fix hermes param handling in test-e2e-local.js

.circleci/README.md

@@ -0,0 +1,4 @@
+# Circle CI
+
+This directory was home to the Circle CI configuration files.
+In July 2024 we moved to GitHub Actions, and week this folder for backward compatibility, as we want to keep on using Circle CI for the release of React Native <= 0.74.

.circleci/config.yml

@@ -0,0 +1,13 @@
+version: 2.1
+workflows:
+  version: 2
+  stub:
+    jobs:
+      - circleci-stub
+
+jobs:
+  circleci-stub:
+    docker:
+      - image: debian:bullseye
+    steps:
+      - run: echo "There is nothing here, just an empty job. Everything has been moved to GitHub Action"

.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

@@ -3,16 +3,15 @@
 docs/generatedComponentApiDocs.js
 packages/react-native/flow/
 packages/react-native/sdks/
-packages/react-native/ReactAndroid/build
 packages/react-native/ReactAndroid/hermes-engine/build/
 packages/react-native/Libraries/Renderer/*
 packages/react-native/Libraries/vendor/**/*
 node_modules/
 packages/*/node_modules
 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 +27,12 @@ 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',
-      },
-    },
-    {
-      files: [
-        './packages/react-native/Libraries/**/*.{js,flow}',
-        './packages/react-native/src/**/*.{js,flow}',
-        './packages/assets/registry.js',
-      ],
-      parser: 'hermes-eslint',
-      rules: {
-        '@react-native/monorepo/no-commonjs-exports': 'warn',
+        '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,
       },
     },
     {
@@ -64,17 +42,15 @@ 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 +59,11 @@ 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 +114,5 @@ 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/
@@ -47,9 +44,8 @@ packages/react-native/flow/
 
 [options]
 enums=true
-experimental.pattern_matching=true
+as_const=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
+^0.255.0

.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:
@@ -69,10 +69,10 @@ body:
   - type: textarea
     id: react-native-info
     attributes:
-      label: Output of `npx @react-native-community/cli info`
-      description: Run `npx @react-native-community/cli info` in your terminal, copy and paste the results here.
+      label: Output of `npx react-native info`
+      description: Run `npx react-native info` in your terminal, copy and paste the results here.
       placeholder: |
-        Paste the output of `npx @react-native-community/cli info` here. The output looks like:
+        Paste the output of `npx react-native info` here. The output looks like:
         ...
         System:
           OS: macOS 14.1.1
@@ -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
@@ -48,10 +48,10 @@ body:
   - type: textarea
     id: react-native-info
     attributes:
-      label: Output of `npx @react-native-community/cli info`
-      description: Run `npx @react-native-community/cli info` in your terminal, copy and paste the results here.
+      label: Output of `npx react-native info`
+      description: Run `npx react-native info` in your terminal, copy and paste the results here.
       placeholder: |
-        Paste the output of `npx @react-native-community/cli info` here. The output looks like:
+        Paste the output of `npx react-native info` here. The output looks like:
         ...
         System:
           OS: macOS 14.1.1
@@ -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:
@@ -81,10 +81,10 @@ body:
   - type: textarea
     id: react-native-info
     attributes:
-      label: Output of `npx @react-native-community/cli info`
-      description: Run `npx @react-native-community/cli info` in your terminal, copy and paste the results here.
+      label: Output of `npx react-native info`
+      description: Run `npx react-native info` in your terminal, copy and paste the results here.
       placeholder: |
-        Paste the output of `npx @react-native-community/cli info` here. The output looks like:
+        Paste the output of `npx react-native info` here. The output looks like:
         ...
         System:
           OS: macOS 14.1.1
@@ -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

@@ -4,8 +4,9 @@ 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"
+  run-e2e-tests:
+    default: 'false'
+    description: If we need to build to run E2E tests. If yes, we need to build also x86.
 runs:
   using: composite
   steps:
@@ -15,27 +16,22 @@ runs:
     - name: Setup node.js
       uses: ./.github/actions/setup-node
     - name: Install node dependencies
-      uses: ./.github/actions/yarn-install
+      uses: ./.github/actions/yarn-install-with-cache
     - 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
       uses: ./.github/actions/setup-gradle
       with:
         cache-read-only: "false"
-        cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
     - name: Restore Android ccache
       uses: actions/cache/restore@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ 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 +40,11 @@ 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 [[ "${{ inputs.release-type }}" == "nightly" ]]; then
           # nightly: we set isSnapshot to true so artifacts are sent to the right repository on Maven Central.
@@ -60,7 +60,7 @@ runs:
       uses: actions/cache/save@v4
       with:
         path: /github/home/.cache/ccache
-        key: v2-ccache-android-${{ 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 +83,27 @@ 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-with-cache
+    - 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 +1,86 @@
+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)) {
+          choco install --no-progress cmake --version 3.14.7 --allow-downgrade
+          if (-not $?) { throw "Failed to install CMake" }
+
+          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

@@ -4,48 +4,109 @@ 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
     default: ''
-  gradle-cache-encryption-key:
-    description: The encryption key needed to store the Gradle Configuration cache
-
 runs:
   using: composite
   steps:
     - name: Setup git safe folders
       shell: bash
       run: git config --global --add safe.directory '*'
-    - 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
+    - name: Create /tmp/hermes/osx-bin directory
       shell: bash
-      run: ls -lR ./packages/react-native/ReactAndroid/external-artifacts/artifacts/
-    - name: Setup gradle
-      uses: ./.github/actions/setup-gradle
+      run: mkdir -p /tmp/hermes/osx-bin
+    - name: Download osx-bin release artifacts
+      uses: actions/download-artifact@v4
       with:
-        cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
+        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: Setup node.js
       uses: ./.github/actions/setup-node
+    - name: Setup gradle
+      uses: ./.github/actions/setup-gradle
     - name: Install dependencies
-      uses: ./.github/actions/yarn-install
+      uses: ./.github/actions/yarn-install-with-cache
     - 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

@@ -14,10 +14,8 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
     - name: Yarn install
-      uses: ./.github/actions/yarn-install
+      uses: ./.github/actions/yarn-install-with-cache
     - name: Configure Git
       shell: bash
       run: |

.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: "18"
   github-token:
     description: "The GitHub token used by pull-bot"
     required: true
@@ -15,8 +15,9 @@ runs:
       uses: ./.github/actions/setup-node
       with:
         node-version: ${{ inputs.node-version }}
-    - name: Run yarn install
-      uses: ./.github/actions/yarn-install
+    - name: Yarn install
+      shell: bash
+      run: yarn install --non-interactive --frozen-lockfile
     - name: Run linters against modified files (analysis-bot)
       shell: bash
       run: yarn lint-ci
@@ -25,13 +26,10 @@ runs:
         GITHUB_PR_NUMBER: ${{ github.event.number }}
     - 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
+      run: ./scripts/circleci/exec_swallow_error.sh yarn lint --format junit -o ./reports/junit/eslint/results.xml
+    - name: Lint java
       shell: bash
-      run: ./.github/workflow-scripts/lint_files.sh
-    - name: Verify not committing repo after running build
-      shell: bash
-      run: yarn run build --validate
+      run: ./scripts/circleci/exec_swallow_error.sh yarn lint-java --check
     - name: Run flowcheck
       shell: bash
       run: yarn flow-check
@@ -40,16 +38,7 @@ runs:
       run: yarn test-typescript
     - name: Check license
       shell: bash
-      run: ./.github/workflow-scripts/check_license.sh
+      run: ./scripts/circleci/check_license.sh
     - 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
@@ -28,7 +31,7 @@ runs:
   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=1.36.0; curl -Ls "https://get.maestro.mobile.dev" | bash
     - name: Set up JDK 17
       if: ${{ inputs.install-java == 'true' }}
       uses: actions/setup-java@v4
@@ -49,15 +52,12 @@ runs:
       if: ${{ inputs.flavor == 'debug' }}
       run: ./packages/react-native-codegen/scripts/oss/build.sh
     - name: Run e2e tests
-      id: run-tests
       uses: reactivecircus/android-emulator-runner@v2
       with:
         api-level: 24
         arch: x86
-        ram-size: '8192M'
-        heap-size: '4096M'
+        ram-size: '4096M'
         disk-size: '10G'
-        cores: '4'
         disable-animations: false
         avd-name: e2e_emulator
         script: node .github/workflow-scripts/maestro-android.js ${{ inputs.app-path }} ${{ inputs.app-id }} ${{ inputs.maestro-flow }} ${{ inputs.flavor }} ${{ inputs.working-directory }}
@@ -69,16 +69,16 @@ runs:
         NORM_APP_ID=$(echo "${{ inputs.app-id }}" | tr '.' '-')
         echo "app-id=$NORM_APP_ID" >> $GITHUB_OUTPUT
     - name: Store tests result
-      uses: actions/upload-artifact@v4.3.4
+      uses: actions/upload-artifact@v3
       if: always()
       with:
-        name: e2e_android_${{ 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 }}
         path: |
           report.xml
           screen.mp4
     - name: Store Logs
-      if: steps.run-tests.outcome == 'failure'
+      if: failure() && 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 }}
         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
@@ -24,28 +27,21 @@ runs:
   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=1.36.0; curl -Ls "https://get.maestro.mobile.dev" | bash
     - name: Installing Maestro dependencies
       shell: bash
       run: |
         brew tap facebook/fb
-        brew install facebook/fb/idb-companion
+        brew install facebook/fb/idb-companion jq
     - name: Set up JDK 11
       uses: actions/setup-java@v2
       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
       shell: bash
       if: ${{ inputs.flavor == 'Debug' }}
       run: |
-        # build codegen or we will see a redbox
-        ./packages/react-native-codegen/scripts/oss/build.sh
-
         cd ${{ inputs.working-directory }}
         yarn start &
         sleep 5 # to give metro time to load
@@ -57,18 +53,59 @@ runs:
         # Maestro can fail in case of flakyness, we have some retry logic.
         set +e
 
