style: remove updater narrative comments

Route pnpm 12-only versions and ranges through the plain pnpm native package while preserving the existing Node and @pnpm/exe bootstrap paths for older releases.

.github/workflows/test.yaml

@@ -27,6 +27,12 @@ jobs:
           - name: 'ubuntu / v10.33.0'
             os: ubuntu-latest
             version: '10.33.0'
+          - name: 'ubuntu / v11.25.0'
+            os: ubuntu-latest
+            version: '11.25.0'
+          - name: 'ubuntu / v12.3.4'
+            os: ubuntu-latest
+            version: '12.3.4'
           - name: 'ubuntu / v9.15.5 / custom-dest'
             os: ubuntu-latest
             version: '9.15.5'
@@ -34,9 +40,15 @@ jobs:
           - name: 'macos / v9.15.5'
             os: macos-latest
             version: '9.15.5'
+          - name: 'macos / v12.3.4'
+            os: macos-latest
+            version: '12.3.4'
           - name: 'windows / v9.15.5'
             os: windows-latest
             version: '9.15.5'
+          - name: 'windows / v12.3.4'
+            os: windows-latest
+            version: '12.3.4'
 
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
@@ -166,26 +178,42 @@ jobs:
         shell: bash
 
   standalone:
-    name: Standalone mode
+    name: 'Native pnpm bootstrap (npm 12)'
 
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          persist-credentials: false
 
-      - name: Run the action
+      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version: 26
+
+      - name: Use npm 12
+        run: |
+          npm install --global npm@12.0.2
+          test "$(npm --version)" = "12.0.2"
+
+      - id: pnpm
+        name: Run the action
         uses: ./
         with:
-          version: 9.15.0
+          version: 12
           standalone: true
 
       - name: 'Test: pnpm works'
+        env:
+          PNPM_DEST: ${{ steps.pnpm.outputs.dest }}
         run: |
           set -e
+          test -x "$PNPM_DEST/node_modules/pnpm/pnpm"
+          test ! -d "$PNPM_DEST/node_modules/@pnpm/exe"
           which pnpm
           actual="$(pnpm --version)"
-          if [ "${actual}" != "9.15.0" ]; then
-            echo "Expected 9.15.0, got ${actual}"
+          if [ "${actual}" != "12.3.4" ]; then
+            echo "Expected 12.3.4, got ${actual}"
             exit 1
           fi
           mkdir /tmp/test-standalone

README.md

@@ -1,9 +1,11 @@
 > [!IMPORTANT]
-> **This action has a successor: [`pnpm/setup`](https://github.com/pnpm/setup).**
+> **This action supports pnpm v12 and earlier.**
 >
-> For pnpm v11 and newer, use [`pnpm/setup`](https://github.com/pnpm/setup) instead. It downloads pnpm's self-contained release binary (no Node.js or npm required) and can install a JavaScript runtime (Node.js, Bun, or Deno) in the same step, replacing `actions/setup-node`.
+> For pnpm v11 and newer, [`pnpm/setup`](https://github.com/pnpm/setup) is also available. It downloads pnpm's self-contained release binary (no Node.js or npm required) and can install a JavaScript runtime (Node.js, Bun, or Deno) in the same step, replacing `actions/setup-node` when its feature set fits your workflow.
 >
-> `pnpm/action-setup` remains the action to use for installing pnpm v10 and older. See [Migrating to pnpm/setup](#migrating-to-pnpmsetup) below.
+> You can continue using `pnpm/action-setup` with `actions/setup-node`, including for pnpm v11 and v12. See [Using pnpm/setup instead](#using-pnpmsetup-instead) below if you want a single action to install pnpm and a JavaScript runtime.
+>
+> `pnpm/setup` cannot install pnpm v11 on Intel macOS (`darwin-x64`), where no standalone pnpm v11 binary is published. On that platform, run `actions/setup-node` with Node.js 22.13 or newer before `pnpm/action-setup`, or upgrade to pnpm v12.
 
 # Setup pnpm
 
@@ -13,7 +15,7 @@ Install pnpm package manager.
 >
 > The v2 version of this action [has stopped working](https://github.com/pnpm/action-setup/issues/135) with newer Node.js versions. Please, upgrade to the latest version to fix any issues.
 
