) - Some other change`;
-
-      jest.spyOn(fs, 'readFileSync').mockImplementationOnce(func => {
-        return mockedReturnValue;
-      });
-      const changelog = _extractChangelog('0.77.1');
-      expect(changelog).toEqual(`## v0.77.1
-### Breaking Changes
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
-
-#### iOS
-- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
-
-### Fixed
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-
-#### iOS
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`);
-    });
-
-    it('does not extract changelog for rc.0', async () => {
-      const changelog = _extractChangelog('0.77.0-rc.0');
-      expect(changelog).toEqual('');
-    });
-
-    it('does not extract changelog for 0.X.0', async () => {
-      const changelog = _extractChangelog('0.77.0');
-      expect(changelog).toEqual('');
-    });
-  });
-
-  describe('#_computeBody', () => {
-    it('computes body for release when no hermes versions are passed', async () => {
-      const version = '0.77.1';
-      const changelog = `## v${version}
-### Breaking Changes
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
-
-#### iOS
-- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`;
-      const body = _computeBody(changelog, version);
-
-      expect(body).toEqual(`${changelog}
-
----
-
-Hermes dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${version}/hermes-ios-${version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${version}/hermes-ios-${version}-hermes-framework-dSYM-release.tar.gz)
-
-Hermes V1 dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${version}/hermes-ios-${version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${version}/hermes-ios-${version}-hermes-framework-dSYM-release.tar.gz)
-
-ReactNativeDependencies dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-release.tar.gz)
-
-ReactNative Core dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-release.tar.gz)
-
----
-
-You can file issues or pick requests against this release [here](https://github.com/reactwg/react-native-releases/issues/new/choose).
-
----
-
-To help you upgrade to this version, you can use the [Upgrade Helper](https://react-native-community.github.io/upgrade-helper/) ⚛️.
-
----
-
-View the whole changelog in the [CHANGELOG.md file](https://github.com/facebook/react-native/blob/main/CHANGELOG.md).`);
-    });
-
-    it('computes body for release when hermes versions are passed', async () => {
-      const version = '0.77.1';
-      const hermesVersion = '0.15.0';
-      const hermesV1Version = '250829098.0.2';
-      const changelog = `## v${version}
-### Breaking Changes
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
-
-#### iOS
-- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`;
-      const body = _computeBody(
-        changelog,
-        version,
-        hermesVersion,
-        hermesV1Version,
-      );
-
-      expect(body).toEqual(`${changelog}
-
----
-
-Hermes dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesVersion}/hermes-ios-${hermesVersion}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesVersion}/hermes-ios-${hermesVersion}-hermes-framework-dSYM-release.tar.gz)
-
-Hermes V1 dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesV1Version}/hermes-ios-${hermesV1Version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesV1Version}/hermes-ios-${hermesV1Version}-hermes-framework-dSYM-release.tar.gz)
-
-ReactNativeDependencies dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-release.tar.gz)
-
-ReactNative Core dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-release.tar.gz)
-
----
-
-You can file issues or pick requests against this release [here](https://github.com/reactwg/react-native-releases/issues/new/choose).
-
----
-
-To help you upgrade to this version, you can use the [Upgrade Helper](https://react-native-community.github.io/upgrade-helper/) ⚛️.
-
----
-
-View the whole changelog in the [CHANGELOG.md file](https://github.com/facebook/react-native/blob/main/CHANGELOG.md).`);
-    });
-  });
-
-  describe('#_createDraftReleaseOnGitHub', () => {
-    it('creates a draft release on GitHub', async () => {
-      const version = '0.77.1';
-      const url = 'https://api.github.com/repos/facebook/react-native/releases';
-      const token = 'token';
-      const headers = {
-        Accept: 'Accept: application/vnd.github+json',
-        'X-GitHub-Api-Version': '2022-11-28',
-        Authorization: `Bearer ${token}`,
-      };
-      const body = `Draft release body`;
-      const latest = true;
-      const fetchBody = JSON.stringify({
-        tag_name: `v${version}`,
-        name: `${version}`,
-        body: body,
-        draft: true,
-        prerelease: false,
-        make_latest: `${latest}`,
-      });
-
-      mockFetch.mockReturnValueOnce(
-        Promise.resolve({
-          status: 201,
-          json: () =>
-            Promise.resolve({
-              id: 1,
-              html_url:
-                'https://github.com/facebook/react-native/releases/tag/v0.77.1',
-            }),
-        }),
-      );
-      const response = await _createDraftReleaseOnGitHub(
-        version,
-        body,
-        latest,
-        token,
-      );
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        `https://api.github.com/repos/facebook/react-native/releases`,
-        {
-          method: 'POST',
-          headers: headers,
-          body: fetchBody,
-        },
-      );
-      expect(response).toEqual({
-        id: 1,
-        html_url:
-          'https://github.com/facebook/react-native/releases/tag/v0.77.1',
-      });
-    });
-
-    it('creates a draft release for prerelease on GitHub', async () => {
-      const version = '0.77.0-rc.2';
-      const url = 'https://api.github.com/repos/facebook/react-native/releases';
-      const token = 'token';
-      const headers = {
-        Accept: 'Accept: application/vnd.github+json',
-        'X-GitHub-Api-Version': '2022-11-28',
-        Authorization: `Bearer ${token}`,
-      };
-      const body = `Draft release body`;
-      const latest = true;
-      const fetchBody = JSON.stringify({
-        tag_name: `v${version}`,
-        name: `${version}`,
-        body: body,
-        draft: true,
-        prerelease: true,
-        make_latest: `${latest}`,
-      });
-
-      mockFetch.mockReturnValueOnce(
-        Promise.resolve({
-          status: 201,
-          json: () =>
-            Promise.resolve({
-              id: 1,
-              html_url:
-                'https://github.com/facebook/react-native/releases/tag/v0.77.1',
-            }),
-        }),
-      );
-      const response = await _createDraftReleaseOnGitHub(
-        version,
-        body,
-        latest,
-        token,
-      );
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        `https://api.github.com/repos/facebook/react-native/releases`,
-        {
-          method: 'POST',
-          headers: headers,
-          body: fetchBody,
-        },
-      );
-      expect(response).toEqual({
-        id: 1,
-        html_url:
-          'https://github.com/facebook/react-native/releases/tag/v0.77.1',
-      });
-    });
-
-    it('throws if the post failes', async () => {
-      const version = '0.77.0-rc.2';
-      const url = 'https://api.github.com/repos/facebook/react-native/releases';
-      const token = 'token';
-      const headers = {
-        Accept: 'Accept: application/vnd.github+json',
-        'X-GitHub-Api-Version': '2022-11-28',
-        Authorization: `Bearer ${token}`,
-      };
-      const body = `Draft release body`;
-      const latest = true;
-      const fetchBody = JSON.stringify({
-        tag_name: `v${version}`,
-        name: `${version}`,
-        body: body,
-        draft: true,
-        prerelease: true,
-        make_latest: `${latest}`,
-      });
-
-      mockFetch.mockReturnValueOnce(
-        Promise.resolve({
-          status: 401,
-        }),
-      );
-      await expect(
-        _createDraftReleaseOnGitHub(version, body, latest, token),
-      ).rejects.toThrowError();
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        `https://api.github.com/repos/facebook/react-native/releases`,
-        {
-          method: 'POST',
-          headers: headers,
-          body: fetchBody,
-        },
-      );
-    });
-  });
-});

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

@@ -1,83 +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
- */
-
-const {extractIssueOncalls} = require('../extractIssueOncalls');
-
-const userMap = {
-  '@g': '1785',
-  '@c': '1781',
-  '@s': '1272',
-  '@d': '1332',
-  '@m': '9555',
-  '@p': '6097',
-  '@f': '7565',
-};
-
-const schedule = {
-  '2025-04-01': ['@m', '@f'],
-  '2025-04-08': ['@g', '@d'],
-};
-
-describe('extractIssueOncalls', () => {
-  beforeEach(() => {
-    jest.clearAllMocks();
-    jest.useFakeTimers('modern');
-  });
-
-  afterEach(() => {
-    jest.useRealTimers();
-  });
-  it('extracts m and f on 6 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 6));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@m'], userMap['@f']]);
-  });
-
-  it('extracts m and f on 7 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 7));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@m'], userMap['@f']]);
-  });
-
-  it('extracts g and d on 8 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 8));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-
-  it('extracts g and d on 9 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 9));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-
-  it('extracts g and d on 10 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 10));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-
-  it('extracts g and d on 11 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 11));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-
-  it('extracts g and d on 12 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 12));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-
-  it('extracts g and d on 13 of April', () => {
-    jest.setSystemTime(new Date(2025, 3, 13));
-    const oncalls = extractIssueOncalls(schedule, userMap);
-    expect(oncalls).toEqual([userMap['@g'], userMap['@d']]);
-  });
-});

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

@@ -1,251 +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
- */
-
-const {
-  generateChangelog,
-  _computePreviousVersionFrom,
-  _generateChangelog,
-  _pushCommit,
-  _createPR,
-} = require('../generateChangelog');
-
-const silence = () => {};
-const mockGetNpmPackageInfo = jest.fn();
-const mockExecSync = jest.fn();
-const mockRun = jest.fn();
-const mockFetch = jest.fn();
-const mockExit = jest.fn();
-
-jest.mock('../utils.js', () => ({
-  log: silence,
-  run: mockRun,
-  getNpmPackageInfo: mockGetNpmPackageInfo,
-}));
-
-process.exit = mockExit;
-global.fetch = mockFetch;
-
-describe('Generate Changelog', () => {
-  beforeEach(jest.clearAllMocks);
-
-  describe('_computePreviousVersionFrom', () => {
-    it('returns rc.0 when rc is 1', async () => {
-      const currentVersion = '0.78.0-rc.1';
-      const expectedVersion = '0.78.0-rc.0';
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toEqual(expectedVersion);
-    });
-
-    it('returns previous rc version when rc is > 1', async () => {
-      const currentVersion = '0.78.0-rc.5';
-      const expectedVersion = '0.78.0-rc.4';
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toEqual(expectedVersion);
-    });
-
-    it('returns previous patch version when rc is 0', async () => {
-      const currentVersion = '0.78.0-rc.0';
-      const expectedVersion = '0.77.1';
-
-      mockGetNpmPackageInfo.mockReturnValueOnce(
-        Promise.resolve({version: '0.77.1'}),
-      );
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toEqual(expectedVersion);
-    });
-
-    it('returns patch 0 when patch is 1', async () => {
-      const currentVersion = '0.78.1';
-      const expectedVersion = '0.78.0';
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toEqual(expectedVersion);
-    });
-
-    it('returns previous patch when patch is > 1', async () => {
-      const currentVersion = '0.78.5';
-      const expectedVersion = '0.78.4';
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toEqual(expectedVersion);
-    });
-
-    it('returns null when patch is 0', async () => {
-      const currentVersion = '0.78.0';
-
-      const receivedVersion = await _computePreviousVersionFrom(currentVersion);
-
-      expect(receivedVersion).toBeNull();
-    });
-
-    it("throws an error when the version can't be parsed", async () => {
-      const currentVersion = '0.78.0-rc0';
-
-      await expect(
-        _computePreviousVersionFrom(currentVersion),
-      ).rejects.toThrow();
-    });
-  });
-
-  describe('_generateChangelog', () => {
-    it('calls git in the right order', async () => {
-      const currentVersion = '0.79.0-rc5';
-      const previousVersion = '0.79.0-rc4';
-      const token = 'token';
-
-      expectedCommandArgs = [
-        '@rnx-kit/rn-changelog-generator',
-        '--base',
-        `v${previousVersion}`,
-        '--compare',
-        `v${currentVersion}`,
-        '--repo',
-        '.',
-        '--changelog',
-        './CHANGELOG.md',
-        '--token',
-        `${token}`,
-      ];
-
-      _generateChangelog(previousVersion, currentVersion, token);
-
-      expect(mockRun).toHaveBeenCalledTimes(4);
-      expect(mockRun).toHaveBeenNthCalledWith(1, 'git checkout main');
-      expect(mockRun).toHaveBeenNthCalledWith(2, 'git fetch');
-      expect(mockRun).toHaveBeenNthCalledWith(3, 'git pull origin main');
-      expect(mockRun).toHaveBeenNthCalledWith(
-        4,
-        `npx ${expectedCommandArgs.join(' ')}`,
-      );
-    });
-  });
-
-  describe('_pushCommit', () => {
-    it('calls git in the right order', async () => {
-      const currentVersion = '0.79.0-rc5';
-
-      _pushCommit(currentVersion);
-
-      expect(mockRun).toHaveBeenCalledTimes(4);
-      expect(mockRun).toHaveBeenNthCalledWith(
-        1,
-        `git checkout -b changelog/v${currentVersion}`,
-      );
-      expect(mockRun).toHaveBeenNthCalledWith(2, 'git add CHANGELOG.md');
-      expect(mockRun).toHaveBeenNthCalledWith(
-        3,
-        `git commit -m "[RN][Changelog] Add changelog for v${currentVersion}"`,
-      );
-      expect(mockRun).toHaveBeenNthCalledWith(
-        4,
-        `git push origin changelog/v${currentVersion}`,
-      );
-    });
-  });
-
-  describe('_createPR', () => {
-    it('throws error when status is not 201', async () => {
-      const currentVersion = '0.79.0-rc5';
-      const token = 'token';
-
-      mockFetch.mockReturnValueOnce(Promise.resolve({status: 401}));
-
-      const headers = {
-        Accept: 'Accept: application/vnd.github+json',
-        'X-GitHub-Api-Version': '2022-11-28',
-        Authorization: `Bearer ${token}`,
-      };
-
-      const content = `
-## Summary
-Add Changelog for ${currentVersion}
-
-## Changelog:
-[Internal] - Add Changelog for ${currentVersion}
-
-## Test Plan:
-N/A`;
-
-      const body = {
-        title: `[RN][Changelog] Add changelog for v${currentVersion}`,
-        head: `changelog/v${currentVersion}`,
-        base: 'main',
-        body: content,
-      };
-
-      await expect(_createPR(currentVersion, token)).rejects.toThrow();
-
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        'https://api.github.com/repos/facebook/react-native/pulls',
-        {
-          method: 'POST',
-          headers: headers,
-          body: JSON.stringify(body),
-        },
-      );
-    });
-    it('Returns the pr url', async () => {
-      const currentVersion = '0.79.0-rc5';
-      const token = 'token';
-      const expectedPrURL =
-        'https://github.com/facebook/react-native/pulls/1234';
-
-      const returnedObject = {
-        status: 201,
-        json: () => Promise.resolve({html_url: expectedPrURL}),
-      };
-      mockFetch.mockReturnValueOnce(Promise.resolve(returnedObject));
-
-      const headers = {
-        Accept: 'Accept: application/vnd.github+json',
-        'X-GitHub-Api-Version': '2022-11-28',
-        Authorization: `Bearer ${token}`,
-      };
-
-      const content = `
-## Summary
-Add Changelog for ${currentVersion}
-
-## Changelog:
-[Internal] - Add Changelog for ${currentVersion}
-
-## Test Plan:
-N/A`;
-
-      const body = {
-        title: `[RN][Changelog] Add changelog for v${currentVersion}`,
-        head: `changelog/v${currentVersion}`,
-        base: 'main',
-        body: content,
-      };
-
-      const receivedPrURL = await _createPR(currentVersion, token);
-
-      expect(mockFetch).toHaveBeenCalledTimes(1);
-      expect(mockFetch).toHaveBeenCalledWith(
-        'https://api.github.com/repos/facebook/react-native/pulls',
-        {
-          method: 'POST',
-          headers: headers,
-          body: JSON.stringify(body),
-        },
-      );
-      expect(receivedPrURL).toEqual(expectedPrURL);
-    });
-  });
-});

