release new versions for a few packages

Merge pull request #2356 from actions/dependabot/npm_and_yarn/flatted-3.4.2
chore(deps-dev): bump flatted from 3.3.3 to 3.4.2
2026-04-21 17:15:02 +00:00 · 2026-04-21 12:59:58 -04:00 · 2026-04-21 12:55:26 -04:00 · 2026-04-21 12:54:48 -04:00 · 2026-04-21 12:42:56 -04:00 · 2026-04-21 12:38:52 -04:00
169 changed files with 3839 additions and 2700 deletions
@@ -57,3 +57,8 @@ This will ask you some questions about the new package. Start with `0.0.0` as th
 ```

 3. Start developing 😄.
+
+## Releasing Packages
+
+For information on how packages are published to npm, including workflow inputs, dist-tags, and safety guards, see the [release documentation](../docs/release.md).
+
@@ -71,10 +71,143 @@ jobs:
          } catch (err) {
            console.log('Successfully blocked second artifact upload')
          }
+
+  upload-single-file:
+    name: Upload Single File (no zip)
+
+    strategy:
+      matrix:
+        runs-on: [ubuntu-latest, windows-latest, macos-latest]
+      fail-fast: false
+
+    runs-on: ${{ matrix.runs-on }}
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v5
+
+    - name: Set Node.js 24.x
+      uses: actions/setup-node@v5
+      with:
+        node-version: 24.x
+
+    - name: Install root npm packages
+      run: npm ci
+
+    - name: Compile artifact package
+      run: |
+        npm ci
+        npm run tsc
+      working-directory: packages/artifact
+
+    - name: Create file that will be uploaded
+      run: |
+        echo -n 'hello from single file upload' > single-file-${{ matrix.runs-on }}.txt
+
+    - name: Upload Single File Artifact (skipArchive)
+      uses: actions/github-script@v8
+      with:
+        script: |
+          const {default: artifact} = require('./packages/artifact/lib/artifact')
+
+          const artifactName = 'my-single-file-${{ matrix.runs-on }}'
+          console.log('artifactName: ' + artifactName)
+
+          const uploadResult = await artifact.uploadArtifact(
+            artifactName,
+            ['single-file-${{ matrix.runs-on }}.txt'],
+            './',
+            {skipArchive: true}
+          )
+          console.log(uploadResult)
+
+          const size = uploadResult.size
+          const id = uploadResult.id
+
+          if (!id) {
+            throw new Error('Artifact ID is missing from upload result')
+          }
+
+          console.log(`Successfully uploaded single file artifact ${id}`)
+
+  upload-html-file:
+    name: Upload HTML File (no zip)
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v5
+
+    - name: Set Node.js 24.x
+      uses: actions/setup-node@v5
+      with:
+        node-version: 24.x
+
+    - name: Install root npm packages
+      run: npm ci
+
+    - name: Compile artifact package
+      run: |
+        npm ci
+        npm run tsc
+      working-directory: packages/artifact
+
+    - name: Create HTML file
+      run: |
+        cat > report.html << 'EOF'
+        <!DOCTYPE html>
+        <html lang="en">
+        <head>
+          <meta charset="UTF-8">
+          <meta name="viewport" content="width=device-width, initial-scale=1.0">
+          <title>Artifact Upload Test Report</title>
+          <style>
+            body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif; max-width: 800px; margin: 40px auto; padding: 0 20px; color: #24292f; }
+            h1 { border-bottom: 1px solid #d0d7de; padding-bottom: 8px; }
+            .success { color: #1a7f37; }
+            .info { background: #ddf4ff; border: 1px solid #54aeff; border-radius: 6px; padding: 12px 16px; margin: 16px 0; }
+            table { border-collapse: collapse; width: 100%; margin: 16px 0; }
+            th, td { border: 1px solid #d0d7de; padding: 8px 12px; text-align: left; }
+            th { background: #f6f8fa; }
+          </style>
+        </head>
+        <body>
+          <h1>Artifact Upload Test Report</h1>
+          <div class="info">
+            <strong>This HTML file was uploaded as a single un-zipped artifact.</strong>
+            If you can see this in the browser, the feature is working correctly!
+          </div>
+          <table>
+            <tr><th>Property</th><th>Value</th></tr>
+            <tr><td>Upload method</td><td><code>skipArchive: true</code></td></tr>
+            <tr><td>Content-Type</td><td><code>text/html</code></td></tr>
+            <tr><td>File</td><td><code>report.html</code></td></tr>
+          </table>
+          <p class="success">&#10004; Single file upload is working!</p>
+        </body>
+        </html>
+        EOF
+
+    - name: Upload HTML Artifact (skipArchive)
+      uses: actions/github-script@v8
+      with:
+        script: |
+          const {default: artifact} = require('./packages/artifact/lib/artifact')
+
+          const uploadResult = await artifact.uploadArtifact(
+            'test-report',
+            ['report.html'],
+            './',
+            {skipArchive: true}
+          )
+          console.log(uploadResult)
+          console.log(`Successfully uploaded HTML artifact ${uploadResult.id}`)
+          console.log('This artifact is intentionally kept for manual browser verification')
+
  verify:
    name: Verify and Delete
    runs-on: ubuntu-latest
-    needs: [upload]
+    needs: [upload, upload-single-file, upload-html-file]
    steps:
    - name: Checkout
      uses: actions/checkout@v5
@@ -164,6 +297,71 @@ jobs:
              }
            }
          }
+
+    - name: Download and Verify Single File Artifacts
+      uses: actions/github-script@v8
+      with:
+        script: |
+          const {default: artifactClient} = require('./packages/artifact/lib/artifact')
+
+          const {readFile} = require('fs/promises')
+          const path = require('path')
+
+          const findBy = {
+            repositoryOwner: process.env.GITHUB_REPOSITORY.split('/')[0],
+            repositoryName: process.env.GITHUB_REPOSITORY.split('/')[1],
+            token: '${{ secrets.GITHUB_TOKEN }}',
+            workflowRunId: process.env.GITHUB_RUN_ID
+          }
+
+          const listResult = await artifactClient.listArtifacts({latest: true, findBy})
+          const expectedSingleFiles = [
+            'single-file-ubuntu-latest.txt',
+            'single-file-windows-latest.txt',
+            'single-file-macos-latest.txt'
+          ]
+
+          // Single file artifacts are named after the file basename
+          const singleFileArtifacts = listResult.artifacts.filter(a =>
+            expectedSingleFiles.includes(a.name)
+          )
+
+          console.log('Found single file artifacts:', singleFileArtifacts.length)
+
+          if (singleFileArtifacts.length !== 3) {
+            console.log('Unexpected single file artifacts:', singleFileArtifacts)
+            throw new Error(
+              `Expected 3 single-file artifacts but found ${singleFileArtifacts.length}`
+            )
+          }
+
+          for (const artifact of singleFileArtifacts) {
+            const downloadDir = `single-file-download-${artifact.id}`
+            const {downloadPath} = await artifactClient.downloadArtifact(artifact.id, {
+              path: downloadDir,
+              findBy
+            })
+
+            console.log('Downloaded single file artifact to:', downloadPath)
+
+            const filePath = path.join(
+              process.env.GITHUB_WORKSPACE,
+              downloadPath,
+              artifact.name
+            )
+
+            console.log('Checking file:', filePath)
+
+            const content = await readFile(filePath, 'utf8')
+            if (content.trim() !== 'hello from single file upload') {
+              throw new Error(
+                `Expected single file to contain 'hello from single file upload' but found '${content}'`
+              )
+            }
+
+            console.log(`Successfully verified single file artifact ${artifact.id}`)
+          }
+
    - name: Delete Artifacts
      uses: actions/github-script@v8
      with:
@@ -173,11 +371,19 @@ jobs:
          const artifactsToDelete = [
            'my-artifact-ubuntu-latest',
            'my-artifact-windows-latest',
-            'my-artifact-macos-latest'
+            'my-artifact-macos-latest',
+            'single-file-ubuntu-latest.txt',
+            'single-file-windows-latest.txt',
+            'single-file-macos-latest.txt'
          ]

          for (const artifactName of artifactsToDelete) {
-            const {id} = await artifactClient.deleteArtifact(artifactName)
+            try {
+              const {id} = await artifactClient.deleteArtifact(artifactName)
+              console.log(`Deleted artifact '${artifactName}' (ID: ${id})`)
+            } catch (err) {
+              console.log(`Could not delete artifact '${artifactName}': ${err.message}`)
+            }
          }

          const {artifacts} = await artifactClient.listArtifacts({latest: true})
@@ -55,10 +55,8 @@ jobs:
      shell: bash
      run: packages/cache/__tests__/create-cache-files.sh ${{ runner.os }} ~/test-cache

-    # We're using node -e to call the functions directly available in the @actions/cache package
    - name: Save cache using saveCache()
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').saveCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"
+      run: node packages/cache/__tests__/save-cache.mjs ${{ runner.os }} ${{ github.run_id }}

    - name: Delete cache folders before restoring
      shell: bash
@@ -67,8 +65,7 @@ jobs:
        rm -rf ~/test-cache

    - name: Restore cache using restoreCache() with http-client
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').restoreCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}',[],{useAzureSdk: false}))"
+      run: node packages/cache/__tests__/restore-cache.mjs ${{ runner.os }} ${{ github.run_id }} false

    - name: Verify cache restored with http-client
      shell: bash
@@ -83,8 +80,7 @@ jobs:
        rm -rf ~/test-cache

    - name: Restore cache using restoreCache() with Azure SDK
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').restoreCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"
+      run: node packages/cache/__tests__/restore-cache.mjs ${{ runner.os }} ${{ github.run_id }} true

    - name: Verify cache restored with Azure SDK
      shell: bash
@@ -52,10 +52,8 @@ jobs:
      shell: bash
      run: packages/cache/__tests__/create-cache-files.sh ${{ runner.os }} ~/test-cache

-    # We're using node -e to call the functions directly available in the @actions/cache package
    - name: Save cache using saveCache()
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').saveCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"
+      run: node packages/cache/__tests__/save-cache.mjs ${{ runner.os }} ${{ github.run_id }}

    - name: Delete cache folders before restoring
      shell: bash
@@ -64,8 +62,7 @@ jobs:
        rm -rf ~/test-cache

    - name: Restore cache using restoreCache() with http-client
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').restoreCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}',[],{useAzureSdk: false}))"
+      run: node packages/cache/__tests__/restore-cache.mjs ${{ runner.os }} ${{ github.run_id }} false

    - name: Verify cache restored with http-client
      shell: bash
@@ -80,8 +77,7 @@ jobs:
        rm -rf ~/test-cache

    - name: Restore cache using restoreCache() with Azure SDK
-      run: |
-        node -e "Promise.resolve(require('./packages/cache/lib/cache').restoreCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"
+      run: node packages/cache/__tests__/restore-cache.mjs ${{ runner.os }} ${{ github.run_id }} true

    - name: Verify cache restored with Azure SDK
      shell: bash
@@ -1,6 +1,6 @@
 name: Publish NPM

-run-name: Publish NPM - ${{ github.event.inputs.package }}
+run-name: Publish NPM - ${{ inputs.package }} from ${{ inputs.branch }}

 on:
  workflow_dispatch:
@@ -20,21 +20,37 @@ on:
          - http-client
          - io
          - tool-cache
-          
+      branch:
+        type: string
+        required: false
+        default: 'main'
+        description: 'Branch to release from'
+      npm-tag:
+        type: string
+        required: false
+        default: 'latest'
+        description: 'npm dist-tag for the release. Use "latest" for main branch releases. For non-main branches, use a non-semver tag like "v1-longlived". Semver values (e.g. "5.0.0") are not valid dist-tags and will be rejected by npm.'
+      test-all:
+        type: boolean
+        required: false
+        default: false
+        description: 'Run tests for all packages instead of only the package being published'

 jobs:
  test:
-    runs-on: macos-latest-large
+    runs-on: ubuntu-latest

    steps:
      - name: setup repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ inputs.branch }}

      - name: verify package exists
        run: ls packages/${{ github.event.inputs.package }}

      - name: Set Node.js 24.x
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
        with:
          node-version: 24.x

@@ -48,20 +64,25 @@ jobs:
        run: npm run build

      - name: test
-        run: npm run test
+        run: |
+          if [ "${{ inputs.test-all }}" = "true" ]; then
+            npm run test
+          else
+            npm run test -- --testPathPattern="packages/${{ inputs.package }}"
+          fi

      - name: pack
        run: npm pack
        working-directory: packages/${{ github.event.inputs.package }}

      - name: upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
        with:
          name: ${{ github.event.inputs.package }}
          path: packages/${{ github.event.inputs.package }}/*.tgz

  publish:
-    runs-on: macos-latest-large
+    runs-on: ubuntu-slim
    needs: test
    environment: npm-publish
    permissions:
@@ -70,29 +91,35 @@ jobs:
    steps:

      - name: Set Node.js 24.x
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
        with:
          node-version: 24.x

      - name: download artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
        with:
-          name: ${{ github.event.inputs.package }}
+          name: ${{ inputs.package }}
+
+      - name: guard against publishing latest from non-main branch
+        if: inputs.branch != 'main' && inputs.npm-tag == 'latest'
+        run: |
+          echo "::error::Publishing with the 'latest' dist-tag from a non-main branch ('${{ inputs.branch }}') is not allowed. Use the package major version as the tag (e.g. v5)."
+          exit 1

      - name: publish
-        run: npm publish --provenance *.tgz
+        run: npm publish --provenance --tag "${{ inputs.npm-tag }}" *.tgz

      - name: notify slack on failure
        if: failure()
        run: |
-          curl -X POST -H 'Content-type: application/json' --data '{"text":":pb__failed: Failed to publish a new version of ${{ github.event.inputs.package }}"}' $SLACK_WEBHOOK
+          curl -X POST -H 'Content-type: application/json' --data '{"text":":pb__failed: Failed to publish a new version of ${{ inputs.package }} from ${{ inputs.branch }} (tag: ${{ inputs.npm-tag }})"}' $SLACK_WEBHOOK
        env:
          SLACK_WEBHOOK: ${{ secrets.SLACK }}

      - name: notify slack on success
        if: success()
        run: |
-          curl -X POST -H 'Content-type: application/json' --data '{"text":":dance: Successfully published a new version of ${{ github.event.inputs.package }}"}' $SLACK_WEBHOOK
+          curl -X POST -H 'Content-type: application/json' --data '{"text":":dance: Successfully published a new version of ${{ inputs.package }} from ${{ inputs.branch }} (tag: ${{ inputs.npm-tag }})"}' $SLACK_WEBHOOK
        env:
          SLACK_WEBHOOK: ${{ secrets.SLACK }}

@@ -0,0 +1,82 @@
+# Releasing Packages
+
+Packages are published to npm via the **Publish NPM** workflow ([`.github/workflows/releases.yml`](../.github/workflows/releases.yml)). The workflow is triggered manually through `workflow_dispatch` from the GitHub Actions UI.
+
+## How it works
+
+The workflow has two jobs:
+
+1. **test** — Checks out the specified branch, installs dependencies, bootstraps the monorepo, builds all packages, runs tests, then packs the target package into a `.tgz` archive and uploads it as a workflow artifact.
+2. **publish** — Downloads the packed artifact and publishes it to npm with `--provenance` (OIDC-based). Sends a Slack notification on success or failure. Requires the `npm-publish` environment.
+
+## Inputs
+
+| Input | Type | Required | Default | Description |
+|---|---|---|---|---|
+| `package` | choice | **yes** | — | Which package to release. One of: `artifact`, `attest`, `cache`, `core`, `exec`, `github`, `glob`, `http-client`, `io`, `tool-cache`. |
+| `branch` | string | no | `main` | The branch to check out and release from. |
+| `npm-tag` | string | no | `latest` | The npm dist-tag to publish under. See [Dist-tags](#dist-tags) below. |
+| `test-all` | boolean | no | `false` | When `false`, only tests for the selected package are run. Set to `true` to run the full test suite across all packages. |
+
+## Dist-tags
+
+npm dist-tags control which version users get when they `npm install @actions/<package>` (or `@<tag>`).
+
+> **Important:** npm dist-tags **cannot** be valid semver strings. Values like `5.0.0` or `1.2.3` will be rejected by npm. Use a descriptive name instead.
+
+- **`latest`** — The default tag. This is what users get with a plain `npm install`. Should only be used for releases from `main`.
+- **Custom tags** (e.g. `v1-longlived`) — Used for releases from long-lived or experimental branches.
+
+Examples of **valid** dist-tags: `latest`, `next`, `beta`, `v1-longlived`
+Examples of **invalid** dist-tags: `5.0.0`, `1.2.3`, `6.0.0-rc.1` (these are semver and will be rejected)
+
+| ![Screenshot showcasing the npm distribution tags](assets/npm-dist-tags.png) |
+|---|
+| npm distribution tags |
+
+### Safety guard
+
+The workflow **blocks** publishing with the `latest` dist-tag from any branch other than `main`. This prevents accidentally overwriting `latest` with a version from an older or experimental branch. If you're releasing from a non-main branch, use the package's major version as the tag (e.g. `v5`).
+
+## Examples
+
+### Standard release from main
+
+Use default inputs — just pick the package:
+
+| Input | Value |
+|---|---|
+| `package` | `core` |
+| `branch` | `main` (default) |
+| `npm-tag` | `latest` (default) |
+| `test-all` | `false` (default) |
+
+This publishes the version in `packages/core/package.json` on `main` as `@actions/core@latest`.
+
+### Patch release from a long-lived branch
+
+| Input | Value |
+|---|---|
+| `package` | `artifact` |
+| `branch` | `releases/v5` |
+| `npm-tag` | `v5` |
+| `test-all` | `false` (default) |
+
+This publishes the version in `packages/artifact/package.json` on the `releases/v5` branch under the `v5` dist-tag. The `latest` tag remains untouched.
+
+### Release with full test suite
+
+| Input | Value |
+|---|---|
+| `package` | `cache` |
+| `branch` | `main` (default) |
+| `npm-tag` | `latest` (default) |
+| `test-all` | `true` |
+
+Same as a standard release, but runs tests for all packages before publishing.
+
+## Prerequisites
+
+- You must have permission to trigger workflows on this repository.
+- The `npm-publish` environment must be configured with npm credentials and OIDC.
+- The `SLACK` secret must be set for Slack notifications to work.
@@ -4,8 +4,35 @@ module.exports = {
  roots: ['<rootDir>/packages'],
  testEnvironment: 'node',
  testMatch: ['**/__tests__/*.test.ts'],
-  transform: {
-    '^.+\\.ts$': ['ts-jest', {isolatedModules: true, diagnostics: {warnOnly: true}}]
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+    '^@actions/core$': '<rootDir>/packages/core/lib/core.js',
+    '^@actions/exec$': '<rootDir>/packages/exec/lib/exec.js',
+    '^@actions/io$': '<rootDir>/packages/io/lib/io.js',
+    '^@actions/io/lib/io-util$': '<rootDir>/packages/io/lib/io-util.js',
+    '^@actions/http-client$': '<rootDir>/packages/http-client/lib/index.js',
+    '^@actions/http-client/lib/auth$': '<rootDir>/packages/http-client/lib/auth.js',
+    '^@actions/http-client/lib/interfaces$': '<rootDir>/packages/http-client/lib/interfaces.js',
+    '^@actions/github$': '<rootDir>/packages/github/lib/github.js',
+    '^@actions/github/lib/utils$': '<rootDir>/packages/github/lib/utils.js',
+    '^@actions/glob$': '<rootDir>/packages/glob/lib/glob.js',
+    '^@actions/tool-cache$': '<rootDir>/packages/tool-cache/lib/tool-cache.js',
+    '^@actions/cache$': '<rootDir>/packages/cache/lib/cache.js',
+    '^@actions/attest$': '<rootDir>/packages/attest/lib/index.js'
  },
+  transform: {
+    '^.+\\.(ts|js)$': ['ts-jest', {
+      diagnostics: {warnOnly: true},
+      tsconfig: {
+        allowJs: true,
+        esModuleInterop: true,
+        module: 'commonjs',
+        moduleResolution: 'node'
+      }
+    }]
+  },
+  transformIgnorePatterns: [
+    '/node_modules/(?!(@octokit|@actions/github|@actions/http-client|@actions/io|@actions/exec|@actions/core|@actions/glob|@actions/tool-cache|@actions/cache|@actions/attest|universal-user-agent|before-after-hook)/)'
+  ],
  verbose: true
 }
@@ -2956,67 +2956,67 @@
      }
    },
    "node_modules/@octokit/auth-token": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
-      "integrity": "sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-6.0.0.tgz",
+      "integrity": "sha512-P4YJBPdPSpWTQ1NU4XYdvHvXJJDxM6YwpS0FZHRgP7YFkdVxsWcpWGy/NVqlAA7PcPCnMacXlRm1y2PFZRWL/w==",
      "dev": true,
      "license": "MIT",
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/core": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-5.2.2.tgz",
-      "integrity": "sha512-/g2d4sW9nUDJOMz3mabVQvOGhVa4e/BN/Um7yca9Bb2XTzPPnfTWHWQg+IsEYO7M3Vx+EXvaM/I2pJWIMun1bg==",
+      "version": "7.0.6",
+      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-7.0.6.tgz",
+      "integrity": "sha512-DhGl4xMVFGVIyMwswXeyzdL4uXD5OGILGX5N8Y+f6W7LhC1Ze2poSNrkF/fedpVDHEEZ+PHFW0vL14I+mm8K3Q==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@octokit/auth-token": "^4.0.0",
-        "@octokit/graphql": "^7.1.0",
-        "@octokit/request": "^8.4.1",
-        "@octokit/request-error": "^5.1.1",
-        "@octokit/types": "^13.0.0",
-        "before-after-hook": "^2.2.0",
-        "universal-user-agent": "^6.0.0"
+        "@octokit/auth-token": "^6.0.0",
+        "@octokit/graphql": "^9.0.3",
+        "@octokit/request": "^10.0.6",
+        "@octokit/request-error": "^7.0.2",
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-        "@octokit/types": "^13.1.0",
-        "universal-user-agent": "^6.0.0"
+        "@octokit/types": "^16.0.0",
+        "universal-user-agent": "^7.0.2"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
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    "node_modules/@octokit/graphql": {
-      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-7.1.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-9.0.3.tgz",
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-        "@octokit/types": "^13.0.0",
-        "universal-user-agent": "^6.0.0"
+        "@octokit/request": "^10.0.6",
+        "@octokit/types": "^16.0.0",
+        "universal-user-agent": "^7.0.0"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
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-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-24.2.0.tgz",
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+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-27.0.0.tgz",
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      "license": "MIT"
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@@ -3028,36 +3028,19 @@
      "license": "MIT"
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-      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-9.2.2.tgz",
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+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-14.0.0.tgz",
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      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@octokit/types": "^12.6.0"
+        "@octokit/types": "^16.0.0"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      },
      "peerDependencies": {
-        "@octokit/core": "5"
-      }
-    },
-    "node_modules/@octokit/plugin-paginate-rest/node_modules/@octokit/openapi-types": {
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-      "dev": true,
-      "license": "MIT"
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-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/openapi-types": "^20.0.0"
+        "@octokit/core": ">=6"
      }
    },
    "node_modules/@octokit/plugin-request-log": {
@@ -3105,34 +3088,33 @@
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+      "version": "10.0.7",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-10.0.7.tgz",
+      "integrity": "sha512-v93h0i1yu4idj8qFPZwjehoJx4j3Ntn+JhXsdJrG9pYaX6j/XRz2RmasMUHtNgQD39nrv/VwTWSqK0RNXR8upA==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@octokit/endpoint": "^9.0.6",
-        "@octokit/request-error": "^5.1.1",
-        "@octokit/types": "^13.1.0",
-        "universal-user-agent": "^6.0.0"
+        "@octokit/endpoint": "^11.0.2",
+        "@octokit/request-error": "^7.0.2",
+        "@octokit/types": "^16.0.0",
+        "fast-content-type-parse": "^3.0.0",
+        "universal-user-agent": "^7.0.2"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/request-error": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-5.1.1.tgz",
-      "integrity": "sha512-v9iyEQJH6ZntoENr9/yXxjuezh4My67CBSu9r6Ve/05Iu5gNgnisNWOsoJHTP6k0Rr0+HQIpnH+kyammu90q/g==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-7.1.0.tgz",
+      "integrity": "sha512-KMQIfq5sOPpkQYajXHwnhjCC0slzCNScLHs9JafXc4RAJI+9f+jNDlBNaIMTvazOPLgb4BnlhGJOTbnN0wIjPw==",
      "dev": true,
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      "dependencies": {
-        "@octokit/types": "^13.1.0",
-        "deprecation": "^2.0.0",
-        "once": "^1.4.0"
+        "@octokit/types": "^16.0.0"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/rest": {
@@ -3152,13 +3134,13 @@
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-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-13.10.0.tgz",
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+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-16.0.0.tgz",
+      "integrity": "sha512-sKq+9r1Mm4efXW1FCk7hFSeJo4QKreL/tTbR0rz/qx/r1Oa2VV83LTA/H/MuCOX7uCIJmQVRKBcbmWoySjAnSg==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@octokit/openapi-types": "^24.2.0"
+        "@octokit/openapi-types": "^27.0.0"
      }
    },
    "node_modules/@parcel/watcher": {
@@ -4340,15 +4322,15 @@
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-      "resolved": "https://registry.npmjs.org/axios/-/axios-1.12.2.tgz",
-      "integrity": "sha512-vMJzPewAlRyOgxV2dU0Cuz2O8zzzx9VYtbJOaBgXFeLc4IV/Eg50n4LowmehOOR61S8ZMpc2K5Sa7g6A4jfkUw==",
+      "version": "1.15.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.15.1.tgz",
+      "integrity": "sha512-WOG+Jj8ZOvR0a3rAn+Tuf1UQJRxw5venr6DgdbJzngJE3qG7X0kL83CZGpdHMxEm+ZK3seAbvFsw4FfOfP9vxg==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "follow-redirects": "^1.15.6",
-        "form-data": "^4.0.4",
-        "proxy-from-env": "^1.1.0"
+        "follow-redirects": "^1.15.11",
+        "form-data": "^4.0.5",
+        "proxy-from-env": "^2.1.0"
      }
    },
    "node_modules/axobject-query": {
@@ -4516,9 +4498,9 @@
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-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-2.2.3.tgz",
-      "integrity": "sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-4.0.0.tgz",
+      "integrity": "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ==",
      "dev": true,
      "license": "Apache-2.0"
    },
@@ -6986,6 +6968,23 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/fast-content-type-parse": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/fast-content-type-parse/-/fast-content-type-parse-3.0.0.tgz",
+      "integrity": "sha512-ZvLdcY8P+N8mGQJahJV5G4U88CSvT1rP8ApL6uETe88MBXrBHAkZlSEySdUlyztF7ccb+Znos3TFqaepHxdhBg==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT"
+    },
    "node_modules/fast-deep-equal": {
      "version": "3.1.3",
      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
@@ -7216,9 +7215,9 @@
      }
    },
    "node_modules/flatted": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.3.3.tgz",
-      "integrity": "sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg==",
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+      "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
      "dev": true,
      "license": "ISC"
    },
@@ -7236,9 +7235,9 @@
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    },
    "node_modules/follow-redirects": {
-      "version": "1.15.11",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
-      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.16.0.tgz",
+      "integrity": "sha512-y5rN/uOsadFT/JfYwhxRS5R7Qce+g3zG97+JrtFZlC9klX/W5hD7iiLzScI4nZqUS7DNUdhPgw4xI8W2LuXlUw==",
      "dev": true,
      "funding": [
        {
@@ -10762,9 +10761,9 @@
      }
    },
    "node_modules/lodash": {
-      "version": "4.17.21",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
+      "version": "4.17.23",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+      "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w==",
      "dev": true,
      "license": "MIT"
    },
@@ -13279,9 +13278,9 @@
      "license": "ISC"
    },
    "node_modules/picomatch": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
-      "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.2.tgz",
+      "integrity": "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==",
      "dev": true,
      "license": "MIT",
      "engines": {
@@ -13571,11 +13570,14 @@
      "license": "MIT"
    },
    "node_modules/proxy-from-env": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
-      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-2.1.0.tgz",
+      "integrity": "sha512-cJ+oHTW1VAEa8cJslgmUZrc+sjRKgAKl3Zyse6+PV38hZe/V6Z14TbCuXcan9F9ghlz4QrFr2c92TNF82UkYHA==",
      "dev": true,
-      "license": "MIT"
+      "license": "MIT",
+      "engines": {
+        "node": ">=10"
+      }
    },
    "node_modules/pure-rand": {
      "version": "6.1.0",
@@ -15859,9 +15861,9 @@
      }
    },
    "node_modules/universal-user-agent": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-6.0.1.tgz",
-      "integrity": "sha512-yCzhz6FN2wU1NiiQRogkTQszlQSlpWaw8SvVegAc+bDxbzHgh1vX8uIe8OYyMH6DwH+sdTJsgMl36+mSMdRJIQ==",
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-7.0.3.tgz",
+      "integrity": "sha512-TmnEAEAsBJVZM/AADELsK76llnwcf9vMKuPz8JflO1frO8Lchitr0fNaN9d+Ap0BjKtqWqd/J17qeDnXh8CL2A==",
      "dev": true,
      "license": "ISC"
    },
@@ -36,10 +36,10 @@
  "overrides": {
    "semver": "^7.6.0",
    "tar": "^6.2.1",
-    "@octokit/plugin-paginate-rest": "^9.2.2",
-    "@octokit/request": "^8.4.1",
-    "@octokit/request-error": "^5.1.1",
-    "@octokit/core": "^5.0.3",
+    "@octokit/plugin-paginate-rest": "^14.0.0",
+    "@octokit/request": "^10.0.7",
+    "@octokit/request-error": "^7.1.0",
+    "@octokit/core": "^7.0.6",
    "tmp": "^0.2.4",
    "@types/node": "^24.1.0",
    "brace-expansion": "^2.0.2",
@@ -4,7 +4,6 @@ Interact programmatically with [Actions Artifacts](https://docs.github.com/en/ac

 This is the core library that powers the [`@actions/upload-artifact`](https://github.com/actions/upload-artifact) and [`@actions/download-artifact`](https://github.com/actions/download-artifact) actions.