-## Migrating to pnpm/setup
+## Using pnpm/setup instead
 
 [`pnpm/setup`](https://github.com/pnpm/setup) installs pnpm v11+ as a native standalone executable and can install Node.js, Bun, or Deno in the same step, so a typical workflow no longer needs `actions/setup-node` or an explicit `pnpm install` step:
 
@@ -106,9 +108,9 @@ If `run_install` is a YAML string representation of either an object or an array
 
 ### `standalone`
 
-**Optional** (_type:_ `boolean`, _default:_ `false`) When set to true, [@pnpm/exe](https://www.npmjs.com/package/@pnpm/exe), which is a Node.js bundled package, will be installed, enabling using `pnpm` without Node.js.
+**Optional** (_type:_ `boolean`, _default:_ `false`) For pnpm v11 and earlier, install [@pnpm/exe](https://www.npmjs.com/package/@pnpm/exe), enabling pnpm to run without Node.js.
 
-This is useful when you want to use a incompatible pair of Node.js and pnpm.
+For pnpm v12, this input has no effect because the plain `pnpm` package already installs a standalone native executable.
 
 ## Outputs
 
@@ -237,7 +239,7 @@ jobs:
 
 ## Notes
 
-This action does not set up Node.js. Use [actions/setup-node](https://github.com/actions/setup-node) yourself. If you are on pnpm v11 or newer, [`pnpm/setup`](https://github.com/pnpm/setup) can install pnpm and Node.js in a single step.
+This action does not set up Node.js. Use [actions/setup-node](https://github.com/actions/setup-node) yourself. As an alternative for pnpm v11 or newer, [`pnpm/setup`](https://github.com/pnpm/setup) can install pnpm and Node.js in a single step.
 
 ## License
 

action.yml

@@ -28,7 +28,7 @@ inputs:
     required: false
     default: 'package.json'
   standalone:
-    description: When set to true, @pnpm/exe, which is a Node.js bundled package, will be installed, enabling using pnpm without Node.js.
+    description: When set to true for pnpm v11 and earlier, install @pnpm/exe to use pnpm without Node.js. pnpm v12 uses the plain pnpm package's native executable.
     required: false
     default: 'false'
 outputs:

package.json

@@ -14,10 +14,12 @@
     "@types/expand-tilde": "^2.0.2",
     "@types/node": "^22.0.0",
     "expand-tilde": "^2.0.2",
+    "semver": "^7.8.5",
     "yaml": "^2.3.4",
     "zod": "^3.22.4"
   },
   "devDependencies": {
+    "@types/semver": "^7.8.0",
     "esbuild": "^0.27.4",
     "typescript": "^5.3.3"
   }

pnpm-lock.yaml

@@ -29,6 +29,9 @@ importers:
       expand-tilde:
         specifier: ^2.0.2
         version: 2.0.2
+      semver:
+        specifier: ^7.8.5
+        version: 7.8.5
       yaml:
         specifier: ^2.3.4
         version: 2.7.0
@@ -36,6 +39,9 @@ importers:
         specifier: ^3.22.4
         version: 3.24.1
     devDependencies:
+      '@types/semver':
+        specifier: ^7.8.0
+        version: 7.8.0
       esbuild:
         specifier: ^0.27.4
         version: 0.27.4
@@ -293,6 +299,9 @@ packages:
   '@types/node@22.19.11':
     resolution: {integrity: sha512-BH7YwL6rA93ReqeQS1c4bsPpcfOmJasG+Fkr6Y59q83f9M1WcBRHR2vM+P9eOisYRcN3ujQoiZY8uk5W+1WL8w==}
 
+  '@types/semver@7.8.0':
+    resolution: {integrity: sha512-1mAINjtQCXXeLkJ9ehXkwOcBpqtLxiVtKhpUf83DdRNdQKV0iXZpaHYqRr7nj+wvxuJzoAmAwXI+sCNMv1CzLQ==}
+
   '@typespec/ts-http-runtime@0.3.0':
     resolution: {integrity: sha512-sOx1PKSuFwnIl7z4RN0Ls7N9AQawmR9r66eI5rFCzLDIs8HTIYrIpH9QjYWoX0lkgGrkLxXhi4QnK7MizPRrIg==}
     engines: {node: '>=20.0.0'}
@@ -463,6 +472,11 @@ packages:
     resolution: {integrity: sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==}
     hasBin: true
 