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

@@ -22,11 +22,8 @@ jest.mock('../utils.js', () => ({
   log: silence,
   run: mockRun,
   sleep: mockSleep,
-  getNpmPackageInfo: mockGetNpmPackageInfo,
-}));
-
-jest.mock('../verifyPublishedPackage.js', () => ({
   verifyPublishedPackage: mockVerifyPublishedPackage,
+  getNpmPackageInfo: mockGetNpmPackageInfo,
 }));
 
 const getMockGithub = () => ({
@@ -117,13 +114,13 @@ 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

@@ -1,87 +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
- */
-
-const {verifyArtifactsAreOnMaven} = require('../verifyArtifactsAreOnMaven');
-
-const mockSleep = jest.fn();
-const silence = () => {};
-const mockFetch = jest.fn();
-const mockExit = jest.fn();
-
-jest.mock('../utils.js', () => ({
-  log: silence,
-  sleep: mockSleep,
-}));
-
-process.exit = mockExit;
-global.fetch = mockFetch;
-
-describe('#verifyArtifactsAreOnMaven', () => {
-  beforeEach(jest.clearAllMocks);
-
-  it('waits for the packages to be published on maven when version has no v', async () => {
-    mockSleep.mockReturnValueOnce(Promise.resolve()).mockImplementation(() => {
-      throw new Error('Should not be called again!');
-    });
-    mockFetch
-      .mockReturnValueOnce(Promise.resolve({status: 404}))
-      .mockReturnValueOnce(Promise.resolve({status: 200}));
-
-    const version = '0.78.1';
-    await verifyArtifactsAreOnMaven(version);
-
-    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',
-    );
-  });
-
-  it('waits for the packages to be published on maven, when version starts with v', async () => {
-    mockSleep.mockReturnValueOnce(Promise.resolve()).mockImplementation(() => {
-      throw new Error('Should not be called again!');
-    });
-    mockFetch
-      .mockReturnValueOnce(Promise.resolve({status: 404}))
-      .mockReturnValueOnce(Promise.resolve({status: 200}));
-
-    const version = 'v0.78.1';
-    await verifyArtifactsAreOnMaven(version);
-
-    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',
-    );
-  });
-
-  it('passes immediately if packages are already on Maven', async () => {
-    mockFetch.mockReturnValueOnce(Promise.resolve({status: 200}));
-
-    const version = '0.78.1';
-    await verifyArtifactsAreOnMaven(version);
-
-    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',
-    );
-  });
-
-  it('tries 90 times and then exits', async () => {
-    mockSleep.mockReturnValue(Promise.resolve());
-    mockFetch.mockReturnValue(Promise.resolve({status: 404}));
-
-    const version = '0.78.1';
-    await verifyArtifactsAreOnMaven(version);
-
-    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',
-    );
-  });
-});

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

@@ -13,11 +13,6 @@ const mockVerifyPublishedPackage = jest.fn();
 const silence = () => {};
 
 jest.mock('../utils.js', () => ({
-  log: silence,
-  sleep: silence,
-}));
-
-jest.mock('../verifyPublishedPackage.js', () => ({
   verifyPublishedPackage: mockVerifyPublishedPackage,
 }));
 
@@ -83,13 +78,13 @@ 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/actOnLabel.js

@@ -95,6 +95,12 @@ module.exports = async (github, context, labelWithContext) => {
       );
       await requestAuthorFeedback();
       return;
+    case 'Newer Patch Available':
+      await addComment(
+        `> [!TIP]\n` +
+          `> **Newer version available**: You are on a supported minor version, but it looks like there's a newer patch available - ${labelWithContext.newestPatch}. Please [upgrade](https://reactnative.dev/docs/upgrading) to the highest patch for your minor or latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If it does not repro, please let us know so we can close out this issue. This helps us ensure we are looking at issues that still exist in the most recent releases.`,
+      );
+      return;
     case 'Needs: Version Info':
       await addComment(
         `> [!WARNING]\n` +
@@ -105,7 +111,7 @@ module.exports = async (github, context, labelWithContext) => {
     case 'Needs: Repro':
       await addComment(
         `> [!WARNING]\n` +
-          `> **Missing reproducer**: We could not detect a reproducible example in your issue report. Reproducers are **mandatory** and we can accept only one of those as a valid reproducer: <br/><ul><li>For majority of bugs: send us a Pull Request with the [RNTesterPlayground.js](https://github.com/facebook/react-native/blob/main/packages/rn-tester/js/examples/Playground/RNTesterPlayground.js) edited to reproduce your bug.</li><li>If your bug is UI related: a [Snack](https://snack.expo.dev)</li><li> If your bug is build/upgrade related: a project using our [Reproducer Template](https://github.com/react-native-community/reproducer-react-native/generate)</li></ul><br/>You can read more about about it on our website: [How to report a bug](https://reactnative.dev/contributing/how-to-report-a-bug).`,
+          `> **Missing reproducer**: We could not detect a reproducible example in your issue report. Please provide either: <br/><ul><li>If your bug is UI related: a [Snack](https://snack.expo.dev)</li><li> If your bug is build/upgrade related: a project using our [Reproducer Template](https://github.com/react-native-community/reproducer-react-native/generate)</li><li>Otherwise send us a Pull Request with the [RNTesterPlayground.js](https://github.com/facebook/react-native/blob/main/packages/rn-tester/js/examples/Playground/RNTesterPlayground.js) edited to reproduce your bug.</li></ul>`,
       );
       await requestAuthorFeedback();
       return;

.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/checkForReproducer.js

@@ -41,11 +41,6 @@ module.exports = async (github, context) => {
 
   // Look for Snack or a GH repo associated with the user that added an issue or comment
   const hasValidReproducer = entities.some(entity => {
-    const hasPullRequestRepoLink = containsPattern(
-      entity.body,
-      `https?:\/\/github\.com\/facebook\/react-native\/pull\/\d+\/?`,
-    );
-
     const hasExpoSnackLink = containsPattern(
       entity.body,
       `https?:\\/\\/snack\\.expo\\.dev\\/[^\\s)\\]]+`,
@@ -55,7 +50,7 @@ module.exports = async (github, context) => {
       entity.body,
       `https?:\\/\\/github\\.com\\/(${entity.user.login})\\/[^/]+\\/?\\s?`,
     );
-    return hasPullRequestRepoLink || hasExpoSnackLink || hasGithubRepoLink;
+    return hasExpoSnackLink || hasGithubRepoLink;
   });
 
   if (hasValidReproducer) {

.github/workflow-scripts/createDraftRelease.js

@@ -1,158 +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
- */
-
-const {log, run} = require('./utils');
-const fs = require('fs');
-
-function _headers(token) {
-  return {
-    Accept: 'Accept: application/vnd.github+json',
-    'X-GitHub-Api-Version': '2022-11-28',
-    Authorization: `Bearer ${token}`,
-  };
-}
-
-function _extractChangelog(version) {
-  if (version.endsWith('.0')) {
-    // for RC.0 and for the release of a new stable minor, the changelog is too long
-    // to be added in a release. The release body is usually something shorter.
-    // See for example the release for 0.76.0 or 0.77.0:
-    // 0.76: https://github.com/facebook/react-native/releases/tag/v0.76.0
-    // 0.77: https://github.com/facebook/react-native/releases/tag/v0.77.0
-    return '';
-  }
-  const changelog = String(fs.readFileSync('CHANGELOG.md', 'utf8')).split('\n');
-  const changelogStarts = changelog.indexOf(`## v${version}`);
-  let changelogEnds = changelogStarts;
-  // Scan the changelog to find the next version
-  for (var line = changelogStarts + 1; line < changelog.length; line++) {
-    if (changelog[line].startsWith('## ')) {
-      changelogEnds = line;
-      break;
-    }
-  }
-  return changelog.slice(changelogStarts, changelogEnds).join('\n').trim();
-}
-
-function _computeBody(changelog, version, hermesVersion, hermesV1Version) {
-  hermesVersion = hermesVersion ?? version;
-  hermesV1Version = hermesV1Version ?? version;
-  return `${changelog}
-
----
-
-Hermes dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesVersion}/hermes-ios-${hermesVersion}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesVersion}/hermes-ios-${hermesVersion}-hermes-framework-dSYM-release.tar.gz)
-
-Hermes V1 dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesV1Version}/hermes-ios-${hermesV1Version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/hermes/hermes-ios/${hermesV1Version}/hermes-ios-${hermesV1Version}-hermes-framework-dSYM-release.tar.gz)
-
-ReactNativeDependencies dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-release.tar.gz)
-
-ReactNative Core dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-core-release.tar.gz)
-
----
-
-You can file issues or pick requests against this release [here](https://github.com/reactwg/react-native-releases/issues/new/choose).
-
----
-
-To help you upgrade to this version, you can use the [Upgrade Helper](https://react-native-community.github.io/upgrade-helper/) ⚛️.
-
----
-
-View the whole changelog in the [CHANGELOG.md file](https://github.com/facebook/react-native/blob/main/CHANGELOG.md).`;
-}
-
-async function _verifyTagExists(version) {
-  const url = `https://github.com/facebook/react-native/releases/tag/v${version}`;
-
-  const response = await fetch(url);
-  if (response.status === 404) {
-    throw new Error(`Tag v${version} does not exist`);
-  }
-}
-
-async function _createDraftReleaseOnGitHub(version, body, latest, token) {
-  const url = 'https://api.github.com/repos/facebook/react-native/releases';
-  const method = 'POST';
-  const headers = _headers(token);
-  const fetchBody = JSON.stringify({
-    tag_name: `v${version}`,
-    name: `${version}`,
-    body: body,
-    draft: true, // NEVER CHANGE this value to false. If false, it will publish the release, and send a GH notification to all the subscribers.
-    prerelease: version.includes('-rc.') ? true : false,
-    make_latest: `${latest}`,
-  });
-
-  const response = await fetch(url, {
-    method,
-    headers,
-    body: fetchBody,
-  });
-
-  if (response.status !== 201) {
-    throw new Error(
-      `Failed to create the release: ${response.status} ${response.statusText}`,
-    );
-  }
-
-  const data = await response.json();
-  const {html_url, id} = data;
-  return {
-    html_url,
-    id,
-  };
-}
-
-function moveToChangelogBranch(version) {
-  log(`Moving to changelog branch: changelog/v${version}`);
-  run(`git checkout -b changelog/v${version}`);
-}
-
-async function createDraftRelease(
-  version,
-  latest,
-  token,
-  hermesVersion,
-  hermesV1Version,
-) {
-  if (version.startsWith('v')) {
-    version = version.substring(1);
-  }
-
-  _verifyTagExists(version);
-  moveToChangelogBranch(version);
-  const changelog = _extractChangelog(version);
-  const body = _computeBody(changelog, version, hermesVersion, hermesV1Version);
-  const release = await _createDraftReleaseOnGitHub(
-    version,
-    body,
-    latest,
-    token,
-  );
-  log(`Created draft release: ${release.html_url}, ID ${release.id}`);
-  return release;
-}
-
-module.exports = {
-  createDraftRelease,
-  // Exported for testing purposes
-  _verifyTagExists,
-  _extractChangelog,
-  _computeBody,
-  _createDraftReleaseOnGitHub,
-};

.github/workflow-scripts/extractIssueOncalls.js

@@ -1,86 +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
- */
-
-const fs = require('fs');
-
-const MSEC_IN_DAY = 1000 * 60 * 60 * 24;
-
-function formatUsers(users) {
-  console.log(`${users[0]} ${users[1]}`.trim());
-}
-
-function extractUsersFromScheduleAndDate(schedule, userMap, date) {
-  const year = date.getFullYear();
-  const month = date.getMonth() + 1; // 0 is January, 1 is February
-  const day = date.getDate();
-  const dateStr = `${year}-${month < 10 ? `0${month}` : month}-${day < 10 ? `0${day}` : day}`;
-  const user1 = userMap[schedule[dateStr][0]];
-  const user2 = userMap[schedule[dateStr][1]];
-  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);
-  extractIssueOncalls(schedule, userMap);
-}
-
-function extractIssueOncalls(schedule, userMap) {
-  const now = new Date();
-  const dayOfTheWeek = now.getDay(); // 0 is Sunday, 1 is Monday, etc.
-  let users;
-  if (dayOfTheWeek === 2) {
-    // exact match in the schedule
-    users = extractUsersFromScheduleAndDate(schedule, userMap, now);
-  } else if (dayOfTheWeek < 2) {
-    // sunday
-    // go to the tuesday of the last week
-    const lastWeekTuesday = new Date(now - (5 + dayOfTheWeek) * MSEC_IN_DAY);
-    users = extractUsersFromScheduleAndDate(schedule, userMap, lastWeekTuesday);
-  } else if (dayOfTheWeek > 1) {
-    // go to the previous tuesday
-    const thisWeekTuesday = new Date(now - (dayOfTheWeek - 2) * MSEC_IN_DAY);
-    users = extractUsersFromScheduleAndDate(schedule, userMap, thisWeekTuesday);
-  }
-  formatUsers(users);
-  return users;
-}
-
-if (require.main === module) {
-  void main();
-}
-
-module.exports = {
-  extractIssueOncalls,
-};

