Version Packages (#11674)

This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and the packages will
be published to npm automatically. If you're not ready to do a release
yet, that's fine, whenever you add more changesets to main, this PR will
be updated.


# Releases
## @vercel/python@4.3.0

### Minor Changes

- support newer python versions
([#11675](https://github.com/vercel/vercel/pull/11675))

## @vercel/build-utils@8.2.1

### Patch Changes

- [node] update node@16 deprecation day
([#11671](https://github.com/vercel/vercel/pull/11671))

## vercel@34.2.4

### Patch Changes

- Updated dependencies
\[[`3eb9d8c89`](3eb9d8c892),
[`83741a0eb`](83741a0eb9)]:
    -   @vercel/python@4.3.0
    -   @vercel/build-utils@8.2.1
    -   @vercel/node@3.1.6
    -   @vercel/static-build@2.5.10

## @vercel/client@13.2.8

### Patch Changes

- Updated dependencies
\[[`83741a0eb`](83741a0eb9)]:
    -   @vercel/build-utils@8.2.1

## @vercel/gatsby-plugin-vercel-builder@2.0.32

### Patch Changes

- Updated dependencies
\[[`83741a0eb`](83741a0eb9)]:
    -   @vercel/build-utils@8.2.1

## @vercel/node@3.1.6

### Patch Changes

- Updated dependencies
\[[`83741a0eb`](83741a0eb9)]:
    -   @vercel/build-utils@8.2.1

## @vercel/static-build@2.5.10

### Patch Changes

-   Updated dependencies \[]:
    -   @vercel/gatsby-plugin-vercel-builder@2.0.32

## @vercel-internals/types@1.0.37

### Patch Changes

- Updated dependencies
\[[`83741a0eb`](83741a0eb9)]:
    -   @vercel/build-utils@8.2.1

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.github/CODEOWNERS

@@ -5,13 +5,13 @@
 *                                        @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads
 /.github/workflows                       @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @ijjk
 /packages/fs-detectors                   @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @agadzik @chloetedder
-/packages/next                           @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @timneutkens @ijjk @ztanner @huozhi @Ethan-Arrowood @styfle
+/packages/next                           @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @timneutkens @ijjk @ztanner @huozhi @Ethan-Arrowood
 /packages/routing-utils                  @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @ijjk
 /packages/static-build                   @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads
 /packages/edge                           @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @vercel/compute
 /examples                                @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @leerob
 /examples/create-react-app               @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @Timer
-/examples/nextjs                         @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @timneutkens @ijjk @ztanner @huozhi @Ethan-Arrowood @styfle
+/examples/nextjs                         @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @timneutkens @ijjk @ztanner @huozhi @Ethan-Arrowood
 /packages/node                           @TooTallNate @EndangeredMassa @trek @onsclom @jeffsee55 @erikareads @Kikobeats
 
 # Unrestricted Paths

.github/dependabot.yml

@@ -63,16 +63,21 @@ updates:
     allow:
       - dependency-name: '@remix-run*'
       - dependency-name: '@shopify*'
+      - dependency-name: 'remix*'
     ignore:
       - dependency-name: '@remix-run*'
         update-types:
           ['version-update:semver-major', 'version-update:semver-patch']
+      - dependency-name: 'remix*'
+        update-types:
+          ['version-update:semver-major', 'version-update:semver-patch']
       - dependency-name: '@shopify*'
         update-types:
           ['version-update:semver-major', 'version-update:semver-patch']
     groups:
       core:
         patterns:
+          - 'remix*'
           - '@remix-run*'
           - '@shopify*'
         update-types:

.github/workflows/test-18.yml

@@ -0,0 +1,124 @@
+name: Tests Node.js v18
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - '!*'
+  pull_request:
+
+env:
+  NODE_VERSION: '18'
+  TURBO_REMOTE_ONLY: 'true'
+  TURBO_TEAM: 'vercel'
+  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  setup:
+    name: Find Changes
+    runs-on: ubuntu-latest
+    outputs:
+      tests: ${{ steps['set-tests'].outputs['tests'] }}
+      dplUrl: ${{ steps.waitForTarball.outputs.url }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: install pnpm@8.3.1
+        run: npm i -g pnpm@8.3.1
+      - run: pnpm install
+      - id: set-tests
+        run: |
+          TESTS_ARRAY=$(node utils/chunk-tests-18.js $SCRIPT_NAME)
+          echo "Files to test:"
+          echo "$TESTS_ARRAY"
+          echo "tests=$TESTS_ARRAY" >> $GITHUB_OUTPUT
+      - uses: patrickedqvist/wait-for-vercel-preview@bfdff514ff78a669f2536e9f4dd4ef5813a704a2
+        id: waitForTarball
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          max_timeout: 360
+          check_interval: 5
+  test:
+    timeout-minutes: 120
+    runs-on: ${{ matrix.runner }}
+    name: ${{matrix.scriptName}} (${{matrix.packageName}}, ${{matrix.chunkNumber}}, ${{ matrix.runner }})
+    if: ${{ needs.setup.outputs['tests'] != '[]' }}
+    needs:
+      - setup
+    strategy:
+      fail-fast: false
+      matrix:
+        include: ${{ fromJson(needs.setup.outputs['tests']) }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.nodeVersion || env.NODE_VERSION }}
+
+      # yarn 1.22.21 introduced a Corepack bug when running tests.
+      # this can be removed once https://github.com/yarnpkg/yarn/issues/9015 is resolved
+      - name: install yarn@1.22.19
+        run: npm i -g yarn@1.22.19
+
+      - name: install pnpm@8.3.1
+        run: npm i -g pnpm@8.3.1
+
+      - run: pnpm install
+
+      - name: Build ${{matrix.packageName}} and all its dependencies
+        run: node utils/gen.js && node_modules/.bin/turbo run build --cache-dir=".turbo" --log-order=stream --scope=${{matrix.packageName}} --include-dependencies --no-deps
+        env:
+          FORCE_COLOR: '1'
+      - name: Test ${{matrix.packageName}}
+        run: node utils/gen.js && node_modules/.bin/turbo run ${{matrix.testScript}} --summarize --cache-dir=".turbo" --log-order=stream --scope=${{matrix.packageName}} --no-deps -- ${{ join(matrix.testPaths, ' ') }}
+        shell: bash
+        env:
+          JEST_JUNIT_OUTPUT_FILE: ${{github.workspace}}/.junit-reports/${{matrix.scriptName}}-${{matrix.packageName}}-${{matrix.chunkNumber}}-${{ matrix.runner }}.xml
+          VERCEL_CLI_VERSION: ${{ needs.setup.outputs.dplUrl }}/tarballs/vercel.tgz
+          VERCEL_TEST_TOKEN: ${{ secrets.VERCEL_TEST_TOKEN }}
+          VERCEL_TEST_REGISTRATION_URL: ${{ secrets.VERCEL_TEST_REGISTRATION_URL }}
+          FORCE_COLOR: '1'
+      - name: 'Determine Turbo HIT or MISS'
+        if: ${{ !cancelled() }}
+        id: turbo-summary
+        shell: bash
+        run: |
+          TURBO_MISS_COUNT=`node utils/determine-turbo-hit-or-miss.js`
+          echo "MISS COUNT: $TURBO_MISS_COUNT"
+          echo "misses=$TURBO_MISS_COUNT" >> $GITHUB_OUTPUT
+      - name: 'Upload Test Report to Datadog'
+        if: ${{ steps['turbo-summary'].outputs.misses != '0' && !cancelled() }}
+        run: 'npx @datadog/datadog-ci@2.18.1 junit upload --service vercel-cli .junit-reports'
+        env:
+          DATADOG_API_KEY: ${{secrets.DATADOG_API_KEY_CLI}}
+          DD_ENV: ci
+
+  summary:
+    name: Summary
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    if: always()
+    needs:
+      - test
+    steps:
+      - name: Check All
+        run: |-
+          for status in ${{ join(needs.*.result, ' ') }}
+          do
+            if [ "$status" != "success" ] && [ "$status" != "skipped" ]
+            then
+              echo "Some checks failed"
+              exit 1
+            fi
+          done