-        node .github/workflow-scripts/maestro-ios.js \
-          "${{ inputs.app-path }}" \
-          "${{ inputs.app-id }}" \
-          "${{ inputs.maestro-flow }}" \
-          "Hermes" \
-          "${{ inputs.flavor }}" \
-          "${{ inputs.working-directory }}"
+        echo "Launching iOS Simulator: iPhone 15 Pro"
+        xcrun simctl boot "iPhone 15 Pro"
+
+        echo "Installing app on Simulator"
+        xcrun simctl install booted "${{ inputs.app-path }}"
+
+        echo "Retrieving device UDID"
+        UDID=$(xcrun simctl list devices booted -j | jq -r '[.devices[]] | add | first | .udid')
+        echo "UDID is $UDID"
+
+        echo "Bring simulator in foreground"
+        open -a simulator
+
+        echo "Launch the app"
+        xcrun simctl launch $UDID ${{ inputs.app-id }}
+
+        if [[ ${{ inputs.flavor }} == 'Debug' ]]; then
+          # To give the app time to warm the metro's cache
+          sleep 20
+        fi
+
+        echo "Running tests with Maestro"
+        export MAESTRO_DRIVER_STARTUP_TIMEOUT=1500000 # 25 min. CI is extremely slow
+
+        # Add retries for flakyness
+        MAX_ATTEMPTS=5
+        CURR_ATTEMPT=0
+        RESULT=1
+
+        while [[ $CURR_ATTEMPT -lt $MAX_ATTEMPTS ]] && [[ $RESULT -ne 0 ]]; do
+          CURR_ATTEMPT=$((CURR_ATTEMPT+1))
+          echo "Attempt number $CURR_ATTEMPT"
+
+
+
+          echo "Start video record using pid: video_record_${{ inputs.jsengine }}_$CURR_ATTEMPT.pid"
+          xcrun simctl io booted recordVideo video_record_$CURR_ATTEMPT.mov & echo $! > video_record_${{ inputs.jsengine }}_$CURR_ATTEMPT.pid
+
+          echo '$HOME/.maestro/bin/maestro --udid=$UDID test ${{ inputs.maestro-flow }} --format junit -e APP_ID=${{ inputs.app-id }}'
+          $HOME/.maestro/bin/maestro --udid=$UDID test ${{ inputs.maestro-flow }} --format junit -e APP_ID=${{ inputs.app-id }} --debug-output /tmp/MaestroLogs
+
+          RESULT=$?
+
+          # Stop video
+          kill -SIGINT $(cat video_record_${{ inputs.jsengine }}_$CURR_ATTEMPT.pid)
+        done
+
+        exit $RESULT
     - name: Store video record
       if: always()
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: e2e_ios_${{ inputs.app-id }}_report_${{ inputs.flavor }}_NewArch
+        name: e2e_ios_${{ inputs.app-id }}_report_${{ inputs.jsengine }}_${{ inputs.flavor }}
         path: |
           video_record_1.mov
           video_record_2.mov
@@ -80,5 +117,5 @@ runs:
       if: failure() && steps.run-tests.outcome == 'failure'
       uses: actions/upload-artifact@v4.3.4
       with:
-        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.flavor }}-NewArch
+        name: maestro-logs-${{ inputs.app-id }}-${{ inputs.jsengine }}-${{ inputs.flavor }}
         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-with-cache
+
+    - 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-gradle/action.yml

@@ -4,8 +4,6 @@ inputs:
   cache-read-only:
     description: "Whether the Gradle Cache should be in read-only mode so this job won't be allowed to write to it"
     default: "true"
-  cache-encryption-key:
-    description: "The encryption key needed to store the Gradle Configuration cache"
 runs:
   using: "composite"
   steps:
@@ -17,7 +15,6 @@ runs:
         cache-read-only: ${{ (github.ref != 'refs/heads/main' && !contains(github.ref, '-stable')) || inputs.cache-read-only == 'true' }}
         # Similarly, for those jobs we want to start with a clean cache so it doesn't grow without limits (this is the negation of the previous condition).
         cache-write-only: ${{ (github.ref == 'refs/heads/main' || contains(github.ref, '-stable')) && inputs.cache-read-only != 'true' }}
+        # Temporarily disabling to try resolve a cache cleanup failure
+        # gradle-home-cache-cleanup: true
         add-job-summary-as-pr-comment: on-failure
-        # Encryption key for the Gradle Configuration Cache.
-        # See https://docs.gradle.org/8.6/userguide/configuration_cache.html#config_cache:secrets:configuring_encryption_key
-        cache-encryption-key: ${{ inputs.cache-encryption-key }}

.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: '18'
 runs:
   using: "composite"
   steps:
@@ -12,4 +12,3 @@ runs:
       uses: actions/setup-node@v4
       with:
         node-version: ${{ inputs.node-version }}
-        cache: yarn

.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
-      uses: ./.github/actions/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-with-cache
     - 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
@@ -23,57 +38,96 @@ 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
+      uses: ./.github/actions/yarn-install-with-cache
+    - 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 }} == "NewArch" ]]; then
+          export RCT_NEW_ARCH_ENABLED=1
+        fi
+
         cd packages/rn-tester
 
         bundle install
-        bundle exec pod update hermes-engine --no-repo-update
+        bundle exec pod install
     - name: Build RNTester
+      if: ${{ inputs.run-unit-tests != 'true' && inputs.run-e2e-tests == 'false' }}
       shell: bash
+      run: |
+        xcodebuild build \
+          -workspace packages/rn-tester/RNTesterPods.xcworkspace \
+          -scheme RNTester \
+          -sdk iphonesimulator
+    - name: Build RNTester (E2E Tests)
+      shell: bash
+      if: ${{ inputs.run-e2e-tests == 'true' }}
       run: |
         xcodebuild \
           -scheme "RNTester" \
@@ -84,10 +138,7 @@ runs:
           -derivedDataPath "/tmp/RNTesterBuild"
 
           echo "Print path to *.app file"
-          APP_PATH=$(find "/tmp/RNTesterBuild" -type d -name "*.app")
-
-          echo "App found at $APP_PATH"
-          echo "app-path=$APP_PATH" >> $GITHUB_ENV
+          find "/tmp/RNTesterBuild" -type d -name "*.app"
     - name: "Run Tests: iOS Unit and Integration Tests"
       if: ${{ inputs.run-unit-tests == 'true' }}
       shell: bash
@@ -107,12 +158,6 @@ runs:
       with:
         name: xcresults
         path: /Users/distiller/Library/Developer/Xcode/xcresults.tar.gz
-    - name: Upload RNTester App
-      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 }}
-        path: ${{ env.app-path }}
     - name: Store test results
       if: ${{ inputs.run-unit-tests == 'true' }}
       uses: actions/upload-artifact@v4.3.4

.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: "18"
 runs:
   using: composite
   steps:
@@ -13,7 +13,7 @@ runs:
       with:
         node-version: ${{ inputs.node-version }}
     - name: Yarn install
-      uses: ./.github/actions/yarn-install
+      uses: ./.github/actions/yarn-install-with-cache
     - name: Run Tests - JavaScript Tests
       shell: bash
       run: node ./scripts/run-ci-javascript-tests.js --maxWorkers 2

.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/actions/yarn-install-with-cache/action.yml

@@ -0,0 +1,28 @@
+name: yarn-install-with-cache
+inputs:
+  update-cache:
+    description: Update the cache, only do this if you are update-node-modules-cache.yml
+    default: "false"
+description: Only update node_modules if on main
+runs:
+  using: composite
+  steps:
+    - name: Load node_modules from cache
+      # Restore for all branches, but save for 'main'.
+      uses: actions/cache/restore@v4
+      with:
+        path: node_modules/
+        key: node-modules-${{ hashFiles('package.json') }}
+    - name: Install dependencies
+      shell: bash
+      run: yarn install --non-interactive
+    - name: Save node_modules to the cache
+      if: github.ref == 'refs/heads/main' && inputs.update-cache == 'true'
+      uses: actions/cache/save@v4
+      with:
+        path: node_modules/
+        # We're assuming that variations on branches will slightly vary from main,
+        # so it's always important to run yarn install --non-interactive after this
+        # cache is restored.
+        key: node-modules-v1-${{ hashFiles('package.json') }}
+        enableCrossOsArchive: true

.github/actions/yarn-install/action.yml

@@ -1,20 +0,0 @@
-name: yarn-install
-runs:
-  using: composite
-  steps:
-    - name: Install dependencies
-      shell: bash
-      run: |
-        MAX_ATTEMPTS=2
-        ATTEMPT=0
-        WAIT_TIME=20
-        while [ $ATTEMPT -lt $MAX_ATTEMPTS ]; do
-            yarn install --non-interactive --frozen-lockfile && break
-            echo "yarn install failed. Retrying in $WAIT_TIME seconds..."
-            sleep $WAIT_TIME
-            ATTEMPT=$((ATTEMPT + 1))
-        done
-        if [ $ATTEMPT -eq $MAX_ATTEMPTS ]; then
-            echo "All attempts to invoke yarn install failed - Aborting the workflow"
-            exit 1
-        fi

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

@@ -1,311 +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', async () => {
-      const version = '0.77.1';
-      const changelog = `## v${version}
-### Breaking Changes
-- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
-
-#### Android
-- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
-- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
-
-#### iOS
-- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
-- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`;
-      const body = _computeBody(version, changelog);
-
-      expect(body).toEqual(`${changelog}
-
----
-
-Hermes dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${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)
-
----
-
-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

@@ -15,7 +15,6 @@ const {
 const mockRun = jest.fn();
 const mockSleep = jest.fn();
 const mockGetNpmPackageInfo = jest.fn();
-const mockVerifyPublishedPackage = jest.fn();
 const silence = () => {};
 
 jest.mock('../utils.js', () => ({
@@ -25,10 +24,6 @@ jest.mock('../utils.js', () => ({
   getNpmPackageInfo: mockGetNpmPackageInfo,
 }));
 