-
 - [`@actions/artifact`](#actionsartifact)
  - [v2 - What's New](#v2---whats-new)
    - [Improvements](#improvements)
@@ -1,129 +1,161 @@
 # @actions/artifact Releases

-### 4.0.0
+## 6.2.1
+
+- Support the RFC 5987 `filename*` field in the `content-disposition` header. This allows us to correctly download files and artifacts with Chinese/Japanese/Korean (among other) characters in their name.
+
+## 6.2.0
+
+- Support uploading single un-archived files (not zipped). Direct uploads are only supported for artifacts version 7+ (based on the major version of `actions/upload-artifact`). Callers must pass the `skipArchive` option to `uploadArtifact`. Only single files can be uploaded at a time right now. Default behavior should remain unchanged if `skipArchive = false`. When `skipArchive = true`, the name of the file is used as the name of the artifact for consistency with the downloads: you upload `artifact.txt`, you download `artifact.txt`.
+
+## 6.1.0
+
+- Support downloading non-zip artifacts. Zipped artifacts will be decompressed automatically (with an optional override). Un-zipped artifacts will be downloaded as-is.
+
+## 6.0.0
+
+- **Breaking change**: Package is now ESM-only
+  - CommonJS consumers must use dynamic `import()` instead of `require()`
+
+## 5.0.3
+
+- Bump `@actions/http-client` to `3.0.2`
+
+## 5.0.1
+
+- Fix Node.js 24 punycode deprecation warning by updating `@azure/storage-blob` from `^12.15.0` to `^12.29.1` [#2211](https://github.com/actions/toolkit/pull/2211)
+- Removed direct `@azure/core-http` dependency (now uses `@azure/core-rest-pipeline` via storage-blob)
+
+## 5.0.0
+
+- Dependency updates for Node.js 24 runtime support
+- Update `@actions/core` to v2
+- Update `@actions/http-client` to v3
+
+## 4.0.0

 - Add support for Node 24 [#2110](https://github.com/actions/toolkit/pull/2110)
 - Fix: artifact pagination bugs and configurable artifact count limits [#2165](https://github.com/actions/toolkit/pull/2165)
 - Fix: reject the promise on timeout [#2124](https://github.com/actions/toolkit/pull/2124)
 - Update dependency versions

-### 2.3.3
+## 2.3.3

 - Dependency updates [#2049](https://github.com/actions/toolkit/pull/2049)

-### 2.3.2
+## 2.3.2

 - Added masking for Shared Access Signature (SAS) artifact URLs [#1982](https://github.com/actions/toolkit/pull/1982)
- Change hash to digest for consistent terminology across runner logs [#1991](https://github.com/actions/toolkit/pull/1991) 
+- Change hash to digest for consistent terminology across runner logs [#1991](https://github.com/actions/toolkit/pull/1991)

-### 2.3.1
+## 2.3.1

 - Fix comment typo on expectedHash. [#1986](https://github.com/actions/toolkit/pull/1986)

-### 2.3.0
+## 2.3.0

 - Allow ArtifactClient to perform digest comparisons, if supplied. [#1975](https://github.com/actions/toolkit/pull/1975)

-### 2.2.2
+## 2.2.2

 - Default concurrency to 5 for uploading artifacts [#1962](https://github.com/actions/toolkit/pull/1962)

-### 2.2.1
+## 2.2.1

 - Add `ACTIONS_ARTIFACT_UPLOAD_CONCURRENCY` and `ACTIONS_ARTIFACT_UPLOAD_TIMEOUT_MS` environment variables [#1928](https://github.com/actions/toolkit/pull/1928)

-### 2.2.0
+## 2.2.0

 - Return artifact digest on upload [#1896](https://github.com/actions/toolkit/pull/1896)

-### 2.1.11
+## 2.1.11

 - Fixed a bug with relative symlinks resolution [#1844](https://github.com/actions/toolkit/pull/1844)
 - Use native `crypto` [#1815](https://github.com/actions/toolkit/pull/1815)

-### 2.1.10
+## 2.1.10

 - Fixed a regression with symlinks not being automatically resolved [#1830](https://github.com/actions/toolkit/pull/1830)
 - Fixed a regression with chunk timeout [#1786](https://github.com/actions/toolkit/pull/1786)

-### 2.1.9
+## 2.1.9

 - Fixed artifact upload chunk timeout logic [#1774](https://github.com/actions/toolkit/pull/1774)
 - Use lazy stream to prevent issues with open file limits [#1771](https://github.com/actions/toolkit/pull/1771)

-### 2.1.8
+## 2.1.8

 - Allows `*.localhost` domains for hostname checks for local development.

-### 2.1.7
+## 2.1.7

 - Update unzip-stream dependency and reverted to using `unzip.Extract()`

-### 2.1.6
+## 2.1.6

 - Will retry on invalid request responses.

-### 2.1.5
+## 2.1.5

 - Bumped `archiver` dependency to 7.0.1

-### 2.1.4
+## 2.1.4

 - Adds info-level logging for zip extraction

-### 2.1.3
+## 2.1.3

 - Fixes a bug in the extract logic updated in 2.1.2

-### 2.1.2
+## 2.1.2

 - Updated the stream extract functionality to use `unzip.Parse()` instead of `unzip.Extract()` for greater control of unzipping artifacts

-### 2.1.1
+## 2.1.1

 - Updated `isGhes` check to include `.ghe.com` and `.ghe.localhost` as accepted hosts

-### 2.1.0
+## 2.1.0

 - Added `ArtifactClient#deleteArtifact` to delete artifacts by name [#1626](https://github.com/actions/toolkit/pull/1626)
 - Update error messaging to be more useful [#1628](https://github.com/actions/toolkit/pull/1628)

-### 2.0.1
+## 2.0.1

- Patch to fix transient request timeouts https://github.com/actions/download-artifact/issues/249
+- Patch to fix transient request timeouts <https://github.com/actions/download-artifact/issues/249>

-### 2.0.0
+## 2.0.0

 - Major release. Supports new Artifact backend for improved speed, reliability and behavior.
 - Numerous API changes, [some breaking](./README.md#breaking-changes).

 - [Blog post with more info](https://github.blog/2024-02-12-get-started-with-v4-of-github-actions-artifacts/)

-### 1.1.1
+## 1.1.1

 - Fixed a bug in Node16 where if an HTTP download finished too quickly (<1ms, e.g. when it's mocked) we attempt to delete a temp file that has not been created yet [#1278](https://github.com/actions/toolkit/pull/1278/commits/b9de68a590daf37c6747e38d3cb4f1dd2cfb791c)

-### 1.1.0
+## 1.1.0

 - Add `x-actions-results-crc64` and `x-actions-results-md5` checksum headers on upload [#1063](https://github.com/actions/toolkit/pull/1063)

-### 1.0.2
+## 1.0.2

 - Update to v2.0.1 of `@actions/http-client` [#1087](https://github.com/actions/toolkit/pull/1087)

-### 1.0.1
+## 1.0.1

 - Update to v2.0.0 of `@actions/http-client`

-### 1.0.0
+## 1.0.0

 - Update `lockfileVersion` to `v2` in `package-lock.json` [#1009](https://github.com/actions/toolkit/pull/1009)

-### 0.6.1
+## 0.6.1

 - Fix for failing 0 byte file uploads on Windows [#962](https://github.com/actions/toolkit/pull/962)

-### 0.6.0
+## 0.6.0

 - Support upload from named pipes [#748](https://github.com/actions/toolkit/pull/748)
 - Fixes to percentage values being greater than 100% when downloading all artifacts [#889](https://github.com/actions/toolkit/pull/889)
@@ -132,49 +164,49 @@
 - Faster upload speeds for certain types of large files by exempting gzip compression [#956](https://github.com/actions/toolkit/pull/956)
 - More detailed logging when dealing with chunked uploads [#957](https://github.com/actions/toolkit/pull/957)
  
-### 0.5.2
+## 0.5.2

 - Add HTTP 500 as a retryable status code for artifact upload and download.
  
-### 0.5.1
+## 0.5.1

 - Bump @actions/http-client to version 1.0.11 to fix proxy related issues during artifact upload and download

-### 0.5.0
+## 0.5.0

 - Improved retry-ability for all http calls during artifact upload and download if an error is encountered

-### 0.4.2
+## 0.4.2

 - Improved retry-ability when a partial artifact download is encountered

-### 0.4.1
+## 0.4.1

 - Update to latest @actions/core version

-### 0.4.0
+## 0.4.0

 - Add option to specify custom retentions on artifacts
- 
-### 0.3.5
+
+## 0.3.5

 - Retry in the event of a 413 response

-### 0.3.3
+## 0.3.3

 - Increase chunk size during upload from 4MB to 8MB
 - Improve user-agent strings during API calls to help internally diagnose issues

-### 0.3.2
+## 0.3.2

 - Fix to ensure readstreams get correctly reset in the event of a retry

-### 0.3.1
+## 0.3.1

 - Fix to ensure temporary gzip files get correctly deleted during artifact upload
 - Remove spaces as a forbidden character during upload

-### 0.3.0
+## 0.3.0

 - Fixes to gzip decompression when downloading artifacts
 - Support handling 429 response codes
@@ -183,13 +215,13 @@
 - Clearer error message if storage quota has been reached
 - Improved logging and output during artifact download

-### 0.2.0
+## 0.2.0

 - Fixes to TCP connections not closing
 - GZip file compression to speed up downloads
 - Improved logging and output
 - Extra documentation

-### 0.1.0
+## 0.1.0

 - Initial release
@@ -1,10 +1,10 @@
 import * as http from 'http'
 import * as net from 'net'
 import {HttpClient} from '@actions/http-client'
-import * as config from '../src/internal/shared/config'
-import {internalArtifactTwirpClient} from '../src/internal/shared/artifact-twirp-client'
-import {noopLogs} from './common'
-import {NetworkError, UsageError} from '../src/internal/shared/errors'
+import * as config from '../src/internal/shared/config.js'
+import {internalArtifactTwirpClient} from '../src/internal/shared/artifact-twirp-client.js'
+import {noopLogs} from './common.js'
+import {NetworkError, UsageError} from '../src/internal/shared/errors.js'

 jest.mock('@actions/http-client')

@@ -1,4 +1,4 @@
-import * as config from '../src/internal/shared/config'
+import * as config from '../src/internal/shared/config.js'
 import os from 'os'

 // Mock the `cpus()` function in the `os` module
@@ -4,11 +4,11 @@ import type {RequestInterface} from '@octokit/types'
 import {
  deleteArtifactInternal,
  deleteArtifactPublic
-} from '../src/internal/delete/delete-artifact'
-import * as config from '../src/internal/shared/config'
-import {ArtifactServiceClientJSON, Timestamp} from '../src/generated'
-import * as util from '../src/internal/shared/util'
-import {noopLogs} from './common'
+} from '../src/internal/delete/delete-artifact.js'
+import * as config from '../src/internal/shared/config.js'
+import {ArtifactServiceClientJSON, Timestamp} from '../src/generated/index.js'
+import * as util from '../src/internal/shared/util.js'
+import {noopLogs} from './common.js'

 type MockedRequest = jest.MockedFunction<RequestInterface<object>>

@@ -11,12 +11,12 @@ import {
  downloadArtifactInternal,
  downloadArtifactPublic,
  streamExtractExternal
-} from '../src/internal/download/download-artifact'
-import {getUserAgentString} from '../src/internal/shared/user-agent'
-import {noopLogs} from './common'
-import * as config from '../src/internal/shared/config'
-import {ArtifactServiceClientJSON} from '../src/generated'
-import * as util from '../src/internal/shared/util'
+} from '../src/internal/download/download-artifact.js'
+import {getUserAgentString} from '../src/internal/shared/user-agent.js'
+import {noopLogs} from './common.js'
+import * as config from '../src/internal/shared/config.js'
+import {ArtifactServiceClientJSON} from '../src/generated/index.js'
+import * as util from '../src/internal/shared/util.js'

 type MockedDownloadArtifact = jest.MockedFunction<
  RestEndpointMethods['actions']['downloadArtifact']
@@ -104,6 +104,7 @@ const cleanup = async (): Promise<void> => {
 const mockGetArtifactSuccess = jest.fn(() => {
  const message = new http.IncomingMessage(new net.Socket())
  message.statusCode = 200
+  message.headers['content-type'] = 'application/zip'
  message.push(fs.readFileSync(fixtures.exampleArtifact.path))
  message.push(null)
  return {
@@ -114,6 +115,7 @@ const mockGetArtifactSuccess = jest.fn(() => {
 const mockGetArtifactHung = jest.fn(() => {
  const message = new http.IncomingMessage(new net.Socket())
  message.statusCode = 200
+  message.headers['content-type'] = 'application/zip'
  // Don't push any data or call push(null) to end the stream
  // This creates a stream that hangs and never completes
  return {
@@ -134,6 +136,7 @@ const mockGetArtifactFailure = jest.fn(() => {
 const mockGetArtifactMalicious = jest.fn(() => {
  const message = new http.IncomingMessage(new net.Socket())
  message.statusCode = 200
+  message.headers['content-type'] = 'application/zip'
  message.push(fs.readFileSync(path.join(__dirname, 'fixtures', 'evil.zip'))) // evil.zip contains files that are formatted x/../../etc/hosts
  message.push(null)
  return {
@@ -619,10 +622,17 @@ describe('download-artifact', () => {
        ...fixtures.backendIds,
        name: fixtures.artifactName
      })
-    })
+    }, 38000)
  })

  describe('streamExtractExternal', () => {
+    beforeEach(async () => {
+      await setup()
+      // Create workspace directory for streamExtractExternal tests
+      await fs.promises.mkdir(fixtures.workspaceDir, {recursive: true})
+    })
+    afterEach(cleanup)
+
    it('should fail if the timeout is exceeded', async () => {
      const mockSlowGetArtifact = jest.fn(mockGetArtifactHung)

@@ -641,12 +651,451 @@ describe('download-artifact', () => {
          {timeout: 2}
        )
        expect(true).toBe(false) // should not be called
-      } catch (e) {
+      } catch (error: unknown) {
+        const e = error as Error
        expect(e).toBeInstanceOf(Error)
        expect(e.message).toContain('did not respond in 2ms')
        expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
        expect(mockSlowGetArtifact).toHaveBeenCalledTimes(1)
      }
    })
+
+    it('should extract zip file when content-type is application/zip', async () => {
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetArtifactSuccess
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify files were extracted (not saved as a single file)
+      await expectExtractedArchive(fixtures.workspaceDir)
+    })
+
+    it('should save raw file without extracting when content-type is not a zip', async () => {
+      const rawFileContent = 'This is a raw text file, not a zip'
+      const rawFileName = 'my-artifact.txt'
+
+      const mockGetRawFile = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'text/plain'
+        message.headers['content-disposition'] =
+          `attachment; filename="${rawFileName}"`
+        message.push(Buffer.from(rawFileContent))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetRawFile
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify file was saved as-is, not extracted
+      const savedFilePath = path.join(fixtures.workspaceDir, rawFileName)
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+    })
+
+    it('should save raw file with default name when content-disposition is missing', async () => {
+      const rawFileContent = 'Binary content here'
+
+      const mockGetRawFileNoDisposition = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'application/octet-stream'
+        // No content-disposition header
+        message.push(Buffer.from(rawFileContent))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetRawFileNoDisposition
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify file was saved with default name 'artifact'
+      const savedFilePath = path.join(fixtures.workspaceDir, 'artifact')
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+    })
+
+    it('should not attempt to unzip when content-type is image/png', async () => {
+      const pngFileName = 'screenshot.png'
+      // Simple PNG header bytes for testing
+      const pngContent = Buffer.from([
+        0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a
+      ])
+
+      const mockGetPngFile = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'image/png'
+        message.headers['content-disposition'] =
+          `attachment; filename="${pngFileName}"`
+        message.push(pngContent)
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetPngFile
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify PNG was saved as-is
+      const savedFilePath = path.join(fixtures.workspaceDir, pngFileName)
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath)).toEqual(pngContent)
+    })
+
+    it('should extract when content-type is application/x-zip-compressed', async () => {
+      const mockGetZipCompressed = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'application/x-zip-compressed'
+        message.push(fs.readFileSync(fixtures.exampleArtifact.path))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetZipCompressed
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify files were extracted
+      await expectExtractedArchive(fixtures.workspaceDir)
+    })
+
+    it('should extract zip when URL ends with .zip even if content-type is not application/zip', async () => {
+      const blobUrlWithZipExtension =
+        'https://blob-storage.local/artifact.zip?sig=abc123'
+
+      const mockGetZipByUrl = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        // Azure Blob Storage may return a generic content-type
+        message.headers['content-type'] = 'application/octet-stream'
+        message.push(fs.readFileSync(fixtures.exampleArtifact.path))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetZipByUrl
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        blobUrlWithZipExtension,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify files were extracted based on URL .zip extension
+      await expectExtractedArchive(fixtures.workspaceDir)
+    })
+
+    it('should skip decompression when skipDecompress option is true even for zip content-type', async () => {
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetArtifactSuccess
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir,
+        {skipDecompress: true}
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify zip was saved as-is, not extracted
+      // When skipDecompress is true, the file should be saved with default name 'artifact'
+      const savedFilePath = path.join(fixtures.workspaceDir, 'artifact')
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      // The saved file should be the raw zip content
+      const savedContent = fs.readFileSync(savedFilePath)
+      const originalZipContent = fs.readFileSync(fixtures.exampleArtifact.path)
+      expect(savedContent).toEqual(originalZipContent)
+    })
+
+    it('should sanitize path traversal attempts in Content-Disposition filename', async () => {
+      const rawFileContent = 'malicious content'
+      const maliciousFileName = '../../../etc/passwd'
+
+      const mockGetMaliciousFile = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'text/plain'
+        message.headers['content-disposition'] =
+          `attachment; filename="${maliciousFileName}"`
+        message.push(Buffer.from(rawFileContent))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetMaliciousFile
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Verify file was saved with sanitized name (just 'passwd', not the full path)
+      const sanitizedFileName = 'passwd'
+      const savedFilePath = path.join(fixtures.workspaceDir, sanitizedFileName)
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+
+      // Verify the file was NOT written outside the workspace directory
+      const maliciousPath = path.resolve(
+        fixtures.workspaceDir,
+        maliciousFileName
+      )
+      expect(fs.existsSync(maliciousPath)).toBe(false)
+    })
+
+    it('should handle encoded path traversal attempts in Content-Disposition filename', async () => {
+      const rawFileContent = 'encoded malicious content'
+      // URL encoded version of ../../../etc/passwd
+      const encodedMaliciousFileName = '..%2F..%2F..%2Fetc%2Fpasswd'
+
+      const mockGetEncodedMaliciousFile = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'application/octet-stream'
+        message.headers['content-disposition'] =
+          `attachment; filename="${encodedMaliciousFileName}"`
+        message.push(Buffer.from(rawFileContent))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetEncodedMaliciousFile
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // After decoding and sanitizing, should just be 'passwd'
+      const sanitizedFileName = 'passwd'
+      const savedFilePath = path.join(fixtures.workspaceDir, sanitizedFileName)
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+
+      // Verify the file was NOT written outside the workspace directory
+      const maliciousPathEncoded = path.resolve(
+        fixtures.workspaceDir,
+        encodedMaliciousFileName
+      )
+      expect(fs.existsSync(maliciousPathEncoded)).toBe(false)
+
+      const maliciousPath = path.resolve(
+        fixtures.workspaceDir,
+        '../../../etc/passwd'
+      )
+      expect(fs.existsSync(maliciousPath)).toBe(false)
+    })
+
+    it('should correctly handle Content-Disposition with filename* parameter (RFC 5987)', async () => {
+      const rawFileContent = 'content with rfc5987 encoding'
+      const expectedFileName = '报告-土-x.txt'
+      const asciiFileName = '__-_-x.txt'
+
+      const mockGetRfc5987File = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'text/plain'
+        // Server sends both: filename with _ fallbacks, filename* with UTF-8 encoding
+        message.headers['content-disposition'] =
+          `attachment; filename="${asciiFileName}"; filename*=UTF-8''${encodeURIComponent(expectedFileName)}`
+        message.push(Buffer.from(rawFileContent, 'utf8'))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetRfc5987File
+          }
+        }
+      )
+
+      await streamExtractExternal(
+        fixtures.blobStorageUrl,
+        fixtures.workspaceDir
+      )
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      const savedFilePath = path.join(fixtures.workspaceDir, expectedFileName)
+      expect(fs.existsSync(savedFilePath)).toBe(true)
+      expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+    })
+
+    it('should handle zip artifacts with Chinese characters in the artifact name', async () => {
+      // Simulate Azure Blob Storage URL with rscd containing Chinese filename
+      const chineseArtifactName = 'probe-土-x'
+      const asciiArtifactName = 'probe-_-x'
+      const blobUrlWithChineseName = `https://blob-storage.local/artifact.zip?rscd=${encodeURIComponent(`attachment; filename="${asciiArtifactName}.zip"; filename*=UTF-8''${encodeURIComponent(`${chineseArtifactName}.zip`)}`)}&rsct=application%2Fzip&sig=abc123`
+
+      const mockGetZip = jest.fn(() => {
+        const message = new http.IncomingMessage(new net.Socket())
+        message.statusCode = 200
+        message.headers['content-type'] = 'application/zip'
+        message.headers['content-disposition'] =
+          `attachment; filename="${asciiArtifactName}.zip"; filename*=UTF-8''${encodeURIComponent(`${chineseArtifactName}.zip`)}`
+        message.push(fs.readFileSync(fixtures.exampleArtifact.path))
+        message.push(null)
+        return {
+          message
+        }
+      })
+
+      const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+        () => {
+          return {
+            get: mockGetZip
+          }
+        }
+      )
+
+      await streamExtractExternal(blobUrlWithChineseName, fixtures.workspaceDir)
+
+      expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+      // Zip should be extracted normally regardless of Chinese artifact name
+      await expectExtractedArchive(fixtures.workspaceDir)
+    })
+
+    it.each([
+      ['土', '_'], // U+571F - known to cause 400 errors
+      ['日', '_'], // U+65E5 - reported to work fine
+      ['中文测试', '____'], // multiple Chinese characters
+      ['文件-2026年', '__-2026_'], // mixed Chinese and numbers
+      ['データ', '___'], // Japanese katakana
+      ['테스트', '___'] // Korean characters
+    ])(
+      'should prefer filename* over filename for non-ASCII character %s (%s)',
+      async (chars, asciiReplacement) => {
+        const rawFileContent = `content for ${chars}`
+        const expectedFileName = `artifact-${chars}.txt`
+        const asciiFileName = `artifact-${asciiReplacement}.txt`
+
+        const mockGetFile = jest.fn(() => {
+          const message = new http.IncomingMessage(new net.Socket())
+          message.statusCode = 200
+          message.headers['content-type'] = 'text/plain'
+          // Server sends filename with _ replacing non-ASCII, filename* with proper encoding
+          message.headers['content-disposition'] =
+            `attachment; filename="${asciiFileName}"; filename*=UTF-8''${encodeURIComponent(expectedFileName)}`
+          message.push(Buffer.from(rawFileContent, 'utf8'))
+          message.push(null)
+          return {
+            message
+          }
+        })
+
+        const mockHttpClient = (HttpClient as jest.Mock).mockImplementation(
+          () => {
+            return {
+              get: mockGetFile
+            }
+          }
+        )
+
+        await streamExtractExternal(
+          fixtures.blobStorageUrl,
+          fixtures.workspaceDir
+        )
+
+        expect(mockHttpClient).toHaveBeenCalledWith(getUserAgentString())
+        const savedFilePath = path.join(fixtures.workspaceDir, expectedFileName)
+        expect(fs.existsSync(savedFilePath)).toBe(true)
+        expect(fs.readFileSync(savedFilePath, 'utf8')).toBe(rawFileContent)
+      }
+    )
  })
 })
@@ -3,15 +3,15 @@ import type {RequestInterface} from '@octokit/types'
 import {
  getArtifactInternal,
  getArtifactPublic
-} from '../src/internal/find/get-artifact'
-import * as config from '../src/internal/shared/config'
-import {ArtifactServiceClientJSON, Timestamp} from '../src/generated'
-import * as util from '../src/internal/shared/util'
-import {noopLogs} from './common'
+} from '../src/internal/find/get-artifact.js'
+import * as config from '../src/internal/shared/config.js'
+import {ArtifactServiceClientJSON, Timestamp} from '../src/generated/index.js'
+import * as util from '../src/internal/shared/util.js'
+import {noopLogs} from './common.js'
 import {
  ArtifactNotFoundError,
  InvalidResponseError
-} from '../src/internal/shared/errors'
+} from '../src/internal/shared/errors.js'

 type MockedRequest = jest.MockedFunction<RequestInterface<object>>

@@ -3,12 +3,12 @@ import type {RestEndpointMethodTypes} from '@octokit/plugin-rest-endpoint-method
 import {
  listArtifactsInternal,
  listArtifactsPublic
-} from '../src/internal/find/list-artifacts'
-import * as config from '../src/internal/shared/config'
-import {ArtifactServiceClientJSON, Timestamp} from '../src/generated'
-import * as util from '../src/internal/shared/util'
-import {noopLogs} from './common'
-import {Artifact} from '../src/internal/shared/interfaces'
+} from '../src/internal/find/list-artifacts.js'