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Tests
+name: Tests Node.js v16
 
 on:
   push:
@@ -99,7 +99,7 @@ jobs:
           echo "misses=$TURBO_MISS_COUNT" >> $GITHUB_OUTPUT
       - name: 'Upload Test Report to Datadog'
         if: ${{ steps['turbo-summary'].outputs.misses != '0' && !cancelled() }}
-        run: 'npx @datadog/datadog-ci@2.18.1 junit upload --service vercel-cli .junit-reports'
+        run: 'npx @datadog/datadog-ci@2.36.0 junit upload --service vercel-cli .junit-reports'
         env:
           DATADOG_API_KEY: ${{secrets.DATADOG_API_KEY_CLI}}
           DD_ENV: ci

README.md

@@ -37,7 +37,7 @@ You can use the `dev` script to run local changes as if you were invoking Vercel
 
 When contributing to this repository, please first discuss the change you wish to make via [GitHub Discussions](https://github.com/vercel/vercel/discussions/new) with the owners of this repository before submitting a Pull Request.
 
-Please read our [Code of Conduct](CODE_OF_CONDUCT.md) and follow it in all your interactions with the project.
+Please read our [Code of Conduct](./.github/CODE_OF_CONDUCT.md) and follow it in all your interactions with the project.
 
 ### Local development
 

examples/package.json

@@ -9,7 +9,7 @@
   },
   "devDependencies": {
     "@types/jest": "27.4.1",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/frameworks": "3.0.2"
   },
   "version": null

examples/remix/package.json

@@ -9,18 +9,18 @@
     "typecheck": "tsc"
   },
   "dependencies": {
-    "@remix-run/node": "^2.8.0",
+    "@remix-run/node": "^2.9.2",
-    "@remix-run/react": "^2.8.0",
+    "@remix-run/react": "^2.9.2",
-    "@remix-run/server-runtime": "^2.8.0",
+    "@remix-run/server-runtime": "^2.9.2",
     "@vercel/analytics": "^1.2.2",
-    "@vercel/remix": "^2.8.0",
+    "@vercel/remix": "2.9.2-patch.2",
     "isbot": "^4",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
   },
   "devDependencies": {
-    "@remix-run/dev": "^2.8.0",
+    "@remix-run/dev": "^2.9.2",
-    "@remix-run/eslint-config": "^2.8.0",
+    "@remix-run/eslint-config": "^2.9.2",
     "@types/react": "^18.2.20",
     "@types/react-dom": "^18.2.7",
     "eslint": "^8.38.0",

internals/types/CHANGELOG.md

@@ -1,5 +1,47 @@
 # @vercel-internals/types
 
+## 1.0.37
+
+### Patch Changes
+
+- Updated dependencies [[`83741a0eb`](https://github.com/vercel/vercel/commit/83741a0eb9e44457b083e8790a11eb89984e6357)]:
+  - @vercel/build-utils@8.2.1
+
+## 1.0.36
+
+### Patch Changes
+
+- Updated dependencies [[`d3c1267e2`](https://github.com/vercel/vercel/commit/d3c1267e24082789ea6382cf6af81dd40df288ff), [`ccd7eb1fb`](https://github.com/vercel/vercel/commit/ccd7eb1fb78f7ac9effdbe1935de3bda82c97fe3)]:
+  - @vercel/build-utils@8.2.0
+
+## 1.0.35
+
+### Patch Changes
+
+- Updated dependencies [[`ad6945435`](https://github.com/vercel/vercel/commit/ad69454352b519b2b0ed326f245c779530554bf2)]:
+  - @vercel/build-utils@8.1.3
+
+## 1.0.34
+
+### Patch Changes
+
+- Updated dependencies [[`1682ad43d`](https://github.com/vercel/vercel/commit/1682ad43d0064b22b1248a7e946746b838f00076)]:
+  - @vercel/build-utils@8.1.2
+
+## 1.0.33
+
+### Patch Changes
+
+- Updated dependencies [[`2f7a6ed5f`](https://github.com/vercel/vercel/commit/2f7a6ed5f92d454000f92247d3b6548e2064f4e6)]:
+  - @vercel/build-utils@8.1.1
+
+## 1.0.32
+
+### Patch Changes
+
+- Updated dependencies [[`5014b1e82`](https://github.com/vercel/vercel/commit/5014b1e82a46181baeb727ffe6d14000b6a4b1d7)]:
+  - @vercel/build-utils@8.1.0
+
 ## 1.0.31
 
 ### Patch Changes

internals/types/package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "@vercel-internals/types",
-  "version": "1.0.31",
+  "version": "1.0.37",
   "types": "index.d.ts",
   "main": "index.d.ts",
   "files": [
@@ -10,7 +10,7 @@
   "dependencies": {
     "@types/node": "14.14.31",
     "@vercel-internals/constants": "1.0.4",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/routing-utils": "3.1.0"
   },
   "devDependencies": {

packages/build-utils/CHANGELOG.md

@@ -1,5 +1,46 @@
 # @vercel/build-utils
 
+## 8.2.1
+
+### Patch Changes
+
+- [node] update node@16 deprecation day ([#11671](https://github.com/vercel/vercel/pull/11671))
+
+## 8.2.0
+
+### Minor Changes
+
+- fix corepack detection for package manager version determination ([#11596](https://github.com/vercel/vercel/pull/11596))
+
+### Patch Changes
+
+- Fix triggering of ignored project settings node version warning ([#11550](https://github.com/vercel/vercel/pull/11550))
+
+## 8.1.3
+
+### Patch Changes
+
+- [build-utils] log more around package manager detection ([#11594](https://github.com/vercel/vercel/pull/11594))
+
+## 8.1.2
+
+### Patch Changes
+
+- add log to package manager version detection ([#11592](https://github.com/vercel/vercel/pull/11592))
+
+## 8.1.1
+
+### Patch Changes
+
+- [build-utils] pnpm lockfile testing and fixing ([#11591](https://github.com/vercel/vercel/pull/11591))
+
+## 8.1.0
+
+### Minor Changes
+
+- Update pnpm version detection logic ([#11445](https://github.com/vercel/vercel/pull/11445))
+  Add support for pnpm 9
+
 ## 8.0.0
 