-jest.mock('../verifyPublishedPackage.js', () => ({
-  verifyPublishedPackage: mockVerifyPublishedPackage,
-}));
-
 const getMockGithub = () => ({
   rest: {
     actions: {
@@ -87,43 +82,77 @@ describe('#verifyPublishedTemplate', () => {
 
   it("waits on npm updating for version and not 'latest'", async () => {
     const NOT_LATEST = false;
-    const version = '0.77.0';
+    mockGetNpmPackageInfo
+      // template@<version>
+      .mockReturnValueOnce(Promise.reject('mock http/404'))
+      .mockReturnValueOnce(Promise.resolve());
+    mockSleep.mockReturnValueOnce(Promise.resolve()).mockImplementation(() => {
+      throw new Error('Should not be called again!');
+    });
 
+    const version = '0.77.0';
     await verifyPublishedTemplate(version, NOT_LATEST);
 
-    expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
+    expect(mockGetNpmPackageInfo).toHaveBeenLastCalledWith(
       '@react-native-community/template',
       version,
-      null,
-      18,
     );
   });
 
   it('waits on npm updating version and latest tag', async () => {
     const IS_LATEST = true;
     const version = '0.77.0';
+    mockGetNpmPackageInfo
+      // template@latest → unknown tag
+      .mockReturnValueOnce(Promise.reject('mock http/404'))
+      // template@latest != version → old tag
+      .mockReturnValueOnce(Promise.resolve({version: '0.76.5'}))
+      // template@latest == version → correct tag
+      .mockReturnValueOnce(Promise.resolve({version}));
+    mockSleep
+      .mockReturnValueOnce(Promise.resolve())
+      .mockReturnValueOnce(Promise.resolve())
+      .mockImplementation(() => {
+        throw new Error('Should not be called again!');
+      });
 
     await verifyPublishedTemplate(version, IS_LATEST);
 
-    expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
+    expect(mockGetNpmPackageInfo).toHaveBeenCalledWith(
       '@react-native-community/template',
-      version,
       'latest',
-      18,
     );
   });
 
-  describe('retries', () => {
+  describe('timeouts', () => {
+    let mockProcess;
+    beforeEach(() => {
+      mockProcess = jest.spyOn(process, 'exit').mockImplementation(code => {
+        throw new Error(`process.exit(${code}) called!`);
+      });
+    });
+    afterEach(() => mockProcess.mockRestore());
     it('will timeout if npm does not update package version after a set number of retries', async () => {
       const RETRIES = 2;
+      mockGetNpmPackageInfo.mockReturnValue(Promise.reject('mock http/404'));
+      mockSleep.mockReturnValue(Promise.resolve());
+      await expect(() =>
+        verifyPublishedTemplate('0.77.0', true, RETRIES),
+      ).rejects.toThrowError('process.exit(1) called!');
+      expect(mockGetNpmPackageInfo).toHaveBeenCalledTimes(RETRIES);
+    });
 
-      (await verifyPublishedTemplate('0.77.0', true, RETRIES),
-        expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
-          '@react-native-community/template',
-          '0.77.0',
-          'latest',
-          2,
-        ));
+    it('will timeout if npm does not update latest tag after a set number of retries', async () => {
+      const RETRIES = 7;
+      const IS_LATEST = true;
+      mockGetNpmPackageInfo.mockReturnValue(
+        Promise.resolve({version: '0.76.5'}),
+      );
+      mockSleep.mockReturnValue(Promise.resolve());
+      await expect(async () => {
+        await verifyPublishedTemplate('0.77.0', IS_LATEST, RETRIES);
+      }).rejects.toThrowError('process.exit(1) called!');
+      expect(mockGetNpmPackageInfo).toHaveBeenCalledTimes(RETRIES);
     });
   });
 });

.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__/verifyPublishedPackage-test.js

@@ -1,135 +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 {verifyPublishedPackage} = require('../verifyPublishedPackage');
-
-const mockRun = jest.fn();
-const mockSleep = jest.fn();
-const mockGetNpmPackageInfo = jest.fn();
-const silence = () => {};
-
-const REACT_NATIVE_PACKAGE = 'react-native';
-
-jest.mock('../utils.js', () => ({
-  log: silence,
-  run: mockRun,
-  sleep: mockSleep,
-  getNpmPackageInfo: mockGetNpmPackageInfo,
-}));
-
-describe('#verifyPublishedPackage', () => {
-  beforeEach(jest.clearAllMocks);
-
-  it("waits on npm updating for version and not 'latest'", async () => {
-    mockGetNpmPackageInfo
-      // template@<version>
-      .mockReturnValueOnce(Promise.reject('mock http/404'))
-      .mockReturnValueOnce(Promise.resolve());
-    mockSleep.mockReturnValueOnce(Promise.resolve()).mockImplementation(() => {
-      throw new Error('Should not be called again!');
-    });
-
-    const version = '0.78.0';
-    await verifyPublishedPackage(REACT_NATIVE_PACKAGE, version, null);
-
-    expect(mockGetNpmPackageInfo).toHaveBeenLastCalledWith(
-      REACT_NATIVE_PACKAGE,
-      version,
-    );
-  });
-
-  it('waits on npm updating version and latest tag', async () => {
-    const version = '0.78.0';
-    mockGetNpmPackageInfo
-      // template@latest → unknown tag
-      .mockReturnValueOnce(Promise.reject('mock http/404'))
-      // template@latest != version → old tag
-      .mockReturnValueOnce(Promise.resolve({version: '0.76.5'}))
-      // template@latest == version → correct tag
-      .mockReturnValueOnce(Promise.resolve({version}));
-    mockSleep
-      .mockReturnValueOnce(Promise.resolve())
-      .mockReturnValueOnce(Promise.resolve())
-      .mockImplementation(() => {
-        throw new Error('Should not be called again!');
-      });
-
-    await verifyPublishedPackage(REACT_NATIVE_PACKAGE, version, 'latest');
-
-    expect(mockGetNpmPackageInfo).toHaveBeenCalledWith(
-      REACT_NATIVE_PACKAGE,
-      'latest',
-    );
-  });
-
-  it('waits on npm updating version and next tag', async () => {
-    const version = '0.78.0-rc.0';
-    mockGetNpmPackageInfo
-      // template@latest → unknown tag
-      .mockReturnValueOnce(Promise.reject('mock http/404'))
-      // template@latest != version → old tag
-      .mockReturnValueOnce(Promise.resolve({version: '0.76.5'}))
-      // template@latest == version → correct tag
-      .mockReturnValueOnce(Promise.resolve({version}));
-    mockSleep
-      .mockReturnValueOnce(Promise.resolve())
-      .mockReturnValueOnce(Promise.resolve())
-      .mockImplementation(() => {
-        throw new Error('Should not be called again!');
-      });
-    await verifyPublishedPackage(REACT_NATIVE_PACKAGE, version, 'next');
-
-    expect(mockGetNpmPackageInfo).toHaveBeenCalledWith(
-      REACT_NATIVE_PACKAGE,
-      'next',
-    );
-  });
-
-  describe('timeouts', () => {
-    let mockProcess;
-    beforeEach(() => {
-      mockProcess = jest.spyOn(process, 'exit').mockImplementation(code => {
-        throw new Error(`process.exit(${code}) called!`);
-      });
-    });
-    afterEach(() => mockProcess.mockRestore());
-    it('will timeout if npm does not update package version after a set number of retries', async () => {
-      const RETRIES = 2;
-      mockGetNpmPackageInfo.mockReturnValue(Promise.reject('mock http/404'));
-      mockSleep.mockReturnValue(Promise.resolve());
-      await expect(() =>
-        verifyPublishedPackage(
-          REACT_NATIVE_PACKAGE,
-          '0.77.0',
-          'latest',
-          RETRIES,
-        ),
-      ).rejects.toThrowError('process.exit(1) called!');
-      expect(mockGetNpmPackageInfo).toHaveBeenCalledTimes(RETRIES);
-    });
-
-    it('will timeout if npm does not update latest tag after a set number of retries', async () => {
-      const RETRIES = 7;
-      const IS_LATEST = true;
-      mockGetNpmPackageInfo.mockReturnValue(
-        Promise.resolve({version: '0.76.5'}),
-      );
-      mockSleep.mockReturnValue(Promise.resolve());
-      await expect(async () => {
-        await verifyPublishedPackage(
-          REACT_NATIVE_PACKAGE,
-          '0.77.0',
-          'latest',
-          RETRIES,
-        );
-      }).rejects.toThrowError('process.exit(1) called!');
-      expect(mockGetNpmPackageInfo).toHaveBeenCalledTimes(RETRIES);
-    });
-  });
-});

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

@@ -1,109 +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 {verifyReleaseOnNpm} = require('../verifyReleaseOnNpm');
-
-const mockVerifyPublishedPackage = jest.fn();
-const silence = () => {};
-
-jest.mock('../utils.js', () => ({
-  log: silence,
-  sleep: silence,
-}));
-
-jest.mock('../verifyPublishedPackage.js', () => ({
-  verifyPublishedPackage: mockVerifyPublishedPackage,
-}));
-
-describe('#verifyReleaseOnNPM', () => {
-  beforeEach(jest.clearAllMocks);
-
-  it("waits on npm updating for version and not 'latest'", async () => {
-    const NOT_LATEST = false;
-    const version = '0.78.0';
-    await verifyReleaseOnNpm(version, NOT_LATEST);
-
-    expect(mockVerifyPublishedPackage).toHaveBeenLastCalledWith(
-      'react-native',
-      version,
-      null,
-      18,
-    );
-  });
-
-  it('waits on npm updating version and latest tag', async () => {
-    const IS_LATEST = true;
-    const version = '0.78.0';
-
-    await verifyReleaseOnNpm(version, IS_LATEST);
-
-    expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
-      'react-native',
-      version,
-      'latest',
-      18,
-    );
-  });
-
-  it('waits on npm updating version, not latest and next tag', async () => {
-    const IS_LATEST = false;
-    const version = '0.78.0-rc.0';
-
-    await verifyReleaseOnNpm(version, IS_LATEST);
-
-    expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
-      'react-native',
-      version,
-      'next',
-      18,
-    );
-  });
-
-  it('waits on npm updating version, latest and next tag', async () => {
-    const IS_LATEST = true;
-    const version = '0.78.0-rc.0';
-
-    await verifyReleaseOnNpm(version, IS_LATEST);
-
-    expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
-      'react-native',
-      version,
-      'next',
-      18,
-    );
-  });
-
-  describe('timeouts', () => {
-    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),
-        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 () => {
-      const RETRIES = 7;
-      const IS_LATEST = true;
-
-      await verifyReleaseOnNpm('0.77.0', IS_LATEST, RETRIES);
-
-      expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
-        'react-native',
-        '0.77.0',
-        'latest',
-        7,
-      );
-    });
-  });
-});