+import * as config from '../src/internal/shared/config.js'
+import {ArtifactServiceClientJSON, Timestamp} from '../src/generated/index.js'
+import * as util from '../src/internal/shared/util.js'
+import {noopLogs} from './common.js'
+import {Artifact} from '../src/internal/shared/interfaces.js'
 import {RequestInterface} from '@octokit/types'

 type MockedRequest = jest.MockedFunction<RequestInterface<object>>
@@ -1,9 +1,9 @@
 import {
  validateArtifactName,
  validateFilePath
-} from '../src/internal/upload/path-and-artifact-name-validation'
+} from '../src/internal/upload/path-and-artifact-name-validation.js'

-import {noopLogs} from './common'
+import {noopLogs} from './common.js'

 describe('Path and artifact name validation', () => {
  beforeAll(() => {
@@ -1,5 +1,5 @@
-import {Timestamp} from '../src/generated'
-import * as retention from '../src/internal/upload/retention'
+import {Timestamp} from '../src/generated/index.js'
+import * as retention from '../src/internal/upload/retention.js'

 describe('retention', () => {
  beforeEach(() => {
@@ -0,0 +1,59 @@
+import * as fs from 'fs'
+import * as path from 'path'
+import {createRawFileUploadStream} from '../src/internal/upload/stream.js'
+import {noopLogs} from './common.js'
+
+const fixtures = {
+  testDirectory: path.join(__dirname, '_temp', 'stream-test'),
+  testFile: path.join(__dirname, '_temp', 'stream-test', 'test-file.txt'),
+  testContent: 'hello stream test'
+}
+
+describe('createRawFileUploadStream', () => {
+  beforeAll(() => {
+    fs.mkdirSync(fixtures.testDirectory, {recursive: true})
+    fs.writeFileSync(fixtures.testFile, fixtures.testContent)
+  })
+
+  beforeEach(() => {
+    noopLogs()
+  })
+
+  afterEach(() => {
+    jest.restoreAllMocks()
+  })
+
+  it('should stream file contents through the upload stream', async () => {
+    const uploadStream = await createRawFileUploadStream(fixtures.testFile)
+
+    const chunks: Buffer[] = []
+    const result = await new Promise<string>((resolve, reject) => {
+      uploadStream.on('data', chunk => chunks.push(Buffer.from(chunk)))
+      uploadStream.on('end', () =>
+        resolve(Buffer.concat(chunks).toString('utf-8'))
+      )
+      uploadStream.on('error', reject)
+    })
+
+    expect(result).toBe(fixtures.testContent)
+  })
+
+  it('should propagate file read errors through the upload stream', async () => {
+    // Use a directory path — createReadStream on a directory fails cross-platform
+    // Mock lstat to return a non-symlink result so we reach createReadStream
+    const dirPath = fixtures.testDirectory
+    jest
+      .spyOn(fs.promises, 'lstat')
+      .mockResolvedValue({isSymbolicLink: () => false} as fs.Stats)
+
+    const uploadStream = await createRawFileUploadStream(dirPath)
+
+    await expect(
+      new Promise((resolve, reject) => {
+        uploadStream.on('data', resolve)
+        uploadStream.on('end', resolve)
+        uploadStream.on('error', reject)
+      })
+    ).rejects.toThrow('An error has occurred during file read for the artifact')
+  })
+})
@@ -1,12 +1,13 @@
-import * as uploadZipSpecification from '../src/internal/upload/upload-zip-specification'
-import * as zip from '../src/internal/upload/zip'
-import * as util from '../src/internal/shared/util'
-import * as config from '../src/internal/shared/config'
-import {ArtifactServiceClientJSON} from '../src/generated'
-import * as blobUpload from '../src/internal/upload/blob-upload'
-import {uploadArtifact} from '../src/internal/upload/upload-artifact'
-import {noopLogs} from './common'
-import {FilesNotFoundError} from '../src/internal/shared/errors'
+import * as uploadZipSpecification from '../src/internal/upload/upload-zip-specification.js'
+import * as zip from '../src/internal/upload/zip.js'
+import * as util from '../src/internal/shared/util.js'
+import * as config from '../src/internal/shared/config.js'
+import {ArtifactServiceClientJSON} from '../src/generated/index.js'
+import * as blobUpload from '../src/internal/upload/blob-upload.js'
+import {uploadArtifact} from '../src/internal/upload/upload-artifact.js'
+import {noopLogs} from './common.js'
+import {FilesNotFoundError} from '../src/internal/shared/errors.js'
+import * as stream from '../src/internal/upload/stream.js'
 import {BlockBlobUploadStreamOptions} from '@azure/storage-blob'
 import * as fs from 'fs'
 import * as path from 'path'
@@ -150,7 +151,7 @@ describe('upload-artifact', () => {
  it('should return false if the creation request fails', async () => {
    jest
      .spyOn(zip, 'createZipUploadStream')
-      .mockReturnValue(Promise.resolve(new zip.ZipUploadStream(1)))
+      .mockReturnValue(Promise.resolve(new stream.WaterMarkedUploadStream(1)))
    jest
      .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
      .mockReturnValue(Promise.resolve({ok: false, signedUploadUrl: ''}))
@@ -167,7 +168,7 @@ describe('upload-artifact', () => {
  it('should return false if blob storage upload is unsuccessful', async () => {
    jest
      .spyOn(zip, 'createZipUploadStream')
-      .mockReturnValue(Promise.resolve(new zip.ZipUploadStream(1)))
+      .mockReturnValue(Promise.resolve(new stream.WaterMarkedUploadStream(1)))
    jest
      .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
      .mockReturnValue(
@@ -177,7 +178,7 @@ describe('upload-artifact', () => {
        })
      )
    jest
-      .spyOn(blobUpload, 'uploadZipToBlobStorage')
+      .spyOn(blobUpload, 'uploadToBlobStorage')
      .mockReturnValue(Promise.reject(new Error('boom')))

    const uploadResp = uploadArtifact(
@@ -192,7 +193,7 @@ describe('upload-artifact', () => {
  it('should reject if finalize artifact fails', async () => {
    jest
      .spyOn(zip, 'createZipUploadStream')
-      .mockReturnValue(Promise.resolve(new zip.ZipUploadStream(1)))
+      .mockReturnValue(Promise.resolve(new stream.WaterMarkedUploadStream(1)))
    jest
      .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
      .mockReturnValue(
@@ -201,7 +202,7 @@ describe('upload-artifact', () => {
          signedUploadUrl: 'https://signed-upload-url.com'
        })
      )
-    jest.spyOn(blobUpload, 'uploadZipToBlobStorage').mockReturnValue(
+    jest.spyOn(blobUpload, 'uploadToBlobStorage').mockReturnValue(
      Promise.resolve({
        uploadSize: 1234,
        sha256Hash: 'test-sha256-hash'
@@ -370,4 +371,284 @@ describe('upload-artifact', () => {

    await expect(uploadResp).rejects.toThrow('Upload progress stalled.')
  })
+
+  describe('skipArchive option', () => {
+    it('should throw an error if skipArchive is true and files array is empty', async () => {
+      const uploadResp = uploadArtifact(
+        fixtures.inputs.artifactName,
+        [],
+        fixtures.inputs.rootDirectory,
+        {skipArchive: true}
+      )
+
+      await expect(uploadResp).rejects.toThrow(FilesNotFoundError)
+    })
+
+    it('should throw an error if skipArchive is true and multiple files are provided', async () => {
+      const uploadResp = uploadArtifact(
+        fixtures.inputs.artifactName,
+        fixtures.inputs.files,
+        fixtures.inputs.rootDirectory,
+        {skipArchive: true}
+      )
+
+      await expect(uploadResp).rejects.toThrow(
+        'skipArchive option is only supported when uploading a single file'
+      )
+    })
+
+    it('should upload a single file without archiving when skipArchive is true', async () => {
+      jest
+        .spyOn(uploadZipSpecification, 'getUploadZipSpecification')
+        .mockRestore()
+
+      const singleFile = path.join(fixtures.uploadDirectory, 'file1.txt')
+      const expectedContent = 'test 1 file content'
+
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            signedUploadUrl: 'https://signed-upload-url.local'
+          })
+        )
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'FinalizeArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            artifactId: '1'
+          })
+        )
+
+      let uploadedContent = ''
+      let loadedBytes = 0
+      uploadStreamMock.mockImplementation(
+        async (
+          stream: NodeJS.ReadableStream,
+          bufferSize?: number,
+          maxConcurrency?: number,
+          options?: BlockBlobUploadStreamOptions
+        ) => {
+          const {onProgress} = options || {}
+
+          onProgress?.({loadedBytes: 0})
+          return new Promise((resolve, reject) => {
+            stream.on('data', chunk => {
+              loadedBytes += chunk.length
+              uploadedContent += chunk.toString()
+              onProgress?.({loadedBytes})
+            })
+            stream.on('end', () => {
+              onProgress?.({loadedBytes})
+              resolve({})
+            })
+            stream.on('error', err => {
+              reject(err)
+            })
+          })
+        }
+      )
+
+      const {id, size, digest} = await uploadArtifact(
+        fixtures.inputs.artifactName,
+        [singleFile],
+        fixtures.uploadDirectory,
+        {skipArchive: true}
+      )
+
+      expect(id).toBe(1)
+      expect(size).toBe(loadedBytes)
+      expect(digest).toBeDefined()
+      expect(digest).toHaveLength(64)
+      // Verify the uploaded content is the raw file, not a zip
+      expect(uploadedContent).toBe(expectedContent)
+    })
+
+    it('should use the correct MIME type when skipArchive is true', async () => {
+      jest
+        .spyOn(uploadZipSpecification, 'getUploadZipSpecification')
+        .mockRestore()
+
+      const singleFile = path.join(fixtures.uploadDirectory, 'file1.txt')
+
+      const createArtifactSpy = jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            signedUploadUrl: 'https://signed-upload-url.local'
+          })
+        )
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'FinalizeArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            artifactId: '1'
+          })
+        )
+
+      uploadStreamMock.mockImplementation(
+        async (
+          stream: NodeJS.ReadableStream,
+          bufferSize?: number,
+          maxConcurrency?: number,
+          options?: BlockBlobUploadStreamOptions
+        ) => {
+          const {onProgress} = options || {}
+          onProgress?.({loadedBytes: 0})
+          return new Promise((resolve, reject) => {
+            stream.on('data', chunk => {
+              onProgress?.({loadedBytes: chunk.length})
+            })
+            stream.on('end', () => {
+              resolve({})
+            })
+            stream.on('error', err => {
+              reject(err)
+            })
+          })
+        }
+      )
+
+      await uploadArtifact(
+        fixtures.inputs.artifactName,
+        [singleFile],
+        fixtures.uploadDirectory,
+        {skipArchive: true}
+      )
+
+      // Verify CreateArtifact was called with the correct MIME type for .txt file
+      expect(createArtifactSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          mimeType: expect.objectContaining({value: 'text/plain'})
+        })
+      )
+    })
+
+    it('should use application/zip MIME type when skipArchive is false', async () => {
+      jest
+        .spyOn(uploadZipSpecification, 'getUploadZipSpecification')
+        .mockRestore()
+
+      const createArtifactSpy = jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            signedUploadUrl: 'https://signed-upload-url.local'
+          })
+        )
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'FinalizeArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            artifactId: '1'
+          })
+        )
+
+      uploadStreamMock.mockImplementation(
+        async (
+          stream: NodeJS.ReadableStream,
+          bufferSize?: number,
+          maxConcurrency?: number,
+          options?: BlockBlobUploadStreamOptions
+        ) => {
+          const {onProgress} = options || {}
+          onProgress?.({loadedBytes: 0})
+          return new Promise((resolve, reject) => {
+            stream.on('data', chunk => {
+              onProgress?.({loadedBytes: chunk.length})
+            })
+            stream.on('end', () => {
+              resolve({})
+            })
+            stream.on('error', err => {
+              reject(err)
+            })
+          })
+        }
+      )
+
+      await uploadArtifact(
+        fixtures.inputs.artifactName,
+        fixtures.files.map(file =>
+          path.join(fixtures.uploadDirectory, file.name)
+        ),
+        fixtures.uploadDirectory
+      )
+
+      // Verify CreateArtifact was called with application/zip MIME type
+      expect(createArtifactSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          mimeType: expect.objectContaining({value: 'application/zip'})
+        })
+      )
+    })
+
+    it('should use the file basename as artifact name when skipArchive is true', async () => {
+      jest
+        .spyOn(uploadZipSpecification, 'getUploadZipSpecification')
+        .mockRestore()
+
+      const singleFile = path.join(fixtures.uploadDirectory, 'file1.txt')
+
+      const createArtifactSpy = jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'CreateArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            signedUploadUrl: 'https://signed-upload-url.local'
+          })
+        )
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'FinalizeArtifact')
+        .mockReturnValue(
+          Promise.resolve({
+            ok: true,
+            artifactId: '1'
+          })
+        )
+
+      uploadStreamMock.mockImplementation(
+        async (
+          stream: NodeJS.ReadableStream,
+          bufferSize?: number,
+          maxConcurrency?: number,
+          options?: BlockBlobUploadStreamOptions
+        ) => {
+          const {onProgress} = options || {}
+          onProgress?.({loadedBytes: 0})
+          return new Promise((resolve, reject) => {
+            stream.on('data', chunk => {
+              onProgress?.({loadedBytes: chunk.length})
+            })
+            stream.on('end', () => {
+              resolve({})
+            })
+            stream.on('error', err => {
+              reject(err)
+            })
+          })
+        }
+      )
+
+      await uploadArtifact(
+        'original-name',
+        [singleFile],
+        fixtures.uploadDirectory,
+        {skipArchive: true}
+      )
+
+      // Verify CreateArtifact was called with the file basename, not the original name
+      expect(createArtifactSpy).toHaveBeenCalledWith(
+        expect.objectContaining({
+          name: 'file1.txt'
+        })
+      )
+    })
+  })
 })
@@ -4,8 +4,8 @@ import {promises as fs} from 'fs'
 import {
  getUploadZipSpecification,
  validateRootDirectory
-} from '../src/internal/upload/upload-zip-specification'
-import {noopLogs} from './common'
+} from '../src/internal/upload/upload-zip-specification.js'
+import {noopLogs} from './common.js'

 const root = path.join(__dirname, '_temp', 'upload-specification')
 const goodItem1Path = path.join(
@@ -1,6 +1,6 @@
-import * as config from '../src/internal/shared/config'
-import * as util from '../src/internal/shared/util'
-import {maskSigUrl, maskSecretUrls} from '../src/internal/shared/util'
+import * as config from '../src/internal/shared/config.js'
+import * as util from '../src/internal/shared/util.js'
+import {maskSigUrl, maskSecretUrls} from '../src/internal/shared/util.js'
 import {setSecret, debug} from '@actions/core'

 export const testRuntimeToken =
@@ -1,6 +1,6 @@
 {
  "name": "@actions/artifact",
-  "version": "4.0.0",
+  "version": "6.2.1",
  "preview": true,
  "description": "Actions artifact lib",
  "keywords": [
@@ -10,8 +10,15 @@
  ],
  "homepage": "https://github.com/actions/toolkit/tree/main/packages/artifact",
  "license": "MIT",
+  "type": "module",
  "main": "lib/artifact.js",
  "types": "lib/artifact.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/artifact.d.ts",
+      "import": "./lib/artifact.js"
+    }
+  },
  "directories": {
    "lib": "lib",
    "test": "__tests__"
@@ -32,7 +39,7 @@
    "audit-moderate": "npm install && npm audit --json --audit-level=moderate > audit.json",
    "test": "cd ../../ && npm run test ./packages/artifact",
    "bootstrap": "cd ../../ && npm run bootstrap",
-    "tsc-run": "tsc",
+    "tsc-run": "tsc && cp src/internal/shared/package-version.cjs lib/internal/shared/",
    "tsc": "npm run bootstrap && npm run tsc-run",
    "gen:docs": "typedoc --plugin typedoc-plugin-markdown --out docs/generated src/artifact.ts --githubPages false --readme none"
  },
@@ -40,27 +47,27 @@
    "url": "https://github.com/actions/toolkit/issues"
  },
  "dependencies": {
-    "@actions/core": "^1.10.0",
-    "@actions/github": "^6.0.1",
-    "@actions/http-client": "^2.1.0",
-    "@azure/core-http": "^3.0.5",
-    "@azure/storage-blob": "^12.15.0",
-    "@octokit/core": "^5.2.1",
-    "@octokit/plugin-request-log": "^1.0.4",
-    "@octokit/plugin-retry": "^3.0.9",
-    "@octokit/request": "^8.4.1",
-    "@octokit/request-error": "^5.1.1",
+    "@actions/core": "^3.0.0",
+    "@actions/github": "^9.0.0",
+    "@actions/http-client": "^4.0.0",
+    "@azure/storage-blob": "^12.30.0",
+    "@octokit/core": "^7.0.6",
+    "@octokit/plugin-request-log": "^6.0.0",
+    "@octokit/plugin-retry": "^8.0.0",
+    "@octokit/request": "^10.0.7",
+    "@octokit/request-error": "^7.1.0",
    "@protobuf-ts/plugin": "^2.2.3-alpha.1",
+    "@protobuf-ts/runtime": "^2.9.4",
    "archiver": "^7.0.1",
-    "jwt-decode": "^3.1.2",
+    "jwt-decode": "^4.0.0",
    "unzip-stream": "^0.3.1"
  },
  "devDependencies": {
-    "@types/archiver": "^5.3.2",
+    "@types/archiver": "^7.0.0",
    "@types/unzip-stream": "^0.3.4",
-    "typedoc": "^0.28.13",
-    "typedoc-plugin-markdown": "^3.17.1",
-    "typescript": "^5.2.2"
+    "typedoc": "^0.28.16",
+    "typedoc-plugin-markdown": "^4.9.0",
+    "typescript": "^5.9.3"
  },
  "overrides": {
    "uri-js": "npm:uri-js-replace@^1.0.1",
@@ -1,8 +1,8 @@
-import {ArtifactClient, DefaultArtifactClient} from './internal/client'
+import {ArtifactClient, DefaultArtifactClient} from './internal/client.js'

-export * from './internal/shared/interfaces'
-export * from './internal/shared/errors'
-export * from './internal/client'
+export * from './internal/shared/interfaces.js'
+export * from './internal/shared/errors.js'
+export * from './internal/client.js'

 const client: ArtifactClient = new DefaultArtifactClient()
 export default client
@@ -1,4 +1,4 @@
-export * from './google/protobuf/timestamp'
-export * from './google/protobuf/wrappers'
-export * from './results/api/v1/artifact'
-export * from './results/api/v1/artifact.twirp-client'
+export * from './google/protobuf/timestamp.js'
+export * from './google/protobuf/wrappers.js'
+export * from './results/api/v1/artifact.js'
+export * from './results/api/v1/artifact.twirp-client.js'
@@ -12,69 +12,9 @@ import type { PartialMessage } from "@protobuf-ts/runtime";
 import { reflectionMergePartial } from "@protobuf-ts/runtime";
 import { MESSAGE_TYPE } from "@protobuf-ts/runtime";
 import { MessageType } from "@protobuf-ts/runtime";
-import { Int64Value } from "../../../google/protobuf/wrappers";
-import { StringValue } from "../../../google/protobuf/wrappers";
-import { Timestamp } from "../../../google/protobuf/timestamp";
-/**
- * @generated from protobuf message github.actions.results.api.v1.MigrateArtifactRequest
- */
-export interface MigrateArtifactRequest {
-    /**
-     * @generated from protobuf field: string workflow_run_backend_id = 1;
-     */
-    workflowRunBackendId: string;
-    /**
-     * @generated from protobuf field: string name = 2;
-     */
-    name: string;
-    /**
-     * @generated from protobuf field: google.protobuf.Timestamp expires_at = 3;
-     */
-    expiresAt?: Timestamp;
-}
-/**
- * @generated from protobuf message github.actions.results.api.v1.MigrateArtifactResponse
- */
-export interface MigrateArtifactResponse {
-    /**
-     * @generated from protobuf field: bool ok = 1;
-     */
-    ok: boolean;
-    /**
-     * @generated from protobuf field: string signed_upload_url = 2;
-     */
-    signedUploadUrl: string;
-}
-/**
- * @generated from protobuf message github.actions.results.api.v1.FinalizeMigratedArtifactRequest
- */
-export interface FinalizeMigratedArtifactRequest {
-    /**
-     * @generated from protobuf field: string workflow_run_backend_id = 1;
-     */
-    workflowRunBackendId: string;
-    /**
-     * @generated from protobuf field: string name = 2;
-     */
-    name: string;
-    /**
-     * @generated from protobuf field: int64 size = 3;
-     */
-    size: string;
-}
-/**
- * @generated from protobuf message github.actions.results.api.v1.FinalizeMigratedArtifactResponse
- */
-export interface FinalizeMigratedArtifactResponse {
-    /**
-     * @generated from protobuf field: bool ok = 1;
-     */
-    ok: boolean;
-    /**
-     * @generated from protobuf field: int64 artifact_id = 2;
-     */
-    artifactId: string;
-}
+import { Int64Value } from "../../../google/protobuf/wrappers.js";
+import { StringValue } from "../../../google/protobuf/wrappers.js";
+import { Timestamp } from "../../../google/protobuf/timestamp.js";
 /**
 * @generated from protobuf message github.actions.results.api.v1.CreateArtifactRequest
 */
@@ -99,6 +39,10 @@ export interface CreateArtifactRequest {
     * @generated from protobuf field: int32 version = 5;
     */
    version: number;
+    /**
+     * @generated from protobuf field: google.protobuf.StringValue mime_type = 6;
+     */
+    mimeType?: StringValue; // optional
 }
 /**
 * @generated from protobuf message github.actions.results.api.v1.CreateArtifactResponse
@@ -293,236 +237,6 @@ export interface DeleteArtifactResponse {
    artifactId: string;
 }
 // @generated message type with reflection information, may provide speed optimized methods
-class MigrateArtifactRequest$Type extends MessageType<MigrateArtifactRequest> {
-    constructor() {
-        super("github.actions.results.api.v1.MigrateArtifactRequest", [
-            { no: 1, name: "workflow_run_backend_id", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
-            { no: 2, name: "name", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
-            { no: 3, name: "expires_at", kind: "message", T: () => Timestamp }
-        ]);
-    }
-    create(value?: PartialMessage<MigrateArtifactRequest>): MigrateArtifactRequest {
-        const message = { workflowRunBackendId: "", name: "" };
-        globalThis.Object.defineProperty(message, MESSAGE_TYPE, { enumerable: false, value: this });
-        if (value !== undefined)
-            reflectionMergePartial<MigrateArtifactRequest>(this, message, value);
-        return message;
-    }
-    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: MigrateArtifactRequest): MigrateArtifactRequest {
-        let message = target ?? this.create(), end = reader.pos + length;
-        while (reader.pos < end) {
-            let [fieldNo, wireType] = reader.tag();
-            switch (fieldNo) {
-                case /* string workflow_run_backend_id */ 1:
-                    message.workflowRunBackendId = reader.string();
-                    break;
-                case /* string name */ 2:
-                    message.name = reader.string();
-                    break;
-                case /* google.protobuf.Timestamp expires_at */ 3:
-                    message.expiresAt = Timestamp.internalBinaryRead(reader, reader.uint32(), options, message.expiresAt);
-                    break;
-                default:
-                    let u = options.readUnknownField;
-                    if (u === "throw")
-                        throw new globalThis.Error(`Unknown field ${fieldNo} (wire type ${wireType}) for ${this.typeName}`);
-                    let d = reader.skip(wireType);
-                    if (u !== false)
-                        (u === true ? UnknownFieldHandler.onRead : u)(this.typeName, message, fieldNo, wireType, d);
-            }
-        }
-        return message;
-    }
-    internalBinaryWrite(message: MigrateArtifactRequest, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter {
-        /* string workflow_run_backend_id = 1; */
-        if (message.workflowRunBackendId !== "")
-            writer.tag(1, WireType.LengthDelimited).string(message.workflowRunBackendId);
-        /* string name = 2; */
-        if (message.name !== "")
-            writer.tag(2, WireType.LengthDelimited).string(message.name);
-        /* google.protobuf.Timestamp expires_at = 3; */
-        if (message.expiresAt)
-            Timestamp.internalBinaryWrite(message.expiresAt, writer.tag(3, WireType.LengthDelimited).fork(), options).join();
-        let u = options.writeUnknownFields;
-        if (u !== false)
-            (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
-        return writer;
-    }
-}
-/**
- * @generated MessageType for protobuf message github.actions.results.api.v1.MigrateArtifactRequest
- */
-export const MigrateArtifactRequest = new MigrateArtifactRequest$Type();
-// @generated message type with reflection information, may provide speed optimized methods
-class MigrateArtifactResponse$Type extends MessageType<MigrateArtifactResponse> {
-    constructor() {
-        super("github.actions.results.api.v1.MigrateArtifactResponse", [
-            { no: 1, name: "ok", kind: "scalar", T: 8 /*ScalarType.BOOL*/ },
-            { no: 2, name: "signed_upload_url", kind: "scalar", T: 9 /*ScalarType.STRING*/ }
-        ]);
-    }
-    create(value?: PartialMessage<MigrateArtifactResponse>): MigrateArtifactResponse {
-        const message = { ok: false, signedUploadUrl: "" };
-        globalThis.Object.defineProperty(message, MESSAGE_TYPE, { enumerable: false, value: this });
-        if (value !== undefined)
-            reflectionMergePartial<MigrateArtifactResponse>(this, message, value);
-        return message;
-    }
-    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: MigrateArtifactResponse): MigrateArtifactResponse {
-        let message = target ?? this.create(), end = reader.pos + length;
-        while (reader.pos < end) {
-            let [fieldNo, wireType] = reader.tag();
-            switch (fieldNo) {
-                case /* bool ok */ 1:
-                    message.ok = reader.bool();
-                    break;
-                case /* string signed_upload_url */ 2:
-                    message.signedUploadUrl = reader.string();
-                    break;
-                default:
-                    let u = options.readUnknownField;
-                    if (u === "throw")
-                        throw new globalThis.Error(`Unknown field ${fieldNo} (wire type ${wireType}) for ${this.typeName}`);
-                    let d = reader.skip(wireType);
-                    if (u !== false)
-                        (u === true ? UnknownFieldHandler.onRead : u)(this.typeName, message, fieldNo, wireType, d);
-            }
-        }
-        return message;
-    }
-    internalBinaryWrite(message: MigrateArtifactResponse, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter {
-        /* bool ok = 1; */
-        if (message.ok !== false)
-            writer.tag(1, WireType.Varint).bool(message.ok);
-        /* string signed_upload_url = 2; */
-        if (message.signedUploadUrl !== "")
-            writer.tag(2, WireType.LengthDelimited).string(message.signedUploadUrl);
-        let u = options.writeUnknownFields;
-        if (u !== false)
-            (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
-        return writer;
-    }
-}
-/**
- * @generated MessageType for protobuf message github.actions.results.api.v1.MigrateArtifactResponse
- */
-export const MigrateArtifactResponse = new MigrateArtifactResponse$Type();
-// @generated message type with reflection information, may provide speed optimized methods
-class FinalizeMigratedArtifactRequest$Type extends MessageType<FinalizeMigratedArtifactRequest> {
-    constructor() {
-        super("github.actions.results.api.v1.FinalizeMigratedArtifactRequest", [
-            { no: 1, name: "workflow_run_backend_id", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
-            { no: 2, name: "name", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
-            { no: 3, name: "size", kind: "scalar", T: 3 /*ScalarType.INT64*/ }
-        ]);
-    }
-    create(value?: PartialMessage<FinalizeMigratedArtifactRequest>): FinalizeMigratedArtifactRequest {
-        const message = { workflowRunBackendId: "", name: "", size: "0" };
-        globalThis.Object.defineProperty(message, MESSAGE_TYPE, { enumerable: false, value: this });
-        if (value !== undefined)
-            reflectionMergePartial<FinalizeMigratedArtifactRequest>(this, message, value);
-        return message;
-    }
-    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: FinalizeMigratedArtifactRequest): FinalizeMigratedArtifactRequest {
-        let message = target ?? this.create(), end = reader.pos + length;
-        while (reader.pos < end) {
-            let [fieldNo, wireType] = reader.tag();
-            switch (fieldNo) {
-                case /* string workflow_run_backend_id */ 1:
-                    message.workflowRunBackendId = reader.string();
-                    break;
-                case /* string name */ 2:
-                    message.name = reader.string();
-                    break;
-                case /* int64 size */ 3:
-                    message.size = reader.int64().toString();
-                    break;
-                default:
-                    let u = options.readUnknownField;
-                    if (u === "throw")
-                        throw new globalThis.Error(`Unknown field ${fieldNo} (wire type ${wireType}) for ${this.typeName}`);
-                    let d = reader.skip(wireType);
-                    if (u !== false)
-                        (u === true ? UnknownFieldHandler.onRead : u)(this.typeName, message, fieldNo, wireType, d);
-            }
-        }
-        return message;
-    }
-    internalBinaryWrite(message: FinalizeMigratedArtifactRequest, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter {
-        /* string workflow_run_backend_id = 1; */
-        if (message.workflowRunBackendId !== "")
-            writer.tag(1, WireType.LengthDelimited).string(message.workflowRunBackendId);
-        /* string name = 2; */
-        if (message.name !== "")
-            writer.tag(2, WireType.LengthDelimited).string(message.name);
-        /* int64 size = 3; */
-        if (message.size !== "0")
-            writer.tag(3, WireType.Varint).int64(message.size);
-        let u = options.writeUnknownFields;
-        if (u !== false)
-            (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
-        return writer;
-    }
-}
-/**
- * @generated MessageType for protobuf message github.actions.results.api.v1.FinalizeMigratedArtifactRequest
- */
-export const FinalizeMigratedArtifactRequest = new FinalizeMigratedArtifactRequest$Type();
-// @generated message type with reflection information, may provide speed optimized methods
-class FinalizeMigratedArtifactResponse$Type extends MessageType<FinalizeMigratedArtifactResponse> {
-    constructor() {
-        super("github.actions.results.api.v1.FinalizeMigratedArtifactResponse", [
-            { no: 1, name: "ok", kind: "scalar", T: 8 /*ScalarType.BOOL*/ },
-            { no: 2, name: "artifact_id", kind: "scalar", T: 3 /*ScalarType.INT64*/ }
-        ]);
-    }
-    create(value?: PartialMessage<FinalizeMigratedArtifactResponse>): FinalizeMigratedArtifactResponse {
-        const message = { ok: false, artifactId: "0" };
-        globalThis.Object.defineProperty(message, MESSAGE_TYPE, { enumerable: false, value: this });
-        if (value !== undefined)
-            reflectionMergePartial<FinalizeMigratedArtifactResponse>(this, message, value);
-        return message;
-    }
-    internalBinaryRead(reader: IBinaryReader, length: number, options: BinaryReadOptions, target?: FinalizeMigratedArtifactResponse): FinalizeMigratedArtifactResponse {
-        let message = target ?? this.create(), end = reader.pos + length;
-        while (reader.pos < end) {
-            let [fieldNo, wireType] = reader.tag();
-            switch (fieldNo) {
-                case /* bool ok */ 1:
-                    message.ok = reader.bool();
-                    break;
-                case /* int64 artifact_id */ 2:
-                    message.artifactId = reader.int64().toString();
-                    break;
-                default:
-                    let u = options.readUnknownField;
-                    if (u === "throw")
-                        throw new globalThis.Error(`Unknown field ${fieldNo} (wire type ${wireType}) for ${this.typeName}`);
-                    let d = reader.skip(wireType);
-                    if (u !== false)
-                        (u === true ? UnknownFieldHandler.onRead : u)(this.typeName, message, fieldNo, wireType, d);
-            }
-        }
-        return message;
-    }
-    internalBinaryWrite(message: FinalizeMigratedArtifactResponse, writer: IBinaryWriter, options: BinaryWriteOptions): IBinaryWriter {
-        /* bool ok = 1; */
-        if (message.ok !== false)
-            writer.tag(1, WireType.Varint).bool(message.ok);
-        /* int64 artifact_id = 2; */
-        if (message.artifactId !== "0")
-            writer.tag(2, WireType.Varint).int64(message.artifactId);
-        let u = options.writeUnknownFields;
-        if (u !== false)
-            (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
-        return writer;
-    }
-}
-/**
- * @generated MessageType for protobuf message github.actions.results.api.v1.FinalizeMigratedArtifactResponse
- */
-export const FinalizeMigratedArtifactResponse = new FinalizeMigratedArtifactResponse$Type();
-// @generated message type with reflection information, may provide speed optimized methods
 class CreateArtifactRequest$Type extends MessageType<CreateArtifactRequest> {
    constructor() {
        super("github.actions.results.api.v1.CreateArtifactRequest", [
@@ -530,7 +244,8 @@ class CreateArtifactRequest$Type extends MessageType<CreateArtifactRequest> {
            { no: 2, name: "workflow_job_run_backend_id", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
            { no: 3, name: "name", kind: "scalar", T: 9 /*ScalarType.STRING*/ },
            { no: 4, name: "expires_at", kind: "message", T: () => Timestamp },
-            { no: 5, name: "version", kind: "scalar", T: 5 /*ScalarType.INT32*/ }
+            { no: 5, name: "version", kind: "scalar", T: 5 /*ScalarType.INT32*/ },
+            { no: 6, name: "mime_type", kind: "message", T: () => StringValue }
        ]);
    }
    create(value?: PartialMessage<CreateArtifactRequest>): CreateArtifactRequest {
@@ -560,6 +275,9 @@ class CreateArtifactRequest$Type extends MessageType<CreateArtifactRequest> {
                case /* int32 version */ 5:
                    message.version = reader.int32();
                    break;
+                case /* google.protobuf.StringValue mime_type */ 6:
+                    message.mimeType = StringValue.internalBinaryRead(reader, reader.uint32(), options, message.mimeType);
+                    break;
                default:
                    let u = options.readUnknownField;
                    if (u === "throw")
@@ -587,6 +305,9 @@ class CreateArtifactRequest$Type extends MessageType<CreateArtifactRequest> {
        /* int32 version = 5; */
        if (message.version !== 0)
            writer.tag(5, WireType.Varint).int32(message.version);
+        /* google.protobuf.StringValue mime_type = 6; */
+        if (message.mimeType)
+            StringValue.internalBinaryWrite(message.mimeType, writer.tag(6, WireType.LengthDelimited).fork(), options).join();
        let u = options.writeUnknownFields;
        if (u !== false)
            (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
@@ -852,7 +573,7 @@ export const ListArtifactsRequest = new ListArtifactsRequest$Type();
 class ListArtifactsResponse$Type extends MessageType<ListArtifactsResponse> {
    constructor() {
        super("github.actions.results.api.v1.ListArtifactsResponse", [
-            { no: 1, name: "artifacts", kind: "message", repeat: 1 /*RepeatType.PACKED*/, T: () => ListArtifactsResponse_MonolithArtifact }
+            { no: 1, name: "artifacts", kind: "message", repeat: 2 /*RepeatType.UNPACKED*/, T: () => ListArtifactsResponse_MonolithArtifact }
        ]);
    }
    create(value?: PartialMessage<ListArtifactsResponse>): ListArtifactsResponse {
@@ -1215,7 +936,5 @@ export const ArtifactService = new ServiceType("github.actions.results.api.v1.Ar
    { name: "FinalizeArtifact", options: {}, I: FinalizeArtifactRequest, O: FinalizeArtifactResponse },
    { name: "ListArtifacts", options: {}, I: ListArtifactsRequest, O: ListArtifactsResponse },
    { name: "GetSignedArtifactURL", options: {}, I: GetSignedArtifactURLRequest, O: GetSignedArtifactURLResponse },
-    { name: "DeleteArtifact", options: {}, I: DeleteArtifactRequest, O: DeleteArtifactResponse },
-    { name: "MigrateArtifact", options: {}, I: MigrateArtifactRequest, O: MigrateArtifactResponse },
-    { name: "FinalizeMigratedArtifact", options: {}, I: FinalizeMigratedArtifactRequest, O: FinalizeMigratedArtifactResponse }
+    { name: "DeleteArtifact", options: {}, I: DeleteArtifactRequest, O: DeleteArtifactResponse }
 ]);
@@ -9,7 +9,7 @@ import {
  GetSignedArtifactURLResponse,
  DeleteArtifactRequest,
  DeleteArtifactResponse,
-} from "./artifact";
+} from "./artifact.js";

 //==================================//
 //          Client Code             //
@@ -229,4 +229,4 @@ export class ArtifactServiceClientProtobuf implements ArtifactServiceClient {
      DeleteArtifactResponse.fromBinary(data as Uint8Array)
    );
  }
-}
+}
@@ -1,5 +1,5 @@
 import {warning} from '@actions/core'
-import {isGhes} from './shared/config'
+import {isGhes} from './shared/config.js'
 import {
  UploadArtifactOptions,
  UploadArtifactResponse,
@@ -10,19 +10,22 @@ import {
  DownloadArtifactResponse,
  FindOptions,
  DeleteArtifactResponse
-} from './shared/interfaces'
-import {uploadArtifact} from './upload/upload-artifact'
+} from './shared/interfaces.js'
+import {uploadArtifact} from './upload/upload-artifact.js'
 import {
  downloadArtifactPublic,
  downloadArtifactInternal
-} from './download/download-artifact'
+} from './download/download-artifact.js'
 import {
  deleteArtifactPublic,
  deleteArtifactInternal
-} from './delete/delete-artifact'
-import {getArtifactPublic, getArtifactInternal} from './find/get-artifact'
-import {listArtifactsPublic, listArtifactsInternal} from './find/list-artifacts'
-import {GHESNotSupportedError} from './shared/errors'
+} from './delete/delete-artifact.js'
+import {getArtifactPublic, getArtifactInternal} from './find/get-artifact.js'
+import {
+  listArtifactsPublic,
+  listArtifactsInternal
+} from './find/list-artifacts.js'
+import {GHESNotSupportedError} from './shared/errors.js'

 /**
 * Generic interface for the artifact client.
@@ -1,21 +1,21 @@
 import {info, debug} from '@actions/core'
 import {getOctokit} from '@actions/github'
-import {DeleteArtifactResponse} from '../shared/interfaces'
-import {getUserAgentString} from '../shared/user-agent'
-import {getRetryOptions} from '../find/retry-options'
+import {DeleteArtifactResponse} from '../shared/interfaces.js'
+import {getUserAgentString} from '../shared/user-agent.js'
+import {getRetryOptions} from '../find/retry-options.js'
 import {defaults as defaultGitHubOptions} from '@actions/github/lib/utils'
 import {requestLog} from '@octokit/plugin-request-log'
 import {retry} from '@octokit/plugin-retry'
-import {OctokitOptions} from '@octokit/core/dist-types/types'
-import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client'
-import {getBackendIdsFromToken} from '../shared/util'
+import type {OctokitOptions} from '@octokit/core/types'
+import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client.js'
+import {getBackendIdsFromToken} from '../shared/util.js'
 import {
  DeleteArtifactRequest,
  ListArtifactsRequest,
  StringValue
-} from '../../generated'
-import {getArtifactPublic} from '../find/get-artifact'
-import {ArtifactNotFoundError, InvalidResponseError} from '../shared/errors'
+} from '../../generated/index.js'
+import {getArtifactPublic} from '../find/get-artifact.js'
+import {ArtifactNotFoundError, InvalidResponseError} from '../shared/errors.js'

 export async function deleteArtifactPublic(
  artifactName: string,
@@ -1,6 +1,8 @@
 import fs from 'fs/promises'
+import * as fsSync from 'fs'
 import * as crypto from 'crypto'
 import * as stream from 'stream'
+import * as path from 'path'

 import * as github from '@actions/github'
 import * as core from '@actions/core'
@@ -10,17 +12,17 @@ import {
  DownloadArtifactOptions,
  DownloadArtifactResponse,
  StreamExtractResponse
-} from '../shared/interfaces'
-import {getUserAgentString} from '../shared/user-agent'
-import {getGitHubWorkspaceDir} from '../shared/config'
-import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client'
+} from '../shared/interfaces.js'
+import {getUserAgentString} from '../shared/user-agent.js'
+import {getGitHubWorkspaceDir} from '../shared/config.js'
+import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client.js'
 import {
  GetSignedArtifactURLRequest,
  Int64Value,
  ListArtifactsRequest
-} from '../../generated'
-import {getBackendIdsFromToken} from '../shared/util'
-import {ArtifactNotFoundError} from '../shared/errors'
+} from '../../generated/index.js'
+import {getBackendIdsFromToken} from '../shared/util.js'
+import {ArtifactNotFoundError} from '../shared/errors.js'

 const scrubQueryParameters = (url: string): string => {
  const parsed = new URL(url)
@@ -43,12 +45,13 @@ async function exists(path: string): Promise<boolean> {

 async function streamExtract(
  url: string,
-  directory: string
+  directory: string,
+  skipDecompress?: boolean
 ): Promise<StreamExtractResponse> {
  let retryCount = 0
  while (retryCount < 5) {
    try {
-      return await streamExtractExternal(url, directory)
+      return await streamExtractExternal(url, directory, {skipDecompress})
    } catch (error) {
      retryCount++
      core.debug(
@@ -65,8 +68,9 @@ async function streamExtract(
 export async function streamExtractExternal(
  url: string,
  directory: string,
-  opts: {timeout: number} = {timeout: 30 * 1000}
+  opts: {timeout?: number; skipDecompress?: boolean} = {}
 ): Promise<StreamExtractResponse> {
+  const {timeout = 30 * 1000, skipDecompress = false} = opts
  const client = new httpClient.HttpClient(getUserAgentString())
  const response = await client.get(url)
  if (response.message.statusCode !== 200) {
@@ -75,49 +79,97 @@ export async function streamExtractExternal(
    )
  }

+  const contentType = response.message.headers['content-type'] || ''
+  const mimeType = contentType.split(';', 1)[0].trim().toLowerCase()
+
+  // Check if the URL path ends with .zip (ignoring query parameters)
+  const urlPath = new URL(url).pathname.toLowerCase()
+  const urlEndsWithZip = urlPath.endsWith('.zip')
+
+  const isZip =
+    mimeType === 'application/zip' ||
+    mimeType === 'application/x-zip-compressed' ||
+    mimeType === 'application/zip-compressed' ||
+    urlEndsWithZip
+
+  // Extract filename from Content-Disposition header
+  // Prefer filename* (RFC 5987) which supports UTF-8 encoded filenames,
+  // fall back to filename which may contain ASCII-only replacements
+  const contentDisposition =
+    response.message.headers['content-disposition'] || ''
+  let fileName = 'artifact'
+  const filenameStar = contentDisposition.match(
+    /filename\*\s*=\s*UTF-8''([^;\r\n]*)/i
+  )
+  const filenamePlain = contentDisposition.match(
+    /(?<!\*)filename\s*=\s*['"]?([^;\r\n"']*)['"]?/i
+  )
+  const rawName = filenameStar?.[1] || filenamePlain?.[1]
+  if (rawName) {
+    // Sanitize fileName to prevent path traversal attacks
+    // Use path.basename to extract only the filename component
+    fileName = path.basename(decodeURIComponent(rawName.trim()))
+  }
+
+  core.debug(
+    `Content-Type: ${contentType}, mimeType: ${mimeType}, urlEndsWithZip: ${urlEndsWithZip}, isZip: ${isZip}, skipDecompress: ${skipDecompress}`
+  )
+  core.debug(
+    `Content-Disposition: ${contentDisposition}, fileName: ${fileName}`
+  )
+
  let sha256Digest: string | undefined = undefined

  return new Promise((resolve, reject) => {
    const timerFn = (): void => {
      const timeoutError = new Error(
-        `Blob storage chunk did not respond in ${opts.timeout}ms`
+        `Blob storage chunk did not respond in ${timeout}ms`
      )
      response.message.destroy(timeoutError)
      reject(timeoutError)
    }
-    const timer = setTimeout(timerFn, opts.timeout)
+    const timer = setTimeout(timerFn, timeout)
+
+    const onError = (error: Error): void => {
+      core.debug(`response.message: Artifact download failed: ${error.message}`)
+      clearTimeout(timer)
+      reject(error)
+    }

    const hashStream = crypto.createHash('sha256').setEncoding('hex')
    const passThrough = new stream.PassThrough()
-
-    response.message.pipe(passThrough)
-    passThrough.pipe(hashStream)
-    const extractStream = passThrough
-
-    extractStream
      .on('data', () => {
        timer.refresh()
      })
-      .on('error', (error: Error) => {
-        core.debug(
-          `response.message: Artifact download failed: ${error.message}`
-        )
-        clearTimeout(timer)
-        reject(error)
-      })
-      .pipe(unzip.Extract({path: directory}))
-      .on('close', () => {
-        clearTimeout(timer)
-        if (hashStream) {
-          hashStream.end()
-          sha256Digest = hashStream.read() as string
-          core.info(`SHA256 digest of downloaded artifact is ${sha256Digest}`)
-        }
-        resolve({sha256Digest: `sha256:${sha256Digest}`})
-      })
-      .on('error', (error: Error) => {
-        reject(error)
-      })
+      .on('error', onError)
+
+    response.message.pipe(passThrough)
+    passThrough.pipe(hashStream)
+
+    const onClose = (): void => {
+      clearTimeout(timer)
+      if (hashStream) {
+        hashStream.end()
+        sha256Digest = hashStream.read() as string
+        core.info(`SHA256 digest of downloaded artifact is ${sha256Digest}`)
+      }
+      resolve({sha256Digest: `sha256:${sha256Digest}`})
+    }
+
+    if (isZip && !skipDecompress) {
+      // Extract zip file
+      passThrough
+        .pipe(unzip.Extract({path: directory}))
+        .on('close', onClose)
+        .on('error', onError)
+    } else {
+      // Save raw file without extracting
+      const filePath = path.join(directory, fileName)
+      const writeStream = fsSync.createWriteStream(filePath)
+
+      core.info(`Downloading raw file (non-zip) to: ${filePath}`)
+      passThrough.pipe(writeStream).on('close', onClose).on('error', onError)
+    }
  })
 }

@@ -163,7 +215,11 @@ export async function downloadArtifactPublic(

  try {
    core.info(`Starting download of artifact to: ${downloadPath}`)
-    const extractResponse = await streamExtract(location, downloadPath)
+    const extractResponse = await streamExtract(
+      location,
+      downloadPath,
+      options?.skipDecompress
+    )
    core.info(`Artifact download completed successfully.`)
    if (options?.expectedHash) {
      if (options?.expectedHash !== extractResponse.sha256Digest) {
@@ -224,7 +280,11 @@ export async function downloadArtifactInternal(

  try {
    core.info(`Starting download of artifact to: ${downloadPath}`)
-    const extractResponse = await streamExtract(signedUrl, downloadPath)
+    const extractResponse = await streamExtract(
+      signedUrl,
+      downloadPath,
+      options?.skipDecompress
+    )
    core.info(`Artifact download completed successfully.`)
    if (options?.expectedHash) {
      if (options?.expectedHash !== extractResponse.sha256Digest) {
@@ -1,16 +1,20 @@
 import {getOctokit} from '@actions/github'
 import {retry} from '@octokit/plugin-retry'
 import * as core from '@actions/core'
-import {OctokitOptions} from '@octokit/core/dist-types/types'
+import type {OctokitOptions} from '@octokit/core/types'
 import {defaults as defaultGitHubOptions} from '@actions/github/lib/utils'
-import {getRetryOptions} from './retry-options'
+import {getRetryOptions} from './retry-options.js'
 import {requestLog} from '@octokit/plugin-request-log'
-import {GetArtifactResponse} from '../shared/interfaces'
-import {getBackendIdsFromToken} from '../shared/util'
-import {getUserAgentString} from '../shared/user-agent'
-import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client'
-import {ListArtifactsRequest, StringValue, Timestamp} from '../../generated'
-import {ArtifactNotFoundError, InvalidResponseError} from '../shared/errors'
+import {GetArtifactResponse} from '../shared/interfaces.js'
+import {getBackendIdsFromToken} from '../shared/util.js'
+import {getUserAgentString} from '../shared/user-agent.js'
+import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client.js'
+import {
+  ListArtifactsRequest,
+  StringValue,
+  Timestamp
+} from '../../generated/index.js'
+import {ArtifactNotFoundError, InvalidResponseError} from '../shared/errors.js'

 export async function getArtifactPublic(
  artifactName: string,
@@ -1,16 +1,16 @@
 import {info, warning, debug} from '@actions/core'
 import {getOctokit} from '@actions/github'
-import {ListArtifactsResponse, Artifact} from '../shared/interfaces'
-import {getUserAgentString} from '../shared/user-agent'
-import {getRetryOptions} from './retry-options'
+import {ListArtifactsResponse, Artifact} from '../shared/interfaces.js'
+import {getUserAgentString} from '../shared/user-agent.js'
+import {getRetryOptions} from './retry-options.js'
 import {defaults as defaultGitHubOptions} from '@actions/github/lib/utils'
 import {requestLog} from '@octokit/plugin-request-log'
 import {retry} from '@octokit/plugin-retry'
-import {OctokitOptions} from '@octokit/core/dist-types/types'
-import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client'
-import {getBackendIdsFromToken} from '../shared/util'
-import {getMaxArtifactListCount} from '../shared/config'
-import {ListArtifactsRequest, Timestamp} from '../../generated'
+import type {OctokitOptions} from '@octokit/core/types'
+import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client.js'
+import {getBackendIdsFromToken} from '../shared/util.js'
+import {getMaxArtifactListCount} from '../shared/config.js'
+import {ListArtifactsRequest, Timestamp} from '../../generated/index.js'

 const maximumArtifactCount = getMaxArtifactListCount()
 const paginationCount = 100
@@ -1,5 +1,5 @@
 import * as core from '@actions/core'
-import {OctokitOptions} from '@octokit/core/dist-types/types'
+import type {OctokitOptions} from '@octokit/core/types'
 import {RequestRequestOptions} from '@octokit/types'

 export type RetryOptions = {
@@ -1,11 +1,11 @@
 import {HttpClient, HttpClientResponse, HttpCodes} from '@actions/http-client'
 import {BearerCredentialHandler} from '@actions/http-client/lib/auth'
 import {info, debug} from '@actions/core'
-import {ArtifactServiceClientJSON} from '../../generated'
-import {getResultsServiceUrl, getRuntimeToken} from './config'
-import {getUserAgentString} from './user-agent'
-import {NetworkError, UsageError} from './errors'
-import {maskSecretUrls} from './util'
+import {ArtifactServiceClientJSON} from '../../generated/index.js'
+import {getResultsServiceUrl, getRuntimeToken} from './config.js'
+import {getUserAgentString} from './user-agent.js'
+import {NetworkError, UsageError} from './errors.js'
+import {maskSecretUrls} from './util.js'

 // The twirp http client must implement this interface
 interface Rpc {
@@ -60,7 +60,7 @@ export class NetworkError extends Error {

 export class UsageError extends Error {
  constructor() {
-    const message = `Artifact storage quota has been hit. Unable to upload any new artifacts. Usage is recalculated every 6-12 hours.\nMore info on storage limits: https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#calculating-minute-and-storage-spending`
+    const message = `Artifact storage quota has been hit. Unable to upload any new artifacts.\nMore info on storage limits: https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#calculating-minute-and-storage-spending`
    super(message)
    this.name = 'UsageError'
  }
@@ -50,6 +50,13 @@ export interface UploadArtifactOptions {
   * For large files that are not easily compressed, a value of 0 is recommended for significantly faster uploads.