 ### Major Changes

packages/build-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/build-utils",
-  "version": "8.0.0",
+  "version": "8.2.1",
   "license": "Apache-2.0",
   "main": "./dist/index.js",
   "types": "./dist/index.d.js",

packages/build-utils/src/fs/node-version.ts

@@ -13,7 +13,7 @@ export const NODE_VERSIONS: NodeVersion[] = [
     major: 16,
     range: '16.x',
     runtime: 'nodejs16.x',
-    discontinueDate: new Date('2024-06-15'),
+    discontinueDate: new Date('2025-02-28'),
   },
   {
     major: 14,

packages/build-utils/src/fs/run-user-scripts.ts

@@ -240,38 +240,51 @@ export function getSpawnOptions(
 
 export async function getNodeVersion(
   destPath: string,
-  nodeVersionFallback = process.env.VERCEL_PROJECT_SETTINGS_NODE_VERSION,
+  fallbackVersion = process.env.VERCEL_PROJECT_SETTINGS_NODE_VERSION,
   config: Config = {},
   meta: Meta = {},
   availableVersions = getAvailableNodeVersions()
 ): Promise<NodeVersion> {
-  const latest = getLatestNodeVersion(availableVersions);
+  const latestVersion = getLatestNodeVersion(availableVersions);
   if (meta.isDev) {
     // Use the system-installed version of `node` in PATH for `vercel dev`
-    return { ...latest, runtime: 'nodejs' };
+    return { ...latestVersion, runtime: 'nodejs' };
   }
   const { packageJson } = await scanParentDirs(destPath, true);
-  let nodeVersion = config.nodeVersion || nodeVersionFallback;
+  const configuredVersion = config.nodeVersion || fallbackVersion;
-  let isAuto = true;
+
+  const packageJsonVersion = packageJson?.engines?.node;
+  const supportedNodeVersion = await getSupportedNodeVersion(
+    packageJsonVersion || configuredVersion,
+    !packageJsonVersion,
+    availableVersions
+  );
+
   if (packageJson?.engines?.node) {
     const { node } = packageJson.engines;
-    if (nodeVersion && validRange(node) && !intersects(nodeVersion, node)) {
+    if (
+      configuredVersion &&
+      !intersects(configuredVersion, supportedNodeVersion.range)
+    ) {
       console.warn(
-        `Warning: Due to "engines": { "node": "${node}" } in your \`package.json\` file, the Node.js Version defined in your Project Settings ("${nodeVersion}") will not apply. Learn More: http://vercel.link/node-version`
+        `Warning: Due to "engines": { "node": "${node}" } in your \`package.json\` file, the Node.js Version defined in your Project Settings ("${configuredVersion}") will not apply. Learn More: http://vercel.link/node-version`
       );
-    } else if (coerce(node)?.raw === node) {
+    }
+
+    if (coerce(node)?.raw === node) {
       console.warn(
         `Warning: Detected "engines": { "node": "${node}" } in your \`package.json\` with major.minor.patch, but only major Node.js Version can be selected. Learn More: http://vercel.link/node-version`
       );
-    } else if (validRange(node) && intersects(`${latest.major + 1}.x`, node)) {
+    } else if (
+      validRange(node) &&
+      intersects(`${latestVersion.major + 1}.x`, node)
+    ) {
       console.warn(
         `Warning: Detected "engines": { "node": "${node}" } in your \`package.json\` that will automatically upgrade when a new major Node.js Version is released. Learn More: http://vercel.link/node-version`
       );
     }
-    nodeVersion = node;
-    isAuto = false;
   }
-  return getSupportedNodeVersion(nodeVersion, isAuto, availableVersions);
+  return supportedNodeVersion;
 }
 
 export async function scanParentDirs(
@@ -413,9 +426,8 @@ export async function runNpmInstall(
 
   try {
     await runNpmInstallSema.acquire();
-    const { cliType, packageJsonPath, lockfileVersion } = await scanParentDirs(
+    const { cliType, packageJsonPath, packageJson, lockfileVersion } =
-      destPath
+      await scanParentDirs(destPath, true);
-    );
 
     if (!packageJsonPath) {
       debug(
@@ -450,6 +462,7 @@ export async function runNpmInstall(
     opts.env = getEnvForPackageManager({
       cliType,
       lockfileVersion,
+      packageJsonPackageManager: packageJson?.packageManager,
       nodeVersion,
       env,
     });
@@ -534,40 +547,54 @@ export async function runNpmInstall(
 export function getEnvForPackageManager({
   cliType,
   lockfileVersion,
+  packageJsonPackageManager,
   nodeVersion,
   env,
 }: {
   cliType: CliType;
   lockfileVersion: number | undefined;
+  packageJsonPackageManager?: string | undefined;
   nodeVersion: NodeVersion | undefined;
   env: { [x: string]: string | undefined };
 }) {
+  const corepackFlagged = env.ENABLE_EXPERIMENTAL_COREPACK === '1';
+  const corepackEnabled = corepackFlagged && Boolean(packageJsonPackageManager);
+
   const {
     detectedLockfile,
     detectedPackageManager,
     path: newPath,
-    yarnNodeLinker,
+  } = getPathOverrideForPackageManager({
-  } = getPathForPackageManager({
     cliType,
     lockfileVersion,
+    corepackEnabled,
     nodeVersion,
-    env,
   });
 
+  if (corepackEnabled) {
+    debug(
+      `Detected corepack use for "${packageJsonPackageManager}". Not overriding package manager version.`
+    );
+  } else {
+    debug(
+      `Detected ${detectedPackageManager}. Added "${newPath}" to path. Based on assumed package manager "${cliType}", lockfile "${detectedLockfile}", and lockfileVersion "${lockfileVersion}"`
+    );
+  }
+
   const newEnv: { [x: string]: string | undefined } = {
     ...env,
   };
 