.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

@@ -1,24 +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.
-
-export GITHUB_OWNER=-facebook
-export GITHUB_REPO=-react-native
-
-{
-  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
-
-STATUS=$?
-if [ $STATUS == 0 ]; then
-  echo "Code analyzed successfully."
-else
-  echo "Code analysis failed, error status $STATUS."
-fi
-exit $STATUS

.github/workflow-scripts/analyze_scripts.sh

@@ -1,25 +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.
-
-GITHUB_OWNER=-facebook
-GITHUB_REPO=-react-native
-export GITHUB_OWNER
-export GITHUB_REPO
-
-if [ -x "$(command -v shellcheck)" ]; then
-  IFS=$'\n'
-
-  find . \
-    -type f \
-    -not -path "*node_modules*" \
-    -not -path "*third-party*" \
-    -name '*.sh' \
-    -exec sh -c 'shellcheck "$1"' -- {} \;
-
-else
-  echo 'shellcheck is not installed. See https://github.com/facebook/react-native/wiki/Development-Dependencies#shellcheck for instructions.'
-  exit 1
-fi

.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

@@ -1,142 +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(version, changelog) {
-  return `${changelog}
-
----
-
-Hermes dSYMS:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-hermes-framework-dSYM-debug.tar.gz)
-- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-hermes-framework-dSYM-release.tar.gz)
-
-ReactNativeDependencies dSYMs:
-- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${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-${version}-reactnative-dependencies-dSYM-release.tar.gz)
-
----
-
-You can file issues or pick requests against this release [here](https://github.com/reactwg/react-native-releases/issues/new/choose).
-
----
-
-To help you upgrade to this version, you can use the [Upgrade Helper](https://react-native-community.github.io/upgrade-helper/) ⚛️.
-
----
-
-View the whole changelog in the [CHANGELOG.md file](https://github.com/facebook/react-native/blob/main/CHANGELOG.md).`;
-}
-
-async function _verifyTagExists(version) {
-  const url = `https://github.com/facebook/react-native/releases/tag/v${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) {
-  if (version.startsWith('v')) {
-    version = version.substring(1);
-  }
-
-  _verifyTagExists(version);
-  moveToChangelogBranch(version);
-  const changelog = _extractChangelog(version);
-  const body = _computeBody(version, changelog);
-  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-android.js

@@ -8,7 +8,6 @@
  */
 
 const childProcess = require('child_process');
-const fs = require('fs');
 
 const usage = `
 === Usage ===
@@ -34,38 +33,6 @@ const MAESTRO_FLOW = args[2];
 const IS_DEBUG = args[3] === 'debug';
 const WORKING_DIRECTORY = args[4];
 
-const MAX_ATTEMPTS = 3;
-
-async function executeFlowWithRetries(flow, currentAttempt) {
-  try {
-    console.info(`Executing flow: ${flow}`);
-    const timeout = 1000 * 60 * 10; // 10 minutes
-    childProcess.execSync(
-      `MAESTRO_DRIVER_STARTUP_TIMEOUT=120000 $HOME/.maestro/bin/maestro test ${flow} --format junit -e APP_ID=${APP_ID} --debug-output /tmp/MaestroLogs`,
-      {stdio: 'inherit', timeout},
-    );
-  } catch (err) {
-    if (currentAttempt < MAX_ATTEMPTS) {
-      console.info(`Retrying...`);
-      await executeFlowWithRetries(flow, currentAttempt + 1);
-    } else {
-      throw err;
-    }
-  }
-}
-
-async function executeFlowInFolder(flowFolder) {
-  const files = fs.readdirSync(flowFolder);
-  for (const file of files) {
-    const filePath = `${flowFolder}/${file}`;
-    if (fs.lstatSync(filePath).isDirectory()) {
-      await executeFlowInFolder(filePath);
-    } else {
-      await executeFlowWithRetries(filePath, 0);
-    }
-  }
-}
-
 async function main() {
   console.info('\n==============================');
   console.info('Running tests for Android with the following parameters:');
@@ -88,21 +55,15 @@ async function main() {
       stdio: 'ignore',
       detached: true,
     });
-    metroProcess.unref();
     console.info(`- Metro PID: ${metroProcess.pid}`);
-
-    console.info('Wait For Metro to Start');
-    await sleep(5000);
   }
 
+  console.info('Wait For Metro to Start');
+  await sleep(5000);
+
   console.info('Start the app');
   childProcess.execSync(`adb shell monkey -p ${APP_ID} 1`, {stdio: 'ignore'});
 
-  if (IS_DEBUG) {
-    console.info('Wait For App to warm from Metro');
-    await sleep(10000);
-  }
-
   console.info('Start recording to /sdcard/screen.mp4');
   childProcess
     .exec('adb shell screenrecord /sdcard/screen.mp4', {
@@ -114,15 +75,10 @@ async function main() {
   console.info(`Start testing ${MAESTRO_FLOW}`);
   let error = null;
   try {
-    //check if MAESTRO_FLOW is a folder
-    if (
-      fs.existsSync(MAESTRO_FLOW) &&
-      fs.lstatSync(MAESTRO_FLOW).isDirectory()
-    ) {
-      await executeFlowInFolder(MAESTRO_FLOW);
-    } else {
-      await executeFlowWithRetries(MAESTRO_FLOW, 0);
-    }
+    childProcess.execSync(
+      `MAESTRO_DRIVER_STARTUP_TIMEOUT=120000 $HOME/.maestro/bin/maestro test ${MAESTRO_FLOW} --format junit -e APP_ID=${APP_ID} --debug-output /tmp/MaestroLogs`,
+      {stdio: 'inherit'},
+    );
   } catch (err) {
     error = err;
   } finally {
@@ -132,15 +88,15 @@ async function main() {
     if (IS_DEBUG && metroProcess != null) {
       const pid = metroProcess.pid;
       console.info(`Kill Metro. PID: ${pid}`);
-      process.kill(pid);
+      process.kill(-pid);
       console.info(`Metro Killed`);
+      process.exit();
     }
   }
 
   if (error) {
     throw error;
   }
-  process.exit();
 }
 
 function sleep(ms) {

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

@@ -1,176 +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 childProcess = require('child_process');
-const fs = require('fs');
-
-const usage = `
-=== Usage ===
-node maestro-android.js <path to app> <app_id> <maestro_flow> <flavor> <working_directory>
-
-@param {string} appPath - Path to the app APK
-@param {string} appId - App ID that needs to be launched
-@param {string} maestroFlow - Path to the maestro flow to be executed
-@param {string} jsengine - The JSEngine to use for the test
-@param {string} flavor - Flavor of the app to be launched. Can be 'Release' or 'Debug'
-@param {string} workingDirectory - Working directory from where to run Metro
-==============
-`;
-
-const args = process.argv.slice(2);
-
-if (args.length !== 6) {
-  throw new Error(`Invalid number of arguments.\n${usage}`);
-}
-
-const APP_PATH = args[0];
-const APP_ID = args[1];
-const MAESTRO_FLOW = args[2];
-const JS_ENGINE = args[3];
-const IS_DEBUG = args[4] === 'Debug';
-const WORKING_DIRECTORY = args[5];
-
-const MAX_ATTEMPTS = 5;
-
-function launchSimulator(simulatorName) {
-  console.log(`Launching simulator ${simulatorName}`);
-  try {
-    childProcess.execSync(`xcrun simctl boot "${simulatorName}"`);
-  } catch (error) {
-    if (
-      !error.message.includes('Unable to boot device in current state: Booted')
-    ) {
-      throw error;
-    }
-  }
-}
-
-function installAppOnSimulator(appPath) {
-  console.log(`Installing app at path ${appPath}`);
-  childProcess.execSync(`xcrun simctl install booted "${appPath}"`);
-}
-
-function extractSimulatorUDID() {
-  console.log('Retrieving device UDID');
-  const command = `xcrun simctl list devices booted -j | jq -r '[.devices[]] | add | first | .udid'`;
-  const udid = String(childProcess.execSync(command)).trim();
-  console.log(`UDID is ${udid}`);
-  return udid;
-}
-
-function bringSimulatorInForeground() {
-  console.log('Bringing simulator in foreground');
-  childProcess.execSync('open -a simulator');
-}
-
-function sleep(ms) {
-  return new Promise(resolve => {
-    setTimeout(resolve, ms);
-  });
-}
-
-async function launchAppOnSimulator(appId, udid, isDebug) {
-  console.log('Launch the app');
-  childProcess.execSync(`xcrun simctl launch "${udid}" "${appId}"`);
-
-  if (isDebug) {
-    console.log('Wait for metro to warm');
-    await sleep(20 * 1000);
-  }
-}
-
-function startVideoRecording(jsengine, currentAttempt) {
-  console.log(
-    `Start video record using pid: video_record_${currentAttempt}.pid`,
-  );
-
-  const recordingArgs =
-    `simctl io booted recordVideo video_record_${currentAttempt}.mov`.split(
-      ' ',
-    );
-  const recordingProcess = childProcess.spawn('xcrun', recordingArgs, {
-    detached: true,
-    stdio: 'ignore',
-  });
-
-  return recordingProcess;
-}
-
-function stopVideoRecording(recordingProcess) {
-  if (!recordingProcess) {
-    console.log("Passed a null recording process. Can't kill it");
-    return;
-  }
-
-  console.log(`Stop video record using pid: ${recordingProcess.pid}`);
-
-  recordingProcess.kill('SIGINT');
-}
-
-function executeTestsWithRetries(
-  appId,
-  udid,
-  maestroFlow,
-  jsengine,
-  currentAttempt,
-) {
-  const recProcess = startVideoRecording(jsengine, currentAttempt);
-  try {
-    const timeout = 1000 * 60 * 10; // 10 minutes
-    const command = `$HOME/.maestro/bin/maestro --udid="${udid}" test "${maestroFlow}" --format junit -e APP_ID="${appId}"`;
-    console.log(command);
-    childProcess.execSync(`MAESTRO_DRIVER_STARTUP_TIMEOUT=1500000 ${command}`, {
-      stdio: 'inherit',
-      timeout,
-    });
-
-    stopVideoRecording(recProcess);
-  } catch (error) {
-    // Can't put this in the finally block because it will be executed after the
-    // recursive call of executeTestsWithRetries
-    stopVideoRecording(recProcess);
-
-    if (currentAttempt < MAX_ATTEMPTS) {
-      executeTestsWithRetries(
-        appId,
-        udid,
-        maestroFlow,
-        jsengine,
-        currentAttempt + 1,
-      );
-    } else {
-      console.error(`Failed to execute flow after ${MAX_ATTEMPTS} attempts.`);
-      throw error;
-    }
-  }
-}
-
-async function main() {
-  console.info('\n==============================');
-  console.info('Running tests for iOS with the following parameters:');
-  console.info(`APP_PATH: ${APP_PATH}`);
-  console.info(`APP_ID: ${APP_ID}`);
-  console.info(`MAESTRO_FLOW: ${MAESTRO_FLOW}`);
-  console.info(`JS_ENGINE: ${JS_ENGINE}`);
-  console.info(`IS_DEBUG: ${IS_DEBUG}`);
-  console.info(`WORKING_DIRECTORY: ${WORKING_DIRECTORY}`);
-  console.info('==============================\n');
-
-  const simulatorName = 'iPhone 16 Pro';
-  launchSimulator(simulatorName);
-  installAppOnSimulator(APP_PATH);
-  const udid = extractSimulatorUDID();
-  bringSimulatorInForeground();
-  await launchAppOnSimulator(APP_ID, udid, IS_DEBUG);
-  executeTestsWithRetries(APP_ID, udid, MAESTRO_FLOW, JS_ENGINE, 1);
-  console.log('Test finished');
-  process.exit(0);
-}
-
-main();