.github/workflow-scripts/generateChangelog.js

@@ -1,120 +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
- */
-
-const {log, getNpmPackageInfo, run} = require('./utils');
-
-async function _computePreviousVersionFrom(version) {
-  log(`Computing previous version from: ${version}`);
-  const regex = /^0\.(\d+)\.(\d+)(-rc\.(\d+))?$/;
-  const match = version.match(regex);
-  if (!match) {
-    throw new Error(`Invalid version format: ${version}`);
-  }
-
-  const minor = match[1];
-  const patch = match[2];
-  const rc = match[4];
-
-  if (rc) {
-    if (Number(rc) > 0) {
-      return `0.${minor}.${patch}-rc.${Number(rc) - 1}`;
-    }
-    //fetch latest version on NPM
-    const latestPkg = await getNpmPackageInfo('react-native', 'latest');
-    return latestPkg.version;
-  } else {
-    if (Number(patch) === 0) {
-      // No need to generate the changelog for 0.X.0 as we already generated it from RCs
-      log(
-        `Skipping changelog generation for ${version} as we already have it from the RCs`,
-      );
-      return null;
-    }
-    return `0.${minor}.${Number(patch) - 1}`;
-  }
-}
-
-function _generateChangelog(previousVersion, version, token) {
-  log(`Generating changelog for ${version} from ${previousVersion}`);
-  run('git checkout main');
-  run('git fetch');
-  run('git pull origin main');
-  const generateChangelogComand = `npx @rnx-kit/rn-changelog-generator --base v${previousVersion} --compare v${version} --repo . --changelog ./CHANGELOG.md --token ${token}`;
-  run(generateChangelogComand);
-}
-
-function _pushCommit(version) {
-  log(`Pushing commit to changelog/v${version}`);
-  run(`git checkout -b changelog/v${version}`);
-  run('git add CHANGELOG.md');
-  run(`git commit -m "[RN][Changelog] Add changelog for v${version}"`);
-  run(`git push origin changelog/v${version}`);
-}
-
-async function _createPR(version, token) {
-  log('Creating changelog pr');
-  const url = 'https://api.github.com/repos/facebook/react-native/pulls';
-  const body = `
-## Summary
-Add Changelog for ${version}
-
-## Changelog:
-[Internal] - Add Changelog for ${version}
-
-## Test Plan:
-N/A`;
-
-  const response = await fetch(url, {
-    method: 'POST',
-    headers: {
-      Accept: 'Accept: application/vnd.github+json',
-      'X-GitHub-Api-Version': '2022-11-28',
-      Authorization: `Bearer ${token}`,
-    },
-    body: JSON.stringify({
-      title: `[RN][Changelog] Add changelog for v${version}`,
-      head: `changelog/v${version}`,
-      base: 'main',
-      body: body,
-    }),
-  });
-
-  if (response.status !== 201) {
-    throw new Error(
-      `Failed to create PR: ${response.status} ${response.statusText}`,
-    );
-  }
-
-  const data = await response.json();
-  return data.html_url;
-}
-
-async function generateChangelog(version, token) {
-  if (version.startsWith('v')) {
-    version = version.substring(1);
-  }
-
-  const previousVersion = await _computePreviousVersionFrom(version);
-  if (previousVersion) {
-    log(`Previous version is ${previousVersion}`);
-    _generateChangelog(previousVersion, version, token);
-    _pushCommit(version);
-    const prURL = await _createPR(version, token);
-    log(`Created PR: ${prURL}`);
-  }
-}
-
-module.exports = {
-  generateChangelog,
-  // Exported only for testing purposes:
-  _computePreviousVersionFrom,
-  _generateChangelog,
-  _pushCommit,
-  _createPR,
-};

.github/workflow-scripts/lint_files.sh

@@ -1,12 +0,0 @@
-#!/bin/bash
-# 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.
-
-set -e
-
-if git ls-files | grep -E '\.npmignore$'; then
-  echo "Error: Found unexpected .npmignore file(s). Please use package.json#files instead."
-  exit 1
-fi

.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, {
@@ -162,7 +162,7 @@ async function main() {
   console.info(`WORKING_DIRECTORY: ${WORKING_DIRECTORY}`);
   console.info('==============================\n');
 
-  const simulatorName = 'iPhone 16 Pro';
+  const simulatorName = 'iPhone 15 Pro';
   launchSimulator(simulatorName);
   installAppOnSimulator(APP_PATH);
   const udid = extractSimulatorUDID();

.github/workflow-scripts/publishTemplate.js

@@ -7,8 +7,7 @@
  * @format
  */
 
-const {run, sleep, log} = require('./utils.js');
-const {verifyPublishedPackage} = require('./verifyPublishedPackage.js');
+const {run, sleep, log, verifyPublishedPackage} = require('./utils.js');
 
 const TAG_AS_LATEST_REGEX = /#publish-packages-to-npm&latest/;
 
@@ -69,9 +68,6 @@ module.exports.verifyPublishedTemplate = async (
   retries = MAX_RETRIES,
 ) => {
   try {
-    if (version.startsWith('v')) {
-      version = version.slice(1);
-    }
     await verifyPublishedPackage(
       TEMPLATE_NPM_PKG,
       version,

.github/workflow-scripts/utils.js

@@ -9,7 +9,13 @@
 
 const {execSync} = require('child_process');
 
-const log = (...args) => console.log(...args);
+function run(cmd) {
+  return execSync(cmd, 'utf8').toString().trim();
+}
+
+async function sleep(seconds) {
+  return new Promise(resolve => setTimeout(resolve, seconds * 1000));
+}
 
 async function getNpmPackageInfo(pkg, versionOrTag) {
   return fetch(`https://registry.npmjs.org/${pkg}/${versionOrTag}`).then(resp =>
@@ -17,13 +23,7 @@ async function getNpmPackageInfo(pkg, versionOrTag) {
   );
 }
 
-async function sleep(seconds) {
-  return new Promise(resolve => setTimeout(resolve, seconds * 1000));
-}
-
-function run(cmd) {
-  return execSync(cmd, 'utf8').toString().trim();
-}
+const log = (...args) => console.log(...args);
 
 module.exports = {
   log,

.github/workflow-scripts/verifyArtifactsAreOnMaven.js

@@ -1,43 +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
- */
-
-const {log, sleep} = require('./utils');
-
-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`;
-  for (let currentAttempt = 1; currentAttempt <= retries; currentAttempt++) {
-    const response = await fetch(artifactUrl);
-
-    if (response.status !== 200) {
-      log(
-        `${currentAttempt}) Artifact's for version ${version} are not on maven yet.\nURL: ${artifactUrl}\nLet's wait a minute and try again.\n`,
-      );
-      await sleep(SLEEP_S);
-    } else {
-      return;
-    }
-  }
-
-  log(
-    `We waited 90 minutes for the artifacts to be on Maven. Check https://status.maven.org/ if there are issues wth the service.`,
-  );
-  process.exit(1);
-}
-
-module.exports = {verifyArtifactsAreOnMaven};

.github/workflow-scripts/verifyPublishedPackage.js

@@ -42,7 +42,7 @@ async function verifyPublishedPackage(
       }
 
       log(
-        `🐌 ${packageName}@${tag} → ${json.version} on npm and not ${version} as expected, retrying...`,
+        `🐌 ${packageName}@${tag} → ${pkg.version} on npm and not ${version} as expected, retrying...`,
       );
     } catch (e) {
       log(`Nope, fetch failed: ${e.message}`);

.github/workflow-scripts/verifyReleaseOnNpm.js

@@ -7,8 +7,7 @@
  * @format
  */
 
-const {run, sleep, log} = require('./utils.js');
-const {verifyPublishedPackage} = require('./verifyPublishedPackage.js');
+const {run, sleep, log, verifyPublishedPackage} = require('./utils.js');
 const REACT_NATIVE_NPM_PKG = 'react-native';
 const MAX_RETRIES = 3 * 6; // 18 attempts. Waiting between attempt: 10 s. Total time: 3 mins.
 /**
@@ -23,8 +22,5 @@ module.exports.verifyReleaseOnNpm = async (
   retries = MAX_RETRIES,
 ) => {
   const tag = version.includes('-rc.') ? 'next' : latest ? 'latest' : null;
-  if (version.startsWith('v')) {
-    version = version.slice(1);
-  }
   await verifyPublishedPackage(REACT_NATIVE_NPM_PKG, version, tag, retries);
 };

.github/workflow-scripts/verifyVersion.js

@@ -45,6 +45,18 @@ module.exports = async (github, context) => {
   if (!isVersionSupported(issueVersion, latestVersion)) {
     return {label: 'Type: Unsupported Version'};
   }
+
+  // We want to encourage users to repro the issue on the highest available patch for the given minor.
+  const latestPatchForVersion = getLatestPatchForVersion(
+    issueVersion,
+    recentReleases,
+  );
+  if (latestPatchForVersion > issueVersion.patch) {
+    return {
+      label: 'Newer Patch Available',
+      newestPatch: `${issueVersion.major}.${issueVersion.minor}.${latestPatchForVersion}`,
+    };
+  }
 };
 
 /**
@@ -75,6 +87,22 @@ function isVersionTooOld(actualVersion, latestVersion) {
   );
 }
 
+// Assumes that releases are sorted in the order of recency (i.e. most recent releases are earlier in the list)
+// This enables us to stop looking as soon as we find the first release with a matching major/minor version, since
+// we know it's the most recent release, therefore the highest patch available.
+function getLatestPatchForVersion(version, releases) {
+  for (releaseName of releases) {
+    const release = parseVersionFromString(releaseName);
+    if (
+      release &&
+      release.major == version.major &&
+      release.minor == version.minor
+    ) {
+      return release.patch;
+    }
+  }
+}
+
 function getReactNativeVersionFromIssueBodyIfExists(issue) {
   if (!issue || !issue.body) return;
   const rnVersionRegex = /React Native Version[\r\n]+(?<version>.+)[\r\n]*/;

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

@@ -1,45 +0,0 @@
-name: Bump Podfile.lock
-
-on:
-  workflow_call: # this directive allow us to call this workflow from other workflows
-
-jobs:
-  bump-podfile-lock:
-    runs-on: macos-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          fetch-tags: true
-      - name: Install dependencies
-        uses: ./.github/actions/yarn-install
-      - name: Configure git
-        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:
-          platform: 'ios'
-      - name: Extract branch name
-        run: |
-          TAG="${{ github.ref_name }}";
-          BRANCH_NAME=$(echo "$TAG" | sed -E 's/v([0-9]+\.[0-9]+)\.[0-9]+(-rc\.[0-9]+)?/\1-stable/')
-          echo "Branch Name is $BRANCH_NAME"
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-      - name: Checkout release branch
-        run: |
-          git checkout "$BRANCH_NAME"
-          git fetch
-          git pull origin "$BRANCH_NAME"
-      - name: Bump podfile.lock
-        run: |
-          cd packages/rn-tester
-          bundle install
-          bundle exec pod update hermes-engine --no-repo-update
-      - name: Commit changes
-        run: |
-          git add packages/rn-tester/Podfile.lock
-          git commit -m "[LOCAL] Bump Podfile.lock"
-          git push origin "$BRANCH_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 +1,32 @@
+# 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

.github/workflows/create-draft-release.yml

@@ -1,53 +0,0 @@
-name: Create Draft Release
-
-on:
-  workflow_call:
-    inputs:
-      hermesVersion:
-        required: false
-        type: string
-        description: The version of Hermes to use for this release (eg. 0.15.0). If not specified, it will use React Native Version
-      hermesV1Version:
-        required: false
-        type: string
-        description: The version of Hermes V1 to use for this release (eg. 250829098.0.2). If not specified, it will use React Native Version
-
-jobs:
-  create-draft-release:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          fetch-tags: true
-      - name: Install dependencies
-        uses: ./.github/actions/yarn-install
-      - name: Configure Git
-        shell: bash
-        run: |
-          git config --local user.email "bot@reactnative.dev"
-          git config --local user.name "React Native Bot"
-      - name: Create draft release
-        uses: actions/github-script@v6
-        id: create-draft-release
-        with:
-          script: |
-            const {createDraftRelease} = require('./.github/workflow-scripts/createDraftRelease.js');
-            const version = '${{ github.ref_name }}';
-            const {isLatest} = require('./.github/workflow-scripts/publishTemplate.js');
-            return (await createDraftRelease(version, isLatest(), '${{secrets.REACT_NATIVE_BOT_GITHUB_TOKEN}}', ${{ inputs.hermesVersion }}, ${{ inputs.hermesV1Version }})).id;
-          result-encoding: string
-      - name: Upload release assets for DotSlash
-        uses: actions/github-script@v6
-        env:
-          RELEASE_ID: ${{ steps.create-draft-release.outputs.result }}
-        with:
-          script: |
-            const {uploadReleaseAssetsForDotSlashFiles} = require('./scripts/releases/upload-release-assets-for-dotslash.js');
-            const version = '${{ github.ref_name }}';
-            await uploadReleaseAssetsForDotSlashFiles({
-              version,
-              token: '${{secrets.REACT_NATIVE_BOT_GITHUB_TOKEN}}',
-              releaseId: process.env.RELEASE_ID,
-            });

.github/workflows/create-release.yml

@@ -19,7 +19,6 @@ on:
 
 jobs:
   create_release:
-    if: github.repository == 'facebook/react-native'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout

.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/generate-changelog.yml

@@ -1,28 +0,0 @@
-name: Generate Changelog
-
-on:
-  workflow_call:
-
-jobs:
-  generate-changelog:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          fetch-tags: true
-      - name: Install dependencies
-        uses: ./.github/actions/yarn-install
-      - name: Configure Git
-        shell: bash
-        run: |
-          git config --local user.email "bot@reactnative.dev"
-          git config --local user.name "React Native Bot"
-      - name: Generate Changelog
-        uses: actions/github-script@v6
-        with:
-          script: |
-            const {generateChangelog} = require('./.github/workflow-scripts/generateChangelog');
-            const version = '${{ github.ref_name }}';
-            await generateChangelog(version, '${{secrets.REACT_NATIVE_BOT_GITHUB_TOKEN}}');

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

@@ -5,28 +5,14 @@ on:
     - cron: "0 0,6,12,18 * * *"
   workflow_dispatch:
 
-# Reminder for when we have to update the schedule (before Jan 2026):
-# the secrets.ONCALL_SCHEDULE secret must be on a single line and must have all the `"` escaped as `\"`.
-# Only a meta engineer can update it through the OSS internal portal.
-
 jobs:
   monitor-issues:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
       - name: Set up Node.js
-        uses: ./.github/actions/setup-node
-      - name: Install dependencies
-        uses:  ./.github/actions/yarn-install
-      - name: Extract next oncall
-        run: |
-          ONCALLS=$(node ./.github/workflow-scripts/extractIssueOncalls.js "${{ secrets.ONCALL_SCHEDULE }}")
-          ONCALL1=$(echo $ONCALLS | cut -d ' ' -f 1)
-          ONCALL2=$(echo $ONCALLS | cut -d ' ' -f 2)
-          echo "oncall1=$ONCALL1" >> $GITHUB_ENV
-          echo "oncall2=$ONCALL2" >> $GITHUB_ENV
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
       - name: Monitor New Issues
         uses: react-native-community/repo-monitor@v1.0.1
         with:
@@ -37,5 +23,5 @@ jobs:
           repo_owner: "facebook"
           repo_name: "react-native"
           discord_webhook_url: "${{ secrets.DISCORD_WEBHOOK_URL }}"
-          discord_id_type: "user"
-          discord_ids: "${{ env.oncall1 }},${{ env.oncall2 }}"
+          discord_id_type: "role"
+          discord_ids: "1339243367841927228"