-  if (newPath) {
+  const alreadyInPath = (newPath: string) => {
+    const oldPath = env.PATH ?? '';
+    return oldPath.split(path.delimiter).includes(newPath);
+  };
+
+  if (newPath && !alreadyInPath(newPath)) {
     // Ensure that the binaries of the detected package manager are at the
     // beginning of the `$PATH`.
     const oldPath = env.PATH + '';
     newEnv.PATH = `${newPath}${path.delimiter}${oldPath}`;
-  }
-
-  if (yarnNodeLinker) {
-    newEnv.YARN_NODE_LINKER = yarnNodeLinker;
-  }
 
     if (detectedLockfile && detectedPackageManager) {
       // For pnpm we also show the version of the lockfile we found
@@ -584,14 +611,153 @@ export function getEnvForPackageManager({
         );
       }
     }
+  }
+
+  if (cliType === 'yarn' && !env.YARN_NODE_LINKER) {
+    newEnv.YARN_NODE_LINKER = 'node-modules';
+  }
 
   return newEnv;
 }
 
+type DetectedPnpmVersion =
+  | 'not found'
+  | 'pnpm 6'
+  | 'pnpm 7'
+  | 'pnpm 8'
+  | 'pnpm 9'
+  | 'corepack_enabled';
+
+function detectPnpmVersion(
+  lockfileVersion: number | undefined,
+  corepackEnabled: boolean
+): DetectedPnpmVersion {
+  switch (true) {
+    case corepackEnabled:
+      return 'corepack_enabled';
+    case lockfileVersion === undefined:
+      return 'not found';
+    case lockfileVersion === 5.3:
+      return 'pnpm 6';
+    case lockfileVersion === 5.4:
+      return 'pnpm 7';
+    case lockfileVersion === 6.0 || lockfileVersion === 6.1:
+      return 'pnpm 8';
+    case lockfileVersion === 7.0 || lockfileVersion === 9.0:
+      return 'pnpm 9';
+    default:
+      return 'not found';
+  }
+}
+
+function shouldUseNpm7(
+  lockfileVersion: number | undefined,
+  nodeVersion: NodeVersion | undefined
+): boolean {
+  if (lockfileVersion === undefined) return false;
+  return lockfileVersion >= 2 && (nodeVersion?.major || 0) < 16;
+}
+
 /**
  * Helper to get the binary paths that link to the used package manager.
  * Note: Make sure it doesn't contain any `console.log` calls.
  */
+export function getPathOverrideForPackageManager({
+  cliType,
+  lockfileVersion,
+  corepackEnabled,
+  nodeVersion,
+}: {
+  cliType: CliType;
+  lockfileVersion: number | undefined;
+  corepackEnabled: boolean;
+  nodeVersion: NodeVersion | undefined;
+}): {
+  /**
+   * Which lockfile was detected.
+   */
+  detectedLockfile: string | undefined;
+  /**
+   * Detected package manager that generated the found lockfile.
+   */
+  detectedPackageManager: string | undefined;
+  /**
+   * Value of $PATH that includes the binaries for the detected package manager.
+   * Undefined if no $PATH are necessary.
+   */
+  path: string | undefined;
+} {
+  const no_override = {
+    detectedLockfile: undefined,
+    detectedPackageManager: undefined,
+    path: undefined,
+  };
+
+  switch (cliType) {
+    case 'npm':
+      switch (true) {
+        case corepackEnabled:
+          return no_override;
+        case shouldUseNpm7(lockfileVersion, nodeVersion):
+          return {
+            path: '/node16/bin-npm7',
+            detectedLockfile: 'package-lock.json',
+            detectedPackageManager: 'npm 7+',
+          };
+        default:
+          return no_override;
+      }
+    case 'pnpm':
+      switch (detectPnpmVersion(lockfileVersion, corepackEnabled)) {
+        case 'corepack_enabled':
+          return no_override;
+        case 'pnpm 7':
+          // pnpm 7
+          return {
+            path: '/pnpm7/node_modules/.bin',
+            detectedLockfile: 'pnpm-lock.yaml',
+            detectedPackageManager: 'pnpm 7',
+          };
+        case 'pnpm 8':
+          // pnpm 8
+          return {
+            path: '/pnpm8/node_modules/.bin',
+            detectedLockfile: 'pnpm-lock.yaml',
+            detectedPackageManager: 'pnpm 8',
+          };
+        case 'pnpm 9':
+          // pnpm 9
+          return {
+            path: '/pnpm9/node_modules/.bin',
+            detectedLockfile: 'pnpm-lock.yaml',
+            detectedPackageManager: 'pnpm 9',
+          };
+        case 'pnpm 6':
+        default:
+          return no_override;
+      }
+    case 'bun':
+      switch (true) {
+        case corepackEnabled:
+          return no_override;
+        default:
+          // Bun 1
+          return {
+            path: '/bun1',
+            detectedLockfile: 'bun.lockb',
+            detectedPackageManager: 'Bun',
+          };
+      }
+    case 'yarn':
+      return no_override;
+  }
+}
+
+/**
+ * Helper to get the binary paths that link to the used package manager.
+ * Note: Make sure it doesn't contain any `console.log` calls.
+ * @deprecated use `getEnvForPackageManager` instead
+ */
 export function getPathForPackageManager({
   cliType,
   lockfileVersion,
@@ -622,70 +788,36 @@ export function getPathForPackageManager({
    */
   yarnNodeLinker: string | undefined;
 } {
-  let detectedLockfile: string | undefined;
+  // This is not the correct check for whether or not corepack is being used. For that, you'd have to check
-  let detectedPackageManager: string | undefined;
+  // the package.json's `packageManager` property. However, this deprecated function is keeping it's old,
-  let pathValue: string | undefined;
+  // broken behavior.
-  let yarnNodeLinker: string | undefined;
-  const oldPath = env.PATH + '';
-  const npm7 = '/node16/bin-npm7';
-  const pnpm7 = '/pnpm7/node_modules/.bin';
-  const pnpm8 = '/pnpm8/node_modules/.bin';
-  const bun1 = '/bun1';
   const corepackEnabled = env.ENABLE_EXPERIMENTAL_COREPACK === '1';
-  if (cliType === 'npm') {
+
-    if (
+  const overrides = getPathOverrideForPackageManager({
-      typeof lockfileVersion === 'number' &&
+    cliType,
-      lockfileVersion >= 2 &&
+    lockfileVersion,
-      (nodeVersion?.major || 0) < 16 &&
+    corepackEnabled,
-      !oldPath.includes(npm7) &&
+    nodeVersion,
-      !corepackEnabled
+  });
-    ) {
+
-      // npm 7
+  const alreadyInPath = (newPath: string) => {
-      pathValue = npm7;
+    const oldPath = env.PATH ?? '';
-      detectedLockfile = 'package-lock.json';
+    return oldPath.split(path.delimiter).includes(newPath);
-      detectedPackageManager = 'npm 7+';
-    }
-  } else if (cliType === 'pnpm') {
-    if (
-      typeof lockfileVersion === 'number' &&
-      lockfileVersion === 5.4 &&
-      !oldPath.includes(pnpm7) &&
-      !corepackEnabled
-    ) {
-      // pnpm 7
-      pathValue = pnpm7;
-      detectedLockfile = 'pnpm-lock.yaml';
-      detectedPackageManager = 'pnpm 7';
-    } else if (
-      typeof lockfileVersion === 'number' &&
-      lockfileVersion >= 6 &&
-      !oldPath.includes(pnpm8) &&
-      !corepackEnabled
-    ) {
-      // pnpm 8
-      pathValue = pnpm8;
-      detectedLockfile = 'pnpm-lock.yaml';
-      detectedPackageManager = 'pnpm 8';
-    }
-  } else if (cliType === 'bun') {
-    if (!oldPath.includes(bun1) && !corepackEnabled) {
-      // Bun 1
-      pathValue = bun1;
-      detectedLockfile = 'bun.lockb';
-      detectedPackageManager = 'Bun';
-    }
-  } else {
-    // Yarn v2 PnP mode may be activated, so force "node-modules" linker style
-    if (!env.YARN_NODE_LINKER) {
-      yarnNodeLinker = 'node-modules';
-    }
-  }
-  return {
-    detectedLockfile,
-    detectedPackageManager,
-    path: pathValue,
-    yarnNodeLinker,
   };
+
+  switch (true) {
+    case cliType === 'yarn' && !env.YARN_NODE_LINKER:
+      return { ...overrides, yarnNodeLinker: 'node-modules' };
+    case alreadyInPath(overrides.path ?? ''):
+      return {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+        yarnNodeLinker: undefined,
+      };
+    default:
+      return { ...overrides, yarnNodeLinker: undefined };
+  }
 }
 