   */
  compressionLevel?: number
+  /**
+   * If true, the artifact will be uploaded without being archived (zipped).
+   * This is only supported when uploading a single file.
+   * When using this option, the artifact will not be compressed.
+   * When using this option, the name parameter passed to the upload is ignored. Instead, the name of the file is used as the name of the artifact.
+   */
+  skipArchive?: boolean
 }

 /**
@@ -113,6 +120,12 @@ export interface DownloadArtifactOptions {
   * matches the expected hash.
   */
  expectedHash?: string
+
+  /**
+   * If true, the downloaded artifact will not be automatically extracted/decompressed.
+   * The artifact will be saved as-is to the destination path.
+   */
+  skipDecompress?: boolean
 }

 export interface StreamExtractResponse {
@@ -0,0 +1,7 @@
+// This file exists as a CommonJS module to read the version from package.json.
+// In an ESM package, using `require()` directly in .ts files requires disabling
+// ESLint rules and doesn't work reliably across all Node.js versions.
+// By keeping this as a .cjs file, we can use require() naturally and export
+// the version for the ESM modules to import.
+const packageJson = require('../../../package.json')
+module.exports = { version: packageJson.version }
@@ -1,9 +1,8 @@
-// eslint-disable-next-line @typescript-eslint/no-var-requires, @typescript-eslint/no-require-imports
-const packageJson = require('../../../package.json')
+import {version} from './package-version.cjs'

 /**
 * Ensure that this User Agent String is used in all HTTP calls so that we can monitor telemetry between different versions of this package
 */
 export function getUserAgentString(): string {
-  return `@actions/artifact-${packageJson.version}`
+  return `@actions/artifact-${version}`
 }
@@ -1,6 +1,6 @@
 import * as core from '@actions/core'
-import {getRuntimeToken} from './config'
-import jwt_decode from 'jwt-decode'
+import {getRuntimeToken} from './config.js'
+import {jwtDecode} from 'jwt-decode'
 import {debug, setSecret} from '@actions/core'

 export interface BackendIds {
@@ -20,7 +20,7 @@ const InvalidJwtError = new Error(
 // workflow run and workflow job run backend ids
 export function getBackendIdsFromToken(): BackendIds {
  const token = getRuntimeToken()
-  const decoded = jwt_decode<ActionsToken>(token)
+  const decoded = jwtDecode<ActionsToken>(token)
  if (!decoded.scp) {
    throw InvalidJwtError
  }
@@ -1,15 +1,15 @@
 import {BlobClient, BlockBlobUploadStreamOptions} from '@azure/storage-blob'
 import {TransferProgressEvent} from '@azure/core-http-compat'
-import {ZipUploadStream} from './zip'
+import {WaterMarkedUploadStream} from './stream.js'
 import {
  getUploadChunkSize,
  getConcurrency,
  getUploadChunkTimeout
-} from '../shared/config'
+} from '../shared/config.js'
 import * as core from '@actions/core'
 import * as crypto from 'crypto'
 import * as stream from 'stream'
-import {NetworkError} from '../shared/errors'
+import {NetworkError} from '../shared/errors.js'

 export interface BlobUploadResponse {
  /**
@@ -23,9 +23,10 @@ export interface BlobUploadResponse {
  sha256Hash?: string
 }

-export async function uploadZipToBlobStorage(
+export async function uploadToBlobStorage(
  authenticatedUploadURL: string,
-  zipUploadStream: ZipUploadStream
+  uploadStream: WaterMarkedUploadStream,
+  contentType: string
 ): Promise<BlobUploadResponse> {
  let uploadByteCount = 0
  let lastProgressTime = Date.now()
@@ -51,7 +52,7 @@ export async function uploadZipToBlobStorage(
  const blockBlobClient = blobClient.getBlockBlobClient()

  core.debug(
-    `Uploading artifact zip to blob storage with maxConcurrency: ${maxConcurrency}, bufferSize: ${bufferSize}`
+    `Uploading artifact to blob storage with maxConcurrency: ${maxConcurrency}, bufferSize: ${bufferSize}, contentType: ${contentType}`
  )

  const uploadCallback = (progress: TransferProgressEvent): void => {
@@ -61,24 +62,24 @@ export async function uploadZipToBlobStorage(
  }

  const options: BlockBlobUploadStreamOptions = {
-    blobHTTPHeaders: {blobContentType: 'zip'},
+    blobHTTPHeaders: {blobContentType: contentType},
    onProgress: uploadCallback,
    abortSignal: abortController.signal
  }

  let sha256Hash: string | undefined = undefined
-  const uploadStream = new stream.PassThrough()
+  const blobUploadStream = new stream.PassThrough()
  const hashStream = crypto.createHash('sha256')

-  zipUploadStream.pipe(uploadStream) // This stream is used for the upload
-  zipUploadStream.pipe(hashStream).setEncoding('hex') // This stream is used to compute a hash of the zip content that gets used. Integrity check
+  uploadStream.pipe(blobUploadStream) // This stream is used for the upload
+  uploadStream.pipe(hashStream).setEncoding('hex') // This stream is used to compute a hash of the content for integrity check

  core.info('Beginning upload of artifact content to blob storage')

  try {
    await Promise.race([
      blockBlobClient.uploadStream(
-        uploadStream,
+        blobUploadStream,
        bufferSize,
        maxConcurrency,
        options
@@ -98,7 +99,7 @@ export async function uploadZipToBlobStorage(

  hashStream.end()
  sha256Hash = hashStream.read() as string
-  core.info(`SHA256 digest of uploaded artifact zip is ${sha256Hash}`)
+  core.info(`SHA256 digest of uploaded artifact is ${sha256Hash}`)

  if (uploadByteCount === 0) {
    core.warning(
@@ -1,4 +1,4 @@
-import {Timestamp} from '../../generated'
+import {Timestamp} from '../../generated/index.js'
 import * as core from '@actions/core'

 export function getExpiration(retentionDays?: number): Timestamp | undefined {
@@ -0,0 +1,53 @@
+import * as stream from 'stream'
+import * as fs from 'fs'
+import {realpath} from 'fs/promises'
+import * as core from '@actions/core'
+import {getUploadChunkSize} from '../shared/config.js'
+
+// Custom stream transformer so we can set the highWaterMark property
+// See https://github.com/nodejs/node/issues/8855
+export class WaterMarkedUploadStream extends stream.Transform {
+  constructor(bufferSize: number) {
+    super({
+      highWaterMark: bufferSize
+    })
+  }
+
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  _transform(chunk: any, enc: any, cb: any): void {
+    cb(null, chunk)
+  }
+}
+
+export async function createRawFileUploadStream(
+  filePath: string
+): Promise<WaterMarkedUploadStream> {
+  core.debug(`Creating raw file upload stream for: ${filePath}`)
+
+  const bufferSize = getUploadChunkSize()
+  const uploadStream = new WaterMarkedUploadStream(bufferSize)
+
+  // Check if symlink and resolve the source path
+  let sourcePath = filePath
+  const stats = await fs.promises.lstat(filePath)
+  if (stats.isSymbolicLink()) {
+    sourcePath = await realpath(filePath)
+  }
+
+  // Create a read stream from the file and pipe it to the upload stream
+  const fileStream = fs.createReadStream(sourcePath, {
+    highWaterMark: bufferSize
+  })
+
+  fileStream.on('error', error => {
+    core.error('An error has occurred while reading the file for upload')
+    core.error(String(error))
+    uploadStream.destroy(
+      new Error('An error has occurred during file read for the artifact')
+    )
+  })
+
+  fileStream.pipe(uploadStream)
+
+  return uploadStream
+}
@@ -0,0 +1,82 @@
+import * as path from 'path'
+
+/**
+ * Maps file extensions to MIME types
+ */
+const mimeTypes: Record<string, string> = {
+  // Text
+  '.txt': 'text/plain',
+  '.html': 'text/html',
+  '.htm': 'text/html',
+  '.css': 'text/css',
+  '.csv': 'text/csv',
+  '.xml': 'text/xml',
+  '.md': 'text/markdown',
+
+  // JavaScript/JSON
+  '.js': 'application/javascript',
+  '.mjs': 'application/javascript',
+  '.json': 'application/json',
+
+  // Images
+  '.png': 'image/png',
+  '.jpg': 'image/jpeg',
+  '.jpeg': 'image/jpeg',
+  '.gif': 'image/gif',
+  '.svg': 'image/svg+xml',
+  '.webp': 'image/webp',
+  '.ico': 'image/x-icon',
+  '.bmp': 'image/bmp',
+  '.tiff': 'image/tiff',
+  '.tif': 'image/tiff',
+
+  // Audio
+  '.mp3': 'audio/mpeg',
+  '.wav': 'audio/wav',
+  '.ogg': 'audio/ogg',
+  '.flac': 'audio/flac',
+
+  // Video
+  '.mp4': 'video/mp4',
+  '.webm': 'video/webm',
+  '.avi': 'video/x-msvideo',
+  '.mov': 'video/quicktime',
+
+  // Documents
+  '.pdf': 'application/pdf',
+  '.doc': 'application/msword',
+  '.docx':
+    'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+  '.xls': 'application/vnd.ms-excel',
+  '.xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+  '.ppt': 'application/vnd.ms-powerpoint',
+  '.pptx':
+    'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+
+  // Archives
+  '.zip': 'application/zip',
+  '.tar': 'application/x-tar',
+  '.gz': 'application/gzip',
+  '.rar': 'application/vnd.rar',
+  '.7z': 'application/x-7z-compressed',
+
+  // Code/Data
+  '.wasm': 'application/wasm',
+  '.yaml': 'application/x-yaml',
+  '.yml': 'application/x-yaml',
+
+  // Fonts
+  '.woff': 'font/woff',
+  '.woff2': 'font/woff2',
+  '.ttf': 'font/ttf',
+  '.otf': 'font/otf',
+  '.eot': 'application/vnd.ms-fontobject'
+}
+
+/**
+ * Gets the MIME type for a file based on its extension
+ */
+export function getMimeType(filePath: string): string {
+  const ext = path.extname(filePath).toLowerCase()
+  return mimeTypes[ext] || 'application/octet-stream'
+}
@@ -1,25 +1,29 @@
 import * as core from '@actions/core'
+import * as fs from 'fs'
+import * as path from 'path'
 import {
  UploadArtifactOptions,
  UploadArtifactResponse
-} from '../shared/interfaces'
-import {getExpiration} from './retention'
-import {validateArtifactName} from './path-and-artifact-name-validation'
-import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client'
+} from '../shared/interfaces.js'
+import {getExpiration} from './retention.js'
+import {validateArtifactName} from './path-and-artifact-name-validation.js'
+import {internalArtifactTwirpClient} from '../shared/artifact-twirp-client.js'
 import {
  UploadZipSpecification,
  getUploadZipSpecification,
  validateRootDirectory
-} from './upload-zip-specification'
-import {getBackendIdsFromToken} from '../shared/util'
-import {uploadZipToBlobStorage} from './blob-upload'
-import {createZipUploadStream} from './zip'
+} from './upload-zip-specification.js'
+import {getBackendIdsFromToken} from '../shared/util.js'
+import {uploadToBlobStorage} from './blob-upload.js'
+import {createZipUploadStream} from './zip.js'
+import {createRawFileUploadStream, WaterMarkedUploadStream} from './stream.js'
 import {
  CreateArtifactRequest,
  FinalizeArtifactRequest,
  StringValue
-} from '../../generated'
-import {FilesNotFoundError, InvalidResponseError} from '../shared/errors'
+} from '../../generated/index.js'
+import {FilesNotFoundError, InvalidResponseError} from '../shared/errors.js'
+import {getMimeType} from './types.js'

 export async function uploadArtifact(
  name: string,
@@ -27,19 +31,43 @@ export async function uploadArtifact(
  rootDirectory: string,
  options?: UploadArtifactOptions | undefined
 ): Promise<UploadArtifactResponse> {
+  let artifactFileName = `${name}.zip`
+  if (options?.skipArchive) {
+    if (files.length === 0) {
+      throw new FilesNotFoundError([])
+    }
+
+    if (files.length > 1) {
+      throw new Error(
+        'skipArchive option is only supported when uploading a single file'
+      )
+    }
+
+    if (!fs.existsSync(files[0])) {
+      throw new FilesNotFoundError(files)
+    }
+
+    artifactFileName = path.basename(files[0])
+    name = artifactFileName
+  }
+
  validateArtifactName(name)
  validateRootDirectory(rootDirectory)

-  const zipSpecification: UploadZipSpecification[] = getUploadZipSpecification(
-    files,
-    rootDirectory
-  )
-  if (zipSpecification.length === 0) {
-    throw new FilesNotFoundError(
-      zipSpecification.flatMap(s => (s.sourcePath ? [s.sourcePath] : []))
-    )
+  let zipSpecification: UploadZipSpecification[] = []
+
+  if (!options?.skipArchive) {
+    zipSpecification = getUploadZipSpecification(files, rootDirectory)
+
+    if (zipSpecification.length === 0) {
+      throw new FilesNotFoundError(
+        zipSpecification.flatMap(s => (s.sourcePath ? [s.sourcePath] : []))
+      )
+    }
  }

+  const contentType = getMimeType(artifactFileName)
+
  // get the IDs needed for the artifact creation
  const backendIds = getBackendIdsFromToken()

@@ -51,7 +79,8 @@ export async function uploadArtifact(
    workflowRunBackendId: backendIds.workflowRunBackendId,
    workflowJobRunBackendId: backendIds.workflowJobRunBackendId,
    name,
-    version: 4
+    mimeType: StringValue.create({value: contentType}),
+    version: 7
  }

  // if there is a retention period, add it to the request
@@ -68,15 +97,24 @@ export async function uploadArtifact(
    )
  }

-  const zipUploadStream = await createZipUploadStream(
-    zipSpecification,
-    options?.compressionLevel
-  )
+  let stream: WaterMarkedUploadStream

-  // Upload zip to blob storage
-  const uploadResult = await uploadZipToBlobStorage(
+  if (options?.skipArchive) {
+    // Upload raw file without archiving
+    stream = await createRawFileUploadStream(files[0])
+  } else {
+    // Create and upload zip archive
+    stream = await createZipUploadStream(
+      zipSpecification,
+      options?.compressionLevel
+    )
+  }
+
+  core.info(`Uploading artifact: ${artifactFileName}`)
+  const uploadResult = await uploadToBlobStorage(
    createArtifactResp.signedUploadUrl,
-    zipUploadStream
+    stream,
+    contentType
  )

  // finalize the artifact
@@ -105,7 +143,7 @@ export async function uploadArtifact(

  const artifactId = BigInt(finalizeArtifactResp.artifactId)
  core.info(
-    `Artifact ${name}.zip successfully finalized. Artifact ID ${artifactId}`
+    `Artifact ${name} successfully finalized. Artifact ID ${artifactId}`
  )

  return {
@@ -1,7 +1,7 @@
 import * as fs from 'fs'
 import {info} from '@actions/core'
 import {normalize, resolve} from 'path'
-import {validateFilePath} from './path-and-artifact-name-validation'
+import {validateFilePath} from './path-and-artifact-name-validation.js'

 export interface UploadZipSpecification {
  /**
@@ -1,31 +1,16 @@
-import * as stream from 'stream'
 import {realpath} from 'fs/promises'
-import * as archiver from 'archiver'
+import archiver from 'archiver'
 import * as core from '@actions/core'
-import {UploadZipSpecification} from './upload-zip-specification'
-import {getUploadChunkSize} from '../shared/config'
+import {UploadZipSpecification} from './upload-zip-specification.js'
+import {getUploadChunkSize} from '../shared/config.js'
+import {WaterMarkedUploadStream} from './stream.js'

 export const DEFAULT_COMPRESSION_LEVEL = 6

-// Custom stream transformer so we can set the highWaterMark property
-// See https://github.com/nodejs/node/issues/8855
-export class ZipUploadStream extends stream.Transform {
-  constructor(bufferSize: number) {
-    super({
-      highWaterMark: bufferSize
-    })
-  }
-
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  _transform(chunk: any, enc: any, cb: any): void {
-    cb(null, chunk)
-  }
-}
-
 export async function createZipUploadStream(
  uploadSpecification: UploadZipSpecification[],
  compressionLevel: number = DEFAULT_COMPRESSION_LEVEL
-): Promise<ZipUploadStream> {
+): Promise<WaterMarkedUploadStream> {
  core.debug(
    `Creating Artifact archive with compressionLevel: ${compressionLevel}`
  )
@@ -60,7 +45,7 @@ export async function createZipUploadStream(
  }

  const bufferSize = getUploadChunkSize()
-  const zipUploadStream = new ZipUploadStream(bufferSize)
+  const zipUploadStream = new WaterMarkedUploadStream(bufferSize)

  core.debug(
    `Zip write high watermark value ${zipUploadStream.writableHighWaterMark}`
@@ -4,6 +4,8 @@
    "baseUrl": "./",
    "outDir": "./lib",
    "rootDir": "./src",
+    "module": "node16",
+    "moduleResolution": "node16",
    "paths": {
      "@actions/core": [
        "../core"
@@ -1,17 +1,43 @@
 # @actions/attest Releases

-### 2.0.0
+## 3.2.0
+
+- Add custom user-agent for more API calls [#2321](https://github.com/actions/toolkit/pull/2321)
+
+## 3.1.0
+
+- Add support for `ACTIONS_ORCHESTRATION_ID` in user-agent [#2320](https://github.com/actions/toolkit/pull/2320)
+
+## 3.0.0
+
+- **Breaking change**: Package is now ESM-only
+  - CommonJS consumers must use dynamic `import()` instead of `require()`
+- Bump `@actions/core` to `^3.0.0`
+- Bump `@actions/http-client` to `^4.0.0`
+
+## 2.2.1
+
+- Bump `@actions/http-client` to `3.0.2`
+- Bump `undici` to `6.23.0`
+
+## 2.2.0
+
+- Bump @actions/core from 1.11.1 to 2.0.2
+- Bump @actions/github from 6.0.0 to 7.0.0
+- Bump @actions/http-client from 2.2.3 to 3.0.1
+
+## 2.0.0

 - Add support for Node 24 [#2110](https://github.com/actions/toolkit/pull/2110)
 - Bump @sigstore/bundle from 3.0.0 to 3.1.0
 - Bump @sigstore/sign from 3.0.0 to 3.1.0
 - Bump jose from 5.2.3 to 5.10.0

-### 1.6.0
+## 1.6.0

 - Update `buildSLSAProvenancePredicate` to populate `workflow.ref` field from the `ref` claim in the OIDC token [#1969](https://github.com/actions/toolkit/pull/1969)

-### 1.5.0
+## 1.5.0

 - Bump @actions/core from 1.10.1 to 1.11.1 [#1847](https://github.com/actions/toolkit/pull/1847)
 - Bump @sigstore/bundle from 2.3.2 to 3.0.0 [#1846](https://github.com/actions/toolkit/pull/1846)
@@ -19,23 +45,24 @@
 - Support for generating multi-subject attestations [#1864](https://github.com/actions/toolkit/pull/1865)
 - Fix bug in `buildSLSAProvenancePredicate` related to `workflow_ref` OIDC token claims containing the "@" symbol in the tag name [#1863](https://github.com/actions/toolkit/pull/1863)

-### 1.4.2
+## 1.4.2

 - Fix bug in `buildSLSAProvenancePredicate`/`attestProvenance` when generating provenance statement for enterprise account using customized OIDC issuer value [#1823](https://github.com/actions/toolkit/pull/1823)

-### 1.4.1
+## 1.4.1

 - Bump @actions/http-client from 2.2.1 to 2.2.3 [#1805](https://github.com/actions/toolkit/pull/1805)

-### 1.4.0
+## 1.4.0

 - Add new `headers` parameter to the `attest` and `attestProvenance` functions [#1790](https://github.com/actions/toolkit/pull/1790)
 - Update `buildSLSAProvenancePredicate`/`attestProvenance` to automatically derive default OIDC issuer URL from current execution context [#1796](https://github.com/actions/toolkit/pull/1796)
-### 1.3.1
+
+## 1.3.1

 - Fix bug with proxy support when retrieving JWKS for OIDC issuer [#1776](https://github.com/actions/toolkit/pull/1776)

-### 1.3.0
+## 1.3.0

 - Dynamic construction of Sigstore API URLs [#1735](https://github.com/actions/toolkit/pull/1735)
 - Switch to new GH provenance build type [#1745](https://github.com/actions/toolkit/pull/1745)
@@ -43,21 +70,21 @@
 - Bump @sigstore/bundle from 2.3.0 to 2.3.2 [#1738](https://github.com/actions/toolkit/pull/1738)
 - Bump @sigstore/sign from 2.3.0 to 2.3.2 [#1738](https://github.com/actions/toolkit/pull/1738)

-### 1.2.1
+## 1.2.1

 - Retry request on attestation persistence failure [#1725](https://github.com/actions/toolkit/pull/1725)

-### 1.2.0
+## 1.2.0

 - Generate attestations using the v0.3 Sigstore bundle format [#1701](https://github.com/actions/toolkit/pull/1701)
 - Bump @sigstore/bundle from 2.2.0 to 2.3.0 [#1701](https://github.com/actions/toolkit/pull/1701)
 - Bump @sigstore/sign from 2.2.3 to 2.3.0 [#1701](https://github.com/actions/toolkit/pull/1701)
 - Remove dependency on make-fetch-happen [#1714](https://github.com/actions/toolkit/pull/1714)

-### 1.1.0
+## 1.1.0

 - Updates the `attestProvenance` function to retrieve a token from the GitHub OIDC provider and use the token claims to populate the provenance statement [#1693](https://github.com/actions/toolkit/pull/1693)

-### 1.0.0
+## 1.0.0

 - Initial release
@@ -1,18 +1,18 @@
 {
  "name": "@actions/attest",
-  "version": "2.1.0",
+  "version": "3.2.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "@actions/attest",
-      "version": "2.1.0",
+      "version": "3.2.0",
      "license": "MIT",
      "dependencies": {
-        "@actions/core": "^1.11.1",
-        "@actions/github": "^6.0.0",
-        "@actions/http-client": "^2.2.3",
-        "@octokit/plugin-retry": "^6.0.1",
+        "@actions/core": "^3.0.0",
+        "@actions/github": "^9.0.0",
+        "@actions/http-client": "^4.0.0",
+        "@octokit/plugin-retry": "^8.0.3",
        "@sigstore/bundle": "^3.1.0",
        "@sigstore/sign": "^3.1.0",
        "jose": "^5.10.0"
@@ -22,92 +22,78 @@
        "@sigstore/rekor-types": "^3.0.0",
        "@types/jsonwebtoken": "^9.0.6",
        "nock": "^13.5.1",
-        "undici": "^6.20.0"
+        "undici": "^6.23.0"
      }
    },
    "node_modules/@actions/core": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.11.1.tgz",
-      "integrity": "sha512-hXJCSrkwfA46Vd9Z3q4cpEpHB1rL5NG04+/rbqW9d3+CSvtB1tYe8UTpAlixa1vj0m/ULglfEK2UKxMGxCxv5A==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-3.0.0.tgz",
+      "integrity": "sha512-zYt6cz+ivnTmiT/ksRVriMBOiuoUpDCJJlZ5KPl2/FRdvwU3f7MPh9qftvbkXJThragzUZieit2nyHUyw53Seg==",
      "license": "MIT",
      "dependencies": {
-        "@actions/exec": "^1.1.1",
-        "@actions/http-client": "^2.0.1"
+        "@actions/exec": "^3.0.0",
+        "@actions/http-client": "^4.0.0"
      }
    },
    "node_modules/@actions/exec": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.1.1.tgz",
-      "integrity": "sha512-+sCcHHbVdk93a0XT19ECtO/gIXoxvdsgQLzb2fE2/5sIZmWQuluYyjPQtrtTHdU1YzTZ7bAPN4sITq2xi1679w==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-3.0.0.tgz",
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      "license": "MIT",
      "dependencies": {
-        "@actions/io": "^1.0.1"
+        "@actions/io": "^3.0.2"
      }
    },
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-      "resolved": "https://registry.npmjs.org/@actions/github/-/github-6.0.1.tgz",
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-        "@octokit/request": "^8.4.1",
-        "@octokit/request-error": "^5.1.1",
-        "undici": "^5.28.5"
+        "@actions/http-client": "^3.0.2",
+        "@octokit/core": "^7.0.6",
+        "@octokit/plugin-paginate-rest": "^14.0.0",
+        "@octokit/plugin-rest-endpoint-methods": "^17.0.0",
+        "@octokit/request": "^10.0.7",