.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, getNpmPackageInfo, log} = require('./utils.js');
 
 const TAG_AS_LATEST_REGEX = /#publish-packages-to-npm&latest/;
 
@@ -54,7 +53,8 @@ module.exports.publishTemplate = async (github, version, dryRun = true) => {
   });
 };
 
-const MAX_RETRIES = 3 * 6; // 18 attempts. Waiting between attempt: 10 s. Total time: 3 mins.
+const SLEEP_S = 10;
+const MAX_RETRIES = 3 * 6; // 3 minutes
 const TEMPLATE_NPM_PKG = '@react-native-community/template';
 
 /**
@@ -68,18 +68,36 @@ module.exports.verifyPublishedTemplate = async (
   latest = false,
   retries = MAX_RETRIES,
 ) => {
-  try {
-    if (version.startsWith('v')) {
-      version = version.slice(1);
+  log(`🔍 Is ${TEMPLATE_NPM_PKG}@${version} on npm?`);
+
+  let count = retries;
+  while (count-- > 0) {
+    try {
+      const json = await getNpmPackageInfo(
+        TEMPLATE_NPM_PKG,
+        latest ? 'latest' : version,
+      );
+      log(`🎉 Found ${TEMPLATE_NPM_PKG}@${version} on npm`);
+      if (!latest) {
+        return;
+      }
+      if (json.version === version) {
+        log(`🎉 ${TEMPLATE_NPM_PKG}@latest → ${version} on npm`);
+        return;
+      }
+      log(
+        `🐌 ${TEMPLATE_NPM_PKG}@latest → ${pkg.version} on npm and not ${version} as expected, retrying...`,
+      );
+    } catch (e) {
+      log(`Nope, fetch failed: ${e.message}`);
     }
-    await verifyPublishedPackage(
-      TEMPLATE_NPM_PKG,
-      version,
-      latest ? 'latest' : null,
-      retries,
-    );
-  } catch (e) {
-    console.error(e.message);
-    process.exit(1);
+    await sleep(SLEEP_S);
   }
+
+  let msg = `🚨 Timed out when trying to verify ${TEMPLATE_NPM_PKG}@${version} on npm`;
+  if (latest) {
+    msg += ' and latest tag points to this version.';
+  }
+  log(msg);
+  process.exit(1);
 };

.github/workflow-scripts/utils.js

@@ -9,25 +9,21 @@
 
 const {execSync} = require('child_process');
 
-const log = (...args) => console.log(...args);
+function run(cmd) {
+  return execSync(cmd, 'utf8').toString().trim();
+}
+module.exports.run = run;
+
+async function sleep(seconds) {
+  return new Promise(resolve => setTimeout(resolve, seconds * 1000));
+}
+module.exports.sleep = sleep;
 
 async function getNpmPackageInfo(pkg, versionOrTag) {
   return fetch(`https://registry.npmjs.org/${pkg}/${versionOrTag}`).then(resp =>
     resp.json(),
   );
 }
+module.exports.getNpmPackageInfo = getNpmPackageInfo;
 
-async function sleep(seconds) {
-  return new Promise(resolve => setTimeout(resolve, seconds * 1000));
-}
-
-function run(cmd) {
-  return execSync(cmd, 'utf8').toString().trim();
-}
-
-module.exports = {
-  log,
-  getNpmPackageInfo,
-  sleep,
-  run,
-};
+module.exports.log = (...args) => console.log(...args);

.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

@@ -1,63 +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, sleep} = require('./utils');
-
-const SLEEP_S = 10;
-const MAX_RETRIES = 3 * 6; // 18 attempts. Waiting between attempt: 10 s. Total time: 3 mins.
-
-async function verifyPublishedPackage(
-  packageName,
-  version,
-  tag = null,
-  retries = MAX_RETRIES,
-) {
-  log(`🔍 Is ${packageName}@${version} on npm?`);
-
-  let count = retries;
-  while (count-- > 0) {
-    try {
-      const json = await getNpmPackageInfo(packageName, tag ? tag : version);
-      log(`🎉 Found ${packageName}@${version} on npm`);
-      if (!tag) {
-        return;
-      }
-
-      // check for next tag
-      if (tag === 'next' && json.version === version) {
-        log(`🎉 ${packageName}@next → ${version} on npm`);
-        return;
-      }
-
-      // Check for latest tag
-      if (tag === 'latest' && json.version === version) {
-        log(`🎉 ${packageName}@latest → ${version} on npm`);
-        return;
-      }
-
-      log(
-        `🐌 ${packageName}@${tag} → ${json.version} on npm and not ${version} as expected, retrying...`,
-      );
-    } catch (e) {
-      log(`Nope, fetch failed: ${e.message}`);
-    }
-    await sleep(SLEEP_S);
-  }
-
-  let msg = `🚨 Timed out when trying to verify ${packageName}@${version} on npm`;
-  if (tag) {
-    msg += ` and ${tag} tag points to this version.`;
-  }
-  log(msg);
-  process.exit(1);
-}
-
-module.exports = {
-  verifyPublishedPackage,
-};

.github/workflow-scripts/verifyReleaseOnNpm.js

@@ -1,30 +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 {run, sleep, log} = require('./utils.js');
-const {verifyPublishedPackage} = require('./verifyPublishedPackage.js');
-const REACT_NATIVE_NPM_PKG = 'react-native';
-const MAX_RETRIES = 3 * 6; // 18 attempts. Waiting between attempt: 10 s. Total time: 3 mins.
-/**
- * Will verify that @latest, @next and the @<version> have been published.
- *
- * NOTE: This will infinitely query each step until successful, make sure the
- *       calling job has a timeout.
- */
-module.exports.verifyReleaseOnNpm = async (
-  version,
-  latest = false,
-  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

@@ -1,44 +0,0 @@
-name: Create Draft Release
-
-on:
-  workflow_call:
-
-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}}')).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 +18,11 @@ 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: Run Yarn Install on Root
+        run: yarn install
+        working-directory: .
       - 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

@@ -1,41 +0,0 @@
-name: Monitor React Native New Issues
-
-on:
-  schedule:
-    - 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
-      - name: Monitor New Issues
-        uses: react-native-community/repo-monitor@v1.0.1
-        with:
-          task: "monitor-issues"
-          git_secret: ${{ secrets.GITHUB_TOKEN }}
-          notifier: "discord"
-          fetch_data_interval: 6
-          repo_owner: "facebook"
-          repo_name: "react-native"
-          discord_webhook_url: "${{ secrets.DISCORD_WEBHOOK_URL }}"
-          discord_id_type: "user"
-          discord_ids: "${{ env.oncall1 }},${{ env.oncall2 }}"

.github/workflows/nightly.yml

@@ -21,21 +21,121 @@ 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 }}
+
+  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
@@ -53,25 +153,27 @@ jobs:
         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
       env:
         TERM: "dumb"
         GRADLE_OPTS: "-Dorg.gradle.daemon=false"
-        # By default we only build ARM64 to save time/resources. For release/nightlies, we override this value to build all archs.
+        # By default we only build ARM64 to save time/resources. For release/nightlies/prealpha, 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 }}
@@ -80,9 +182,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Build and Publish NPM Package
+      - 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-dependencies.yml