 export async function runCustomInstallCommand({
@@ -700,10 +832,14 @@ export async function runCustomInstallCommand({
   spawnOpts?: SpawnOptions;
 }) {
   console.log(`Running "install" command: \`${installCommand}\`...`);
-  const { cliType, lockfileVersion } = await scanParentDirs(destPath);
+  const { cliType, lockfileVersion, packageJson } = await scanParentDirs(
+    destPath,
+    true
+  );
   const env = getEnvForPackageManager({
     cliType,
     lockfileVersion,
+    packageJsonPackageManager: packageJson?.packageManager,
     nodeVersion,
     env: spawnOpts?.env || {},
   });
@@ -741,6 +877,7 @@ export async function runPackageJsonScript(
     env: getEnvForPackageManager({
       cliType,
       lockfileVersion,
+      packageJsonPackageManager: packageJson?.packageManager,
       nodeVersion: undefined,
       env: cloneEnv(process.env, spawnOpts?.env),
     }),

packages/build-utils/test/fixtures/22-pnpm/vercel.json

@@ -4,7 +4,7 @@
   "probes": [
     {
       "path": "/",
-      "mustContain": "pnpm version: 6",
+      "mustContain": "pnpm version: 7",
       "logMustContain": "pnpm run build"
     }
   ]

packages/build-utils/test/unit.get-env-for-package-manager.test.ts

@@ -1,5 +1,6 @@
 import { delimiter } from 'path';
 import { getEnvForPackageManager, getPathForPackageManager } from '../src';
+import { getPathOverrideForPackageManager } from '../src/fs/run-user-scripts';
 
 describe('Test `getEnvForPackageManager()`', () => {
   let consoleLogSpy: jest.SpyInstance;
@@ -34,6 +35,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'npm',
         nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 1,
         env: {
           FOO: 'bar',
@@ -50,6 +52,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'npm',
         nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -68,6 +71,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'npm',
         nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: 'pnpm@latest',
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -86,6 +90,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'npm',
         nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -104,6 +109,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'npm',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -122,6 +128,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'yarn',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -139,6 +146,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'yarn',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 2,
         env: {
           FOO: 'bar',
@@ -157,6 +165,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'pnpm',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 5.4,
         env: {
           FOO: 'bar',
@@ -171,11 +180,52 @@ describe('Test `getEnvForPackageManager()`', () => {
         'Detected `pnpm-lock.yaml` version 5.4 generated by pnpm 7',
       consoleWarnOutput: null,
     },
+    {
+      name: 'should set path if pnpm 8 is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 6.0,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        FOO: 'bar',
+        PATH: `/pnpm8/node_modules/.bin${delimiter}foo`,
+      },
+      consoleLogOutput:
+        'Detected `pnpm-lock.yaml` version 6 generated by pnpm 8',
+      consoleWarnOutput: null,
+    },
+    {
+      name: 'should set path if pnpm 8 is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 9.0,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        FOO: 'bar',
+        PATH: `/pnpm9/node_modules/.bin${delimiter}foo`,
+      },
+      consoleLogOutput:
+        'Detected `pnpm-lock.yaml` version 9 generated by pnpm 9',
+      consoleWarnOutput: null,
+    },
     {
       name: 'should set path if bun v1 is detected',
       args: {
         cliType: 'bun',
         nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 0,
         env: {
           FOO: 'bar',
@@ -195,6 +245,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'pnpm',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: 'npm@latest',
         lockfileVersion: 5.4,
         env: {
           FOO: 'bar',
@@ -213,6 +264,7 @@ describe('Test `getEnvForPackageManager()`', () => {
       args: {
         cliType: 'pnpm',
         nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
         lockfileVersion: 5.4,
         env: {
           FOO: 'bar',
@@ -226,27 +278,12 @@ describe('Test `getEnvForPackageManager()`', () => {
       consoleLogOutput: null,
       consoleWarnOutput: null,
     },
-    {
-      name: 'should not set path if pnpm 6 is detected',
-      args: {
-        cliType: 'pnpm',
-        nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
-        lockfileVersion: 5.3,
-        env: {
-          FOO: 'bar',
-        },
-      },
-      want: {
-        FOO: 'bar',
-      },
-      consoleLogOutput: null,
-      consoleWarnOutput: null,
-    },
   ])('$name', ({ args, want, consoleLogOutput, consoleWarnOutput }) => {
     expect(
       getEnvForPackageManager({
         cliType: args.cliType,
         lockfileVersion: args.lockfileVersion,
+        packageJsonPackageManager: args.packageJsonPackageManager,
         nodeVersion: args.nodeVersion,
         env: args.env,
       })
@@ -268,11 +305,210 @@ describe('Test `getEnvForPackageManager()`', () => {
   });
 });
 