+        "@octokit/request-error": "^7.1.0",
+        "undici": "^6.23.0"
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-      "engines": {
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+    "node_modules/@actions/github/node_modules/@actions/http-client/node_modules/undici": {
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+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.23.0.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">=18.17"
+      }
+    },
+    "node_modules/@actions/http-client": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-4.0.0.tgz",
+      "integrity": "sha512-QuwPsgVMsD6qaPD57GLZi9sqzAZCtiJT8kVBCDpLtxhL5MydQ4gS+DrejtZZPdIYyB1e95uCK9Luyds7ybHI3g==",
      "license": "MIT",
      "dependencies": {
-        "@fastify/busboy": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=14.0"
+        "tunnel": "^0.0.6",
+        "undici": "^6.23.0"
      }
    },
    "node_modules/@actions/io": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/@actions/io/-/io-1.1.3.tgz",
-      "integrity": "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@actions/io/-/io-3.0.2.tgz",
+      "integrity": "sha512-nRBchcMM+QK1pdjO7/idu86rbJI5YHUKCvKs0KxnSYbVe3F51UfGxuZX4Qy/fWlp6l7gWFwIkrOzN+oUK03kfw==",
      "license": "MIT"
    },
-    "node_modules/@fastify/busboy": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
-      "integrity": "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=14"
-      }
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    "node_modules/@isaacs/cliui": {
      "version": "8.0.2",
      "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
@@ -179,178 +165,147 @@
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    },
    "node_modules/@octokit/auth-token": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
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+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-6.0.0.tgz",
+      "integrity": "sha512-P4YJBPdPSpWTQ1NU4XYdvHvXJJDxM6YwpS0FZHRgP7YFkdVxsWcpWGy/NVqlAA7PcPCnMacXlRm1y2PFZRWL/w==",
      "license": "MIT",
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/core": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-5.2.2.tgz",
-      "integrity": "sha512-/g2d4sW9nUDJOMz3mabVQvOGhVa4e/BN/Um7yca9Bb2XTzPPnfTWHWQg+IsEYO7M3Vx+EXvaM/I2pJWIMun1bg==",
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-        "universal-user-agent": "^6.0.0"
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-        "@octokit/types": "^13.0.0",
+        "@octokit/request-error": "^7.0.2",
+        "@octokit/types": "^16.0.0",
        "bottleneck": "^2.15.3"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      },
      "peerDependencies": {
-        "@octokit/core": "5"
+        "@octokit/core": ">=7"
      }
    },
    "node_modules/@octokit/request": {
-      "version": "8.4.1",
-      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-8.4.1.tgz",
-      "integrity": "sha512-qnB2+SY3hkCmBxZsR/MPCybNmbJe4KAlfWErXq+rBKkQJlbjdJeS85VI9r8UqeLYLvnAenU8Q1okM/0MBsAGXw==",
+      "version": "10.0.7",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-10.0.7.tgz",
+      "integrity": "sha512-v93h0i1yu4idj8qFPZwjehoJx4j3Ntn+JhXsdJrG9pYaX6j/XRz2RmasMUHtNgQD39nrv/VwTWSqK0RNXR8upA==",
      "license": "MIT",
      "dependencies": {
-        "@octokit/endpoint": "^9.0.6",
-        "@octokit/request-error": "^5.1.1",
-        "@octokit/types": "^13.1.0",
-        "universal-user-agent": "^6.0.0"
+        "@octokit/endpoint": "^11.0.2",
+        "@octokit/request-error": "^7.0.2",
+        "@octokit/types": "^16.0.0",
+        "fast-content-type-parse": "^3.0.0",
+        "universal-user-agent": "^7.0.2"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/request-error": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-5.1.1.tgz",
-      "integrity": "sha512-v9iyEQJH6ZntoENr9/yXxjuezh4My67CBSu9r6Ve/05Iu5gNgnisNWOsoJHTP6k0Rr0+HQIpnH+kyammu90q/g==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-7.1.0.tgz",
+      "integrity": "sha512-KMQIfq5sOPpkQYajXHwnhjCC0slzCNScLHs9JafXc4RAJI+9f+jNDlBNaIMTvazOPLgb4BnlhGJOTbnN0wIjPw==",
      "license": "MIT",
      "dependencies": {
-        "@octokit/types": "^13.1.0",
-        "deprecation": "^2.0.0",
-        "once": "^1.4.0"
+        "@octokit/types": "^16.0.0"
      },
      "engines": {
-        "node": ">= 18"
+        "node": ">= 20"
      }
    },
    "node_modules/@octokit/types": {
-      "version": "13.10.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-13.10.0.tgz",
-      "integrity": "sha512-ifLaO34EbbPj0Xgro4G5lP5asESjwHracYJvVaPIyXMuiuXLlhic3S47cBdTb+jfODkTE5YtGCLt3Ay3+J97sA==",
+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-16.0.0.tgz",
+      "integrity": "sha512-sKq+9r1Mm4efXW1FCk7hFSeJo4QKreL/tTbR0rz/qx/r1Oa2VV83LTA/H/MuCOX7uCIJmQVRKBcbmWoySjAnSg==",
      "license": "MIT",
      "dependencies": {
-        "@octokit/openapi-types": "^24.2.0"
+        "@octokit/openapi-types": "^27.0.0"
      }
    },
    "node_modules/@peculiar/asn1-cms": {
@@ -711,9 +666,9 @@
      "license": "MIT"
    },
    "node_modules/before-after-hook": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-2.2.3.tgz",
-      "integrity": "sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-4.0.0.tgz",
+      "integrity": "sha512-q6tR3RPqIB1pMiTRMFcZwuG5T8vwp+vUvEG0vuI6B+Rikh5BfPp2fQ82c925FOs+b0lcFQ8CFrL+KbilfZFhOQ==",
      "license": "Apache-2.0"
    },
    "node_modules/bottleneck": {
@@ -832,12 +787,6 @@
        }
      }
    },
-    "node_modules/deprecation": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/deprecation/-/deprecation-2.3.1.tgz",
-      "integrity": "sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==",
-      "license": "ISC"
-    },
    "node_modules/eastasianwidth": {
      "version": "0.2.0",
      "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
@@ -866,6 +815,22 @@
      "integrity": "sha512-2bmlRpNKBxT/CRmPOlyISQpNj+qSeYvcym/uT0Jx2bMOlKLtSy1ZmLuVxSEKKyor/N5yhvp/ZiG1oE3DEYMSFA==",
      "license": "MIT"
    },
+    "node_modules/fast-content-type-parse": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/fast-content-type-parse/-/fast-content-type-parse-3.0.0.tgz",
+      "integrity": "sha512-ZvLdcY8P+N8mGQJahJV5G4U88CSvT1rP8ApL6uETe88MBXrBHAkZlSEySdUlyztF7ccb+Znos3TFqaepHxdhBg==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT"
+    },
    "node_modules/foreground-child": {
      "version": "3.3.1",
      "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-3.3.1.tgz",
@@ -1236,15 +1201,6 @@
        "node": ">= 10.13"
      }
    },
-    "node_modules/once": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
-      "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
-      "license": "ISC",
-      "dependencies": {
-        "wrappy": "1"
-      }
-    },
    "node_modules/p-map": {
      "version": "7.0.3",
      "resolved": "https://registry.npmjs.org/p-map/-/p-map-7.0.3.tgz",
@@ -1573,9 +1529,9 @@
      }
    },
    "node_modules/tar": {
-      "version": "7.5.2",
-      "resolved": "https://registry.npmjs.org/tar/-/tar-7.5.2.tgz",
-      "integrity": "sha512-7NyxrTE4Anh8km8iEy7o0QYPs+0JKBTj5ZaqHg6B39erLg0qYXN3BijtShwbsNSvQ+LN75+KV+C4QR/f6Gwnpg==",
+      "version": "7.5.10",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-7.5.10.tgz",
+      "integrity": "sha512-8mOPs1//5q/rlkNSPcCegA6hiHJYDmSLEI8aMH/CdSQJNWztHC9WHNam5zdQlfpTwB9Xp7IBEsHfV5LKMJGVAw==",
      "license": "BlueOak-1.0.0",
      "dependencies": {
        "@isaacs/fs-minipass": "^4.0.0",
@@ -1625,10 +1581,9 @@
      }
    },
    "node_modules/undici": {
-      "version": "6.21.3",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-6.21.3.tgz",
-      "integrity": "sha512-gBLkYIlEnSp8pFbT64yFgGE6UIB9tAkhukC23PmMDCe5Nd+cRqKxSjw5y54MK2AZMgZfJWMaNE4nYUHgi1XEOw==",
-      "dev": true,
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.23.0.tgz",
+      "integrity": "sha512-VfQPToRA5FZs/qJxLIinmU59u0r7LXqoJkCzinq3ckNJp3vKEh7jTWN589YQ5+aoAC/TGRLyJLCPKcLQbM8r9g==",
      "license": "MIT",
      "engines": {
        "node": ">=18.17"
@@ -1666,9 +1621,9 @@
      }
    },
    "node_modules/universal-user-agent": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-6.0.1.tgz",
-      "integrity": "sha512-yCzhz6FN2wU1NiiQRogkTQszlQSlpWaw8SvVegAc+bDxbzHgh1vX8uIe8OYyMH6DwH+sdTJsgMl36+mSMdRJIQ==",
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-7.0.3.tgz",
+      "integrity": "sha512-TmnEAEAsBJVZM/AADELsK76llnwcf9vMKuPz8JflO1frO8Lchitr0fNaN9d+Ap0BjKtqWqd/J17qeDnXh8CL2A==",
      "license": "ISC"
    },
    "node_modules/webcrypto-core": {
@@ -1791,12 +1746,6 @@
        "node": ">=8"
      }
    },
-    "node_modules/wrappy": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
-      "license": "ISC"
-    },
    "node_modules/yallist": {
      "version": "5.0.0",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-5.0.0.tgz",
@@ -1,6 +1,6 @@
 {
  "name": "@actions/attest",
-  "version": "2.1.0",
+  "version": "3.2.0",
  "description": "Actions attestation lib",
  "keywords": [
    "github",
@@ -9,8 +9,15 @@
  ],
  "homepage": "https://github.com/actions/toolkit/tree/main/packages/attest",
  "license": "MIT",
+  "type": "module",
  "main": "lib/index.js",
  "types": "lib/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/index.d.ts",
+      "import": "./lib/index.js"
+    }
+  },
  "directories": {
    "lib": "lib",
    "test": "__tests__"
@@ -29,7 +36,7 @@
  },
  "scripts": {
    "test": "echo \"Error: run tests from root\" && exit 1",
-    "tsc": "tsc"
+    "tsc": "tsc && cp src/internal/package-version.cjs lib/internal/"
  },
  "bugs": {
    "url": "https://github.com/actions/toolkit/issues"
@@ -39,20 +46,15 @@
    "@sigstore/rekor-types": "^3.0.0",
    "@types/jsonwebtoken": "^9.0.6",
    "nock": "^13.5.1",
-    "undici": "^6.20.0"
+    "undici": "^6.23.0"
  },
  "dependencies": {
-    "@actions/core": "^1.11.1",
-    "@actions/github": "^6.0.0",
-    "@actions/http-client": "^2.2.3",
-    "@octokit/plugin-retry": "^6.0.1",
+    "@actions/core": "^3.0.0",
+    "@actions/github": "^9.0.0",
+    "@actions/http-client": "^4.0.0",
+    "@octokit/plugin-retry": "^8.0.3",
    "@sigstore/bundle": "^3.1.0",
    "@sigstore/sign": "^3.1.0",
    "jose": "^5.10.0"
-  },
-  "overrides": {
-    "@octokit/plugin-retry": {
-      "@octokit/core": "^5.2.0"
-    }
  }
 }
@@ -1,6 +1,7 @@
 import * as github from '@actions/github'
 import {retry} from '@octokit/plugin-retry'
 import {RequestHeaders} from '@octokit/types'
+import {getUserAgent} from './internal/utils.js'

 const CREATE_STORAGE_RECORD_REQUEST =
  'POST /orgs/{owner}/artifacts/metadata/storage-record'
@@ -52,10 +53,16 @@ export async function createStorageRecord(
 ): Promise<number[]> {
  const retries = retryAttempts ?? DEFAULT_RETRY_COUNT
  const octokit = github.getOctokit(token, {retry: {retries}}, retry)
+
+  const headersWithUserAgent = {
+    'User-Agent': getUserAgent(),
+    ...headers
+  }
+
  try {
    const response = await octokit.request(CREATE_STORAGE_RECORD_REQUEST, {
      owner: github.context.repo.owner,
-      headers,
+      headers: headersWithUserAgent,
      ...buildRequestParams(artifactOptions, packageRegistryOptions)
    })

@@ -1,12 +1,12 @@
 import {bundleToJSON} from '@sigstore/bundle'
 import {X509Certificate} from 'crypto'
-import {SigstoreInstance, signingEndpoints} from './endpoints'
-import {buildIntotoStatement} from './intoto'
-import {Payload, signPayload} from './sign'
-import {writeAttestation} from './store'
+import {SigstoreInstance, signingEndpoints} from './endpoints.js'
+import {buildIntotoStatement} from './intoto.js'
+import {Payload, signPayload} from './sign.js'
+import {writeAttestation} from './store.js'

 import type {Bundle} from '@sigstore/sign'
-import type {Attestation, Predicate, Subject} from './shared.types'
+import type {Attestation, Predicate, Subject} from './shared.types.js'

 const INTOTO_PAYLOAD_TYPE = 'application/vnd.in-toto+json'

@@ -1,10 +1,15 @@
-export {createStorageRecord} from './artifactMetadata'
-export {AttestOptions, attest} from './attest'
+export {
+  createStorageRecord,
+  ArtifactOptions,
+  PackageRegistryOptions
+} from './artifactMetadata.js'
+export {AttestOptions, attest} from './attest.js'
 export {
  AttestProvenanceOptions,
  attestProvenance,
  buildSLSAProvenancePredicate
-} from './provenance'
+} from './provenance.js'

 export type {SerializedBundle} from '@sigstore/bundle'
-export type {Attestation, Predicate, Subject} from './shared.types'
+export type {Attestation, Predicate, Subject} from './shared.types.js'
+export type {SigstoreInstance} from './endpoints.js'
@@ -0,0 +1,7 @@
+// This file exists as a CommonJS module to read the version from package.json.
+// In an ESM package, using `require()` directly in .ts files requires disabling
+// ESLint rules and doesn't work reliably across all Node.js versions.
+// By keeping this as a .cjs file, we can use require() naturally and export
+// the version for the ESM modules to import.
+const packageJson = require('../../package.json')
+module.exports = {version: packageJson.version}
@@ -0,0 +1,15 @@
+import {version} from './package-version.cjs'
+
+export const getUserAgent = (): string => {
+  const baseUserAgent = `@actions/attest-${version}`
+
+  const orchId = process.env['ACTIONS_ORCHESTRATION_ID']
+  if (orchId) {
+    // Sanitize the orchestration ID to ensure it contains only valid characters
+    // Valid characters: 0-9, a-z, _, -, .
+    const sanitizedId = orchId.replace(/[^a-z0-9_.-]/gi, '_')
+    return `${baseUserAgent} actions_orchestration_id/${sanitizedId}`
+  }
+
+  return baseUserAgent
+}
@@ -1,4 +1,4 @@
-import {Predicate, Subject} from './shared.types'
+import {Predicate, Subject} from './shared.types.js'

 const INTOTO_STATEMENT_V1_TYPE = 'https://in-toto.io/Statement/v1'

@@ -1,6 +1,6 @@
-import {attest, AttestOptions} from './attest'
-import {getIDTokenClaims} from './oidc'
-import type {Attestation, Predicate} from './shared.types'
+import {attest, AttestOptions} from './attest.js'
+import {getIDTokenClaims} from './oidc.js'
+import type {Attestation, Predicate} from './shared.types.js'

 const SLSA_PREDICATE_V1_TYPE = 'https://slsa.dev/provenance/v1'
 const GITHUB_BUILD_TYPE = 'https://actions.github.io/buildtypes/workflow/v1'
@@ -1,6 +1,7 @@
 import * as github from '@actions/github'
 import {retry} from '@octokit/plugin-retry'
 import {RequestHeaders} from '@octokit/types'
+import {getUserAgent} from './internal/utils.js'

 const CREATE_ATTESTATION_REQUEST = 'POST /repos/{owner}/{repo}/attestations'
 const DEFAULT_RETRY_COUNT = 5
@@ -24,11 +25,16 @@ export const writeAttestation = async (
  const retries = options.retry ?? DEFAULT_RETRY_COUNT
  const octokit = github.getOctokit(token, {retry: {retries}}, retry)

+  const headers = {
+    'User-Agent': getUserAgent(),
+    ...options.headers
+  }
+
  try {
    const response = await octokit.request(CREATE_ATTESTATION_REQUEST, {
      owner: github.context.repo.owner,
      repo: github.context.repo.repo,
-      headers: options.headers,
+      headers,
      bundle: attestation as {
        mediaType?: string
        verificationMaterial?: {[key: string]: unknown}
@@ -4,7 +4,9 @@
    "baseUrl": "./",
    "outDir": "./lib",
    "declaration": true,
-    "rootDir": "./src"
+    "rootDir": "./src",
+    "module": "node16",
+    "moduleResolution": "node16"
  },
  "include": [
    "./src"
@@ -1,14 +1,48 @@
 # @actions/cache Releases

-### 4.1.0
+## 6.0.0
+
+- **Breaking change**: Package is now ESM-only
+  - CommonJS consumers must use dynamic `import()` instead of `require()`
+
+## 5.0.5
+
+- Bump `@actions/glob` to `0.5.1`
+
+## 5.0.4
+
+- Bump `@actions/http-client` to `3.0.2`
+
+## 5.0.3
+
+Prevent retries for rate limited cache operations [2243](https://github.com/actions/toolkit/pull/2243).
+
+## 5.0.1
+
+- Fix Node.js 24 punycode deprecation warning by updating `@azure/storage-blob` from `^12.13.0` to `^12.29.1` [#2213](https://github.com/actions/toolkit/pull/2213)
+- Newer storage-blob uses `@azure/core-rest-pipeline` instead of deprecated `@azure/core-http`, which eliminates the transitive dependency on `node-fetch@2` → `whatwg-url@5` → `tr46@0.0.3` that used the deprecated punycode module
+
+## 5.0.0
+
+- Remove `@azure/ms-rest-js` dependency [#2197](https://github.com/actions/toolkit/pull/2197)
+  - The `TransferProgressEvent` type is now imported from `@azure/core-rest-pipeline` instead of `@azure/ms-rest-js`
+- Bump `@actions/core` from `^1.11.1` to `^2.0.0` [#2198](https://github.com/actions/toolkit/pull/2198)
+- Bump `@actions/exec` from `^1.0.1` to `^2.0.0` [#2198](https://github.com/actions/toolkit/pull/2198)
+- Bump `@actions/glob` from `^0.1.0` to `^0.5.0` [#2198](https://github.com/actions/toolkit/pull/2198)
+- Bump `@actions/http-client` from `^2.1.1` to `^3.0.0` [#2198](https://github.com/actions/toolkit/pull/2198)
+- Bump `@actions/io` from `^1.0.1` to `^2.0.0` [#2198](https://github.com/actions/toolkit/pull/2198)
+- Add support for Node.js 24 [#2110](https://github.com/actions/toolkit/pull/2110)
+- Add `node-fetch` override to resolve audit vulnerabilities [#2110](https://github.com/actions/toolkit/pull/2110)
+
+## 4.1.0

 - Remove client side 10GiB cache size limit check & update twirp client [#2118](https://github.com/actions/toolkit/pull/2118)

-### 4.0.5
+## 4.0.5

 - Reintroduce @protobuf-ts/runtime-rpc as a runtime dependency [#2113](https://github.com/actions/toolkit/pull/2113)

-### 4.0.4
+## 4.0.4

 ⚠️ Faulty patch release. Upgrade to 4.0.5 instead.

@@ -17,23 +51,23 @@
 - Enhanced server error handling: 5xx HTTP errors are now logged as errors instead of warnings [#2099](https://github.com/actions/toolkit/pull/2099)
 - Fixed cache hit logging to properly distinguish between exact key matches and restore key matches [#2101](https://github.com/actions/toolkit/pull/2101)

-### 4.0.3
+## 4.0.3

 - Added masking for Shared Access Signature (SAS) cache entry URLs [#1982](https://github.com/actions/toolkit/pull/1982)
 - Improved debugging by logging both the cache version alongside the keys requested when a cache restore fails [#1994](https://github.com/actions/toolkit/pull/1994)

-### 4.0.2
+## 4.0.2

 - Wrap create failures in ReserveCacheError [#1966](https://github.com/actions/toolkit/pull/1966)

-### 4.0.1
+## 4.0.1

 - Remove runtime dependency on `twirp-ts` [#1947](https://github.com/actions/toolkit/pull/1947)
 - Cache miss as debug, not warning annotation [#1954](https://github.com/actions/toolkit/pull/1954)

-### 4.0.0
+## 4.0.0

-#### Important changes
+### Important changes

 The cache backend service has been rewritten from the ground up for improved performance and reliability. The [@actions/cache](https://github.com/actions/toolkit/tree/main/packages/cache) package now integrates with the new cache service (v2) APIs.

@@ -47,182 +81,182 @@ Upgrading to the recommended version should not break or require any changes to

 Read more about the change & access the migration guide: [reference to the announcement](https://github.com/actions/toolkit/discussions/1890).

-#### Minor changes
+### Minor changes

 - Update `@actions/core` to `1.11.0`
 - Update `semver` `6.3.1`
 - Add `twirp-ts` `2.5.0` to dependencies

-### 3.3.0
+## 3.3.0

 - Update `@actions/core` to `1.11.1`
 - Remove dependency on `uuid` package [#1824](https://github.com/actions/toolkit/pull/1824), [#1842](https://github.com/actions/toolkit/pull/1842)

-### 3.2.4
+## 3.2.4

 - Updated `isGhes` check to include `.ghe.com` and `.ghe.localhost` as accepted hosts

-### 3.2.3
+## 3.2.3

 - Fixed a bug that mutated path arguments to `getCacheVersion` [#1378](https://github.com/actions/toolkit/pull/1378)

-### 3.2.2
+## 3.2.2

 - Add new default cache download method to improve performance and reduce hangs [#1484](https://github.com/actions/toolkit/pull/1484)

-### 3.2.1
+## 3.2.1

 - Updated @azure/storage-blob to `v12.13.0`

-### 3.2.0
+## 3.2.0

 - Add `lookupOnly` to cache restore `DownloadOptions`.

-### 3.1.4
+## 3.1.4

 - Fix zstd not being used due to `zstd --version` output change in zstd 1.5.4 release. See [#1353](https://github.com/actions/toolkit/pull/1353).

-### 3.1.3
+## 3.1.3

 - Fix to prevent from setting MYSYS environement variable globally [#1329](https://github.com/actions/toolkit/pull/1329).

-### 3.1.2
+## 3.1.2

 - Fix issue with symlink restoration on windows.

-### 3.1.1
+## 3.1.1

 - Reverted changes in 3.1.0 to fix issue with symlink restoration on windows.
 - Added support for verbose logging about cache version during cache miss.

-### 3.1.0
+## 3.1.0

 - Update actions/cache on windows to use gnu tar and zstd by default
 - Update actions/cache on windows to fallback to bsdtar and zstd if gnu tar is not available.
 - Added support for fallback to gzip to restore old caches on windows.

-### 3.1.0-beta.3
+## 3.1.0-beta.3

 - Bug Fixes for fallback to gzip to restore old caches on windows and bsdtar if gnutar is not available.

-### 3.1.0-beta.2
+## 3.1.0-beta.2

 - Added support for fallback to gzip to restore old caches on windows.

-### 3.0.6
+## 3.0.6

 - Added `@azure/abort-controller` to dependencies to fix compatibility issue with ESM [#1208](https://github.com/actions/toolkit/issues/1208)

-### 3.0.5
+## 3.0.5

 - Update `@actions/cache` to use `@actions/core@^1.10.0`

-### 3.0.4
+## 3.0.4

 - Fix zstd not working for windows on gnu tar in issues [#888](https://github.com/actions/cache/issues/888) and [#891](https://github.com/actions/cache/issues/891).
 - Allowing users to provide a custom timeout as input for aborting download of a cache segment using an environment variable `SEGMENT_DOWNLOAD_TIMEOUT_MINS`. Default is 60 minutes.

-### 3.0.3
+## 3.0.3

 - Bug fixes for download stuck issue [#810](https://github.com/actions/cache/issues/810).

-### 3.0.2
+## 3.0.2

 - Added 1 hour timeout for the download stuck issue [#810](https://github.com/actions/cache/issues/810).

-### 3.0.1
+## 3.0.1

 - Fix [#833](https://github.com/actions/cache/issues/833) - cache doesn't work with github workspace directory.
 - Fix [#809](https://github.com/actions/cache/issues/809) `zstd -d: no such file or directory` error on AWS self-hosted runners.