+  semver@7.8.5:
+    resolution: {integrity: sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==}
+    engines: {node: '>=10'}
+    hasBin: true
+
   strnum@2.1.1:
     resolution: {integrity: sha512-7ZvoFTiCnGxBtDqJ//Cu6fWtZtc7Y3x+QOirG15wztbdngGSkht27o2pyGWrVy0b4WAy3jbKmnoK6g5VlVNUUw==}
 
@@ -770,6 +784,8 @@ snapshots:
     dependencies:
       undici-types: 6.21.0
 
+  '@types/semver@7.8.0': {}
+
   '@typespec/ts-http-runtime@0.3.0':
     dependencies:
       http-proxy-agent: 7.0.2
@@ -957,6 +973,8 @@ snapshots:
 
   semver@6.3.1: {}
 
+  semver@7.8.5: {}
+
   strnum@2.1.1: {}
 
   tr46@0.0.3: {}

scripts/update-bootstrap.mjs

@@ -1,9 +1,5 @@
 #!/usr/bin/env node
 
-// Usage: node scripts/update-bootstrap.mjs [version]
-// If version is omitted, fetches the latest next-11 tag from npm.
-// Regenerates the bootstrap lockfiles used by action-setup to install pnpm via npm.
-
 import { execSync } from 'child_process'
 import { mkdtempSync, rmSync, readFileSync, writeFileSync } from 'fs'
 import { join } from 'path'
@@ -11,21 +7,24 @@ import { tmpdir } from 'os'
 
 const BOOTSTRAP_DIR = new URL('../src/install-pnpm/bootstrap/', import.meta.url).pathname
 
-const version = process.argv[2] || resolveLatestVersion()
+const legacyVersion = process.argv[2] || resolveLatestVersion(11)
+const nativeVersion = process.argv[3] || resolveLatestVersion(12)
 
-console.log(`Updating bootstrap lockfiles to pnpm@${version} ...`)
+console.log(`Updating bootstrap lockfiles to pnpm@${legacyVersion} and pnpm@${nativeVersion} ...`)
 
-generateLock('pnpm-lock.json', { pnpm: version }, 'bootstrap-pnpm')
-generateLock('exe-lock.json', { '@pnpm/exe': version }, 'bootstrap-exe')
+generateLock('pnpm-lock.json', { pnpm: legacyVersion }, 'bootstrap-pnpm')
+generateLock('exe-lock.json', { '@pnpm/exe': legacyVersion }, 'bootstrap-exe')
+generateLock('native-lock.json', { pnpm: nativeVersion }, 'bootstrap-native-pnpm')
 
 console.log('Done!')
 
-function resolveLatestVersion() {
-  const json = execSync('npm view @pnpm/exe dist-tags --json', { encoding: 'utf8' })
-  const tags = JSON.parse(json)
-  const version = tags['next-11'] || tags['latest']
+function resolveLatestVersion(major) {
+  const json = execSync('npm view pnpm dist-tags --json', { encoding: 'utf8' })
+  const parsed = JSON.parse(json)
+  const tags = Array.isArray(parsed) ? parsed[0] : parsed
+  const version = tags[`next-${major}`] || tags[`latest-${major}`]
   if (!version) {
-    console.error('Could not determine latest pnpm version from npm dist-tags')
+    console.error(`Could not determine latest pnpm v${major} version from npm dist-tags`)
     process.exit(1)
   }
   return version
@@ -40,7 +39,8 @@ function generateLock(filename, dependencies, name) {
     const parsed = JSON.parse(lock)
     parsed.name = name
     writeFileSync(join(BOOTSTRAP_DIR, filename), JSON.stringify(parsed, null, 2) + '\n')
-    console.log(`  ${filename} -> ${Object.values(dependencies)[0]}@${version}`)
+    const [packageName, packageVersion] = Object.entries(dependencies)[0]
+    console.log(`  ${filename} -> ${packageName}@${packageVersion}`)
   } finally {
     rmSync(tmp, { recursive: true, force: true })
   }