-describe('Test `getPathForPackageManager()`', () => {
+describe('Test `getPathOverrideForPackageManager()`', () => {
   test.each<{
     name: string;
     args: Parameters<typeof getEnvForPackageManager>[0];
     want: unknown;
+  }>([
+    {
+      name: 'should do nothing to env for npm < 6 and node < 16',
+      args: {
+        cliType: 'npm',
+        nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 1,
+        env: {
+          FOO: 'bar',
+        },
+      },
+      want: {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+      },
+    },
+    {
+      name: 'should set path if npm 7+ is detected and node < 16',
+      args: {
+        cliType: 'npm',
+        nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 2,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: 'package-lock.json',
+        detectedPackageManager: 'npm 7+',
+        path: '/node16/bin-npm7',
+      },
+    },
+    {
+      name: 'should not set npm path if corepack enabled',
+      args: {
+        cliType: 'npm',
+        nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
+        packageJsonPackageManager: 'pnpm@latest',
+        lockfileVersion: 2,
+        env: {
+          FOO: 'bar',
+          ENABLE_EXPERIMENTAL_COREPACK: '1',
+        },
+      },
+      want: {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+      },
+    },
+
+    {
+      name: 'should not set path if node is 16 and npm 7+ is detected',
+      args: {
+        cliType: 'npm',
+        nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 2,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+      },
+    },
+    {
+      name: 'should not set path if pnpm 6 is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 5.3, // detects as pnpm@6, which is the default
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+      },
+    },
+    {
+      name: 'should set path if pnpm 7+ is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 5.4,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: 'pnpm-lock.yaml',
+        detectedPackageManager: 'pnpm 7',
+        path: '/pnpm7/node_modules/.bin',
+      },
+    },
+    {
+      name: 'should set path if pnpm 8 is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 6.1,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: 'pnpm-lock.yaml',
+        detectedPackageManager: 'pnpm 8',
+        path: '/pnpm8/node_modules/.bin',
+      },
+    },
+    {
+      name: 'should set path if pnpm 9 is detected',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 7.0,
+        env: {
+          FOO: 'bar',
+          PATH: 'foo',
+        },
+      },
+      want: {
+        detectedLockfile: 'pnpm-lock.yaml',
+        detectedPackageManager: 'pnpm 9',
+        path: '/pnpm9/node_modules/.bin',
+      },
+    },
+    {
+      name: 'should set path if bun v1 is detected',
+      args: {
+        cliType: 'bun',
+        nodeVersion: { major: 18, range: '18.x', runtime: 'nodejs18.x' },
+        packageJsonPackageManager: undefined,
+        lockfileVersion: 0,
+        env: {
+          FOO: 'bar',
+          PATH: '/usr/local/bin',
+        },
+      },
+      want: {
+        detectedLockfile: 'bun.lockb',
+        detectedPackageManager: 'Bun',
+        path: '/bun1',
+      },
+    },
+    {
+      name: 'should not set pnpm path if corepack is enabled',
+      args: {
+        cliType: 'pnpm',
+        nodeVersion: { major: 16, range: '16.x', runtime: 'nodejs16.x' },
+        packageJsonPackageManager: 'npm@latest',
+        lockfileVersion: 5.4,
+        env: {
+          FOO: 'bar',
+          ENABLE_EXPERIMENTAL_COREPACK: '1',
+        },
+      },
+      want: {
+        detectedLockfile: undefined,
+        detectedPackageManager: undefined,
+        path: undefined,
+      },
+    },
+  ])('$name', ({ args, want }) => {
+    expect(
+      getPathOverrideForPackageManager({
+        cliType: args.cliType,
+        lockfileVersion: args.lockfileVersion,
+        // naive assumption that enabling corepack as a feature means it's used, but this is fine for tests
+        corepackEnabled: Boolean(args.env.ENABLE_EXPERIMENTAL_COREPACK),
+        nodeVersion: args.nodeVersion,
+      })
+    ).toStrictEqual(want);
+  });
+});
+
+describe('Test `getPathForPackageManager()`', () => {
+  test.each<{
+    name: string;
+    args: Parameters<typeof getPathForPackageManager>[0];
+    want: unknown;
   }>([
     {
       name: 'should do nothing to env for npm < 6 and node < 16',
@@ -470,23 +706,6 @@ describe('Test `getPathForPackageManager()`', () => {
         yarnNodeLinker: undefined,
       },
     },
-    {
-      name: 'should not set path if pnpm 6 is detected',
-      args: {
-        cliType: 'pnpm',
-        nodeVersion: { major: 14, range: '14.x', runtime: 'nodejs14.x' },
-        lockfileVersion: 5.3,
-        env: {
-          FOO: 'bar',
-        },
-      },
-      want: {
-        detectedLockfile: undefined,
-        detectedPackageManager: undefined,
-        path: undefined,
-        yarnNodeLinker: undefined,
-      },
-    },
   ])('$name', ({ args, want }) => {
     expect(
       getPathForPackageManager({

packages/build-utils/test/unit.test.ts

@@ -221,6 +221,21 @@ it('should warn when package.json engines is greater than', async () => {
   ]);
 });
 
+it('should warn when project settings gets overrided', async () => {
+  expect(
+    await getNodeVersion(
+      path.join(__dirname, 'pkg-engine-node-greaterthan'),
+      undefined,
+      { nodeVersion: '16.x' },
+      {}
+    )
+  ).toHaveProperty('range', '20.x');
+  expect(warningMessages).toStrictEqual([
+    'Warning: Due to "engines": { "node": ">=16" } in your `package.json` file, the Node.js Version defined in your Project Settings ("16.x") will not apply. Learn More: http://vercel.link/node-version',
+    'Warning: Detected "engines": { "node": ">=16" } in your `package.json` that will automatically upgrade when a new major Node.js Version is released. Learn More: http://vercel.link/node-version',
+  ]);
+});
+
 it('should not warn when package.json engines matches project setting from config', async () => {
   expect(
     await getNodeVersion(
@@ -271,7 +286,7 @@ it('should throw for discontinued versions', async () => {
   // Mock a future date so that Node 16 becomes discontinued
   const realDateNow = Date.now;
   try {
-    global.Date.now = () => new Date('2024-07-16').getTime();
+    global.Date.now = () => new Date('2025-03-01').getTime();
 
     expect(getSupportedNodeVersion('8.10.x', false)).rejects.toThrow();
     expect(getSupportedNodeVersion('8.10.x', true)).rejects.toThrow();
@@ -341,8 +356,8 @@ it('should warn for deprecated versions, soon to be discontinued', async () => {
       'Error: Node.js version 12.x has reached End-of-Life. Deployments created on or after 2022-10-03 will fail to build. Please set Node.js Version to 20.x in your Project Settings to use Node.js 20.',
       'Error: Node.js version 14.x has reached End-of-Life. Deployments created on or after 2023-08-15 will fail to build. Please set "engines": { "node": "20.x" } in your `package.json` file to use Node.js 20.',
       'Error: Node.js version 14.x has reached End-of-Life. Deployments created on or after 2023-08-15 will fail to build. Please set Node.js Version to 20.x in your Project Settings to use Node.js 20.',
-      'Error: Node.js version 16.x has reached End-of-Life. Deployments created on or after 2024-06-15 will fail to build. Please set "engines": { "node": "20.x" } in your `package.json` file to use Node.js 20.',
+      'Error: Node.js version 16.x has reached End-of-Life. Deployments created on or after 2025-02-28 will fail to build. Please set "engines": { "node": "20.x" } in your `package.json` file to use Node.js 20.',
-      'Error: Node.js version 16.x has reached End-of-Life. Deployments created on or after 2024-06-15 will fail to build. Please set Node.js Version to 20.x in your Project Settings to use Node.js 20.',
+      'Error: Node.js version 16.x has reached End-of-Life. Deployments created on or after 2025-02-28 will fail to build. Please set Node.js Version to 20.x in your Project Settings to use Node.js 20.',
     ]);
   } finally {
     global.Date.now = realDateNow;