-### 3.0.0
+## 3.0.0

 - Updated actions/cache to suppress Actions cache server error and log warning for those error  [#1122](https://github.com/actions/toolkit/pull/1122)

-### 2.0.6
+## 2.0.6

 - Fix `Tar failed with error: The process '/usr/bin/tar' failed with exit code 1` issue when temp directory where tar is getting created is actually the subdirectory of the path mentioned by the user for caching. ([issue](https://github.com/actions/cache/issues/689))

-### 2.0.5
+## 2.0.5

 - Fix to avoid saving empty cache when no files are available for caching. ([issue](https://github.com/actions/cache/issues/624))

-### 2.0.4
+## 2.0.4

 - Update to v2.0.1 of `@actions/http-client` [#1087](https://github.com/actions/toolkit/pull/1087)

-### 2.0.3
+## 2.0.3

 - Update to v2.0.0 of `@actions/http-client`

-### 2.0.0
+## 2.0.0

 - Added support to check if Actions cache service feature is available or not [#1028](https://github.com/actions/toolkit/pull/1028)

-### 1.0.11
+## 1.0.11

 - Fix file downloads > 2GB([issue](https://github.com/actions/cache/issues/773))

-### 1.0.10
+## 1.0.10

 - Update `lockfileVersion` to `v2` in `package-lock.json [#1022](https://github.com/actions/toolkit/pull/1022)

-### 1.0.9
+## 1.0.9

 - Use @azure/ms-rest-js v2.6.0
 - Use @azure/storage-blob v12.8.0

-### 1.0.8
+## 1.0.8

 - Increase the allowed artifact cache size from 5GB to 10GB ([issue](https://github.com/actions/cache/discussions/497))

-### 1.0.7
+## 1.0.7

 - Fixes permissions issue extracting archives with GNU tar on macOS ([issue](https://github.com/actions/cache/issues/527))

-### 1.0.6
+## 1.0.6

 - Make caching more verbose [#650](https://github.com/actions/toolkit/pull/650)
 - Use GNU tar on macOS if available [#701](https://github.com/actions/toolkit/pull/701)

-### 1.0.5
+## 1.0.5

 - Fix to ensure Windows cache paths get resolved correctly

-### 1.0.4
+## 1.0.4

 - Use @actions/core v1.2.6
 - Fixes uploadChunk to throw an error if any unsuccessful response code is received

-### 1.0.3
+## 1.0.3

 - Use http-client v1.0.9
 - Fixes error handling so retries are not attempted on non-retryable errors (409 Conflict, for example)
 - Adds 5 second delay between retry attempts

-### 1.0.2
+## 1.0.2

 - Use posix archive format to add support for some tools

-### 1.0.1
+## 1.0.1

 - Fix bug in downloading large files (> 2 GBs) with the Azure SDK

-### 1.0.0
+## 1.0.0

 - Downloads Azure-hosted caches using the Azure SDK for speed and reliability
 - Displays download progress
 - Includes changes that break compatibility with earlier versions, including:
  - `retry`, `retryTypedResponse`, and `retryHttpClientResponse` moved from `cacheHttpClient` to `requestUtils`

-### 0.2.1
+## 0.2.1

 - Fix to await async function getCompressionMethod
  
-### 0.2.0
+## 0.2.0

 - Fixes issues with the zstd compression algorithm on Windows and Ubuntu 16.04 [#469](https://github.com/actions/toolkit/pull/469)
  
-### 0.1.0
+## 0.1.0

 - Initial release
@@ -1,5 +1,5 @@
 name: 'Set env variables'
 description: 'Sets certain env variables so that e2e restore and save cache can be tested in a shell'
 runs:
-  using: 'node12'
+  using: 'node20'
  main: 'index.js'
@@ -1,8 +1,9 @@
 // Certain env variables are not set by default in a shell context and are only available in a node context from a running action
 // In order to be able to restore and save cache e2e in a shell when running CI tests, we need these env variables set
-const fs = require('fs');
-const os = require('os');
-const filePath = process.env[`GITHUB_ENV`]
+import fs from 'fs'
+import os from 'os'
+
+const filePath = process.env['GITHUB_ENV']
 fs.appendFileSync(filePath, `ACTIONS_CACHE_SERVICE_V2=true${os.EOL}`, {
    encoding: 'utf8'
 })
@@ -0,0 +1,174 @@
+import * as http from 'http'
+import * as net from 'net'
+import {HttpClient} from '@actions/http-client'
+import * as core from '@actions/core'
+import * as config from '../src/internal/config'
+import * as cacheUtils from '../src/internal/cacheUtils'
+import {internalCacheTwirpClient} from '../src/internal/shared/cacheTwirpClient'
+
+jest.mock('@actions/http-client')
+
+const clientOptions = {
+  maxAttempts: 5,
+  retryIntervalMs: 1,
+  retryMultiplier: 1.5
+}
+
+// noopLogs mocks the console.log and core.* functions to prevent output in the console while testing
+const noopLogs = (): void => {
+  jest.spyOn(console, 'log').mockImplementation(() => {})
+  jest.spyOn(core, 'debug').mockImplementation(() => {})
+  jest.spyOn(core, 'info').mockImplementation(() => {})
+  jest.spyOn(core, 'warning').mockImplementation(() => {})
+}
+
+describe('cacheTwirpClient', () => {
+  beforeAll(() => {
+    noopLogs()
+    jest
+      .spyOn(config, 'getCacheServiceURL')
+      .mockReturnValue('http://localhost:8080')
+    jest.spyOn(cacheUtils, 'getRuntimeToken').mockReturnValue('token')
+  })
+
+  beforeEach(() => {
+    jest.clearAllMocks()
+  })
+
+  it('should fail immediately on 429 rate limit without retrying', async () => {
+    const mockPost = jest.fn(() => {
+      const msg = new http.IncomingMessage(new net.Socket())
+      msg.statusCode = 429
+      msg.statusMessage = 'Too Many Requests'
+      return {
+        message: msg,
+        readBody: async () => {
+          return Promise.resolve(`{"ok": false}`)
+        }
+      }
+    })
+
+    ;(HttpClient as unknown as jest.Mock).mockImplementation(() => {
+      return {
+        post: mockPost
+      }
+    })
+
+    const client = internalCacheTwirpClient(clientOptions)
+    await expect(
+      client.CreateCacheEntry({
+        key: 'test-key',
+        version: 'test-version'
+      })
+    ).rejects.toThrow(
+      'Failed to CreateCacheEntry: Rate limited: Failed request: (429) Too Many Requests'
+    )
+
+    // Should only be called once - no retries for 429
+    expect(mockPost).toHaveBeenCalledTimes(1)
+  })
+
+  it('should log warning with retry-after header on 429', async () => {
+    const warningSpy = jest.spyOn(core, 'warning')
+
+    const mockPost = jest.fn(() => {
+      const msg = new http.IncomingMessage(new net.Socket())
+      msg.statusCode = 429
+      msg.statusMessage = 'Too Many Requests'
+      msg.headers = {'retry-after': '60'}
+      return {
+        message: msg,
+        readBody: async () => {
+          return Promise.resolve(`{"ok": false}`)
+        }
+      }
+    })
+
+    ;(HttpClient as unknown as jest.Mock).mockImplementation(() => {
+      return {
+        post: mockPost
+      }
+    })
+
+    const client = internalCacheTwirpClient(clientOptions)
+    await expect(
+      client.CreateCacheEntry({
+        key: 'test-key',
+        version: 'test-version'
+      })
+    ).rejects.toThrow('Rate limited')
+
+    expect(mockPost).toHaveBeenCalledTimes(1)
+    expect(warningSpy).toHaveBeenCalledWith(
+      "You've hit a rate limit, your rate limit will reset in 60 seconds"
+    )
+  })
+
+  it('should not log warning if retry-after header is missing on 429', async () => {
+    const warningSpy = jest.spyOn(core, 'warning')
+
+    const mockPost = jest.fn(() => {
+      const msg = new http.IncomingMessage(new net.Socket())
+      msg.statusCode = 429
+      msg.statusMessage = 'Too Many Requests'
+      // No retry-after header
+      return {
+        message: msg,
+        readBody: async () => {
+          return Promise.resolve(`{"ok": false}`)
+        }
+      }
+    })
+
+    ;(HttpClient as unknown as jest.Mock).mockImplementation(() => {
+      return {
+        post: mockPost
+      }
+    })
+
+    const client = internalCacheTwirpClient(clientOptions)
+    await expect(
+      client.CreateCacheEntry({
+        key: 'test-key',
+        version: 'test-version'
+      })
+    ).rejects.toThrow('Rate limited')
+
+    expect(mockPost).toHaveBeenCalledTimes(1)
+    expect(warningSpy).not.toHaveBeenCalled()
+  })
+
+  it('should not log warning if retry-after header is invalid on 429', async () => {
+    const warningSpy = jest.spyOn(core, 'warning')
+
+    const mockPost = jest.fn(() => {
+      const msg = new http.IncomingMessage(new net.Socket())
+      msg.statusCode = 429
+      msg.statusMessage = 'Too Many Requests'
+      msg.headers = {'retry-after': 'invalid'}
+      return {
+        message: msg,
+        readBody: async () => {
+          return Promise.resolve(`{"ok": false}`)
+        }
+      }
+    })
+
+    ;(HttpClient as unknown as jest.Mock).mockImplementation(() => {
+      return {
+        post: mockPost
+      }
+    })
+
+    const client = internalCacheTwirpClient(clientOptions)
+    await expect(
+      client.CreateCacheEntry({
+        key: 'test-key',
+        version: 'test-version'
+      })
+    ).rejects.toThrow('Rate limited')
+
+    expect(mockPost).toHaveBeenCalledTimes(1)
+    expect(warningSpy).not.toHaveBeenCalled()
+  })
+})
@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+// Helper script to restore cache for e2e testing
+import * as cache from '../lib/cache.js'
+
+const [prefix, runId, useAzureSdk] = process.argv.slice(2)
+
+if (!prefix || !runId) {
+  console.error('Usage: restore-cache.mjs <prefix> <runId> [useAzureSdk]')
+  process.exit(1)
+}
+
+const key = `test-${prefix}-${runId}`
+const paths = ['test-cache', '~/test-cache']
+const options = {useAzureSdk: useAzureSdk !== 'false'}
+
+console.log(`Restoring cache with key: ${key}`)
+console.log(`Paths: ${paths.join(', ')}`)
+console.log(`Using Azure SDK: ${options.useAzureSdk}`)
+
+const maxRetries = 3
+const retryDelayMs = 5000
+
+for (let attempt = 1; attempt <= maxRetries; attempt++) {
+  try {
+    console.log(`Attempt ${attempt} of ${maxRetries}`)
+    const restoredKey = await cache.restoreCache(paths, key, [], options)
+
+    if (restoredKey) {
+      console.log(`Cache restored with key: ${restoredKey}`)
+      process.exit(0)
+    } else {
+      console.log('Cache not found on this attempt')
+    }
+  } catch (error) {
+    console.error(`Error on attempt ${attempt}:`, error.message)
+  }
+
+  if (attempt < maxRetries) {
+    console.log(`Waiting ${retryDelayMs / 1000}s before retry...`)
+    await new Promise(resolve => setTimeout(resolve, retryDelayMs))
+  }
+}
+
+console.error(`Failed to restore cache after ${maxRetries} attempts`)
+process.exit(1)
@@ -0,0 +1,24 @@
+#!/usr/bin/env node
+// Helper script to save cache for e2e testing
+import * as cache from '../lib/cache.js'
+
+const [prefix, runId] = process.argv.slice(2)
+
+if (!prefix || !runId) {
+  console.error('Usage: save-cache.mjs <prefix> <runId>')
+  process.exit(1)
+}
+
+const key = `test-${prefix}-${runId}`
+const paths = ['test-cache', '~/test-cache']
+
+console.log(`Saving cache with key: ${key}`)
+console.log(`Paths: ${paths.join(', ')}`)
+
+try {
+  const cacheId = await cache.saveCache(paths, key)
+  console.log(`Cache saved with ID: ${cacheId}`)
+} catch (error) {
+  console.error('Error saving cache:', error)
+  process.exit(1)
+}
@@ -1,87 +1,86 @@
 {
  "name": "@actions/cache",
-  "version": "5.0.0",
+  "version": "6.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "@actions/cache",
-      "version": "5.0.0",
+      "version": "6.0.0",
      "license": "MIT",
      "dependencies": {
-        "@actions/core": "^1.11.1",
-        "@actions/exec": "^1.0.1",
-        "@actions/glob": "^0.1.0",
-        "@actions/http-client": "^2.1.1",
-        "@actions/io": "^1.0.1",
-        "@azure/abort-controller": "^1.1.0",
+        "@actions/core": "^3.0.0",
+        "@actions/exec": "^3.0.0",
+        "@actions/glob": "^0.6.1",
+        "@actions/http-client": "^4.0.0",
+        "@actions/io": "^3.0.0",
        "@azure/core-rest-pipeline": "^1.22.0",
-        "@azure/storage-blob": "^12.13.0",
+        "@azure/storage-blob": "^12.30.0",
        "@protobuf-ts/runtime-rpc": "^2.11.1",
-        "semver": "^6.3.1"
+        "semver": "^7.7.3"
      },
      "devDependencies": {
        "@protobuf-ts/plugin": "^2.9.4",
-        "@types/node": "^24.1.0",
-        "@types/semver": "^6.0.0",
+        "@types/node": "^25.1.0",
+        "@types/semver": "^7.7.1",
        "typescript": "^5.2.2"
      }
    },
    "node_modules/@actions/core": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.11.1.tgz",
-      "integrity": "sha512-hXJCSrkwfA46Vd9Z3q4cpEpHB1rL5NG04+/rbqW9d3+CSvtB1tYe8UTpAlixa1vj0m/ULglfEK2UKxMGxCxv5A==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-3.0.0.tgz",
+      "integrity": "sha512-zYt6cz+ivnTmiT/ksRVriMBOiuoUpDCJJlZ5KPl2/FRdvwU3f7MPh9qftvbkXJThragzUZieit2nyHUyw53Seg==",
      "license": "MIT",
      "dependencies": {
-        "@actions/exec": "^1.1.1",
-        "@actions/http-client": "^2.0.1"
+        "@actions/exec": "^3.0.0",
+        "@actions/http-client": "^4.0.0"
      }
    },
    "node_modules/@actions/exec": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.1.1.tgz",
-      "integrity": "sha512-+sCcHHbVdk93a0XT19ECtO/gIXoxvdsgQLzb2fE2/5sIZmWQuluYyjPQtrtTHdU1YzTZ7bAPN4sITq2xi1679w==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-3.0.0.tgz",
+      "integrity": "sha512-6xH/puSoNBXb72VPlZVm7vQ+svQpFyA96qdDBvhB8eNZOE8LtPf9L4oAsfzK/crCL8YZ+19fKYVnM63Sl+Xzlw==",
      "license": "MIT",
      "dependencies": {
-        "@actions/io": "^1.0.1"
+        "@actions/io": "^3.0.2"
      }
    },
    "node_modules/@actions/glob": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.1.2.tgz",
-      "integrity": "sha512-SclLR7Ia5sEqjkJTPs7Sd86maMDw43p769YxBOxvPvEWuPEhpAnBsQfENOpXjFYMmhCqd127bmf+YdvJqVqR4A==",
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/@actions/glob/-/glob-0.6.1.tgz",
+      "integrity": "sha512-K4+2Ac5ILcf2ySdJCha+Pop9NcKjxqCL4xL4zI50dgB2PbXgC0+AcP011xfH4Of6b4QEJJg8dyZYv7zl4byTsw==",
      "license": "MIT",
      "dependencies": {
-        "@actions/core": "^1.2.6",
+        "@actions/core": "^3.0.0",
        "minimatch": "^3.0.4"
      }
    },
    "node_modules/@actions/http-client": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.2.3.tgz",
-      "integrity": "sha512-mx8hyJi/hjFvbPokCg4uRd4ZX78t+YyRPtnKWwIl+RzNaVuFpQHfmlGVfsKEJN8LwTCvL+DfVgAM04XaHkm6bA==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-4.0.0.tgz",
+      "integrity": "sha512-QuwPsgVMsD6qaPD57GLZi9sqzAZCtiJT8kVBCDpLtxhL5MydQ4gS+DrejtZZPdIYyB1e95uCK9Luyds7ybHI3g==",
      "license": "MIT",
      "dependencies": {
        "tunnel": "^0.0.6",
-        "undici": "^5.25.4"
+        "undici": "^6.23.0"
      }
    },
    "node_modules/@actions/io": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/@actions/io/-/io-1.1.3.tgz",
-      "integrity": "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@actions/io/-/io-3.0.2.tgz",
+      "integrity": "sha512-nRBchcMM+QK1pdjO7/idu86rbJI5YHUKCvKs0KxnSYbVe3F51UfGxuZX4Qy/fWlp6l7gWFwIkrOzN+oUK03kfw==",
      "license": "MIT"
    },
    "node_modules/@azure/abort-controller": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-1.1.0.tgz",
-      "integrity": "sha512-TrRLIoSQVzfAJX9H1JeFjzAoDGcoK1IYX1UImfceTZpsyYfWr09Ss1aHW1y5TrrR3iq6RZLBwJ3E24uwPhwahw==",
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
+      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
      "license": "MIT",
      "dependencies": {
-        "tslib": "^2.2.0"
+        "tslib": "^2.6.2"
      },
      "engines": {
-        "node": ">=12.0.0"
+        "node": ">=18.0.0"
      }
    },
    "node_modules/@azure/core-auth": {
@@ -98,18 +97,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/core-auth/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-client": {
      "version": "1.10.1",
      "resolved": "https://registry.npmjs.org/@azure/core-client/-/core-client-1.10.1.tgz",
@@ -128,18 +115,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/core-client/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-http-compat": {
      "version": "2.3.1",
      "resolved": "https://registry.npmjs.org/@azure/core-http-compat/-/core-http-compat-2.3.1.tgz",
@@ -154,18 +129,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/core-http-compat/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-lro": {
      "version": "2.7.2",
      "resolved": "https://registry.npmjs.org/@azure/core-lro/-/core-lro-2.7.2.tgz",
@@ -181,18 +144,6 @@
        "node": ">=18.0.0"
      }
    },
-    "node_modules/@azure/core-lro/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-paging": {
      "version": "1.6.2",
      "resolved": "https://registry.npmjs.org/@azure/core-paging/-/core-paging-1.6.2.tgz",
@@ -223,18 +174,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/core-rest-pipeline/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-tracing": {
      "version": "1.3.1",
      "resolved": "https://registry.npmjs.org/@azure/core-tracing/-/core-tracing-1.3.1.tgz",
@@ -261,18 +200,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/core-util/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/core-xml": {
      "version": "1.5.0",
      "resolved": "https://registry.npmjs.org/@azure/core-xml/-/core-xml-1.5.0.tgz",
@@ -300,9 +227,9 @@
      }
    },
    "node_modules/@azure/storage-blob": {
-      "version": "12.29.1",
-      "resolved": "https://registry.npmjs.org/@azure/storage-blob/-/storage-blob-12.29.1.tgz",
-      "integrity": "sha512-7ktyY0rfTM0vo7HvtK6E3UvYnI9qfd6Oz6z/+92VhGRveWng3kJwMKeUpqmW/NmwcDNbxHpSlldG+vsUnRFnBg==",
+      "version": "12.30.0",
+      "resolved": "https://registry.npmjs.org/@azure/storage-blob/-/storage-blob-12.30.0.tgz",
+      "integrity": "sha512-peDCR8blSqhsAKDbpSP/o55S4sheNwSrblvCaHUZ5xUI73XA7ieUGGwrONgD/Fng0EoDe1VOa3fAQ7+WGB3Ocg==",
      "license": "MIT",
      "dependencies": {
        "@azure/abort-controller": "^2.1.2",
@@ -316,7 +243,7 @@
        "@azure/core-util": "^1.11.0",
        "@azure/core-xml": "^1.4.5",
        "@azure/logger": "^1.1.4",
-        "@azure/storage-common": "^12.1.1",
+        "@azure/storage-common": "^12.2.0",
        "events": "^3.0.0",
        "tslib": "^2.8.1"
      },
@@ -324,22 +251,10 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/storage-blob/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@azure/storage-common": {
-      "version": "12.1.1",
-      "resolved": "https://registry.npmjs.org/@azure/storage-common/-/storage-common-12.1.1.tgz",
-      "integrity": "sha512-eIOH1pqFwI6UmVNnDQvmFeSg0XppuzDLFeUNO/Xht7ODAzRLgGDh7h550pSxoA+lPDxBl1+D2m/KG3jWzCUjTg==",
+      "version": "12.2.0",
+      "resolved": "https://registry.npmjs.org/@azure/storage-common/-/storage-common-12.2.0.tgz",
+      "integrity": "sha512-YZLxiJ3vBAAnFbG3TFuAMUlxZRexjQX5JDQxOkFGb6e2TpoxH3xyHI6idsMe/QrWtj41U/KoqBxlayzhS+LlwA==",
      "license": "MIT",
      "dependencies": {
        "@azure/abort-controller": "^2.1.2",
@@ -356,18 +271,6 @@
        "node": ">=20.0.0"
      }
    },
-    "node_modules/@azure/storage-common/node_modules/@azure/abort-controller": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/@azure/abort-controller/-/abort-controller-2.1.2.tgz",
-      "integrity": "sha512-nBrLsEWm4J2u5LpAPjxADTlq3trDgVZZXHNKabeXZtpq3d3AbN/KGO82R87rdDz5/lYB024rtEf10/q0urNgsA==",
-      "license": "MIT",
-      "dependencies": {
-        "tslib": "^2.6.2"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      }
-    },
    "node_modules/@bufbuild/protobuf": {
      "version": "2.10.1",
      "resolved": "https://registry.npmjs.org/@bufbuild/protobuf/-/protobuf-2.10.1.tgz",
@@ -401,15 +304,6 @@
        "node": ">=14.17"
      }
    },
-    "node_modules/@fastify/busboy": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
-      "integrity": "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=14"
-      }
-    },
    "node_modules/@protobuf-ts/plugin": {
      "version": "2.11.1",
      "resolved": "https://registry.npmjs.org/@protobuf-ts/plugin/-/plugin-2.11.1.tgz",
@@ -469,9 +363,9 @@
      }
    },
    "node_modules/@types/node": {
-      "version": "24.10.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.10.2.tgz",
-      "integrity": "sha512-WOhQTZ4G8xZ1tjJTvKOpyEVSGgOTvJAfDK3FNFgELyaTpzhdgHVHeqW8V+UJvzF5BT+/B54T/1S2K6gd9c7bbA==",
+      "version": "25.1.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.1.0.tgz",
+      "integrity": "sha512-t7frlewr6+cbx+9Ohpl0NOTKXZNV9xHRmNOvql47BFJKcEG1CxtxlPEEe+gR9uhVWM4DwhnvTF110mIL4yP9RA==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
@@ -479,9 +373,9 @@
      }
    },
    "node_modules/@types/semver": {
-      "version": "6.2.7",
-      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-6.2.7.tgz",
-      "integrity": "sha512-blctEWbzUFzQx799RZjzzIdBJOXmE37YYEyDtKkx5Dg+V7o/zyyAxLPiI98A2jdTtDgxZleMdfV+7p8WbRJ1OQ==",
+      "version": "7.7.1",
+      "resolved": "https://registry.npmjs.org/@types/semver/-/semver-7.7.1.tgz",
+      "integrity": "sha512-FmgJfu+MOcQ370SD0ev7EI8TlCAfKYU+B4m5T3yXc1CiRN94g/SZPtsCkk506aUDtlMnFZvasDwHHUcZUEaYuA==",
      "dev": true,
      "license": "MIT"
    },
@@ -632,12 +526,15 @@
      "license": "MIT"
    },
    "node_modules/semver": {
-      "version": "6.3.1",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
-      "integrity": "sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==",
+      "version": "7.7.3",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.3.tgz",
+      "integrity": "sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==",
      "license": "ISC",
      "bin": {
        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
      }
    },
    "node_modules/strnum": {
@@ -673,7 +570,6 @@
      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
      "dev": true,
      "license": "Apache-2.0",
-      "peer": true,
      "bin": {
        "tsc": "bin/tsc",
        "tsserver": "bin/tsserver"
@@ -683,15 +579,12 @@
      }
    },
    "node_modules/undici": {
-      "version": "5.29.0",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
-      "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.23.0.tgz",
+      "integrity": "sha512-VfQPToRA5FZs/qJxLIinmU59u0r7LXqoJkCzinq3ckNJp3vKEh7jTWN589YQ5+aoAC/TGRLyJLCPKcLQbM8r9g==",
      "license": "MIT",
-      "dependencies": {
-        "@fastify/busboy": "^2.0.0"
-      },
      "engines": {
-        "node": ">=14.0"
+        "node": ">=18.17"
      }
    },
    "node_modules/undici-types": {
@@ -1,7 +1,6 @@
 {
  "name": "@actions/cache",
-  "version": "5.0.0",
-  "preview": true,
+  "version": "6.0.0",
  "description": "Actions cache lib",
  "keywords": [
    "github",
@@ -10,8 +9,15 @@
  ],
  "homepage": "https://github.com/actions/toolkit/tree/main/packages/cache",
  "license": "MIT",
+  "type": "module",
  "main": "lib/cache.js",
  "types": "lib/cache.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/cache.d.ts",
+      "import": "./lib/cache.js"
+    }
+  },
  "directories": {
    "lib": "lib",
    "test": "__tests__"
@@ -31,31 +37,30 @@
  "scripts": {
    "audit-moderate": "npm install && npm audit --json --audit-level=moderate > audit.json",
    "test": "echo \"Error: run tests from root\" && exit 1",
-    "tsc": "tsc"
+    "tsc": "tsc && cp src/internal/shared/package-version.cjs lib/internal/shared/"
  },
  "bugs": {
    "url": "https://github.com/actions/toolkit/issues"
  },
  "dependencies": {
-    "@actions/core": "^1.11.1",
-    "@actions/exec": "^1.0.1",
-    "@actions/glob": "^0.1.0",
-    "@protobuf-ts/runtime-rpc": "^2.11.1",
-    "@actions/http-client": "^2.1.1",
-    "@actions/io": "^1.0.1",
-    "@azure/abort-controller": "^1.1.0",
+    "@actions/core": "^3.0.0",
+    "@actions/exec": "^3.0.0",
+    "@actions/glob": "^0.6.1",
+    "@actions/http-client": "^4.0.0",
+    "@actions/io": "^3.0.0",
    "@azure/core-rest-pipeline": "^1.22.0",
-    "@azure/storage-blob": "^12.13.0",
-    "semver": "^6.3.1"
+    "@azure/storage-blob": "^12.30.0",