.github/workflows/nightly.yml

@@ -21,21 +21,124 @@ jobs:
           echo "Setting release type to nightly"
           echo "RELEASE_TYPE=nightly" >> $GITHUB_OUTPUT
 
-  prebuild_apple_dependencies:
-    if: github.repository == 'facebook/react-native'
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
-    secrets: inherit
+  prepare_hermes_workspace:
+    runs-on: ubuntu-latest
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_VERSION_FILE: packages/react-native/sdks/.hermesversion
+    outputs:
+      react-native-version: ${{ steps.prepare-hermes-workspace.outputs.react-native-version }}
+      hermes-version: ${{ steps.prepare-hermes-workspace.outputs.hermes-version }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Prepare Hermes Workspace
+        id: prepare-hermes-workspace
+        uses: ./.github/actions/prepare-hermes-workspace
+        with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
+          hermes-version-file: ${{ env.HERMES_VERSION_FILE }}
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    with:
-      use-hermes-nightly: true
-    secrets: inherit
-    needs: [prebuild_apple_dependencies]
+  build_hermesc_apple:
+    runs-on: macos-13
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Apple
+        uses: ./.github/actions/build-hermesc-apple
+        with:
+          hermes-version: ${{ needs.prepare_hermes_workspace.output.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.output.react-native-version }}
+
+  build_apple_slices_hermes:
+    runs-on: macos-14
+    needs: [build_hermesc_apple, prepare_hermes_workspace]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+      HERMES_OSXBIN_ARTIFACTS_DIR: /tmp/hermes/osx-bin
+      IOS_DEPLOYMENT_TARGET: "15.1"
+      XROS_DEPLOYMENT_TARGET: "1.0"
+      MAC_DEPLOYMENT_TARGET: "10.15"
+    strategy:
+      fail-fast: false
+      matrix:
+        flavor: [Debug, Release]
+        slice: [macosx, iphoneos, iphonesimulator, appletvos, appletvsimulator, catalyst, xros, xrsimulator]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Slice
+        uses: ./.github/actions/build-apple-slices-hermes
+        with:
+          flavor: ${{ matrix.flavor }}
+          slice: ${{ matrix.slice}}
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_hermes_macos:
+    runs-on: macos-13
+    needs: [build_apple_slices_hermes, prepare_hermes_workspace]
+    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]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Hermes MacOS
+        uses: ./.github/actions/build-hermes-macos
+        with:
+          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.yml
+
+  build_hermesc_linux:
+    runs-on: ubuntu-latest
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Linux
+        uses: ./.github/actions/build-hermesc-linux
+        with:
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_hermesc_windows:
+    runs-on: windows-2019
+    needs: prepare_hermes_workspace
+    env:
+      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'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Windows
+        uses: ./.github/actions/build-hermesc-windows
+        with:
+          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
-    if: github.repository == 'facebook/react-native'
     needs: [set_release_type]
     container:
       image: reactnativecommunity/react-native-android:latest
@@ -60,9 +163,12 @@ jobs:
     needs:
       [
         set_release_type,
+        prepare_hermes_workspace,
+        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
@@ -72,6 +178,7 @@ jobs:
         # By default we only build ARM64 to save time/resources. For release/nightlies, we override this value to build all archs.
         ORG_GRADLE_PROJECT_reactNativeArchitectures: "arm64-v8a"
     env:
+      HERMES_WS_DIR: /tmp/hermes
       GHA_NPM_TOKEN: ${{ secrets.GHA_NPM_TOKEN }}
       ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
       ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
@@ -83,6 +190,7 @@ jobs:
       - name: Build and Publish NPM Package
         uses: ./.github/actions/build-npm-package
         with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
           gha-npm-token: ${{ env.GHA_NPM_TOKEN }}
           gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}

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

@@ -1,198 +0,0 @@
-name: Prebuild iOS Dependencies
-
-on:
-  workflow_call: # this directive allow us to call this workflow from other workflows
-    inputs:
-      use-hermes-nightly:
-        description: 'Whether to use the hermes nightly build or read the version from the versions.properties file'
-        type: boolean
-        required: false
-        default: false
-
-jobs:
-  build-rn-slice:
-    runs-on: macos-15
-    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:
-          platform: ${{ matrix.slice }}
-      - name: Yarn Install
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Set Hermes version
-        shell: bash
-        run: |
-          if [ "${{ inputs.use-hermes-nightly }}" == "true" ]; then
-            HERMES_VERSION="nightly"
-          else
-            HERMES_VERSION=$(sed -n 's/^HERMES_VERSION_NAME=//p' packages/react-native/sdks/hermes-engine/version.properties)
-          fi
-          echo "Using Hermes version: $HERMES_VERSION"
-          echo "HERMES_VERSION=$HERMES_VERSION" >> $GITHUB_ENV
-      - name: Download ReactNativeDependencies
-        uses: actions/download-artifact@v4
-        with:
-          name: ReactNativeDependencies${{ 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-15
-    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

@@ -1,13 +1,12 @@
-name: Prebuild iOS Dependencies
+name: Prebuild iOS
 
 on:
   workflow_call: # this directive allow us to call this workflow from other workflows
 
-
 jobs:
   prepare_workspace:
     name: Prepare workspace
-    runs-on: macos-15
+    runs-on: macos-14
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -18,7 +17,7 @@ jobs:
         uses: actions/cache/restore@v4
         with:
           path: packages/react-native/third-party/
-          key: v3-ios-dependencies-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
+          key: v1-ios-dependencies-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
           enableCrossOsArchive: true
       - name: Yarn Install
         if: steps.restore-ios-prebuilds.outputs.cache-hit != 'true'
@@ -40,13 +39,13 @@ jobs:
         uses: actions/cache/save@v4
         if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
         with:
-          key: v3-ios-dependencies-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
+          key: v1-ios-dependencies-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
           enableCrossOsArchive: true
           path: packages/react-native/third-party/
 
   build-apple-slices:
     name: Build Apple Slice
-    runs-on: macos-15
+    runs-on: macos-14
     needs: [prepare_workspace]
     strategy:
       fail-fast: false
@@ -65,17 +64,16 @@ jobs:
         uses: actions/checkout@v4
       - name: Setup node.js
         uses: ./.github/actions/setup-node
+      - name: Setup xcode
+        uses: ./.github/actions/setup-xcode
+        with:
+          xcode-version: '16.1'
       - name: Restore slice folder
         id: restore-slice-folder
         uses: actions/cache/restore@v4
         with:
           path: packages/react-native/third-party/.build/Build/Products
-          key: v3-ios-dependencies-slice-folder-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
-      - name: Setup xcode
-        if: steps.restore-slice-folder.outputs.cache-hit != 'true'
-        uses: ./.github/actions/setup-xcode
-        with:
-          platform: ${{ matrix.slice }}
+          key: v1-ios-dependencies-slice-folder-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
       - name: Yarn Install
         if: steps.restore-slice-folder.outputs.cache-hit != 'true'
         uses: ./.github/actions/yarn-install
@@ -86,8 +84,15 @@ jobs:
           name: ios-prebuilds-workspace
           path: packages/react-native/third-party/
       - name: Print third-party folder structure
-        if: steps.restore-slice-folder.outputs.cache-hit != 'true'
         run: ls -lR packages/react-native/third-party
+      - name: Install VisionOS
+        if: ${{ steps.restore-slice-folder.outputs.cache-hit != 'true' && (matrix.slice == 'xros' || matrix.slice == 'xros-simulator') }}
+        run: |
+          # https://github.com/actions/runner-images/issues/10559
+          sudo xcodebuild -runFirstLaunch
+          sudo xcrun simctl list
+          sudo xcodebuild -downloadPlatform visionOS
+          sudo xcodebuild -runFirstLaunch
       - name: Build slice ${{ matrix.slice }} for ${{ matrix.flavor }}
         if: steps.restore-slice-folder.outputs.cache-hit != 'true'
         run:  node scripts/releases/prepare-ios-prebuilds.js -b -p ${{ matrix.slice }} -r ${{ matrix.flavor }}
@@ -101,22 +106,19 @@ jobs:
         uses: actions/cache/save@v4
         if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
         with:
-          key: v3-ios-dependencies-slice-folder-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
+          key: v1-ios-dependencies-slice-folder-${{ matrix.slice }}-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
           enableCrossOsArchive: true
           path: |
             packages/react-native/third-party/.build/Build/Products
 
   create-xcframework:
     name: Prepare XCFramework
-    runs-on: macos-15
+    runs-on: macos-14
     needs: [build-apple-slices]
     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: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT_PWD }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -132,17 +134,11 @@ jobs:
         with:
           path: |
             packages/react-native/third-party/
-          key: v3-ios-dependencies-xcframework-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
+          key: v1-ios-dependencies-xcframework-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
       # If cache hit, we already have our binary. We don't need to do anything.
       - name: Yarn Install
         if: steps.restore-xcframework.outputs.cache-hit != 'true'
         uses: ./.github/actions/yarn-install
-      - name: Restore workspace
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          name: ios-prebuilds-workspace
-          path: packages/react-native/third-party/
       - name: Download slices
         if: steps.restore-xcframework.outputs.cache-hit != 'true'
         uses: actions/download-artifact@v4
@@ -150,18 +146,9 @@ jobs:
           pattern: prebuild-slice-${{ matrix.flavor }}-*
           path: packages/react-native/third-party/.build/Build/Products
           merge-multiple: true
-      - name: Setup Keychain
-        if: ${{ steps.restore-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-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT == '' }}
+        if: steps.restore-xcframework.outputs.cache-hit != 'true'
         run: node scripts/releases/prepare-ios-prebuilds.js -c
-      - name: Create and Sign XCFramework
-        if: ${{ steps.restore-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT != '' }}
-        run: node scripts/releases/prepare-ios-prebuilds.js -c -i "React Org"
       - name: Compress and Rename XCFramework
         if: steps.restore-xcframework.outputs.cache-hit != 'true'
         run: |
@@ -173,9 +160,8 @@ jobs:
       - name: Compress and Rename dSYM
         if: steps.restore-xcframework.outputs.cache-hit != 'true'
         run: |
-          cd packages/react-native/third-party/Symbols/
-          tar -cz -f ../ReactNativeDependencies${{ 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${{ matrix.flavor }}.framework.dSYM.tar.gz \
+            packages/react-native/third-party/Symbols/ReactNativeDependencies.framework.dSYM
       - name: Upload XCFramework Artifact
         uses: actions/upload-artifact@v4
         with:
@@ -194,4 +180,4 @@ jobs:
           path: |
             packages/react-native/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
             packages/react-native/third-party/ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz
-          key: v3-ios-dependencies-xcframework-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
+          key: v1-ios-dependencies-xcframework-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}

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

@@ -9,7 +9,6 @@ on:
 jobs:
   publish_bumped_packages:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
     env:
       GHA_NPM_TOKEN: ${{ secrets.GHA_NPM_TOKEN }}
     steps:
@@ -21,8 +20,6 @@ jobs:
         uses: ./.github/actions/yarn-install
       - name: Build packages
         run: yarn build
-      - name: Build types
-        run: yarn build-types --skip-snapshot
       - name: Set NPM auth token
         run: echo "//registry.npmjs.org/:_authToken=$GHA_NPM_TOKEN" > ~/.npmrc
       - name: Find and publish all bumped packages

.github/workflows/publish-release.yml

@@ -19,45 +19,152 @@ jobs:
           echo "Setting release type to release"
           echo "RELEASE_TYPE=release" >> $GITHUB_OUTPUT
 
-  set_hermes_versions:
+  prepare_hermes_workspace:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_VERSION_FILE: packages/react-native/sdks/.hermesversion
     outputs:
-      HERMES_VERSION: ${{ steps.set_hermes_versions.outputs.HERMES_VERSION }}
-      HERMES_V1_VERSION: ${{ steps.set_hermes_versions.outputs.HERMES_V1_VERSION }}
+      react-native-version: ${{ steps.prepare-hermes-workspace.outputs.react-native-version }}
+      hermes-version: ${{ steps.prepare-hermes-workspace.outputs.hermes-version }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - id: set_hermes_versions
-        run: |
-          echo "Setting hermes versions to latest"
-          hermes_version=$(grep -oE 'HERMES_VERSION_NAME=([0-9]+\.[0-9]+\.[0-9]+)' packages/react-native/sdks/hermes-engine/version.properties | cut -d'=' -f2)
-          hermes_v1_version=$(grep -oE 'HERMES_V1_VERSION_NAME=([0-9]+\.[0-9]+\.[0-9]+)' packages/react-native/sdks/hermes-engine/version.properties | cut -d'=' -f2)
+      - name: Prepare Hermes Workspace
+        id: prepare-hermes-workspace
+        uses: ./.github/actions/prepare-hermes-workspace
+        with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
+          hermes-version-file: ${{ env.HERMES_VERSION_FILE }}
 