src/install-pnpm/bootstrap/exe-lock.json

@@ -5,13 +5,13 @@
   "packages": {
     "": {
       "dependencies": {
-        "@pnpm/exe": "11.19.0"
+        "@pnpm/exe": "11.25.0"
       }
     },
     "node_modules/@pnpm/exe": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/exe/-/exe-11.19.0.tgz",
-      "integrity": "sha512-P1mw8BZaNkEpttlyzKsxTj7PVs94bMB4cQ8pJhgbrCTSBP7xCzKS3VlOwIInS7aS5by6KAbfO5Vs9yK/ekugrg==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe/-/exe-11.25.0.tgz",
+      "integrity": "sha512-X19R2uC+VAJ4UJQE9c/PCdOXbDaWnZtad7WUrTHBFQuMVaK9MAHbyO/WgahQCuRtTmJkLbxcWKKCk+JeTYFm/g==",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
@@ -28,19 +28,19 @@
         "url": "https://opencollective.com/pnpm"
       },
       "optionalDependencies": {
-        "@pnpm/linux-arm64": "11.19.0",
-        "@pnpm/linux-x64": "11.19.0",
-        "@pnpm/linuxstatic-arm64": "11.19.0",
-        "@pnpm/linuxstatic-x64": "11.19.0",
-        "@pnpm/macos-arm64": "11.19.0",
-        "@pnpm/win-arm64": "11.19.0",
-        "@pnpm/win-x64": "11.19.0"
+        "@pnpm/linux-arm64": "11.25.0",
+        "@pnpm/linux-x64": "11.25.0",
+        "@pnpm/linuxstatic-arm64": "11.25.0",
+        "@pnpm/linuxstatic-x64": "11.25.0",
+        "@pnpm/macos-arm64": "11.25.0",
+        "@pnpm/win-arm64": "11.25.0",
+        "@pnpm/win-x64": "11.25.0"
       }
     },
     "node_modules/@pnpm/linux-arm64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/linux-arm64/-/linux-arm64-11.19.0.tgz",
-      "integrity": "sha512-c5AJqnsj0BMqMCOtctOzsCqyfY+afFe1kdM9F2FrNhYwtnQRMHoJy+51qfee4yuTPOVRyk3Yh1dwvyAadiznvA==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/linux-arm64/-/linux-arm64-11.25.0.tgz",
+      "integrity": "sha512-ra8akqhzsbcOhKSJ9fFV8H+Oc9uGQAcp/XmIBEdT+8hPPoZCit3+RNCHmg8bLoNvpSLtRvZE0WFCMj7WyzxeBA==",
       "cpu": [
         "arm64"
       ],
@@ -54,9 +54,9 @@
       }
     },
     "node_modules/@pnpm/linux-x64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/linux-x64/-/linux-x64-11.19.0.tgz",
-      "integrity": "sha512-KOKpA9o75SvmRQgWO+EqEpQzJg1b9uHk5y61PAx90sSpdYtKDPua2eBXBglzv8YK1xM3DsYXFEf7Scs+3HeDsA==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/linux-x64/-/linux-x64-11.25.0.tgz",
+      "integrity": "sha512-pQl/L10diKQCbF73viRrtVU8qVWMTudUCSG1uZ+EWBNKtU9Sbxe6Q378diXDb1uTwSgUVMQoypxlC1MTzh7qvQ==",
       "cpu": [
         "x64"
       ],
@@ -70,9 +70,9 @@
       }
     },
     "node_modules/@pnpm/linuxstatic-arm64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/linuxstatic-arm64/-/linuxstatic-arm64-11.19.0.tgz",