@@ -1,197 +0,0 @@
-name: Prebuild iOS Dependencies
-
-on:
-  workflow_call: # this directive allow us to call this workflow from other workflows
-
-
-jobs:
-  prepare_workspace:
-    name: Prepare workspace
-    runs-on: macos-15
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Setup node.js
-        uses: ./.github/actions/setup-node
-      - name: Restore cache if present
-        id: restore-ios-prebuilds
-        uses: actions/cache/restore@v4
-        with:
-          path: packages/react-native/third-party/
-          key: v3-ios-dependencies-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
-          enableCrossOsArchive: true
-      - name: Yarn Install
-        if: steps.restore-ios-prebuilds.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Prepare Dependencies
-        if: steps.restore-ios-prebuilds.outputs.cache-hit != 'true'
-        run: |
-          node scripts/releases/prepare-ios-prebuilds.js -s
-      - name: Generate Package.swift
-        if: steps.restore-ios-prebuilds.outputs.cache-hit != 'true'
-        run: |
-          node scripts/releases/prepare-ios-prebuilds.js -w
-      - name: Upload Artifacts
-        uses: actions/upload-artifact@v4.3.4
-        with:
-          name: ios-prebuilds-workspace
-          path: packages/react-native/third-party/
-      - name: Save Cache
-        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') }}
-          enableCrossOsArchive: true
-          path: packages/react-native/third-party/
-
-  build-apple-slices:
-    name: Build Apple Slice
-    runs-on: macos-15
-    needs: [prepare_workspace]
-    strategy:
-      fail-fast: false
-      matrix:
-        flavor: ['Debug', 'Release']
-        slice: ['ios',
-                'ios-simulator',
-                'macos',
-                'mac-catalyst',
-                'tvos',
-                'tvos-simulator',
-                'xros',
-                'xros-simulator']
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Setup node.js
-        uses: ./.github/actions/setup-node
-      - 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 }}
-      - name: Yarn Install
-        if: steps.restore-slice-folder.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Restore workspace
-        if: steps.restore-slice-folder.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          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: 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 ${{ matrix.flavor }}
-      - name: Upload Artifacts
-        uses: actions/upload-artifact@v4.3.4
-        with:
-          name: prebuild-slice-${{ matrix.flavor }}-${{ matrix.slice }}
-          path: |
-            packages/react-native/third-party/.build/Build/Products
-      - name: Save Cache
-        uses: actions/cache/save@v4
-        if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
-        with:
-          key: v3-ios-dependencies-slice-folder-${{ 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
-    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: ${{ secrets.REACT_ORG_CODE_SIGNING_P12_CERT_PWD }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Setup node.js
-        uses: ./.github/actions/setup-node
-      - name: Setup xcode
-        uses: ./.github/actions/setup-xcode
-        with:
-          xcode-version: '16.1'
-      - name: Restore XCFramework
-        id: restore-xcframework
-        uses: actions/cache/restore@v4
-        with:
-          path: |
-            packages/react-native/third-party/
-          key: v3-ios-dependencies-xcframework-${{ matrix.flavor }}-${{ hashfiles('scripts/releases/ios-prebuild/configuration.js') }}
-      # If cache hit, we already have our binary. We don't need to do anything.
-      - name: Yarn Install
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        uses: ./.github/actions/yarn-install
-      - name: Restore workspace
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          name: ios-prebuilds-workspace
-          path: packages/react-native/third-party/
-      - name: Download slices
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          pattern: prebuild-slice-${{ 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 == '' }}
-        run: node scripts/releases/prepare-ios-prebuilds.js -c
-      - name: Create and Sign XCFramework
-        if: ${{ steps.restore-xcframework.outputs.cache-hit != 'true' && env.REACT_ORG_CODE_SIGNING_P12_CERT != '' }}
-        run: node scripts/releases/prepare-ios-prebuilds.js -c -i "React Org"
-      - name: Compress and Rename XCFramework
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        run: |
-          tar -cz -f packages/react-native/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz \
-            packages/react-native/third-party/ReactNativeDependencies.xcframework
-      - name: Show Symbol folder content
-        if: steps.restore-xcframework.outputs.cache-hit != 'true'
-        run: ls -lR packages/react-native/third-party/Symbols
-      - 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${{ matrix.flavor }}.framework.dSYM.tar.gz
-      - name: Upload XCFramework Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-          path: packages/react-native/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
-      - name: Upload dSYM Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz
-          path: |
-            packages/react-native/third-party/Symbols/ReactNativeDependencies${{ matrix.flavor }}.framework.dSYM.tar.gz
-      - name: Save XCFramework in Cache
-        if: ${{ github.ref == 'refs/heads/main' }} # To avoid that the cache explode
-        uses: actions/cache/save@v4
-        with:
-          path: |
-            packages/react-native/third-party/ReactNativeDependencies${{ 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') }}

.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: ${{ secrets.GHA_NPM_TOKEN }}
     steps:
@@ -18,11 +17,9 @@ jobs:
       - name: Setup node.js
         uses: ./.github/actions/setup-node
       - name: Run Yarn Install
-        uses: ./.github/actions/yarn-install
+        uses: ./.github/actions/yarn-install-with-cache
       - name: Build packages
         run: yarn build
-      - name: Build types
-        run: yarn build-types --skip-snapshot
       - name: Set NPM auth token
         run: echo "//registry.npmjs.org/:_authToken=$GHA_NPM_TOKEN" > ~/.npmrc
       - name: Find and publish all bumped packages

.github/workflows/publish-release.yml

@@ -19,32 +19,158 @@ jobs:
           echo "Setting release type to release"
           echo "RELEASE_TYPE=release" >> $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
-    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 }}
+
+  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 }}
 
   build_npm_package:
     runs-on: 8-core-ubuntu
     needs:
       [
         set_release_type,
-        prebuild_apple_dependencies,
-        prebuild_react_native_core,
+        prepare_hermes_workspace,
+        build_hermes_macos,
+        build_hermesc_linux,
+        build_hermesc_windows,
+        build_android,
       ]
     container:
       image: reactnativecommunity/react-native-android:latest
       env:
         TERM: "dumb"
         GRADLE_OPTS: "-Dorg.gradle.daemon=false"
-        # By default we only build ARM64 to save time/resources. For release/nightlies, we override this value to build all archs.
+        # By default we only build ARM64 to save time/resources. For release/nightlies/prealpha, 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 }}
@@ -57,12 +183,12 @@ jobs:
         with:
           fetch-depth: 0
           fetch-tags: true
-      - name: Build and Publish NPM Package
+      - 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 }}
       - name: Publish @react-native-community/template
         id: publish-template-to-npm
         uses: actions/github-script@v6
@@ -88,35 +214,3 @@ jobs:
             -H "Accept: application/vnd.github.v3+json" \
             -H "Authorization: Bearer $REACT_NATIVE_BOT_GITHUB_TOKEN" \
             -d "{\"event_type\": \"publish\", \"client_payload\": { \"version\": \"${{ github.ref_name }}\" }}"
-      - name: Verify Release is on NPM
-        timeout-minutes: 3
-        uses: actions/github-script@v6
-        with:
-          github-token: ${{ secrets.REACT_NATIVE_BOT_GITHUB_TOKEN }}
-          script: |
-            const {verifyReleaseOnNpm} = require('./.github/workflow-scripts/verifyReleaseOnNpm.js');
-            const {isLatest} = require('./.github/workflow-scripts/publishTemplate.js');
-            const version = "${{ 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
-    uses: ./.github/workflows/create-draft-release.yml
-    secrets: inherit

.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 +37,92 @@ 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 }}
 
   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 +130,127 @@ 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
     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]
+    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 }}
+
+  test_e2e_ios_rntester:
+    if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    runs-on: macos-13-large
+    needs:
+      [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos]
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
+    strategy:
+      fail-fast: false
+      matrix:
+        jsengine: [Hermes, JSC]
+        architecture: [NewArch]
         flavor: [Debug, Release]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: ./.github/actions/setup-node
-      - name: Download App
-        uses: actions/download-artifact@v4
+      - name: Run it
+        uses: ./.github/actions/test-ios-rntester
         with:
-          name: RNTesterApp-NewArch-${{ 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
+          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 }}
+          run-e2e-tests: "true"
+          flavor: ${{ matrix.flavor }}
       - name: Run E2E Tests
         uses: ./.github/actions/maestro-ios
         with:
-          app-path: "/tmp/RNTesterBuild/RNTester.app"
+          app-path: "/tmp/RNTesterBuild/Build/Products/${{ matrix.flavor }}-iphonesimulator/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: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    runs-on: macos-13-large
+    needs: build_npm_package
+    env:
+      HERMES_WS_DIR: /tmp/hermes
+      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
+    continue-on-error: true
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [Hermes, JSC]
         flavor: [Debug, Release]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup xcode
         uses: ./.github/actions/setup-xcode
-        with:
-          platform: ios
       - name: Setup node.js
         uses: ./.github/actions/setup-node
       - name: Run yarn
-        uses: ./.github/actions/yarn-install
+        uses: ./.github/actions/yarn-install-with-cache
       - name: Setup ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@v1.170.0
         with:
           ruby-version: 2.6.10
+      - name: Download Hermes
+        uses: actions/download-artifact@v4
+        with:
+          name: hermes-darwin-bin-${{matrix.flavor}}
+          path: /tmp/react-native-tmp
       - name: Download React Native Package
         uses: actions/download-artifact@v4
         with:
@@ -138,32 +258,14 @@ 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 }}
@@ -175,12 +277,7 @@ 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=$NEW_ARCH_ENABLED bundle exec pod install
+          HERMES_ENGINE_TARBALL_PATH=$HERMES_PATH bundle exec pod install
 
           xcodebuild \
             -scheme "RNTestProject" \
@@ -194,16 +291,20 @@ 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
 
   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]
     steps:
       - name: Checkout
@@ -211,7 +312,7 @@ jobs:
       - name: Setup node.js
         uses: ./.github/actions/setup-node
       - name: Run yarn
-        uses: ./.github/actions/yarn-install
+        uses: ./.github/actions/yarn-install-with-cache
       - name: Set up JDK 17
         uses: actions/setup-java@v2
         with:
@@ -257,33 +358,48 @@ jobs:
 
       - name: Run E2E Tests
         uses: ./.github/actions/maestro-android
-        timeout-minutes: 60
         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
 