-          echo "HERMES_VERSION=$hermes_version" >> $GITHUB_OUTPUT
-          echo "HERMES_V1_VERSION=$hermes_v1_version" >> $GITHUB_OUTPUT
-      - name: Print hermes versions
-        run: |
-          echo "HERMES_VERSION=${{ steps.set_hermes_versions.outputs.HERMES_VERSION }}"
-          echo "HERMES_V1_VERSION=${{ steps.set_hermes_versions.outputs.HERMES_V1_VERSION }}"
+  build_hermesc_apple:
+    runs-on: macos-13
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Apple
+        uses: ./.github/actions/build-hermesc-apple
+        with:
+          hermes-version: ${{ needs.prepare_hermes_workspace.output.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.output.react-native-version }}
+  build_apple_slices_hermes:
+    runs-on: macos-14
+    needs: [build_hermesc_apple, prepare_hermes_workspace]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+      HERMES_OSXBIN_ARTIFACTS_DIR: /tmp/hermes/osx-bin
+      IOS_DEPLOYMENT_TARGET: "15.1"
+      XROS_DEPLOYMENT_TARGET: "1.0"
+      MAC_DEPLOYMENT_TARGET: "10.15"
+    strategy:
+      fail-fast: false
+      matrix:
+        flavor: [Debug, Release]
+        slice: [macosx, iphoneos, iphonesimulator, appletvos, appletvsimulator, catalyst, xros, xrsimulator]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Slice
+        uses: ./.github/actions/build-apple-slices-hermes
+        with:
+          flavor: ${{ matrix.flavor }}
+          slice: ${{ matrix.slice}}
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
+  build_hermes_macos:
+    runs-on: macos-13
+    needs: [build_apple_slices_hermes, prepare_hermes_workspace]
+    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]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Hermes MacOS
+        uses: ./.github/actions/build-hermes-macos
+        with:
+          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:
-    if: github.repository == 'facebook/react-native'
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
-    secrets: inherit
+    uses: ./.github/workflows/prebuild-ios.yml
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    secrets: inherit
-    needs: [prebuild_apple_dependencies]
+  build_hermesc_linux:
+    runs-on: ubuntu-latest
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Linux
+        uses: ./.github/actions/build-hermesc-linux
+        with:
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_hermesc_windows:
+    runs-on: windows-2019
+    needs: prepare_hermes_workspace
+    env:
+      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'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Windows
+        uses: ./.github/actions/build-hermesc-windows
+        with:
+          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:
       [
         set_release_type,
+        prepare_hermes_workspace,
+        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
@@ -67,6 +174,7 @@ jobs:
         # By default we only build ARM64 to save time/resources. For release/nightlies, we override this value to build all archs.
         ORG_GRADLE_PROJECT_reactNativeArchitectures: "arm64-v8a"
     env:
+      HERMES_WS_DIR: /tmp/hermes
       GHA_NPM_TOKEN: ${{ secrets.GHA_NPM_TOKEN }}
       ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
       ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
@@ -82,6 +190,7 @@ jobs:
       - name: Build and Publish NPM Package
         uses: ./.github/actions/build-npm-package
         with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
           gha-npm-token: ${{ env.GHA_NPM_TOKEN }}
           gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
@@ -117,31 +226,6 @@ jobs:
           github-token: ${{ secrets.REACT_NATIVE_BOT_GITHUB_TOKEN }}
           script: |
             const {verifyReleaseOnNpm} = require('./.github/workflow-scripts/verifyReleaseOnNpm.js');
-            const {isLatest} = require('./.github/workflow-scripts/publishTemplate.js');
+            const {isLatest()} = require('./.github/workflow-scripts/publishTemplate.js');
             const version = "${{ github.ref_name }}";
             await verifyReleaseOnNpm(version, isLatest());
-      - name: Verify that artifacts are on Maven
-        uses: actions/github-script@v6
-        with:
-          script: |
-            const {verifyArtifactsAreOnMaven} = require('./.github/workflow-scripts/verifyArtifactsAreOnMaven.js');
-            const version = "${{ github.ref_name }}";
-            await verifyArtifactsAreOnMaven(version);
-
-  generate_changelog:
-    needs: build_npm_package
-    uses: ./.github/workflows/generate-changelog.yml
-    secrets: inherit
-
-  bump_podfile_lock:
-    needs: build_npm_package
-    uses: ./.github/workflows/bump-podfile-lock.yml
-    secrets: inherit
-
-  create_draft_release:
-    needs: [generate_changelog, set_hermes_versions]
-    uses: ./.github/workflows/create-draft-release.yml
-    secrets: inherit
-    with:
-      hermesVersion: ${{ needs.set_hermes_versions.outputs.HERMES_VERSION }}
-      hermesV1Version: ${{ needs.set_hermes_versions.outputs.HERMES_V1_VERSION }}

.github/workflows/retry-workflow.yml

@@ -1,20 +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
-        if: github.repository == 'facebook/react-native'
-        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:
@@ -11,7 +16,6 @@ on:
 jobs:
   set_release_type:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
     outputs:
       RELEASE_TYPE: ${{ steps.set_release_type.outputs.RELEASE_TYPE }}
     env:
@@ -33,22 +37,95 @@ jobs:
 
           echo "Should I run E2E tests? ${{ inputs.run-e2e-tests }}"
 
-  prebuild_apple_dependencies:
-    if: github.repository == 'facebook/react-native'
-    uses: ./.github/workflows/prebuild-ios-dependencies.yml
-    secrets: inherit
+  prepare_hermes_workspace:
+    runs-on: ubuntu-latest
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_VERSION_FILE: packages/react-native/sdks/.hermesversion
+    outputs:
+      react-native-version: ${{ steps.prepare-hermes-workspace.outputs.react-native-version }}
+      hermes-version: ${{ steps.prepare-hermes-workspace.outputs.hermes-version }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Prepare Hermes Workspace
+        id: prepare-hermes-workspace
+        uses: ./.github/actions/prepare-hermes-workspace
+        with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
+          hermes-version-file: ${{ env.HERMES_VERSION_FILE }}
 
-  prebuild_react_native_core:
-    uses: ./.github/workflows/prebuild-ios-core.yml
-    with:
-      use-hermes-nightly: ${{ !endsWith(github.ref_name, '-stable') }}
-    secrets: inherit
-    needs: [prebuild_apple_dependencies]
+  build_hermesc_apple:
+    runs-on: macos-13
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Apple
+        uses: ./.github/actions/build-hermesc-apple
+        with:
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_apple_slices_hermes:
+    runs-on: macos-14
+    needs: [build_hermesc_apple, prepare_hermes_workspace]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+      HERMES_OSXBIN_ARTIFACTS_DIR: /tmp/hermes/osx-bin
+      IOS_DEPLOYMENT_TARGET: "15.1"
+      XROS_DEPLOYMENT_TARGET: "1.0"
+      MAC_DEPLOYMENT_TARGET: "10.15"
+    strategy:
+      fail-fast: false
+      matrix:
+        flavor: [Debug, Release]
+        slice: [macosx, iphoneos, iphonesimulator, appletvos, appletvsimulator, catalyst, xros, xrsimulator]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Slice
+        uses: ./.github/actions/build-apple-slices-hermes
+        with:
+          flavor: ${{ matrix.flavor }}
+          slice: ${{ matrix.slice}}
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_hermes_macos:
+    runs-on: macos-13
+    needs: [build_apple_slices_hermes, prepare_hermes_workspace]
+    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]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build Hermes MacOS
+        uses: ./.github/actions/build-hermes-macos
+        with:
+          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.yml
 
   test_ios_rntester_ruby_3_2_0:
-    runs-on: macos-15
+    runs-on: macos-13
     needs:
-      [prebuild_apple_dependencies, prebuild_react_native_core]
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -56,81 +133,133 @@ jobs:
         uses: ./.github/actions/test-ios-rntester
         with:
           ruby-version: "3.2.0"
-          flavor: Debug
+          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-15-large
+  test_ios_rntester_dynamic_frameworks:
+    runs-on: macos-13
     needs:
-      [prebuild_apple_dependencies, prebuild_react_native_core]
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos]
+    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]
-        frameworks: [StaticLibraries, DynamicFrameworks]
+        jsengine: [Hermes, JSC]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Run it
         uses: ./.github/actions/test-ios-rntester
         with:
-          use-frameworks: ${{ matrix.frameworks }}
-          flavor: ${{ matrix.flavor }}
+          jsengine: ${{ matrix.jsengine }}
+          use-frameworks: DynamicFrameworks
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
-  test_e2e_ios_rntester:
-    runs-on: macos-15-large
+  test_ios_rntester:
+    runs-on: macos-13-large
     needs:
-      [test_ios_rntester]
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [Hermes, JSC]
+        architecture: [NewArch, OldArch]
+        flavor: [Debug, Release]
+        exclude: # We don't want to test the Old Arch in Release for E2E
+          - jsengine: Hermes
+            architecture: OldArch
+            flavor: Release
+          - jsengine: JSC
+            architecture: OldArch
+            flavor: Release
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Run it
+        uses: ./.github/actions/test-ios-rntester
+        with:
+          jsengine: ${{ matrix.jsengine }}
+          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: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    runs-on: macos-13-large
+    needs:
+      [test_ios_rntester]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
+    strategy:
+      fail-fast: false
+      matrix:
+        jsengine: [Hermes, JSC]
+        architecture: [NewArch]
         flavor: [Debug, Release]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
       - name: Download App
         uses: actions/download-artifact@v4
         with:
-          name: RNTesterApp-NewArch-${{ matrix.flavor }}
+          name: RNTesterApp-${{ matrix.architecture }}-${{ matrix.jsengine }}-${{ matrix.flavor }}
           path: /tmp/RNTesterBuild/RNTester.app
       - name: Check downloaded folder content
         run: ls -lR /tmp/RNTesterBuild
-      - name: Setup xcode
-        uses: ./.github/actions/setup-xcode
-        with:
-          platform: ios
       - name: Run E2E Tests
         uses: ./.github/actions/maestro-ios
         with:
           app-path: "/tmp/RNTesterBuild/RNTester.app"
           app-id: com.meta.RNTester.localDevelopment
+          jsengine: ${{ matrix.jsengine }}
           maestro-flow: ./packages/rn-tester/.maestro/
           flavor: ${{ matrix.flavor }}
 
   test_e2e_ios_templateapp:
-    runs-on: macos-15-large
-    needs: [build_npm_package, prebuild_apple_dependencies]
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    runs-on: macos-13-large
+    needs: build_npm_package
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [Hermes, JSC]
         flavor: [Debug, Release]
+        architecture: [OldArch, NewArch]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup xcode
         uses: ./.github/actions/setup-xcode
-        with:
-          platform: ios
       - name: Setup node.js
         uses: ./.github/actions/setup-node
       - name: Run yarn
         uses: ./.github/actions/yarn-install
       - name: Setup ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@v1.170.0
         with:
           ruby-version: 2.6.10
+      - name: Download Hermes
+        uses: actions/download-artifact@v4
+        with:
+          name: hermes-darwin-bin-${{matrix.flavor}}
+          path: /tmp/react-native-tmp
       - name: Download React Native Package
         uses: actions/download-artifact@v4
         with:
@@ -138,32 +267,14 @@ jobs:
           path: /tmp/react-native-tmp
       - name: Print /tmp folder
         run: ls -lR /tmp/react-native-tmp
-      - name: Download ReactNativeDependencies
-        uses: actions/download-artifact@v4
-        with:
-          name: ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-          path: /tmp/third-party
-      - name: Print third-party folder
-        shell: bash
-        run: ls -lR /tmp/third-party
-      - name: Download React Native Prebuilds
-        uses: actions/download-artifact@v4
-        with:
-          name: ReactCore${{ 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")
           echo "React Native tgs is $REACT_NATIVE_PKG"
 
+          HERMES_PATH=$(find /tmp/react-native-tmp -type f -name "*.tar.gz")
+          echo "Hermes path is $HERMES_PATH"
+
           # For stable branches, we want to use the stable branch of the template
           # In all the other cases, we want to use "main"
           BRANCH=${{ github.ref_name }}
@@ -176,11 +287,11 @@ jobs:
           cd /tmp/RNTestProject/ios
           bundle install
           NEW_ARCH_ENABLED=1
-
-          export RCT_USE_LOCAL_RN_DEP=/tmp/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-          # Disable prebuilds for now, as they are causing issues with E2E tests for 0.82-stable branch
-          # export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ matrix.flavor }}.xcframework.tar.gz"
-          RCT_NEW_ARCH_ENABLED=$NEW_ARCH_ENABLED bundle exec pod install
+          if [[ ${{ matrix.architecture }} == "OldArch" ]]; then
+            echo "Disable the New Architecture"
+            NEW_ARCH_ENABLED=0
+          fi
+          HERMES_ENGINE_TARBALL_PATH=$HERMES_PATH RCT_NEW_ARCH_ENABLED=$NEW_ARCH_ENABLED bundle exec pod install
 
           xcodebuild \
             -scheme "RNTestProject" \
@@ -194,17 +305,23 @@ jobs:
         with:
           app-path: "/tmp/RNTestProject/Build/Products/${{ matrix.flavor }}-iphonesimulator/RNTestProject.app"
           app-id: org.reactjs.native.example.RNTestProject
+          jsengine: ${{ matrix.jsengine }}
           maestro-flow: ./scripts/e2e/.maestro/
           flavor: ${{ matrix.flavor }}
           working-directory: /tmp/RNTestProject
+          architecture: ${{ matrix.architecture }}
 
   test_e2e_android_templateapp:
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: 4-core-ubuntu
     needs: build_npm_package
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [Hermes, JSC]
         flavor: [debug, release]
+        architecture: [OldArch, NewArch]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -250,6 +367,16 @@ jobs:
           cd /tmp/RNTestProject
           echo "react.internal.mavenLocalRepo=$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
+
+          if [[ ${{matrix.jsengine}} == "JSC" ]]; then
+            echo "Using JSC instead of Hermes"
+            sed -i 's/hermesEnabled=true/hermesEnabled=false/' android/gradle.properties
+          fi
+
           # Build
           cd android
           CAPITALIZED_FLAVOR=$(echo "${{ matrix.flavor }}" | awk '{print toupper(substr($0, 1, 1)) substr($0, 2)}')
@@ -261,29 +388,46 @@ jobs:
         with:
           app-path: /tmp/RNTestProject/android/app/build/outputs/apk/${{ matrix.flavor }}/app-${{ matrix.flavor }}.apk
           app-id: com.rntestproject
+          jsengine: ${{ matrix.jsengine }}
           maestro-flow: ./scripts/e2e/.maestro/
           install-java: 'false'
           flavor: ${{ matrix.flavor }}
           working-directory: /tmp/RNTestProject
+          architecture: ${{ matrix.architecture }}
 
-  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 }}
+  build_hermesc_linux:
+    runs-on: ubuntu-latest
+    needs: prepare_hermes_workspace
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Build and Test Fantom
-        uses: ./.github/actions/run-fantom-tests
+      - name: Build HermesC Linux
+        uses: ./.github/actions/build-hermesc-linux
         with:
-          release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
-          gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
+
+  build_hermesc_windows:
+    runs-on: windows-2019
+    needs: prepare_hermes_workspace
+    env:
+      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'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build HermesC Windows
+        uses: ./.github/actions/build-hermesc-windows
+        with:
+          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
@@ -302,14 +446,17 @@ jobs:
         uses: ./.github/actions/build-android
         with:
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
+          run-e2e-tests: ${{ 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: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
     runs-on: 4-core-ubuntu
     needs: [build_android]
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [hermes, jsc]
         flavor: [debug, release]
     steps:
       - name: Checkout
@@ -321,16 +468,17 @@ jobs:
       - name: Download APK
         uses: actions/download-artifact@v4
         with:
-          name: rntester-${{ matrix.flavor }}
-          path: ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.flavor }}/
+          name: rntester-${{ matrix.jsengine }}-${{ matrix.flavor }}
+          path: ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.jsengine }}/${{ matrix.flavor }}/
       - name: Print folder structure
-        run: ls -lR ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.flavor }}/
+        run: ls -lR ./packages/rn-tester/android/app/build/outputs/apk/${{ matrix.jsengine }}/${{ 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/${{ matrix.jsengine }}/${{ matrix.flavor }}/app-${{ matrix.jsengine }}-x86-${{ matrix.flavor }}.apk
           app-id: com.facebook.react.uiapp
+          jsengine: ${{ matrix.jsengine }}
           maestro-flow: ./packages/rn-tester/.maestro
           flavor: ${{ matrix.flavor }}
 