packages/cli/CHANGELOG.md

@@ -1,5 +1,134 @@
 # vercel
 
+## 34.2.4
+
+### Patch Changes
+
+- Updated dependencies [[`3eb9d8c89`](https://github.com/vercel/vercel/commit/3eb9d8c8929592960d88e0395e2a2443f7304d6b), [`83741a0eb`](https://github.com/vercel/vercel/commit/83741a0eb9e44457b083e8790a11eb89984e6357)]:
+  - @vercel/python@4.3.0
+  - @vercel/build-utils@8.2.1
+  - @vercel/node@3.1.6
+  - @vercel/static-build@2.5.10
+
+## 34.2.3
+
+### Patch Changes
+
+- Don't create streaming lambdas for pages router routes ([#11660](https://github.com/vercel/vercel/pull/11660))
+
+- Updated dependencies [[`c9d53d4e3`](https://github.com/vercel/vercel/commit/c9d53d4e3e4591b9b6bde86100564c9ee4c6d1d4), [`5f561f8cf`](https://github.com/vercel/vercel/commit/5f561f8cfa4720801a5cf4598f193ab34539abb9)]:
+  - @vercel/next@4.2.14
+
+## 34.2.2
+
+### Patch Changes
+
+- Fix related to erroring when a prefetch route is not provided but the route is PPR enabled ([#11638](https://github.com/vercel/vercel/pull/11638))
+
+- Updated dependencies [[`8e44ef5b9`](https://github.com/vercel/vercel/commit/8e44ef5b9d2cdbe743c7f1e3534f182465fed9bf), [`61e6af374`](https://github.com/vercel/vercel/commit/61e6af3740296c11015d0c3da84ee205020b0ea6)]:
+  - @vercel/next@4.2.13
+
+## 34.2.1
+
+### Patch Changes
+
+- Support incremental PPR for large applications ([#11625](https://github.com/vercel/vercel/pull/11625))
+
+- Updated dependencies [[`73e558913`](https://github.com/vercel/vercel/commit/73e558913ab30ba097d7536a12fa8a7c967479f0)]:
+  - @vercel/next@4.2.12
+
+## 34.2.0
+
+### Minor Changes
+
+- Stop sending system environment variables in dev ([#11526](https://github.com/vercel/vercel/pull/11526))
+
+### Patch Changes
+
+- Updated dependencies [[`d3c1267e2`](https://github.com/vercel/vercel/commit/d3c1267e24082789ea6382cf6af81dd40df288ff), [`ccd7eb1fb`](https://github.com/vercel/vercel/commit/ccd7eb1fb78f7ac9effdbe1935de3bda82c97fe3)]:
+  - @vercel/build-utils@8.2.0
+  - @vercel/node@3.1.5
+  - @vercel/static-build@2.5.9
+
+## 34.1.14
+
+### Patch Changes
+
+- Updated dependencies [[`ad6945435`](https://github.com/vercel/vercel/commit/ad69454352b519b2b0ed326f245c779530554bf2)]:
+  - @vercel/build-utils@8.1.3
+  - @vercel/node@3.1.4
+  - @vercel/static-build@2.5.8
+
+## 34.1.13
+
+### Patch Changes
+
+- Updated dependencies [[`1682ad43d`](https://github.com/vercel/vercel/commit/1682ad43d0064b22b1248a7e946746b838f00076)]:
+  - @vercel/build-utils@8.1.2
+  - @vercel/node@3.1.3
+  - @vercel/static-build@2.5.7
+
+## 34.1.12
+
+### Patch Changes
+
+- Updated dependencies [[`67afc2608`](https://github.com/vercel/vercel/commit/67afc26085e2ebdaa33a8cbce112afec4cb1c4f5), [`2f7a6ed5f`](https://github.com/vercel/vercel/commit/2f7a6ed5f92d454000f92247d3b6548e2064f4e6)]:
+  - @vercel/next@4.2.11
+  - @vercel/build-utils@8.1.1
+  - @vercel/node@3.1.2
+  - @vercel/static-build@2.5.6
+
+## 34.1.11
+
+### Patch Changes
+
+- Updated dependencies [[`5014b1e82`](https://github.com/vercel/vercel/commit/5014b1e82a46181baeb727ffe6d14000b6a4b1d7), [`18d1703d5`](https://github.com/vercel/vercel/commit/18d1703d5b4f2adc61fd56011f874c393fa57d0d), [`e87d4c14d`](https://github.com/vercel/vercel/commit/e87d4c14d0e718281f9ba91c9ec1cc6e142d383d), [`bc5fd4115`](https://github.com/vercel/vercel/commit/bc5fd41158ec9f36e5db1fe749589adcbaec6950)]:
+  - @vercel/build-utils@8.1.0
+  - @vercel/next@4.2.10
+  - @vercel/redwood@2.0.9
+  - @vercel/remix-builder@2.1.6
+  - @vercel/node@3.1.1
+  - @vercel/static-build@2.5.5
+
+## 34.1.10
+
+### Patch Changes
+
+- Updated dependencies [[`119f80e96`](https://github.com/vercel/vercel/commit/119f80e9611a7a5a755aa689502dcdab323194aa), [`11584b0e9`](https://github.com/vercel/vercel/commit/11584b0e9b55f312f34d0d6467ab498e472ac9df), [`3023122d4`](https://github.com/vercel/vercel/commit/3023122d4e0dd292340d9e9e61ef232baf6e610d), [`0e774b6be`](https://github.com/vercel/vercel/commit/0e774b6be0c832213a64124e1f4fc6d150e87d9f)]:
+  - @vercel/next@4.2.9
+  - @vercel/static-build@2.5.4
+
+## 34.1.9
+
+### Patch Changes
+
+- Updated dependencies [[`5a532a5b9`](https://github.com/vercel/vercel/commit/5a532a5b948994ba04783ac560357eed9f94a3f3), [`50fc27ba5`](https://github.com/vercel/vercel/commit/50fc27ba5773870956300bbbaffbe387d549bc12), [`c1d852295`](https://github.com/vercel/vercel/commit/c1d85229509dd319a1f11beb940a759113564d33), [`a5ea04154`](https://github.com/vercel/vercel/commit/a5ea04154ba26ee4e635d8953aa4f0d9d82d3a96)]:
+  - @vercel/next@4.2.8
+  - @vercel/node@3.1.0
+
+## 34.1.8
+
+### Patch Changes
+
+- Updated dependencies [[`52e435aa5`](https://github.com/vercel/vercel/commit/52e435aa5d7b4014d19477969ad5cbfbe94aa76f), [`124846a3e`](https://github.com/vercel/vercel/commit/124846a3e65a3bf1ae82327fd4ba2b132674fb39), [`dc974b679`](https://github.com/vercel/vercel/commit/dc974b6797de0b6e90373c92e1f2bbdafcfc6687), [`58c6755e0`](https://github.com/vercel/vercel/commit/58c6755e0c12cae2ce55978b7bf8722133151196)]:
+  - @vercel/next@4.2.7
+  - @vercel/static-build@2.5.3
+
+## 34.1.7
+
+### Patch Changes
+
+- Updated dependencies [[`3420ba015`](https://github.com/vercel/vercel/commit/3420ba0153dcabffef7114ba2361fb0f3c43a7b3)]:
+  - @vercel/next@4.2.6
+
+## 34.1.6
+
+### Patch Changes
+
+- Updated dependencies [[`b1adaf76e`](https://github.com/vercel/vercel/commit/b1adaf76ec17d1bbfe30a2bf65405bd886fa9bcf), [`3fb97d1d2`](https://github.com/vercel/vercel/commit/3fb97d1d270e835ce34a687bd234ea53dfe446a2)]:
+  - @vercel/next@4.2.5
+  - @vercel/static-build@2.5.2
+
 ## 34.1.5
 