-      "integrity": "sha512-Ci9WxgCInZc3F43R6BfaHevi+dYqaI5CLi6421egFsK649eHvYPytvu+zABhTNlYGNJbD8j9w+AUYInz/TPsyQ==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/linuxstatic-arm64/-/linuxstatic-arm64-11.25.0.tgz",
+      "integrity": "sha512-cYcrbB/xN1N6/5VUlFuHblb1gNyJgZv1CF5Pk1T0sHJxQMY4DFJV3OqHVAgahxyUfSTaQcVLvH1H2JFvd/+sgw==",
       "cpu": [
         "arm64"
       ],
@@ -89,9 +89,9 @@
       }
     },
     "node_modules/@pnpm/linuxstatic-x64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/linuxstatic-x64/-/linuxstatic-x64-11.19.0.tgz",
-      "integrity": "sha512-GNMk96vNJ4uEWigekarjHofXNDFsTYRL0Mw2YlDkv/W+u0cn/UAVPHfd5aAfsf6Arel2ZQfxPUTXlpunFujWnA==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/linuxstatic-x64/-/linuxstatic-x64-11.25.0.tgz",
+      "integrity": "sha512-HXDtaeQod16DDMUUcVLIMxvEc1jKn7IYsNPwbwAPs/Je/d3umRPJi3Ejjdn6e9qpXN6Oon+yvSsJr7B9oDt6KA==",
       "cpu": [
         "x64"
       ],
@@ -108,9 +108,9 @@
       }
     },
     "node_modules/@pnpm/macos-arm64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/macos-arm64/-/macos-arm64-11.19.0.tgz",
-      "integrity": "sha512-I3Ee/GQlPxEOeBSzqxBNwcTHxVebjMiN2xLdTBS6OK2TAPzbWMIExjU5brxhr8rAk73p7mbv/a/2tFC/3gl6FA==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/macos-arm64/-/macos-arm64-11.25.0.tgz",
+      "integrity": "sha512-m/eAgEqKhiSexGxWPHNXNnSRI0hudymg6K7LbrU2EoDs9IgJ28OKEz9mGxMzhkYBweEquR4k5teMNes/aToy9w==",
       "cpu": [
         "arm64"
       ],
@@ -124,9 +124,9 @@
       }
     },
     "node_modules/@pnpm/win-arm64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/win-arm64/-/win-arm64-11.19.0.tgz",
-      "integrity": "sha512-rOiWuJ9wjaFY9ZDVPGVjpvjIQHZNB72rioxvuyzDKJ7dqKQ97VF27a4rmOtjhMB5u83cdDGEJ+OY+H1+TP+frw==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/win-arm64/-/win-arm64-11.25.0.tgz",
+      "integrity": "sha512-oAeECbtZ+eJziaBmPUkwJM8Dx7KVQ5FO367AXTjD2HGfB5ob1Bcu5hoUF5RBTgDBiP9fRQ1u13uAEpqar/6NLA==",
       "cpu": [
         "arm64"
       ],
@@ -140,9 +140,9 @@
       }
     },
     "node_modules/@pnpm/win-x64": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/@pnpm/win-x64/-/win-x64-11.19.0.tgz",
-      "integrity": "sha512-l26XeTxoGxfU+mVcZ5jFdP9hNe5yrOlLPSkAlwwpXPI1iyyU4JUSxm6Jdyxu1UAU1FerD/BvLK2vrlR6d9ogag==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/@pnpm/win-x64/-/win-x64-11.25.0.tgz",
+      "integrity": "sha512-8/n+wCc0a8TRYTMFqti93Vh0cscdJ25xfMyYSDdXrLUh2ccxSFuS+SE7cNPjd/nOXoFAJvdW0kwfbyRPLa16/w==",
       "cpu": [
         "x64"
       ],