@@ -339,21 +487,27 @@ jobs:
     needs:
       [
         set_release_type,
+        prepare_hermes_workspace,
+        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
       env:
         TERM: "dumb"
         GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+    env:
+      HERMES_WS_DIR: /tmp/hermes
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Build NPM Package
         uses: ./.github/actions/build-npm-package
         with:
+          hermes-ws-dir: ${{ env.HERMES_WS_DIR }}
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
           gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
 
@@ -375,6 +529,8 @@ jobs:
       fail-fast: false
       matrix:
         flavor: [Debug, Release]
+        architecture: [NewArch, OldArch]
+        jsengine: [Hermes, JSC]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -396,20 +552,20 @@ jobs:
           cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
       - name: Run yarn install
         uses: ./.github/actions/yarn-install
-      - name: Set nightly Hermes versions
-        shell: bash
-        run: |
-          node ./scripts/releases/use-hermes-nightly.js
-      - name: Run yarn install again, with the correct hermes version
-        uses: ./.github/actions/yarn-install
       - name: Prepare the Helloworld application
         shell: bash
         run: node ./scripts/e2e/init-project-e2e.js --useHelloWorld --pathToLocalReactNative "$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 }}, and using the ${{ matrix.jsengine }} JS engine.
         shell: bash
         run: |
-          cd private/helloworld/android
+          cd packages/helloworld/android
           args=()
+          if [[ ${{ matrix.architecture }} == "OldArch" ]]; then
+            args+=(--arch old)
+          fi
+          if [[ ${{ matrix.jsengine }} == "JSC" ]]; then
+            args+=(--jsvm jsc)
+          fi
           if [[ ${{ matrix.flavor }} == "Release" ]]; then
             args+=(--prod)
           fi
@@ -417,15 +573,16 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4.3.4
         with:
-          name: helloworld-apk-${{ matrix.flavor }}-NewArch-hermes
-          path: ./private/helloworld/android/app/build/outputs/apk/
+          name: helloworld-apk-${{ matrix.flavor }}-${{ matrix.architecture }}-${{ matrix.jsengine }}
+          path: ./packages/helloworld/android/app/build/outputs/apk/
           compression-level: 0
 
   test_ios_helloworld_with_ruby_3_2_0:
-    runs-on: macos-15
-    needs: [prebuild_apple_dependencies, prebuild_react_native_core]
+    runs-on: macos-13
+    needs: [prepare_hermes_workspace, build_hermes_macos] # 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
       YARN_ENABLE_IMMUTABLE_INSTALLS: false
     steps:
       - name: Checkout
@@ -433,21 +590,27 @@ 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-15
-    needs: [prebuild_apple_dependencies, prebuild_react_native_core]
+    runs-on: macos-13
+    needs: [prepare_hermes_workspace, build_hermes_macos] # prepare_hermes_workspace must be there because we need its reference to retrieve a couple of outputs
     strategy:
       matrix:
         flavor: [Debug, Release]
+        jsengine: [Hermes, JSC]
         use_frameworks: [StaticLibraries, DynamicFrameworks]
         exclude:
           # This config is tested with Ruby 3.2.0. Let's not double test it.
           - flavor: Debug
+            jsengine: Hermes
             use_frameworks: StaticLibraries
     env:
       PROJECT_NAME: iOSTemplateProject
+      HERMES_WS_DIR: /tmp/hermes
       YARN_ENABLE_IMMUTABLE_INSTALLS: false
     steps:
       - name: Checkout
@@ -455,15 +618,17 @@ jobs:
       - uses: ./.github/actions/test-ios-helloworld
         with:
           flavor: ${{ matrix.flavor }}
+          jsengine: ${{ matrix.jsengine }}
           use-frameworks: ${{ matrix.use_frameworks }}
+          hermes-version: ${{ needs.prepare_hermes_workspace.outputs.hermes-version }}
+          react-native-version: ${{ needs.prepare_hermes_workspace.outputs.react-native-version }}
 
   test_js:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
     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
@@ -474,53 +639,12 @@ jobs:
 
   lint:
     runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     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 +1,75 @@
+name: Test Libraries on Nightlies
+
+on:
+  workflow_call:
+
+jobs:
+  test-library-on-nightly-android:
+    name: "[Android] ${{ matrix.library }}"
+    runs-on: ubuntu-latest
+    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-community/netinfo",
+          "react-native-reanimated",
+          "react-native-svg",
+          "react-native-video",
+          "react-native-webview",
+          "react-native-mmkv",
+          "react-native-screens",
+          "react-native-pager-view",
+          "@react-native-community/slider"
+        ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Test ${{ inputs.library-name }}
+        uses: ./.github/actions/test-library-on-nightly
+        with:
+          library-npm-package: ${{ matrix.library }}
+          platform: android
+
+  test-library-on-nightly-ios:
+    name: "[iOS] ${{ matrix.library }}"
+    runs-on: macos-13-large
+    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-community/netinfo",
+          "react-native-reanimated",
+          "react-native-svg",
+          "react-native-video",
+          "react-native-webview",
+          "react-native-mmkv",
+          "react-native-screens",
+          "react-native-pager-view",
+          "@react-native-community/slider"
+        ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Test ${{ inputs.library-name }}
+        uses: ./.github/actions/test-library-on-nightly
+        with:
+          library-npm-package: ${{ matrix.library }}
+          platform: ios

.github/workflows/validate-dotslash-artifacts.yml

@@ -1,49 +0,0 @@
-name: Validate DotSlash Artifacts
-
-on:
-  workflow_dispatch:
-  release:
-    types: [published]
-  push:
-    branches:
-      - main
-    paths:
-      - packages/debugger-shell/bin/react-native-devtools
-      - "scripts/releases/**"
-      - package.json
-      - yarn.lock
-  pull_request:
-    branches:
-      - main
-    paths:
-      - packages/debugger-shell/bin/react-native-devtools
-      - "scripts/releases/**"
-      - package.json
-      - yarn.lock
-  # Same time as the nightly build: 2:15 AM UTC
-  schedule:
-    - cron: "15 2 * * *"
-
-jobs:
-  validate-dotslash-artifacts:
-    runs-on: ubuntu-latest
-    if: github.repository == 'facebook/react-native'
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          fetch-tags: true
-      - name: Install dependencies
-        uses: ./.github/actions/yarn-install
-      - name: Configure Git
-        shell: bash
-        run: |
-          git config --local user.email "bot@reactnative.dev"
-          git config --local user.name "React Native Bot"
-      - name: Validate DotSlash artifacts
-        uses: actions/github-script@v6
-        with:
-          script: |
-            const {validateDotSlashArtifacts} = require('./scripts/releases/validate-dotslash-artifacts.js');
-            await validateDotSlashArtifacts();

.gitignore

@@ -30,7 +30,6 @@ project.xcworkspace
 /packages/rn-tester/android/app/gradle/
 /packages/rn-tester/android/app/gradlew
 /packages/rn-tester/android/app/gradlew.bat
-/packages/react-native/build/
 /packages/react-native/ReactAndroid/build/
 /packages/react-native/ReactAndroid/.cxx/
 /packages/react-native/ReactAndroid/gradle/
@@ -40,9 +39,10 @@ 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
@@ -107,43 +107,33 @@ 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/rn-tester/bin/
-/packages/rn-tester/cache/
-/packages/rn-tester/extensions/
-/packages/rn-tester/gems/
-/packages/rn-tester/specifications/
+/packages/helloworld/ios/build/
+/packages/helloworld/ios/Pods/
+/packages/helloworld/ios/Podfile.lock
 /packages/rn-tester/Gemfile.lock
 /packages/**/RCTLegacyInteropComponents.mm
-/packages/sourcemap.ios.map
 
 # Ignore RNTester specific Pods, but keep the __offline_mirrors__ here.
 /packages/rn-tester/Pods/*
 !/packages/rn-tester/Pods/__offline_mirrors_hermes__
 !/packages/rn-tester/Pods/__offline_mirrors_jsc__
 
-# Swift Package build folder
-/packages/react-native/.build
-/packages/react-native/.swiftpm
-/packages/react-native/React/includes/
-
 # @react-native/codegen
 /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
@@ -170,12 +160,8 @@ 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/

.markdownlint-cli2.mjs

@@ -1,43 +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
- */
-
-import relativeLinksRule from 'markdownlint-rule-relative-links';
-
-const config = {
-  config: {
-    default: false,
-    'heading-increment': true,
-    'no-reversed-links': true,
-    'no-missing-space-atx': true,
-    'no-duplicate-heading': {
-      siblings_only: true,
-    },
-    'single-title': true,
-    'no-trailing-punctuation': true,
-    'no-space-in-emphasis': true,
-    'no-space-in-code': true,
-    'no-space-in-links': true,
-    'fenced-code-language': true,
-    'first-line-heading': true,
-    'no-empty-links': true,
-    'no-alt-text': true,
-    'link-fragments': true,
-    'table-column-count': true,
-
-    // The rest of default rules are already handled by prettier
-
-    // Custom rules
-    'relative-links': true,
-  },
-  globs: ['**/__docs__/*.md'],
-  ignores: ['**/node_modules', '__docs__/README-template.md'],
-  customRules: [relativeLinksRule],
-};
-
-export default config;

.prettierrc

@@ -0,0 +1,26 @@
+{
+  "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"
+      }
+    }
+  ]
+}

.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,
-      },
-    },
-  ],
-};

CHANGELOG-pre-060.md

@@ -1174,7 +1174,7 @@ Heads-up: the Facebook internal team is [currently working on a rewrite of some
 - Restrict `WebView` to only http(s) URLs: ([634e7e11e3](https://github.com/facebook/react-native/commit/634e7e11e3ad39e0b13bf20cc7722c0cfd3c3e28), [23f8f7aecb](https://github.com/facebook/react-native/commit/23f8f7aecb1f21f4f5e44fb9e4a7456ea97935c9))
 - Node 8 is now the minimum required version ([c1e6f27823](https://github.com/facebook/react-native/commit/c1e6f278237e84c8ed26d3d2eb45035f250e2d40))
 - Upgrade React to v16.4.1, sync React Renderer to revision ae14317 ([c749d951ad](https://github.com/facebook/react-native/commit/c749d951ada829c6f6fb76f35e68142e61054433))
-- Update new project template's Flow config to fix `Cannot resolve module X` issue due to removal of `@providesModule` ([843a433e87](https://github.com/facebook/react-native/commit/843a433e87b0ccaa64ab70d07e22bffbabad8045))
+- Update new project template's Flow config to fix `Cannot resolve module X` isse due to removal of `@providesModule` ([843a433e87](https://github.com/facebook/react-native/commit/843a433e87b0ccaa64ab70d07e22bffbabad8045))
 - Upgrade Flow to v0.75 ([3bed272a62](https://github.com/facebook/react-native/commit/3bed272a620ac806a6142327013265ea8138641a), [bc2f12c68c](https://github.com/facebook/react-native/commit/bc2f12c68cf8cfdf8c060354e84392fd9a3645d8), [6264b6932a](https://github.com/facebook/react-native/commit/6264b6932a08e1cefd83c4536ff7839d91938730))
 - Upgrade Flow definitions ([f8b4850425](https://github.com/facebook/react-native/commit/f8b4850425f115c8a23dead7ec0716b61663aed6))
 - Upgrade Prettier to v1.13.6 ([29fb2a8e90](https://github.com/facebook/react-native/commit/29fb2a8e90fa3811f9485d4b89d9dbcfffea93a6), [bc2f12c68c](https://github.com/facebook/react-native/commit/bc2f12c68cf8cfdf8c060354e84392fd9a3645d8))
@@ -1745,7 +1745,7 @@ Below is a list of the remaining, low-level changes that made it into this relea
 - Changes to RCTShadowView to increase RCTSurface performance ([f96f9c5fd6](https://github.com/facebook/react-native/commit/f96f9c5fd692000f561e87cba68642ef7daf43e7) by [@shergin](https://github.com/shergin))
 - Designated methods to control dirty propagation ([af226ef949](https://github.com/facebook/react-native/commit/af226ef949f3a21ef68a6e6b9fbd4cc06fa05152) by [@shergin](https://github.com/shergin))
 - Add missing tvOS header ([49cbca7464](https://github.com/facebook/react-native/commit/49cbca7464e27c34105122459ae29cc3b1247513) by [@grabbou](https://github.com/grabbou))
-- On Android, separate logic to initialize JS from starting the app ([4996b9aeb4](https://github.com/facebook/react-native/commit/4996b9aeb4127892b7579b45927dec14833b8b4d) by [@axe-fb](https://github.com/axe-fb))
+- On Android, seperate logic to initialize JS from starting the app ([4996b9aeb4](https://github.com/facebook/react-native/commit/4996b9aeb4127892b7579b45927dec14833b8b4d) by [@axe-fb](https://github.com/axe-fb))
 - ♻️ JS linting was cleaned up: removed unused libs, strengthened the rules, removed unneeded rules, prevent disabled tests, and more ([2815ada238](https://github.com/facebook/react-native/commit/2815ada23872fc28dc8dd5a9833962cb73f452eb), [183c316f4c](https://github.com/facebook/react-native/commit/183c316f4c869804b88cffe40614c84ac0a472d0), [9c67e749d8](https://github.com/facebook/react-native/commit/9c67e749d8f63cf14ece201ec19eee4676f96a85), [79902f99b8](https://github.com/facebook/react-native/commit/79902f99b81f538042b38a857182c2e5adbfd006), [9a36872f0c](https://github.com/facebook/react-native/commit/9a36872f0c7ba03a92fabf65e4d659d6861ea786), [67a3c42d1a](https://github.com/facebook/react-native/commit/67a3c42d1a29b6fa1375f7445d1c9b4429939bae), [b826596700](https://github.com/facebook/react-native/commit/b82659670041d0e472f68c0a14b3ef5b962db09b), [a1a0a69546](https://github.com/facebook/react-native/commit/a1a0a6954635141ce6c167816b67674aa5c31062), and [11a495cb32](https://github.com/facebook/react-native/commit/11a495cb3235ebbc2ad890e92ec612fd5316bffb) by [@TheSavior](https://github.com/TheSavior))
 - 👷 Separate JS lint and flow checks from tests ([5ea5683d01](https://github.com/facebook/react-native/commit/5ea5683d01487b49c814fca6e11a818b9a777239) by [@hramos](https://github.com/hramos))
 - 👷 Fix Buck in build config to enable CI ([796122d8f3](https://github.com/facebook/react-native/commit/796122d8f3b825c0bf0c138c662f3477f8bab123), [7c3a61f3b6](https://github.com/facebook/react-native/commit/7c3a61f3b610e219fd798eccd330deb9a2471253), [82b123e744](https://github.com/facebook/react-native/commit/82b123e744b87cc59c96b4e82af9ed03981b4f42) by [@grabbou](https://github.com/grabbou))