-  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 +418,18 @@ jobs:
         uses: ./.github/actions/build-android
         with:
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
-          gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
+          run-e2e-tests: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
 
   test_e2e_android_rntester:
-    runs-on: 4-core-ubuntu
+    # Temporarily disable RNTester tests on Android as they are quite flaky and they make CI always red
+    # if: ${{ github.ref == 'refs/heads/main' || contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    if: ${{ contains(github.ref,  'stable') || inputs.run-e2e-tests }}
+    runs-on: ubuntu-latest
     needs: [build_android]
     strategy:
       fail-fast: false
       matrix:
+        jsengine: [hermes, jsc]
         flavor: [debug, release]
     steps:
       - name: Checkout
@@ -317,20 +437,20 @@ jobs:
       - name: Setup node.js
         uses: ./.github/actions/setup-node
       - name: Install node dependencies
-        uses: ./.github/actions/yarn-install
+        uses: ./.github/actions/yarn-install-with-cache
       - name: Download APK
         uses: actions/download-artifact@v4
         with:
-          name: rntester-${{ 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 }}
 
@@ -339,23 +459,27 @@ 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 }}
 
   test_android_helloworld:
     runs-on: 4-core-ubuntu
@@ -375,6 +499,8 @@ jobs:
       fail-fast: false
       matrix:
         flavor: [Debug, Release]
+        architecture: [NewArch, OldArch]
+        jsengine: [Hermes, JSC]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -392,24 +518,22 @@ jobs:
           path: /tmp/maven-local
       - name: Setup gradle
         uses: ./.github/actions/setup-gradle
-        with:
-          cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
       - name: Run yarn install
-        uses: ./.github/actions/yarn-install
-      - name: Set nightly Hermes versions
-        shell: bash
-        run: |
-          node ./scripts/releases/use-hermes-nightly.js
-      - name: Run yarn install again, with the correct hermes version
-        uses: ./.github/actions/yarn-install
+        uses: ./.github/actions/yarn-install-with-cache
       - name: Prepare the Helloworld application
         shell: bash
         run: node ./scripts/e2e/init-project-e2e.js --useHelloWorld --pathToLocalReactNative "$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 [[ ${{ matrix.flavor }} == "Release" ]]; then
             args+=(--prod)
           fi
@@ -417,15 +541,16 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4.3.4
         with:
-          name: helloworld-apk-${{ 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 +558,27 @@ 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 +586,17 @@ 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: ["20", "18"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -474,53 +607,12 @@ 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/trigger-e2e-on-comment.yml

@@ -0,0 +1,45 @@
+name: Trigger E2E Tests on Comment
+# This workflow is used to automatically trigger E2E tests when a comment is made
+# containing the text "/run-e2e-tests".
+
+on:
+  issue_comment:
+    types: [created]
+permissions:
+  contents: read
+jobs:
+  trigger-e2e-tests:
+    name: Trigger E2E Tests
+    runs-on: ubuntu-latest
+    if: github.event.issue.pull_request != '' && contains(github.event.comment.body, '/test-e2e')
+    steps:
+      # This is needed because of https://github.com/actions/runner-images/issues/6283
+      # TL;DR: brew is not in the PATH anymore.
+      - name: Setup Homebrew
+        uses: Homebrew/actions/setup-homebrew@master
+      - name: Install jq
+        run: brew install jq
+      - name: Run E2E Tests
+        run: |
+          # Github does not provide the branch of a PR when a comment on a PR is made
+          # So, given the issue number, which is the PR number, we can retrieve the branch with
+          # a quick API call
+          echo "Retrieving branch"
+          BRANCH=$(curl -L \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer $GITHUB_TOKEN" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/facebook/react-native/pulls/$PR_NUMBER | jq -r '.head.ref')
+
+          echo "Trigger Test All workflow for branch $BRANCH"
+          curl -L \
+            -X POST \
+            -H "Accept: application/vnd.github+json" \
+            -H "Authorization: Bearer $GITHUB_TOKEN" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/facebook/react-native/actions/workflows/test-all.yml/dispatches \
+            -d "{\"ref\": \"$BRANCH\", \"inputs\": {\"run-e2e-tests\": \"true\"}}"
+
+        env:
+          GITHUB_TOKEN: ${{ secrets.REACT_NATIVE_BOT_GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.issue.number }}

.github/workflows/update-node-modules-cache.yml

@@ -0,0 +1,18 @@
+name: Update node modules cache
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+jobs:
+  update_node_modules_cache:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install yarn dependencies and update cache
+        uses: ./.github/actions/yarn-install-with-cache
+        with:
+          update-cache: "true"

.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
@@ -68,7 +68,6 @@ local.properties
 *.iml
 /packages/react-native/android/*
 !/packages/react-native/android/README.md
-.kotlin/
 
 # Node
 node_modules
@@ -107,43 +106,33 @@ 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
@@ -151,11 +140,6 @@ vendor/
 /packages/react-native/sdks/hermesc
 /packages/react-native/sdks/hermes-engine/hermes-engine-from-local-source-dir.tar.gz
 
-# iOS prebuilds
-/packages/react-native/third-party/
-fix_*.patch
-*.xcframework
-
 # Visual Studio Code (config dir - if present, this merges user defined
 # workspace settings on top of react-native.code-workspace)
 /.vscode
@@ -169,13 +153,8 @@ fix_*.patch
 # Temporary files created by Metro to check the health of the file watcher
 .metro-health-check*
 
+# CircleCI
+.circleci/generated_config.yml
+
 # Jest Integration
-/private/react-native-fantom/build/
-/private/react-native-fantom/.out/
-/private/react-native-fantom/tester/build/
-
-# [Experimental] Generated TS type definitions
-/packages/**/types_generated/
-
-/packages/debugger-shell/build/
-/packages/*/dist/
+/jest/integration/build/

.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;

.prettierignore

@@ -7,6 +7,5 @@
 
 packages/*/dist
 vendor
-packages/**/types_generated/
 
 packages/react-native-codegen/e2e/__test_fixtures__/modules/NativeEnumTurboModule.js

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

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/) 

Gemfile

@@ -6,10 +6,3 @@ ruby ">= 2.6.10"
 gem 'cocoapods', '~> 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'activesupport', '>= 6.1.7.5', '< 7.1.0'
 gem 'xcodeproj', '< 1.26.0'
-gem 'concurrent-ruby', '<= 1.3.4'
-
-# Ruby 3.4.0 has removed some libraries from the standard library.
-gem 'bigdecimal'
-gem 'logger'
-gem 'benchmark'
-gem 'mutex_m'

Gemfile.lock

@@ -14,8 +14,6 @@ GEM
       httpclient (~> 2.8, >= 2.8.3)
       json (>= 1.5.1)
     atomos (0.1.3)
-    benchmark (0.4.0)
-    bigdecimal (3.1.9)
     claide (1.1.0)
     cocoapods (1.14.2)
       addressable (~> 2.8)
@@ -67,10 +65,8 @@ GEM
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
     json (2.6.3)
-    logger (1.6.5)
     minitest (5.20.0)
     molinillo (0.8.0)
-    mutex_m (0.3.0)
     nanaimo (0.3.0)
     nap (1.1.0)
     netrc (0.11.0)
@@ -94,13 +90,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (>= 6.1.7.5, < 7.1.0)
-  benchmark
-  bigdecimal
   cocoapods (~> 1.13, != 1.15.1, != 1.15.0)
-  concurrent-ruby (<= 1.3.4)
-  logger
-  mutex_m
-  xcodeproj (< 1.26.0)
 