src/install-pnpm/bootstrap/native-lock.json

@@ -0,0 +1,154 @@
+{
+  "name": "bootstrap-native-pnpm",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "pnpm": "12.3.4"
+      }
+    },
+    "node_modules/@pnpm/exe.darwin-arm64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.darwin-arm64/-/exe.darwin-arm64-12.3.4.tgz",
+      "integrity": "sha512-PAyUol8T1+/+ViOiXAt51ECA+QnfXCqz6foL4bW+LsoX0NcVd5XVEM2mRQu+LV4oc7uRz9zf9U0P+XFfuQeDAw==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@pnpm/exe.darwin-x64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.darwin-x64/-/exe.darwin-x64-12.3.4.tgz",
+      "integrity": "sha512-fxP9JCk0Cdye+ePuj+GJJLMUMTqHGWRdb1dtv4How876uQ2ehxvenpgiYAir/ceO9PsYUZkFTtyZdx+rRu5QOA==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ]
+    },
+    "node_modules/@pnpm/exe.linux-arm64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.linux-arm64/-/exe.linux-arm64-12.3.4.tgz",
+      "integrity": "sha512-t71AVA7LRqiKTyZ5xMYaZc2n5DfdpMbfokZuiIOXHBOM03ECnF0t4iYwaBDqJgVjlKYUOwaF/bRQajGNA4cJ4w==",
+      "cpu": [
+        "arm64"
+      ],
+      "libc": [
+        "glibc"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@pnpm/exe.linux-arm64-musl": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.linux-arm64-musl/-/exe.linux-arm64-musl-12.3.4.tgz",
+      "integrity": "sha512-FBOt0/7ye6O6q4AllVV5QMviB6qE6fqkeczV/+MDWQsmo+QJrlfsh6X7CpH/tClVpBZEyIbjpUoT8bNhCYBxEg==",
+      "cpu": [
+        "arm64"
+      ],
+      "libc": [
+        "musl"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@pnpm/exe.linux-x64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.linux-x64/-/exe.linux-x64-12.3.4.tgz",
+      "integrity": "sha512-2ZqOlSPkfwX1h5cR+FPiWf8+F+2hZT/3TvhUK5sigHqwaQCIiq8R7CGxhndKs63JtcLi2a1Qpo+wX/EoyfjyJQ==",
+      "cpu": [
+        "x64"
+      ],
+      "libc": [
+        "glibc"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@pnpm/exe.linux-x64-musl": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.linux-x64-musl/-/exe.linux-x64-musl-12.3.4.tgz",
+      "integrity": "sha512-RPmk7Jb/aYaFvL2iyDN/AtMY+hUEsue732WmXpcuQ9tBpMnGyA5py7Z3+e+qmQaJ0zY/4ni9jJiyPBQHujmv6w==",
+      "cpu": [
+        "x64"
+      ],
+      "libc": [
+        "musl"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@pnpm/exe.win32-arm64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.win32-arm64/-/exe.win32-arm64-12.3.4.tgz",
+      "integrity": "sha512-ANyrHqyqco6SXBysUTRF74itDyyraea7IbFsKFdNXTjcFnfycTDx37EwuhdpPYFNSIh2JhUG4fByclsRfiHX7w==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
+    "node_modules/@pnpm/exe.win32-x64": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/@pnpm/exe.win32-x64/-/exe.win32-x64-12.3.4.tgz",
+      "integrity": "sha512-WH/KqBPY/hq2Tb7SgQltEZytimcjgKRaCRL/aM9CI0c67iKc5TVmHUhIiL3Ux9FB4bWn36i6XewUcScQI+zG8w==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
+    "node_modules/pnpm": {
+      "version": "12.3.4",
+      "resolved": "https://registry.npmjs.org/pnpm/-/pnpm-12.3.4.tgz",
+      "integrity": "sha512-lhqkH7B32joEpEHZ+OFevAyW2o73ELLrZ7+e58sGEOq9SPH9hfUc/+c4RnhfoPh8VqOocqHYk/hEZ0G1zORUVw==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "bin": {
+        "pn": "pn",
+        "pnpm": "pnpm",
+        "pnpx": "pnpx",
+        "pnx": "pnx"
+      },
+      "engines": {
+        "node": ">=18.*"
+      },
+      "optionalDependencies": {
+        "@pnpm/exe.darwin-arm64": "12.3.4",
+        "@pnpm/exe.darwin-x64": "12.3.4",
+        "@pnpm/exe.linux-arm64": "12.3.4",
+        "@pnpm/exe.linux-arm64-musl": "12.3.4",
+        "@pnpm/exe.linux-x64": "12.3.4",
+        "@pnpm/exe.linux-x64-musl": "12.3.4",
+        "@pnpm/exe.win32-arm64": "12.3.4",
+        "@pnpm/exe.win32-x64": "12.3.4"
+      }
+    }
+  }
+}