ECOSYSTEM.md

@@ -28,7 +28,7 @@ Examples of contributing to the release include being a [community releaser](htt
 
 ### Current partners:
 * **[Coinbase](https://www.coinbase.com/):** Publishes [posts](https://blog.coinbase.com/tagged/react-native) advocating React Native usage. Supports `@react-native-community/datetimepicker` and other community modules to migrate to the new architecture. Supports releases in testing and feedback.
-* **[Callstack](https://callstack.com/):** Maintains [React Native Community CLI](https://github.com/react-native-community/cli), develops [RNEF](https://rnef.dev), [Re.Pack](https://re-pack.dev) and [other community libraries](https://github.com/callstack). Hosts [React Universe Conf](https://www.reactuniverseconf.com/) and [React Universe On Air](https://www.callstack.com/podcast).
+* **[Callstack](https://callstack.com/):** Maintains the [React Native CLI](https://github.com/react-native-community/react-native-cli) and [other community libraries](https://github.com/callstack), organizes [React Native EU](https://react-native.eu/) and hosts [The React Native Show podcast](https://www.callstack.com/podcast-react-native-show)
 * **[Expo](https://expo.dev/):** Builds [Expo Go and SDK](https://github.com/expo/expo), [Snack](https://snack.expo.dev/), and [Expo Application Services](https://expo.dev/eas). Maintains [React Native Directory](https://reactnative.directory/), stewards [React Navigation](https://reactnavigation.org/) along with other partners.
 * **[Infinite Red](https://infinite.red/):** Maintains the [ignite cli/boilerplate](https://github.com/infinitered/ignite), organizes [Chain React Conf](https://cr.infinite.red/), hosts the [React Native Radio podcast](https://reactnativeradio.com), publishes the [React Native Newsletter](https://reactnativenewsletter.com)
 * **[Meta](https://opensource.fb.com/):** Oversees the React Native product and maintains the [React Native core repo](https://reactnative.dev/) 

README.md

@@ -17,13 +17,10 @@
     <img src="https://img.shields.io/npm/v/react-native?color=brightgreen&label=npm%20package" alt="Current npm package version." />
   </a>
   <a href="https://reactnative.dev/docs/contributing">
-    <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg" alt="PRs are welcome!" />
+    <img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg" alt="PRs welcome!" />
   </a>
   <a href="https://twitter.com/intent/follow?screen_name=reactnative">
-    <img src="https://img.shields.io/twitter/follow/reactnative.svg?label=Follow%20@reactnative" alt="Follow @reactnative on X" />
-  </a>
-  <a href="https://bsky.app/profile/reactnative.dev">
-    <img src="https://img.shields.io/badge/Bluesky-0285FF?logo=bluesky&logoColor=fff" alt="Follow @reactnative.dev on Bluesky" />
+    <img src="https://img.shields.io/twitter/follow/reactnative.svg?label=Follow%20@reactnative" alt="Follow @reactnative" />
   </a>
 </p>
 
@@ -141,4 +138,7 @@ Larger discussions and proposals are discussed in [**@react-native-community/dis
 
 React Native is MIT licensed, as found in the [LICENSE][l] file.
 
+React Native documentation is Creative Commons licensed, as found in the [LICENSE-docs][ld] file.
+
 [l]: https://github.com/facebook/react-native/blob/main/LICENSE
+[ld]: https://github.com/facebook/react-native/blob/main/LICENSE-docs

__docs__/GUIDELINES.md

@@ -1,94 +0,0 @@
-# React Native Technical Documentation Guidelines
-
-_This is a document about documentation (hence the file name)._
-
-## Motivation
-
-The goals of this documentation are:
-
-1. To make it easier for people to understand and contribute to the React Native
-   architecture.
-2. To ensure the architecture is easy to maintain, with clearly scoped
-   subsystems that are easy to reason about and change.
-
-## Strategy
-
-Our documentation supports the following use cases:
-
-1. (Exploration based) I want to understand how React Native works and learn
-   about its different parts. I want to explore.
-2. (Goal based) I want to solve a problem and change something specific, so I
-   want to understand what I should change and how the system I need to change
-   works. I need to understand how other systems depend on this.
-
-To support the first case, we provide a single entrypoint for the whole
-documentation, which will be the first step in a tree of docs with links to
-parents and children:
-
-- `<root>/__docs__/README.md` (with links to subsystems 1, 2, etc.)
-  - `Subsystem 1/__docs__/README.md` (with links to root and subsystems 1.1,
-    1.2, etc.)
-    - `Subsystem 1.1/__docs__/README.md` (with links to subsystem 1 and
-      subsystems 1.1.1, 1.1.2, etc.)
-    - `Subsystem 1.2/__docs__/README.md`
-  - `Subsystem 2/__docs__/README.md`
-
-This structure will make it possible for the user to navigate across the
-documentation organically, just following links within the documents themselves.
-
-To support the second use case, focusing on a specific subsystem, we will
-describe what are the relationships between that subsystem and others, to make
-sure that changes to its API are understood, and that usages of other subsystems
-are considered.
-
-The use of the `__docs__` directory (inspired by Python) has 2 goals:
-
-1. Make the documentation easy to find in the directory, by generally appearing
-   at the top of the directory (similar to `__tests__`).
-2. Grouping the documentation itself and its assets (images, diagrams, etc.).
-
-## Guidelines
-
-### Content
-
-Use [this template](./README-template.md) to write the documentation for a
-subsystem, adding the appropriate subsections depending on what that
-documentation requires. Only diverge from this structure if it is strictly
-necessary (removing unnecessary or empty sections is fine).
-
-Include supporting images and diagrams in the documentation. Those assets should
-be placed in the same `__docs__` directory as the `README.md` file. Use relative
-paths to link to the assets in those directories.
-
-If you include Excalidraw diagrams, make sure to export an SVG image from the
-website using the "Embedded scene" option, so the original diagram is included
-in the file and can be re-uploaded to Excalidraw for future modifications. Use
-the extension `.excalidraw.svg` to signal this.
-
-### Granularity
-
-The level of granularity in the definition of the subsystems should be enough to
-correctly describe how React Native works, but not so detailed that any changes
-in the code require changes in the documentation.
-
-Examples:
-
-- Requires updating the docs:
-  - Adding a new major feature or API.
-  - Adding a new relevant dependency. Adding a dependency to helper functions
-    does not count as relevant.
-- Does NOT require updating the docs:
-  - Internal implementation details that do not change how the system works or
-    interacts with others.
-  - Making a minor API or feature change.
-  - Internal refactors, even if they create new modules or introduce
-    dependencies to external helpers.
-
-### Location
-
-When a specific subsystem exists in multiple directories (e.g.:
-platform-specific ones, C++, JavaScript, etc.):
-
-1. Choose one of them to place the canonical documentation (in order of
-   preference, JavaScript -> C++ -> platform).
-2. Create specific files in the rest linking to the canonical one.

__docs__/README-template.md

@@ -1,36 +0,0 @@
-# _Subsystem name_
-
-[🏠 Home](path/to/main/__docs__/README.md)
-
-_Description of the subsystem with the necessary context._
-
-## 🚀 Usage
-
-_Explanation of how the subsystem is used._
-
-## 📐 Design
-
-_Explain how the subsystem is designed, relevant implementation details, etc.
-Ideally include an Excalidraw diagram._
-
-## 🔗 Relationship with other systems
-
-### Part of
-
-- _A single bullet for the parent subsystem. Link to the documentation of that
-  subsystem if it exists._
-
-### Part of this
-
-- _One bullet point for each subsystem that is part of this one. Link to the
-  documentation of those subsystems if it exists._
-
-### Used by this
-
-- _One bullet point for each subsystem used by this one, explaining why it uses
-  it and how. Link to the documentation of those subsystems if it exists._
-
-### Uses this
-
-- _One bullet point for each subsystem using this one, explaining why it uses it
-  and how. Link to the documentation of those subsystems if it exists._

__docs__/README.md

@@ -1,109 +0,0 @@
-# React Native Technical Documentation
-
-The React Native technical documentation describes how React Native works
-internally, the subsystems it is composed of, how they work and how they
-interact with each other.
-
-The intended audience is people who want to learn about the internals of React
-Native and contribute to it. **End users of React Native are meant to use the
-[public website](https://reactnative.dev) instead** (its code can be found
-[here](https://github.com/facebook/react-native-website)).
-
-For details on how we approach technical documentation in this repository, see
-[GUIDELINES.md](./GUIDELINES.md).
-
-## 🚀 Usage
-
-This repository is not meant to be consumed directly by end users. Instead, it
-creates several packages that are published to the NPM registry for direct
-consumption by end users and frameworks.
-
-This repository uses a monorepo approach, and public packages can be found in
-the [`packages`](../packages/) directory (the ones that do not contain
-`"private": true` in their `package.json` file).
-
-The most important package is the
-[`react-native`](https://www.npmjs.com/package/react-native) package, located in
-[`packages/react-native`](../packages/react-native), which contains the public
-JavaScript API.
-
-This repository provides the Android and iOS versions of React Native. Versions
-for other platforms are maintained in their own repositories.
-
-## 📐 Design
-
-TODO: Explain the different components of React Native at a high level.
-
-## 🔗 Relationship with other systems
-
-### Part of this
-
-- Runtime
-  - Cross-platform
-    - [Feature Flags](../packages/react-native/src/private/featureflags/__docs__/README.md)
-    - Host / Instance / Bridgeless
-    - UI / Fabric
-      - Events
-      - Shadow Tree Lifecycle
-        - [Runtime Shadow Node Reference Update](../packages/react-native/ReactCommon/react/renderer/core/__docs__/RSNRU.md)
-        - [passChildrenWhenCloningPersistedNodes](../packages/react-native/ReactCommon/react/renderer/core/__docs__/passChildrenWhenCloning.md)
-      - Layout
-      - Mounting
-    - Native Modules / TurboModules
-    - JS Runtime
-      - [Event Loop](../packages/react-native/ReactCommon/react/renderer/runtimescheduler/__docs__/README.md)
-      - Globals and environment setup
-      - Error handling
-    - Developer Tools
-      - React DevTools
-      - LogBox
-    - Misc
-      - Web APIs
-        - DOM Traversal & Layout APIs
-        - [IntersectionObserver](../packages/react-native/src/private/webapis/intersectionobserver/__docs__/README.md)
-        - [MutationObserver](../packages/react-native/src/private/webapis/mutationobserver/__docs__/README.md)
-        - Performance & PerformanceObserver
-        - Timers
-  - Platform-specific
-    - Host Platform Interface
-  - Android
-    - UI
-      - [Events](../packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/events/__docs__/README.md)
-      - Mounting
-  - iOS
-    - UI
-      - Events
-      - Mounting
-- Build system
-  - Android
-  - iOS
-  - C++
-  - JavaScript
-    - Metro
-- Testing
-  - Android
-  - iOS
-  - C++
-  - JavaScript
-    - Flow
-    - TypeScript
-    - Jest
-    - ESLint
-  - Integration / E2E
-    - [Fantom](../private/react-native-fantom/__docs__/README.md)
-- Tooling
-  - React Native DevTools
-
-### Used by this
-
-This repository has many different types of dependencies: build systems,
-external packages to be used during development, external packages used at
-runtime, etc.
-
-### Uses this
-
-The main use cases for this repository are:
-
-1. Developing React Native itself.
-2. Testing and releasing React Native.
-3. Synchronizing forks like `react-native-windows` and `react-native-macos`.

build.gradle.kts

@@ -12,8 +12,6 @@ plugins {
   alias(libs.plugins.download) apply false
   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 +24,10 @@ 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 +35,8 @@ 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 +54,6 @@ 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 +62,8 @@ 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 +73,10 @@ 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"))
@@ -104,6 +92,9 @@ tasks.register("build") {
 tasks.register("publishAllToMavenTempLocal") {
   description = "Publish all the artifacts to be available inside a Maven Local repository on /tmp."
   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")
 }
 
 tasks.register("publishAndroidToSonatype") {
@@ -124,56 +115,15 @@ 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.hermes: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

@@ -4,8 +4,8 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow
  * @format
+ * @oncall flow
  */
 