+    "@protobuf-ts/runtime-rpc": "^2.11.1",
+    "semver": "^7.7.3"
  },
  "devDependencies": {
-    "@types/node": "^24.1.0",
-    "@types/semver": "^6.0.0",
    "@protobuf-ts/plugin": "^2.9.4",
+    "@types/node": "^25.1.0",
+    "@types/semver": "^7.7.1",
    "typescript": "^5.2.2"
  },
  "overrides": {
    "uri-js": "npm:uri-js-replace@^1.0.1",
    "node-fetch": "^3.3.2"
  }
-}
+}
@@ -1,18 +1,20 @@
 import * as core from '@actions/core'
 import * as path from 'path'
-import * as utils from './internal/cacheUtils'
-import * as cacheHttpClient from './internal/cacheHttpClient'
-import * as cacheTwirpClient from './internal/shared/cacheTwirpClient'
-import {getCacheServiceVersion, isGhes} from './internal/config'
-import {DownloadOptions, UploadOptions} from './options'
-import {createTar, extractTar, listTar} from './internal/tar'
+import * as utils from './internal/cacheUtils.js'
+import * as cacheHttpClient from './internal/cacheHttpClient.js'
+import * as cacheTwirpClient from './internal/shared/cacheTwirpClient.js'
+import {getCacheServiceVersion, isGhes} from './internal/config.js'
+import {DownloadOptions, UploadOptions} from './options.js'
+import {createTar, extractTar, listTar} from './internal/tar.js'
 import {
  CreateCacheEntryRequest,
  FinalizeCacheEntryUploadRequest,
  FinalizeCacheEntryUploadResponse,
  GetCacheEntryDownloadURLRequest
-} from './generated/results/api/v1/cache'
+} from './generated/results/api/v1/cache.js'
 import {HttpClientError} from '@actions/http-client'
+
+export type {DownloadOptions, UploadOptions}
 export class ValidationError extends Error {
  constructor(message: string) {
    super(message)
@@ -12,7 +12,7 @@ import type { PartialMessage } from "@protobuf-ts/runtime";
 import { reflectionMergePartial } from "@protobuf-ts/runtime";
 import { MESSAGE_TYPE } from "@protobuf-ts/runtime";
 import { MessageType } from "@protobuf-ts/runtime";
-import { CacheMetadata } from "../../entities/v1/cachemetadata";
+import { CacheMetadata } from "../../entities/v1/cachemetadata.js";
 /**
 * @generated from protobuf message github.actions.results.api.v1.CreateCacheEntryRequest
 */
@@ -5,7 +5,7 @@ import {
    FinalizeCacheEntryUploadResponse,
    GetCacheEntryDownloadURLRequest,
    GetCacheEntryDownloadURLResponse,
-  } from "./cache";
+  } from "./cache.js";
  
  //==================================//
  //          Client Code             //
@@ -11,7 +11,7 @@ import type { PartialMessage } from "@protobuf-ts/runtime";
 import { reflectionMergePartial } from "@protobuf-ts/runtime";
 import { MESSAGE_TYPE } from "@protobuf-ts/runtime";
 import { MessageType } from "@protobuf-ts/runtime";
-import { CacheScope } from "./cachescope";
+import { CacheScope } from "./cachescope.js";
 /**
 * @generated from protobuf message github.actions.results.entities.v1.CacheMetadata
 */
@@ -7,8 +7,8 @@ import {
 } from '@actions/http-client/lib/interfaces'
 import * as fs from 'fs'
 import {URL} from 'url'
-import * as utils from './cacheUtils'
-import {uploadCacheArchiveSDK} from './uploadUtils'
+import * as utils from './cacheUtils.js'
+import {uploadCacheArchiveSDK} from './uploadUtils.js'
 import {
  ArtifactCacheEntry,
  InternalCacheOptions,
@@ -17,25 +17,25 @@ import {
  ReserveCacheResponse,
  ITypedResponseWithError,
  ArtifactCacheList
-} from './contracts'
+} from './contracts.js'
 import {
  downloadCacheHttpClient,
  downloadCacheHttpClientConcurrent,
  downloadCacheStorageSDK
-} from './downloadUtils'
+} from './downloadUtils.js'
 import {
  DownloadOptions,
  UploadOptions,
  getDownloadOptions,
  getUploadOptions
-} from '../options'
+} from '../options.js'
 import {
  isSuccessStatusCode,
  retryHttpClientResponse,
  retryTypedResponse
-} from './requestUtils'
-import {getCacheServiceURL} from './config'
-import {getUserAgentString} from './shared/user-agent'
+} from './requestUtils.js'
+import {getCacheServiceURL} from './config.js'
+import {getUserAgentString} from './shared/user-agent.js'

 function getCacheApiUrl(resource: string): string {
  const baseUrl: string = getCacheServiceURL()
@@ -11,7 +11,7 @@ import {
  CacheFilename,
  CompressionMethod,
  GnuTarPathOnWindows
-} from './constants'
+} from './constants.js'

 const versionSalt = '1.0'

@@ -1,4 +1,4 @@
-import {CompressionMethod} from './constants'
+import {CompressionMethod} from './constants.js'
 import {TypedResponse} from '@actions/http-client/lib/interfaces'
 import {HttpClientError} from '@actions/http-client'

@@ -7,12 +7,10 @@ import * as fs from 'fs'
 import * as stream from 'stream'
 import * as util from 'util'

-import * as utils from './cacheUtils'
-import {SocketTimeout} from './constants'
-import {DownloadOptions} from '../options'
-import {retryHttpClientResponse} from './requestUtils'
-
-import {AbortController} from '@azure/abort-controller'
+import * as utils from './cacheUtils.js'
+import {SocketTimeout} from './constants.js'
+import {DownloadOptions} from '../options.js'
+import {retryHttpClientResponse} from './requestUtils.js'

 /**
 * Pipes the body of a HTTP response to a stream
@@ -4,8 +4,8 @@ import {
  HttpClientError,
  HttpClientResponse
 } from '@actions/http-client'
-import {DefaultRetryDelay, DefaultRetryAttempts} from './constants'
-import {ITypedResponseWithError} from './contracts'
+import {DefaultRetryDelay, DefaultRetryAttempts} from './constants.js'
+import {ITypedResponseWithError} from './contracts.js'

 export function isSuccessStatusCode(statusCode?: number): boolean {
  if (!statusCode) {
@@ -1,12 +1,12 @@
-import {info, debug} from '@actions/core'
-import {getUserAgentString} from './user-agent'
-import {NetworkError, UsageError} from './errors'
-import {getCacheServiceURL} from '../config'
-import {getRuntimeToken} from '../cacheUtils'
+import {info, debug, warning} from '@actions/core'
+import {getUserAgentString} from './user-agent.js'
+import {NetworkError, RateLimitError, UsageError} from './errors.js'
+import {getCacheServiceURL} from '../config.js'
+import {getRuntimeToken} from '../cacheUtils.js'
 import {BearerCredentialHandler} from '@actions/http-client/lib/auth'
 import {HttpClient, HttpClientResponse, HttpCodes} from '@actions/http-client'
-import {CacheServiceClientJSON} from '../../generated/results/api/v1/cache.twirp-client'
-import {maskSecretUrls} from './util'
+import {CacheServiceClientJSON} from '../../generated/results/api/v1/cache.twirp-client.js'
+import {maskSecretUrls} from './util.js'

 // The twirp http client must implement this interface
 interface Rpc {
@@ -109,6 +109,21 @@ class CacheServiceClient implements Rpc {

          errorMessage = `${errorMessage}: ${body.msg}`
        }
+
+        // Handle rate limiting - don't retry, just warn and exit
+        // For more info, see https://docs.github.com/en/actions/reference/limits
+        if (statusCode === HttpCodes.TooManyRequests) {
+          const retryAfterHeader = response.message.headers['retry-after']
+          if (retryAfterHeader) {
+            const parsedSeconds = parseInt(retryAfterHeader, 10)
+            if (!isNaN(parsedSeconds) && parsedSeconds > 0) {
+              warning(
+                `You've hit a rate limit, your rate limit will reset in ${parsedSeconds} seconds`
+              )
+            }
+          }
+          throw new RateLimitError(`Rate limited: ${errorMessage}`)
+        }
      } catch (error) {
        if (error instanceof SyntaxError) {
          debug(`Raw Body: ${rawBody}`)
@@ -118,6 +133,10 @@ class CacheServiceClient implements Rpc {
          throw error
        }

+        if (error instanceof RateLimitError) {
+          throw error
+        }
+
        if (NetworkError.isNetworkErrorCode(error?.code)) {
          throw new NetworkError(error?.code)
        }
@@ -162,8 +181,7 @@ class CacheServiceClient implements Rpc {
      HttpCodes.BadGateway,
      HttpCodes.GatewayTimeout,
      HttpCodes.InternalServerError,
-      HttpCodes.ServiceUnavailable,
-      HttpCodes.TooManyRequests
+      HttpCodes.ServiceUnavailable
    ]

    return retryableStatusCodes.includes(statusCode)
@@ -60,7 +60,7 @@ export class NetworkError extends Error {

 export class UsageError extends Error {
  constructor() {
-    const message = `Cache storage quota has been hit. Unable to upload any new cache entries. Usage is recalculated every 6-12 hours.\nMore info on storage limits: https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#calculating-minute-and-storage-spending`
+    const message = `Cache storage quota has been hit. Unable to upload any new cache entries.\nMore info on storage limits: https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions#calculating-minute-and-storage-spending`
    super(message)
    this.name = 'UsageError'
  }
@@ -70,3 +70,10 @@ export class UsageError extends Error {
    return msg.includes('insufficient usage')
  }
 }
+
+export class RateLimitError extends Error {
+  constructor(message: string) {
+    super(message)
+    this.name = 'RateLimitError'
+  }
+}
@@ -0,0 +1,7 @@
+// This file exists as a CommonJS module to read the version from package.json.
+// In an ESM package, using `require()` directly in .ts files requires disabling
+// ESLint rules and doesn't work reliably across all Node.js versions.
+// By keeping this as a .cjs file, we can use require() naturally and export
+// the version for the ESM modules to import.
+const packageJson = require('../../../package.json')
+module.exports = { version: packageJson.version }
@@ -1,9 +1,8 @@
-// eslint-disable-next-line @typescript-eslint/no-var-requires, @typescript-eslint/no-require-imports
-const packageJson = require('../../../package.json')
+import {version} from './package-version.cjs'

 /**
 * Ensure that this User Agent String is used in all HTTP calls so that we can monitor telemetry between different versions of this package
 */
 export function getUserAgentString(): string {
-  return `@actions/cache-${packageJson.version}`
+  return `@actions/cache-${version}`
 }
@@ -2,15 +2,15 @@ import {exec} from '@actions/exec'
 import * as io from '@actions/io'
 import {existsSync, writeFileSync} from 'fs'
 import * as path from 'path'
-import * as utils from './cacheUtils'
-import {ArchiveTool} from './contracts'
+import * as utils from './cacheUtils.js'
+import {ArchiveTool} from './contracts.js'
 import {
  CompressionMethod,
  SystemTarPathOnWindows,
  ArchiveToolType,
  TarFilename,
  ManifestFilename
-} from './constants'
+} from './constants.js'

 const IS_WINDOWS = process.platform === 'win32'

@@ -6,8 +6,8 @@ import {
  BlockBlobParallelUploadOptions
 } from '@azure/storage-blob'
 import {TransferProgressEvent} from '@azure/core-rest-pipeline'
-import {InvalidResponseError} from './shared/errors'
-import {UploadOptions} from '../options'
+import {InvalidResponseError} from './shared/errors.js'
+import {UploadOptions} from '../options.js'

 /**
 * Class for tracking the upload state and displaying stats.
@@ -4,6 +4,8 @@
    "baseUrl": "./",
    "outDir": "./lib",
    "rootDir": "./src",
+    "module": "node16",
+    "moduleResolution": "node16",
    "lib": [
      "es6",
      "dom"
@@ -1,70 +1,103 @@
 # @actions/core Releases

+## 3.0.1
+
+- Bump `undici` from `6.23.0` to `6.24.1` [#2348](https://github.com/actions/toolkit/pull/2348)
+
+## 3.0.0
+
+- **Breaking change**: Package is now ESM-only
+  - CommonJS consumers must use dynamic `import()` instead of `require()`
+
+## 2.0.3
+
+- Bump `@actions/http-client` to `3.0.2`
+
 ## 2.0.1
+
 - Bump @actions/exec from 1.1.1 to 2.0.0 [#2199](https://github.com/actions/toolkit/pull/2199)

 ## 2.0.0
+
 - Add support for Node 24 [#2110](https://github.com/actions/toolkit/pull/2110)
 - Bump @actions/http-client from 2.0.1 to 3.0.0

 ## 1.11.1
+
 - Fix uses of `crypto.randomUUID` on Node 18 and earlier [#1842](https://github.com/actions/toolkit/pull/1842)

 ### 1.11.0
+
 - Add platform info utilities [#1551](https://github.com/actions/toolkit/pull/1551)
 - Remove dependency on `uuid` package [#1824](https://github.com/actions/toolkit/pull/1824)

 ### 1.10.1
+
 - Fix error message reference in oidc utils [#1511](https://github.com/actions/toolkit/pull/1511)

 ### 1.10.0
+
 - `saveState` and `setOutput` now use environment files if available [#1178](https://github.com/actions/toolkit/pull/1178)
 - `getMultilineInput` now correctly trims whitespace by default [#1185](https://github.com/actions/toolkit/pull/1185)

 ### 1.9.1
+
 - Randomize delimiter when calling `core.exportVariable`

 ### 1.9.0
+
 - Added `toPosixPath`, `toWin32Path` and `toPlatformPath` utilities [#1102](https://github.com/actions/toolkit/pull/1102)

 ### 1.8.2
+
 - Update to v2.0.1 of `@actions/http-client` [#1087](https://github.com/actions/toolkit/pull/1087)

 ### 1.8.1
+
 - Update to v2.0.0 of `@actions/http-client`

 ### 1.8.0
+
 - Deprecate `markdownSummary` extension export in favor of `summary`
-  - https://github.com/actions/toolkit/pull/1072
-  - https://github.com/actions/toolkit/pull/1073
+  - <https://github.com/actions/toolkit/pull/1072>
+  - <https://github.com/actions/toolkit/pull/1073>

 ### 1.7.0
+
 - [Added `markdownSummary` extension](https://github.com/actions/toolkit/pull/1014)

 ### 1.6.0
+
 - [Added OIDC Client function `getIDToken`](https://github.com/actions/toolkit/pull/919)
- [Added `file` parameter to `AnnotationProperties`](https://github.com/actions/toolkit/pull/896) 
+- [Added `file` parameter to `AnnotationProperties`](https://github.com/actions/toolkit/pull/896)

 ### 1.5.0
+
 - [Added support for notice annotations and more annotation fields](https://github.com/actions/toolkit/pull/855)

 ### 1.4.0
+
 - [Added the `getMultilineInput` function](https://github.com/actions/toolkit/pull/829)

 ### 1.3.0
+
 - [Added the trimWhitespace option to getInput](https://github.com/actions/toolkit/pull/802)
 - [Added the getBooleanInput function](https://github.com/actions/toolkit/pull/725)

 ### 1.2.7
+
 - [Prepend newline for set-output](https://github.com/actions/toolkit/pull/772)

 ### 1.2.6
+
 - [Update `exportVariable` and `addPath` to use environment files](https://github.com/actions/toolkit/pull/571)

 ### 1.2.5
+
 - [Correctly bundle License File with package](https://github.com/actions/toolkit/pull/548)

 ### 1.2.4
+
 - [Be more lenient in accepting non-string command inputs](https://github.com/actions/toolkit/pull/405)
 - [Add Echo commands](https://github.com/actions/toolkit/pull/411)

@@ -85,7 +118,7 @@

 - saveState and getState functions for wrapper tasks (on finally entry points that run post job)

-### 1.1.3 
+### 1.1.3

 - setSecret added to register a secret with the runner to be masked from the logs
 - exportSecret which was not implemented and never worked was removed after clarification from product.
@@ -1,4 +1,4 @@
-import * as command from '../src/command'
+import * as command from '../src/command.js'
 import * as os from 'os'

 /* eslint-disable @typescript-eslint/unbound-method */
@@ -1,9 +1,9 @@
 import * as fs from 'fs'
 import * as os from 'os'
 import * as path from 'path'
-import * as core from '../src/core'
+import * as core from '../src/core.js'
 import {HttpClient} from '@actions/http-client'
-import {toCommandProperties} from '../src/utils'
+import {toCommandProperties} from '../src/utils.js'

 /* eslint-disable @typescript-eslint/unbound-method */

@@ -677,5 +677,8 @@ describe('oidc-client-tests', () => {
    const http = new HttpClient('actions/oidc-client')
    const res = await http.get(getTokenEndPoint())
    expect(res.message.statusCode).toBe(200)
+    // Consume the response to close the socket
+    await res.readBody()
+    res.message.destroy()
  })
 })
@@ -1,6 +1,6 @@
 import * as path from 'path'

-import {toPlatformPath, toPosixPath, toWin32Path} from '../src/path-utils'
+import {toPlatformPath, toPosixPath, toWin32Path} from '../src/path-utils.js'

 describe('#toPosixPath', () => {
  const cases: {
@@ -1,5 +1,5 @@
 import os from 'os'
-import {platform} from '../src/core'
+import {platform} from '../src/core.js'

 describe('getInfo', () => {
  it('returns the platform info', async () => {
@@ -1,7 +1,7 @@
 import * as fs from 'fs'
 import * as os from 'os'
 import path from 'path'
-import {summary, SUMMARY_ENV_VAR} from '../src/summary'
+import {summary, SUMMARY_ENV_VAR} from '../src/summary.js'

 const testDirectoryPath = path.join(__dirname, 'test')
 const testFilePath = path.join(testDirectoryPath, 'test-summary.md')
@@ -1,61 +1,55 @@
 {
  "name": "@actions/core",
-  "version": "2.0.1",
+  "version": "3.0.1",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "@actions/core",
-      "version": "2.0.1",
+      "version": "3.0.1",
      "license": "MIT",
      "dependencies": {
-        "@actions/exec": "^2.0.0",
-        "@actions/http-client": "^3.0.0"
+        "@actions/exec": "^3.0.0",
+        "@actions/http-client": "^4.0.0"
      },
      "devDependencies": {
-        "@types/node": "^16.18.112"
+        "@types/node": "^25.1.0"
      }
    },
    "node_modules/@actions/exec": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-2.0.0.tgz",
-      "integrity": "sha512-k8ngrX2voJ/RIN6r9xB82NVqKpnMRtxDoiO+g3olkIUpQNqjArXrCQceduQZCQj3P3xm32pChRLqRrtXTlqhIw==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-3.0.0.tgz",
+      "integrity": "sha512-6xH/puSoNBXb72VPlZVm7vQ+svQpFyA96qdDBvhB8eNZOE8LtPf9L4oAsfzK/crCL8YZ+19fKYVnM63Sl+Xzlw==",
      "license": "MIT",
      "dependencies": {
-        "@actions/io": "^2.0.0"
+        "@actions/io": "^3.0.2"
      }
    },
    "node_modules/@actions/http-client": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-3.0.0.tgz",
-      "integrity": "sha512-1s3tXAfVMSz9a4ZEBkXXRQD4QhY3+GAsWSbaYpeknPOKEeyRiU3lH+bHiLMZdo2x/fIeQ/hscL1wCkDLVM2DZQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-4.0.0.tgz",
+      "integrity": "sha512-QuwPsgVMsD6qaPD57GLZi9sqzAZCtiJT8kVBCDpLtxhL5MydQ4gS+DrejtZZPdIYyB1e95uCK9Luyds7ybHI3g==",
      "license": "MIT",
      "dependencies": {
        "tunnel": "^0.0.6",
-        "undici": "^5.28.5"
+        "undici": "^6.23.0"
      }
    },
    "node_modules/@actions/io": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/io/-/io-2.0.0.tgz",
-      "integrity": "sha512-Jv33IN09XLO+0HS79aaODsvIRyduiF7NY/F6LYeK5oeUmrsz7aFdRphQjFoESF4jS7lMauDOttKALcpapVDIAg==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@actions/io/-/io-3.0.2.tgz",
+      "integrity": "sha512-nRBchcMM+QK1pdjO7/idu86rbJI5YHUKCvKs0KxnSYbVe3F51UfGxuZX4Qy/fWlp6l7gWFwIkrOzN+oUK03kfw==",
      "license": "MIT"
    },
-    "node_modules/@fastify/busboy": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
-      "integrity": "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=14"
-      }
-    },
    "node_modules/@types/node": {
-      "version": "16.18.126",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.18.126.tgz",
-      "integrity": "sha512-OTcgaiwfGFBKacvfwuHzzn1KLxH/er8mluiy8/uM3sGXHaRe73RrSIj01jow9t4kJEW633Ov+cOexXeiApTyAw==",
+      "version": "25.1.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.1.0.tgz",
+      "integrity": "sha512-t7frlewr6+cbx+9Ohpl0NOTKXZNV9xHRmNOvql47BFJKcEG1CxtxlPEEe+gR9uhVWM4DwhnvTF110mIL4yP9RA==",
      "dev": true,
-      "license": "MIT"
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~7.16.0"
+      }
    },
    "node_modules/tunnel": {
      "version": "0.0.6",
@@ -67,16 +61,20 @@
      }
    },
    "node_modules/undici": {
-      "version": "5.29.0",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
-      "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-6.24.1.tgz",
+      "integrity": "sha512-sC+b0tB1whOCzbtlx20fx3WgCXwkW627p4EA9uM+/tNNPkSS+eSEld6pAs9nDv7WbY1UUljBMYPtu9BCOrCWKA==",
      "license": "MIT",
-      "dependencies": {
-        "@fastify/busboy": "^2.0.0"
-      },
      "engines": {
-        "node": ">=14.0"
+        "node": ">=18.17"
      }
+    },
+    "node_modules/undici-types": {
+      "version": "7.16.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
+      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
+      "dev": true,
+      "license": "MIT"
    }
  }
 }
@@ -1,6 +1,6 @@
 {
  "name": "@actions/core",
-  "version": "2.0.1",
+  "version": "3.0.1",
  "description": "Actions core lib",
  "keywords": [
    "github",
@@ -9,8 +9,15 @@
  ],
  "homepage": "https://github.com/actions/toolkit/tree/main/packages/core",
  "license": "MIT",
+  "type": "module",
  "main": "lib/core.js",
  "types": "lib/core.d.ts",
+  "exports": {
+    ".": {
+      "types": "./lib/core.d.ts",
+      "import": "./lib/core.js"
+    }
+  },
  "directories": {
    "lib": "lib",
    "test": "__tests__"
@@ -36,10 +43,10 @@
    "url": "https://github.com/actions/toolkit/issues"
  },
  "dependencies": {
-    "@actions/exec": "^2.0.0",
-    "@actions/http-client": "^3.0.0"
+    "@actions/exec": "^3.0.0",
+    "@actions/http-client": "^4.0.0"
  },
  "devDependencies": {
-    "@types/node": "^16.18.112"
+    "@types/node": "^25.1.0"
  }
 }
@@ -1,5 +1,5 @@
 import * as os from 'os'
-import {toCommandValue} from './utils'
+import {toCommandValue} from './utils.js'

 // For internal use, subject to change.

@@ -1,11 +1,11 @@
-import {issue, issueCommand} from './command'
-import {issueFileCommand, prepareKeyValueMessage} from './file-command'
-import {toCommandProperties, toCommandValue} from './utils'
+import {issue, issueCommand} from './command.js'
+import {issueFileCommand, prepareKeyValueMessage} from './file-command.js'
+import {toCommandProperties, toCommandValue} from './utils.js'

 import * as os from 'os'
 import * as path from 'path'

-import {OidcClient} from './oidc-utils'
+import {OidcClient} from './oidc-utils.js'

 /**
 * Interface for getInput options
@@ -400,19 +400,19 @@ export async function getIDToken(aud?: string): Promise<string> {
 /**
 * Summary exports
 */
-export {summary} from './summary'
+export {summary} from './summary.js'

 /**
 * @deprecated use core.summary
 */
-export {markdownSummary} from './summary'
+export {markdownSummary} from './summary.js'

 /**
 * Path exports
 */
-export {toPosixPath, toWin32Path, toPlatformPath} from './path-utils'
+export {toPosixPath, toWin32Path, toPlatformPath} from './path-utils.js'

 /**
 * Platform utilities exports
 */
-export * as platform from './platform'
+export * as platform from './platform.js'
@@ -6,7 +6,7 @@
 import * as crypto from 'crypto'
 import * as fs from 'fs'
 import * as os from 'os'
-import {toCommandValue} from './utils'
+import {toCommandValue} from './utils.js'

 export function issueFileCommand(command: string, message: any): void {
  const filePath = process.env[`GITHUB_${command}`]
@@ -3,7 +3,7 @@ import * as actions_http_client from '@actions/http-client'
 import {RequestOptions} from '@actions/http-client/lib/interfaces'
 import {HttpClient} from '@actions/http-client'
 import {BearerCredentialHandler} from '@actions/http-client/lib/auth'
-import {debug, setSecret} from './core'
+import {debug, setSecret} from './core.js'
 interface TokenResponse {
  value?: string
 }
@@ -1,8 +1,8 @@
 // We use any as a valid input type
 /* eslint-disable @typescript-eslint/no-explicit-any */

-import {AnnotationProperties} from './core'
-import {CommandProperties} from './command'
+import {AnnotationProperties} from './core.js'
+import {CommandProperties} from './command.js'

 /**
 * Sanitizes an input into a string so it can be passed into issueCommand safely
@@ -4,7 +4,9 @@
    "baseUrl": "./",
    "outDir": "./lib",
    "declaration": true,
-    "rootDir": "./src"
+    "rootDir": "./src",
+    "module": "node16",
+    "moduleResolution": "node16"
  },
  "include": [
    "./src"
--- a/Show More
+++ b/Show More