src/install-pnpm/bootstrap/pnpm-lock.json

@@ -5,13 +5,13 @@
   "packages": {
     "": {
       "dependencies": {
-        "pnpm": "11.19.0"
+        "pnpm": "11.25.0"
       }
     },
     "node_modules/pnpm": {
-      "version": "11.19.0",
-      "resolved": "https://registry.npmjs.org/pnpm/-/pnpm-11.19.0.tgz",
-      "integrity": "sha512-eIHz7VkNRyxKlV4riLISF5ERYGbcyIy8o4SeybYPG7qm0syyIfqR2k4cZb7yvL43k2Wup6xTnHv4be3DobItzg==",
+      "version": "11.25.0",
+      "resolved": "https://registry.npmjs.org/pnpm/-/pnpm-11.25.0.tgz",
+      "integrity": "sha512-XN6SW08HX3Jetx+64YpC/+eEUkeJ8ZthxzHLhyHsKKruFg4BqNWvT+2ypCzb8wDv4j2zVrDUoXtNY+EfirfJVg==",
       "license": "MIT",
       "bin": {
         "pn": "bin/pnpm.mjs",

src/install-pnpm/run.ts

@@ -6,11 +6,28 @@ import path from 'path'
 import util from 'util'
 import { Inputs } from '../inputs'
 import { parse as parseYaml } from 'yaml'
+import { satisfies, subset, validRange } from 'semver'
 import pnpmLock from './bootstrap/pnpm-lock.json'
 import exeLock from './bootstrap/exe-lock.json'
+import nativeLock from './bootstrap/native-lock.json'
 
-const BOOTSTRAP_PNPM_PACKAGE_JSON = JSON.stringify({ private: true, dependencies: { pnpm: pnpmLock.packages['node_modules/pnpm'].version } })
-const BOOTSTRAP_EXE_PACKAGE_JSON = JSON.stringify({ private: true, dependencies: { '@pnpm/exe': exeLock.packages['node_modules/@pnpm/exe'].version } })
+const bootstrapPnpmVersion = pnpmLock.packages['node_modules/pnpm'].version
+const bootstrapExeVersion = exeLock.packages['node_modules/@pnpm/exe'].version
+const bootstrapNativeVersion = nativeLock.packages['node_modules/pnpm'].version
+const BOOTSTRAP_PNPM_PACKAGE_JSON = JSON.stringify({
+  private: true,
+  dependencies: { pnpm: bootstrapPnpmVersion },
+})
+const BOOTSTRAP_EXE_PACKAGE_JSON = JSON.stringify({
+  private: true,
+  dependencies: { '@pnpm/exe': bootstrapExeVersion },
+  allowScripts: { [`@pnpm/exe@${bootstrapExeVersion}`]: true },
+})
+const BOOTSTRAP_NATIVE_PACKAGE_JSON = JSON.stringify({
+  private: true,
+  dependencies: { pnpm: bootstrapNativeVersion },
+  allowScripts: { [`pnpm@${bootstrapNativeVersion}`]: true },
+})
 
 export interface SelfInstallerResult {
   exitCode: number
@@ -19,18 +36,20 @@ export interface SelfInstallerResult {
 
 export async function runSelfInstaller(inputs: Inputs): Promise<SelfInstallerResult> {
   const { version, dest, packageJsonFile } = inputs
-
-  // pnpm v11 requires Node >= 22.13; use standalone (exe) bootstrap which
-  // bundles its own Node.js when the system Node is too old
-  const systemNode = await getSystemNodeVersion()
-  const standalone = inputs.standalone || systemNode.major < 22 || (systemNode.major === 22 && systemNode.minor < 13)
+  const targetVersion = readTargetVersion({ version, packageJsonFile })
+  const native = targetsPnpm12(targetVersion)
+  let standalone = false
+  if (!native) {
+    const systemNode = await getSystemNodeVersion()
+    standalone = inputs.standalone || systemNode.major < 22 || (systemNode.major === 22 && systemNode.minor < 13)
+  }
 
   // Install bootstrap pnpm via npm (integrity verified by committed lockfile)
   await rm(dest, { recursive: true, force: true })
   await mkdir(dest, { recursive: true })
 
-  const lockfile = standalone ? exeLock : pnpmLock
-  const packageJson = standalone ? BOOTSTRAP_EXE_PACKAGE_JSON : BOOTSTRAP_PNPM_PACKAGE_JSON
+  const lockfile = native ? nativeLock : standalone ? exeLock : pnpmLock
+  const packageJson = native ? BOOTSTRAP_NATIVE_PACKAGE_JSON : standalone ? BOOTSTRAP_EXE_PACKAGE_JSON : BOOTSTRAP_PNPM_PACKAGE_JSON
   await writeFile(path.join(dest, 'package.json'), packageJson)
   await writeFile(path.join(dest, 'package-lock.json'), JSON.stringify(lockfile))
 