 // Adapted from https://github.com/flow-typed/flow-typed/blob/main/definitions/environments/node/flow_v0.261.x-/node.js
@@ -2381,11 +2381,7 @@ declare class readline$Interface extends events$EventEmitter {
   close(): void;
   pause(): void;
   prompt(preserveCursor?: boolean): void;
-  question(
-    query: string,
-    optionsOrCallback: {|signal?: AbortSignal|} | ((answer: string) => void),
-    callback?: (answer: string) => void,
-  ): void;
+  question(query: string, callback: (answer: string) => void): void;
   resume(): void;
   setPrompt(prompt: string): void;
   write(
@@ -2403,38 +2399,29 @@ declare class readline$Interface extends events$EventEmitter {
 
 declare module 'readline' {
   declare var Interface: typeof readline$Interface;
-  declare function clearLine(
-    stream: stream$Stream,
-    dir: -1 | 1 | 0,
-    callback?: () => void,
-  ): void;
-  declare function clearScreenDown(
-    stream: stream$Stream,
-    callback?: () => void,
-  ): void;
+  declare function clearLine(stream: stream$Stream, dir: -1 | 1 | 0): void;
+  declare function clearScreenDown(stream: stream$Stream): void;
   declare function createInterface(opts: {
-    completer?: readline$InterfaceCompleter,
-    crlfDelay?: number,
-    escapeCodeTimeout?: number,
-    historySize?: number,
     input: stream$Readable,
     output?: ?stream$Stream,
-    prompt?: string,
-    removeHistoryDuplicates?: boolean,
+    completer?: readline$InterfaceCompleter,
     terminal?: boolean,
+    historySize?: number,
+    prompt?: string,
+    crlfDelay?: number,
+    removeHistoryDuplicates?: boolean,
+    escapeCodeTimeout?: number,
     ...
   }): readline$Interface;
   declare function cursorTo(
     stream: stream$Stream,
     x?: number,
     y?: number,
-    callback?: () => void,
   ): void;
   declare function moveCursor(
     stream: stream$Stream,
     dx: number,
     dy: number,
-    callback?: () => void,
   ): void;
   declare function emitKeypressEvents(
     stream: stream$Stream,
@@ -3057,30 +3044,30 @@ type util$InspectOptions = {
 };
 
 declare type util$ParseArgsOption =
-  | $ReadOnly<{|
+  | {|
       type: 'boolean',
       multiple?: false,
       short?: string,
       default?: boolean,
-    |}>
-  | $ReadOnly<{|
+    |}
+  | {|
       type: 'boolean',
       multiple: true,
       short?: string,
       default?: Array<boolean>,
-    |}>
-  | $ReadOnly<{|
+    |}
+  | {|
       type: 'string',
       multiple?: false,
       short?: string,
       default?: string,
-    |}>
-  | $ReadOnly<{|
+    |}
+  | {|
       type: 'string',
       multiple: true,
       short?: string,
       default?: Array<string>,
-    |}>;
+    |};
 
 type util$ParseArgsOptionToValue<TOption> = TOption['type'] extends 'boolean'
   ? TOption['multiple'] extends true
@@ -3137,7 +3124,7 @@ declare module 'util' {
   declare function stripVTControlCharacters(str: string): string;
 
   declare function parseArgs<
-    TOptions: {+[string]: util$ParseArgsOption} = {||},
+    TOptions: {[string]: util$ParseArgsOption} = {||},
   >(config: {|
     args?: Array<string>,
     options?: TOptions,
@@ -3229,73 +3216,6 @@ 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$ScriptOptions = {
@@ -3995,16 +3915,13 @@ declare class Process extends events$EventEmitter {
   initgroups?: (user: number | string, extra_group: number | string) => void;
   kill(pid: number, signal?: string | number): void;
   mainModule: Object;
-  memoryUsage: {
-    (): {
-      arrayBuffers: number,
-      rss: number,
-      heapTotal: number,
-      heapUsed: number,
-      external: number,
-      ...
-    },
-    rss: () => number,
+  memoryUsage(): {
+    arrayBuffers: number,
+    rss: number,
+    heapTotal: number,
+    heapUsed: number,
+    external: number,
+    ...
   };
   nextTick: <T>(cb: (...T) => mixed, ...T) => void;
   pid: number;

flow-typed/npm/@expo/spawn-async_v1.x.x.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.
- *
- * @flow strict-local
- * @format
- */
-
-declare module '@expo/spawn-async' {
-  type SpawnOptions = {
-    cwd?: string,
-    env?: Object,
-    argv0?: string,
-    stdio?: string | Array<any>,
-    detached?: boolean,
-    uid?: number,
-    gid?: number,
-    shell?: boolean | string,
-    windowsVerbatimArguments?: boolean,
-    windowsHide?: boolean,
-    encoding?: string,
-    ignoreStdio?: boolean,
-  };
-
-  declare class SpawnPromise<T> extends Promise<T> {
-    child: child_process$ChildProcess;
-  }
-  type SpawnResult = {
-    pid?: number,
-    output: string[],
-    stdout: string,
-    stderr: string,
-    status: number | null,
-    signal: string | null,
-  };
-
-  declare function spawnAsync(
-    command: string,
-    args?: $ReadOnlyArray<string>,
-    options?: SpawnOptions,
-  ): SpawnPromise<SpawnResult>;
-
-  declare module.exports: typeof spawnAsync;
-}

flow-typed/npm/@octokit/rest_v22.x.x.js

@@ -1,61 +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
- */
-
-// Partial types for Octokit based on the usage in react-native-github
-declare module '@octokit/rest' {
-  declare class Octokit {
-    constructor(options?: {auth?: string, ...}): this;
-
-    repos: $ReadOnly<{
-      listReleaseAssets: (
-        params: $ReadOnly<{
-          owner: string,
-          repo: string,
-          release_id: string,
-        }>,
-      ) => Promise<{
-        data: Array<{
-          id: string,
-          name: string,
-          ...
-        }>,
-        ...
-      }>,
-      uploadReleaseAsset: (
-        params: $ReadOnly<{
-          owner: string,
-          repo: string,
-          release_id: string,
-          name: string,
-          data: Buffer,
-          headers: $ReadOnly<{
-            'content-type': string,
-            ...
-          }>,
-          ...
-        }>,
-      ) => Promise<{
-        data: {
-          browser_download_url: string,
-          ...
-        },
-        ...
-      }>,
-      deleteReleaseAsset: (params: {
-        owner: string,
-        repo: string,
-        asset_id: string,
-        ...
-      }) => Promise<mixed>,
-    }>;
-  }
-
-  declare export {Octokit};
-}

flow-typed/npm/@react-native-community/cli-server-api_v12.x.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict
  * @format
+ * @oncall react_native
  */
 
 declare module '@react-native-community/cli-server-api' {
@@ -41,4 +42,6 @@ declare module '@react-native-community/cli-server-api' {
     },
     ...
   };
+
+  declare export const indexPageMiddleware: NextHandleFunction;
 }

flow-typed/npm/@react-native-community/cli-tools_v12.x.x.js

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict
+ * @format
+ * @oncall react_native
+ */
+
+declare module '@react-native-community/cli-tools' {
+  declare export class CLIError extends Error {
+    constructor(msg: string, originalError?: Error | mixed | string): this;
+  }
+
+  declare export const logger: $ReadOnly<{
+    debug: (...message: Array<string>) => void,
+    error: (...message: Array<string>) => void,
+    log: (...message: Array<string>) => void,
+    info: (...message: Array<string>) => void,
+    warn: (...message: Array<string>) => void,
+    ...
+  }>;
+
+  declare export const version: $ReadOnly<{
+    logIfUpdateAvailable: (projectRoot: string) => Promise<void>,
+  }>;
+}

flow-typed/npm/@react-native-community/cli-types_v12.x.x.js

@@ -6,18 +6,19 @@
  *
  * @flow
  * @format
+ * @oncall react_native
  */
 
 declare module '@react-native-community/cli-types' {
-  declare type CommandFunction<Args = Object> = (
+  declare export type CommandFunction<Args = Object> = (
     argv: Array<string>,
     ctx: Config,
     args: Args,
   ) => Promise<void> | void;
 
-  declare type OptionValue = string | boolean | number;
+  declare export type OptionValue = string | boolean | number;
 
-  declare type CommandOption<T = (ctx: Config) => OptionValue> = {
+  declare export type CommandOption<T = (ctx: Config) => OptionValue> = {
     name: string,
     description?: string,
     parse?: (val: string) => any,

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/actual-request-url_v1.x.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict-local
  * @format
+ * @oncall react_native
  */
 
 declare module 'actual-request-url' {

flow-typed/npm/babel-traverse_v7.x.x.js

@@ -6,6 +6,7 @@
  *
  * @flow
  * @format
+ * @oncall react_native
  */
 
 // The sections between BEGIN GENERATED and END GENERATED are generated
@@ -1015,7 +1016,6 @@ declare module '@babel/traverse' {
     isTSDeclareFunction(opts?: Opts): boolean;
     isTSDeclareMethod(opts?: Opts): boolean;
     isTSEntityName(opts?: Opts): boolean;
-    isTSEnumBody(opts?: Opts): boolean;
     isTSEnumDeclaration(opts?: Opts): boolean;
     isTSEnumMember(opts?: Opts): boolean;
     isTSExportAssignment(opts?: Opts): boolean;
@@ -1053,7 +1053,6 @@ declare module '@babel/traverse' {
     isTSSatisfiesExpression(opts?: Opts): boolean;
     isTSStringKeyword(opts?: Opts): boolean;
     isTSSymbolKeyword(opts?: Opts): boolean;
-    isTSTemplateLiteralType(opts?: Opts): boolean;
     isTSThisType(opts?: Opts): boolean;
     isTSTupleType(opts?: Opts): boolean;
     isTSType(opts?: Opts): boolean;
@@ -1334,7 +1333,6 @@ declare module '@babel/traverse' {
     assertTSDeclareFunction(opts?: Opts): void;
     assertTSDeclareMethod(opts?: Opts): void;
     assertTSEntityName(opts?: Opts): void;
-    assertTSEnumBody(opts?: Opts): void;
     assertTSEnumDeclaration(opts?: Opts): void;
     assertTSEnumMember(opts?: Opts): void;
     assertTSExportAssignment(opts?: Opts): void;
@@ -1372,7 +1370,6 @@ declare module '@babel/traverse' {
     assertTSSatisfiesExpression(opts?: Opts): void;
     assertTSStringKeyword(opts?: Opts): void;
     assertTSSymbolKeyword(opts?: Opts): void;
-    assertTSTemplateLiteralType(opts?: Opts): void;
     assertTSThisType(opts?: Opts): void;
     assertTSTupleType(opts?: Opts): void;
     assertTSType(opts?: Opts): void;
@@ -1742,7 +1739,6 @@ declare module '@babel/traverse' {
     TSDeclareFunction?: VisitNode<BabelNodeTSDeclareFunction, TState>,
     TSDeclareMethod?: VisitNode<BabelNodeTSDeclareMethod, TState>,
     TSEntityName?: VisitNode<BabelNodeTSEntityName, TState>,
-    TSEnumBody?: VisitNode<BabelNodeTSEnumBody, TState>,
     TSEnumDeclaration?: VisitNode<BabelNodeTSEnumDeclaration, TState>,
     TSEnumMember?: VisitNode<BabelNodeTSEnumMember, TState>,
     TSExportAssignment?: VisitNode<BabelNodeTSExportAssignment, TState>,
@@ -1795,7 +1791,6 @@ declare module '@babel/traverse' {
     TSSatisfiesExpression?: VisitNode<BabelNodeTSSatisfiesExpression, TState>,
     TSStringKeyword?: VisitNode<BabelNodeTSStringKeyword, TState>,
     TSSymbolKeyword?: VisitNode<BabelNodeTSSymbolKeyword, TState>,
-    TSTemplateLiteralType?: VisitNode<BabelNodeTSTemplateLiteralType, TState>,
     TSThisType?: VisitNode<BabelNodeTSThisType, TState>,
     TSTupleType?: VisitNode<BabelNodeTSTupleType, TState>,
     TSType?: VisitNode<BabelNodeTSType, TState>,

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

@@ -0,0 +1,104 @@
+/**
+ * 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
+ * @oncall react_native
+ */
+
+declare module 'chalk' {
+  declare type TemplateStringsArray = $ReadOnlyArray<string>;
+
+  declare type Level = $Values<{
+    None: 0,
+    Basic: 1,
+    Ansi256: 2,
+    TrueColor: 3,
+    ...
+  }>;
+
+  declare type ChalkOptions = {
+    enabled?: boolean,
+    level?: Level,
+  };
+
+  declare type ColorSupport = {
+    level: Level,
+    hasBasic: boolean,
+    has256: boolean,
+    has16m: boolean,
+  };
+
+  declare type Chalk = {
+    (...text: string[]): string,
+    (text: TemplateStringsArray, ...placeholders: string[]): string,
+    Instance(options?: ChalkOptions): Chalk,
+    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,
+    +bgWhiteBrigh: Chalk,
+
+    supportsColor: ColorSupport,
+  };
+
+  declare module.exports: Chalk;
+}

flow-typed/npm/chrome-launcher_v0.15.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict
  * @format
+ * @oncall react_native
  */
 
 declare module 'chrome-launcher' {

flow-typed/npm/chromium-edge-launcher_v0.2.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict
  * @format
+ * @oncall react_native
  */
 
 declare module 'chromium-edge-launcher' {

flow-typed/npm/commander_v12.x.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict
  * @format
+ * @oncall react_native
  * @generated
  */
 
@@ -316,7 +317,7 @@ declare module 'commander' {
      */
     formatHelp(cmd: Command, helper: Help): string;
   }
-  export type HelpConfiguration = Partial<Help>;
+  export type HelpConfiguration = $Rest<Help, {...}>;
   export interface ParseOptions {
     from: 'node' | 'electron' | 'user';
   }

flow-typed/npm/connect_v3.x.x.js

@@ -6,6 +6,7 @@
  *
  * @flow strict
  * @format
+ * @oncall react_native
  */
 
 declare module 'connect' {

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/debug_v2.x.x.js

@@ -0,0 +1,28 @@
+/**
+ * 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
+ */
+
+// https://github.com/visionmedia/debug
+// https://www.npmjs.com/package/debug
+
+interface DebugFN {
+  (...args: Array<mixed>): void;
+  enable(match: string): void;
+  disable(): void;
+  enabled: () => boolean;
+}
+
+declare module 'debug' {
+  declare module.exports: {
+    (namespace: string): DebugFN,
+    enable(match: string): void,
+    disable(): void,
+    enabled: () => boolean,
+  };
+}

flow-typed/npm/debug_v4.4.x.js

@@ -1,54 +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
- * @format
- */
-
-// stubbed from https://github.com/DefinitelyTyped/DefinitelyTyped/blob/451dc8fc19383bc12af59522020e571957f1684e/types/debug/index.d.ts
-
-declare module 'debug' {
-  declare interface Formatters {
-    [formatter: string]: (v: mixed) => string;
-  }
-
-  declare type Debugger = {|
-    (format: mixed, ...args: Array<mixed>): void,
-    color: string,
-    diff: number,
-    enabled: boolean,
-    log: (format: mixed, ...args: Array<mixed>) => mixed,
-    namespace: string,
-    destroy: () => boolean,
-    extend: (namespace: string, delimiter?: string) => Debugger,
-  |};
-
-  declare type Debug = {|
-    (namespace: string): Debugger,
-    coerce: (val: mixed) => mixed,
-    disable: () => string,
-    enable: (namespaces: string) => void,
-    enabled: (namespaces: string) => boolean,
-    formatArgs: (args: Array<mixed>) => void,
-    log: (format: mixed, ...args: Array<mixed>) => mixed,
-    selectColor: (namespace: string) => string | number,
-    // this should be of type require('ms') but it doesn't play nicely with eslint
-    // unless we add ms to dependencies, which we don't want to do
-    humanize: $FlowFixMe,
-    names: RegExp[],
-    skips: RegExp[],
-    formatters: Formatters,
-    inspectOpts?: {
-      hideDate?: boolean | number | null,
-      colors?: boolean | number | null,
-      depth?: boolean | number | null,
-      showHidden?: boolean | number | null,
-      ...
-    },
-  |};
-
-  declare module.exports: Debug;
-}