 RUBY VERSION
    ruby 3.2.0p0

LICENSE-docs

@@ -0,0 +1,393 @@
+Attribution 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
+and certain other rights specified in the public license below. The
+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+     Considerations for licensors: Our public licenses are
+     intended for use by those authorized to give the public
+     permission to use material in ways otherwise restricted by
+     copyright and certain other rights. Our licenses are
+     irrevocable. Licensors should read and understand the terms
+     and conditions of the license they choose before applying it.
+     Licensors should also secure all rights necessary before
+     applying our licenses so that the public can reuse the
+     material as expected. Licensors should clearly mark any
+     material not subject to the license. This includes other CC-
+     licensed material, or material used under an exception or
+     limitation to copyright. More considerations for licensors:
+  wiki.creativecommons.org/Considerations_for_licensors
+
+     Considerations for the public: By using one of our public
+     licenses, a licensor grants the public permission to use the
+     licensed material under specified terms and conditions. If
+     the licensor's permission is not necessary for any reason--for
+     example, because of any applicable exception or limitation to
+     copyright--then that use is not regulated by the license. Our
+     licenses grant only permissions under copyright and certain
+     other rights that a licensor has authority to grant. Use of
+     the licensed material may still be restricted for other
+     reasons, including because others have copyright or other
+     rights in the material. A licensor may make special requests,
+     such as asking that all changes be marked or described.
+     Although not required by our licenses, you are encouraged to
+     respect those requests where reasonable. More_considerations
+     for the public:
+  wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree
+to be bound by the terms and conditions of this Creative Commons
+Attribution 4.0 International Public License ("Public License"). To the
+extent this Public License may be interpreted as a contract, You are
+granted the Licensed Rights in consideration of Your acceptance of
+these terms and conditions, and the Licensor grants You such rights in
+consideration of benefits the Licensor receives from making the
+Licensed Material available under these terms and conditions.
+
+
+Section 1 -- Definitions.
+
+  a. Adapted Material means material subject to Copyright and Similar
+     Rights that is derived from or based upon the Licensed Material
+     and in which the Licensed Material is translated, altered,
+     arranged, transformed, or otherwise modified in a manner requiring
+     permission under the Copyright and Similar Rights held by the
+     Licensor. For purposes of this Public License, where the Licensed
+     Material is a musical work, performance, or sound recording,
+     Adapted Material is always produced where the Licensed Material is
+     synched in timed relation with a moving image.
+
+  b. Adapter's License means the license You apply to Your Copyright
+     and Similar Rights in Your contributions to Adapted Material in
+     accordance with the terms and conditions of this Public License.
+
+  c. Copyright and Similar Rights means copyright and/or similar rights
+     closely related to copyright including, without limitation,
+     performance, broadcast, sound recording, and Sui Generis Database
+     Rights, without regard to how the rights are labeled or
+     categorized. For purposes of this Public License, the rights
+     specified in Section 2(b)(1)-(2) are not Copyright and Similar
+     Rights.
+
+  d. Effective Technological Measures means those measures that, in the
+     absence of proper authority, may not be circumvented under laws
+     fulfilling obligations under Article 11 of the WIPO Copyright
+     Treaty adopted on December 20, 1996, and/or similar international
+     agreements.
+
+  e. Exceptions and Limitations means fair use, fair dealing, and/or
+     any other exception or limitation to Copyright and Similar Rights
+     that applies to Your use of the Licensed Material.
+
+  f. Licensed Material means the artistic or literary work, database,
+     or other material to which the Licensor applied this Public
+     License.
+
+  g. Licensed Rights means the rights granted to You subject to the
+     terms and conditions of this Public License, which are limited to
+     all Copyright and Similar Rights that apply to Your use of the
+     Licensed Material and that the Licensor has authority to license.
+
+  h. Licensor means the individual(s) or entity(ies) granting rights
+     under this Public License.
+
+  i. Share means to provide material to the public by any means or
+     process that requires permission under the Licensed Rights, such
+     as reproduction, public display, public performance, distribution,
+     dissemination, communication, or importation, and to make material
+     available to the public including in ways that members of the
+     public may access the material from a place and at a time
+     individually chosen by them.
+
+  j. Sui Generis Database Rights means rights other than copyright
+     resulting from Directive 96/9/EC of the European Parliament and of
+     the Council of 11 March 1996 on the legal protection of databases,
+     as amended and/or succeeded, as well as other essentially
+     equivalent rights anywhere in the world.
+
+  k. You means the individual or entity exercising the Licensed Rights
+     under this Public License. Your has a corresponding meaning.
+
+
+Section 2 -- Scope.
+
+  a. License grant.
+
+       1. Subject to the terms and conditions of this Public License,
+          the Licensor hereby grants You a worldwide, royalty-free,
+          non-sublicensable, non-exclusive, irrevocable license to
+          exercise the Licensed Rights in the Licensed Material to:
+
+            a. reproduce and Share the Licensed Material, in whole or
+               in part; and
+
+            b. produce, reproduce, and Share Adapted Material.
+
+       2. Exceptions and Limitations. For the avoidance of doubt, where
+          Exceptions and Limitations apply to Your use, this Public
+          License does not apply, and You do not need to comply with
+          its terms and conditions.
+
+       3. Term. The term of this Public License is specified in Section
+          6(a).
+
+       4. Media and formats; technical modifications allowed. The
+          Licensor authorizes You to exercise the Licensed Rights in
+          all media and formats whether now known or hereafter created,
+          and to make technical modifications necessary to do so. The
+          Licensor waives and/or agrees not to assert any right or
+          authority to forbid You from making technical modifications
+          necessary to exercise the Licensed Rights, including
+          technical modifications necessary to circumvent Effective
+          Technological Measures. For purposes of this Public License,
+          simply making modifications authorized by this Section 2(a)
+          (4) never produces Adapted Material.
+
+       5. Downstream recipients.
+
+            a. Offer from the Licensor -- Licensed Material. Every
+               recipient of the Licensed Material automatically
+               receives an offer from the Licensor to exercise the
+               Licensed Rights under the terms and conditions of this
+               Public License.
+
+            b. No downstream restrictions. You may not offer or impose
+               any additional or different terms or conditions on, or
+               apply any Effective Technological Measures to, the
+               Licensed Material if doing so restricts exercise of the
+               Licensed Rights by any recipient of the Licensed
+               Material.
+
+       6. No endorsement. Nothing in this Public License constitutes or
+          may be construed as permission to assert or imply that You
+          are, or that Your use of the Licensed Material is, connected
+          with, or sponsored, endorsed, or granted official status by,
+          the Licensor or others designated to receive attribution as
+          provided in Section 3(a)(1)(A)(i).
+
+  b. Other rights.
+
+       1. Moral rights, such as the right of integrity, are not
+          licensed under this Public License, nor are publicity,
+          privacy, and/or other similar personality rights; however, to
+          the extent possible, the Licensor waives and/or agrees not to
+          assert any such rights held by the Licensor to the limited
+          extent necessary to allow You to exercise the Licensed
+          Rights, but not otherwise.
+
+       2. Patent and trademark rights are not licensed under this
+          Public License.
+
+       3. To the extent possible, the Licensor waives any right to
+          collect royalties from You for the exercise of the Licensed
+          Rights, whether directly or through a collecting society
+          under any voluntary or waivable statutory or compulsory
+          licensing scheme. In all other cases the Licensor expressly
+          reserves any right to collect such royalties.
+
+
+Section 3 -- License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
+  a. Attribution.
+
+       1. If You Share the Licensed Material (including in modified
+          form), You must:
+
+            a. retain the following if it is supplied by the Licensor
+               with the Licensed Material:
+
+                 i. identification of the creator(s) of the Licensed
+                    Material and any others designated to receive
+                    attribution, in any reasonable manner requested by
+                    the Licensor (including by pseudonym if
+                    designated);
+
+                ii. a copyright notice;
+
+               iii. a notice that refers to this Public License;
+
+                iv. a notice that refers to the disclaimer of
+                    warranties;
+
+                 v. a URI or hyperlink to the Licensed Material to the
+                    extent reasonably practicable;
+
+            b. indicate if You modified the Licensed Material and
+               retain an indication of any previous modifications; and
+
+            c. indicate the Licensed Material is licensed under this
+               Public License, and include the text of, or the URI or
+               hyperlink to, this Public License.
+
+       2. You may satisfy the conditions in Section 3(a)(1) in any
+          reasonable manner based on the medium, means, and context in
+          which You Share the Licensed Material. For example, it may be
+          reasonable to satisfy the conditions by providing a URI or
+          hyperlink to a resource that includes the required
+          information.
+
+       3. If requested by the Licensor, You must remove any of the
+          information required by Section 3(a)(1)(A) to the extent
+          reasonably practicable.
+
+       4. If You Share Adapted Material You produce, the Adapter's
+          License You apply must not prevent recipients of the Adapted
+          Material from complying with this Public License.
+
+
+Section 4 -- Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that
+apply to Your use of the Licensed Material:
+
+  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
+     to extract, reuse, reproduce, and Share all or a substantial
+     portion of the contents of the database;
+
+  b. if You include all or a substantial portion of the database
+     contents in a database in which You have Sui Generis Database
+     Rights, then the database in which You have Sui Generis Database
+     Rights (but not its individual contents) is Adapted Material; and
+
+  c. You must comply with the conditions in Section 3(a) if You Share
+     all or a substantial portion of the contents of the database.
+
+For the avoidance of doubt, this Section 4 supplements and does not
+replace Your obligations under this Public License where the Licensed
+Rights include other Copyright and Similar Rights.
+
+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
+  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
+     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
+     AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
+     ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
+     IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
+     WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
+     PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
+     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
+     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
+     ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
+
+  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
+     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
+     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
+     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
+     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
+     USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
+     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
+     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
+     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
+
+  c. The disclaimer of warranties and limitation of liability provided
+     above shall be interpreted in a manner that, to the extent
+     possible, most closely approximates an absolute disclaimer and
+     waiver of all liability.
+
+
+Section 6 -- Term and Termination.
+
+  a. This Public License applies for the term of the Copyright and
+     Similar Rights licensed here. However, if You fail to comply with
+     this Public License, then Your rights under this Public License
+     terminate automatically.
+
+  b. Where Your right to use the Licensed Material has terminated under
+     Section 6(a), it reinstates:
+
+       1. automatically as of the date the violation is cured, provided
+          it is cured within 30 days of Your discovery of the
+          violation; or
+
+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
+     of this Public License.
+
+  c. For the avoidance of doubt, the Licensor may also offer the
+     Licensed Material under separate terms or conditions or stop
+     distributing the Licensed Material at any time; however, doing so
+     will not terminate this Public License.
+
+  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+     License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+  a. The Licensor shall not be bound by any additional or different
+     terms or conditions communicated by You unless expressly agreed.
+
+  b. Any arrangements, understandings, or agreements regarding the
+     Licensed Material not stated herein are separate from and
+     independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+  a. For the avoidance of doubt, this Public License does not, and
+     shall not be interpreted to, reduce, limit, restrict, or impose
+     conditions on any use of the Licensed Material that could lawfully
+     be made without permission under this Public License.
+
+  b. To the extent possible, if any provision of this Public License is
+     deemed unenforceable, it shall be automatically reformed to the
+     minimum extent necessary to make it enforceable. If the provision
+     cannot be reformed, it shall be severed from this Public License
+     without affecting the enforceability of the remaining terms and
+     conditions.
+
+  c. No term or condition of this Public License will be waived and no
+     failure to comply consented to unless expressly agreed to by the
+     Licensor.
+
+  d. Nothing in this Public License constitutes or may be interpreted
+     as a limitation upon, or waiver of, any privileges and immunities
+     that apply to the Licensor or You, including from the legal
+     processes of any jurisdiction or authority.
+
+
+=======================================================================
+
+Creative Commons is not a party to its public licenses.
+Notwithstanding, Creative Commons may elect to apply one of its public
+licenses to material it publishes and in those instances will be
+considered the "Licensor." Except for the limited purpose of indicating
+that material is shared under a Creative Commons public license or as
+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the public
+licenses.
+
+Creative Commons may be contacted at creativecommons.org.

README.md

@@ -13,17 +13,17 @@
   <a href="https://github.com/facebook/react-native/blob/HEAD/LICENSE">
     <img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="React Native is released under the MIT license." />
   </a>
+  <a href="https://circleci.com/gh/facebook/react-native">
+    <img src="https://circleci.com/gh/facebook/react-native.svg?style=shield" alt="Current CircleCI build status." />
+  </a>
   <a href="https://www.npmjs.org/package/react-native">
     <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>
 
@@ -67,7 +67,7 @@ React Native is developed and supported by many companies and individual core co
 
 ## 📋 Requirements
 
-React Native apps may target iOS 15.1 and Android 7.0 (API 24) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like [Expo](https://expo.dev) can be used to work around this.
+React Native apps may target iOS 13.4 and Android 6.0 (API 23) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like [Expo](https://expo.dev) can be used to work around this.
 
 ## 🎉 Building your first React Native app
 
@@ -141,4 +141,7 @@ 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 CircleCI 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/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};
-}