@@ -53,9 +72,6 @@ export async function runSelfInstaller(inputs: Inputs): Promise<SelfInstallerRes
     return { exitCode: npmExitCode, binDest: path.join(dest, 'node_modules', '.bin') }
   }
 
-  // On Windows with standalone mode, npm's .bin shims can't properly
-  // execute the extensionless @pnpm/exe native binaries. Add the
-  // @pnpm/exe directory directly to PATH so pnpm.exe is found natively.
   const pnpmHome = standalone && process.platform === 'win32'
     ? path.join(dest, 'node_modules', '@pnpm', 'exe')
     : path.join(dest, 'node_modules', '.bin')
@@ -73,22 +89,28 @@ export async function runSelfInstaller(inputs: Inputs): Promise<SelfInstallerRes
     const pnpmBinLink = path.join(dest, 'node_modules', '.bin', 'pnpm')
     if (!existsSync(pnpmBinLink)) {
       await mkdir(path.join(dest, 'node_modules', '.bin'), { recursive: true })
-      const target = standalone
-        ? path.join('..', '@pnpm', 'exe', 'pnpm')
-        : path.join('..', 'pnpm', 'bin', 'pnpm.mjs')
+      const target = native
+        ? path.join('..', 'pnpm', 'pnpm')
+        : standalone
+          ? path.join('..', '@pnpm', 'exe', 'pnpm')
+          : path.join('..', 'pnpm', 'bin', 'pnpm.mjs')
       await symlink(target, pnpmBinLink)
     }
   }
 
-  const bootstrapPnpm = standalone
-    ? path.join(dest, 'node_modules', '@pnpm', 'exe', process.platform === 'win32' ? 'pnpm.exe' : 'pnpm')
-    : path.join(dest, 'node_modules', 'pnpm', 'bin', 'pnpm.mjs')
+  const bootstrapPnpm = native
+    ? path.join(dest, 'node_modules', 'pnpm', process.platform === 'win32' ? 'pnpm.exe' : 'pnpm')
+    : standalone
+      ? path.join(dest, 'node_modules', '@pnpm', 'exe', process.platform === 'win32' ? 'pnpm.exe' : 'pnpm')
+      : path.join(dest, 'node_modules', 'pnpm', 'bin', 'pnpm.mjs')
+  const bootstrapVersion = native ? bootstrapNativeVersion : standalone ? bootstrapExeVersion : bootstrapPnpmVersion
 
-  // Self-update the bootstrap to the requested pnpm version. readTargetVersion
-  // either returns a value or throws, so this always runs.
-  const targetVersion = readTargetVersion({ version, packageJsonFile })
-  const cmd = standalone ? bootstrapPnpm : process.execPath
-  const args = standalone ? ['self-update', targetVersion] : [bootstrapPnpm, 'self-update', targetVersion]
+  if (targetVersion === bootstrapVersion || (native && satisfies(bootstrapVersion, targetVersion))) {
+    return { exitCode: 0, binDest: pnpmHome }
+  }
+
+  const cmd = native || standalone ? bootstrapPnpm : process.execPath
+  const args = native || standalone ? ['self-update', targetVersion] : [bootstrapPnpm, 'self-update', targetVersion]
   const exitCode = await runCommand(cmd, args, { cwd: dest })
   if (exitCode !== 0) {
     return { exitCode, binDest: pnpmHome }
@@ -179,6 +201,12 @@ Please specify it by one of the following ways:
   - in the package.json with the key "devEngines.packageManager"`)
 }
 
+function targetsPnpm12(version: string): boolean {
+  if (version === 'latest-12' || version === 'next-12') return true
+  const range = validRange(version)
+  return range !== null && subset(range, '>=12.0.0 <13.0.0')
+}
+
 function getSystemNodeVersion(): Promise<{ major: number; minor: number }> {
   return new Promise((resolve) => {
     const cp = spawn('node', ['--version'], { stdio: ['pipe', 'pipe', 'pipe'], shell: process.platform === 'win32' })