 ### Patch Changes

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vercel",
-  "version": "34.1.5",
+  "version": "34.2.4",
   "preferGlobal": true,
   "license": "Apache-2.0",
   "description": "The command-line interface for Vercel",
@@ -12,8 +12,8 @@
   },
   "scripts": {
     "test": "jest --reporters=default --reporters=jest-junit --env node --verbose --bail",
-    "vitest-unit-run": "pnpm vitest",
+    "vitest-run": "vitest",
-    "vitest-unit": "pnpm jest test/unit/ --listTests",
+    "vitest-unit": "jest test/unit/ --listTests",
     "test-e2e": "rimraf test/fixtures/integration && pnpm test test/integration-1.test.ts test/integration-2.test.ts test/integration-3.test.ts",
     "test-dev": "pnpm test test/dev/",
     "coverage": "codecov",
@@ -32,17 +32,17 @@
     "node": ">= 16"
   },
   "dependencies": {
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/fun": "1.1.0",
     "@vercel/go": "3.1.1",
     "@vercel/hydrogen": "1.0.2",
-    "@vercel/next": "4.2.4",
+    "@vercel/next": "4.2.14",
-    "@vercel/node": "3.0.28",
+    "@vercel/node": "3.1.6",
-    "@vercel/python": "4.2.0",
+    "@vercel/python": "4.3.0",
-    "@vercel/redwood": "2.0.8",
+    "@vercel/redwood": "2.0.9",
-    "@vercel/remix-builder": "2.1.5",
+    "@vercel/remix-builder": "2.1.6",
     "@vercel/ruby": "2.1.0",
-    "@vercel/static-build": "2.5.1",
+    "@vercel/static-build": "2.5.10",
     "chokidar": "3.3.1"
   },
   "devDependencies": {
@@ -92,8 +92,8 @@
     "@types/yauzl-promise": "2.1.0",
     "@vercel-internals/constants": "1.0.4",
     "@vercel-internals/get-package-json": "1.0.0",
-    "@vercel-internals/types": "1.0.31",
+    "@vercel-internals/types": "1.0.37",
-    "@vercel/client": "13.2.2",
+    "@vercel/client": "13.2.8",
     "@vercel/error-utils": "2.0.2",
     "@vercel/frameworks": "3.0.2",
     "@vercel/fs-detectors": "5.2.3",

packages/cli/src/commands/build/command.ts

@@ -10,7 +10,7 @@ export const buildCommand: Command = {
       name: 'prod',
       description: 'Build a production deployment',
       shorthand: null,
-      type: String,
+      type: Boolean,
       deprecated: false,
     },
     {

packages/cli/src/commands/build/index.ts

@@ -43,7 +43,7 @@ import type { VercelConfig } from '@vercel/client';
 import pull from '../pull';
 import { staticFiles as getFiles } from '../../util/get-files';
 import Client from '../../util/client';
-import getArgs from '../../util/get-args';
+import { parseArguments } from '../../util/get-args';
 import cmd from '../../util/output/cmd';
 import * as cli from '../../util/pkg-name';
 import cliPkg from '../../util/pkg';
@@ -66,12 +66,13 @@ import {
 import { importBuilders } from '../../util/build/import-builders';
 import { initCorepack, cleanupCorepack } from '../../util/build/corepack';
 import { sortBuilders } from '../../util/build/sort-builders';
-import { toEnumerableError } from '../../util/error';
+import { handleError, toEnumerableError } from '../../util/error';
 import { validateConfig } from '../../util/validate-config';
 import { setMonorepoDefaultSettings } from '../../util/build/monorepo';
 import { help } from '../help';
 import { buildCommand } from './command';
 import { scrubArgv } from '../../util/build/scrub-argv';
+import { getFlagsSpecification } from '../../util/get-flags-specification';
 
 type BuildResult = BuildResultV2 | BuildResultV3;
 
@@ -133,22 +134,26 @@ export default async function main(client: Client): Promise<number> {
     process.env.__VERCEL_BUILD_RUNNING = '1';
   }
 
-  // Parse CLI args
+  let parsedArgs = null;
-  const argv = getArgs(client.argv.slice(2), {
-    '--output': String,
-    '--prod': Boolean,
-    '--yes': Boolean,
-    '-y': '--yes',
-  });
 
-  if (argv['--help']) {
+  const flagsSpecification = getFlagsSpecification(buildCommand.options);
+
+  // Parse CLI args
+  try {
+    parsedArgs = parseArguments(client.argv.slice(2), flagsSpecification);
+  } catch (error) {
+    handleError(error);
+    return 1;
+  }
+
+  if (parsedArgs.flags['--help']) {
     output.print(help(buildCommand, { columns: client.stderr.columns }));
     return 2;
   }
 
   // Build `target` influences which environment variables will be used
-  const target = argv['--prod'] ? 'production' : 'preview';
+  const target = parsedArgs.flags['--prod'] ? 'production' : 'preview';
-  const yes = Boolean(argv['--yes']);
+  const yes = Boolean(parsedArgs.flags['--yes']);
 
   try {
     await validateNpmrc(cwd);
@@ -213,8 +218,8 @@ export default async function main(client: Client): Promise<number> {
 
   // Delete output directory from potential previous build
   const defaultOutputDir = join(cwd, projectRootDirectory, OUTPUT_DIR);
-  const outputDir = argv['--output']
+  const outputDir = parsedArgs.flags['--output']
-    ? resolve(argv['--output'])
+    ? resolve(parsedArgs.flags['--output'])
     : defaultOutputDir;
   await Promise.all([
     fs.remove(outputDir),

packages/cli/src/util/env/get-env-records.ts

@@ -70,7 +70,7 @@ export async function pullEnvRecords(
   );
   const query = new URLSearchParams();
 
-  let url = `/v1/env/pull/${projectId}`;
+  let url = `/v2/env/pull/${projectId}`;
 
   if (target) {
     url += `/${encodeURIComponent(target)}`;

packages/cli/test/fixtures/e2e/cli-extension-exit-code/package-lock.json

@@ -0,0 +1,32 @@
+{
+  "name": "cli-extension-exit-code",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "cli-extension-fail": "file:../cli-extension-fail"
+      }
+    },
+    "../cli-extension-fail": {
+      "bin": {
+        "vercel-fail": "bin.js"
+      }
+    },
+    "../cli-extension-whoami": {
+      "extraneous": true,
+      "bin": {
+        "vercel-mywhoami": "bin.js"
+      }
+    },
+    "node_modules/cli-extension-fail": {
+      "resolved": "../cli-extension-fail",
+      "link": true
+    }
+  },
+  "dependencies": {
+    "cli-extension-fail": {
+      "version": "file:../cli-extension-fail"
+    }
+  }
+}

packages/cli/test/fixtures/e2e/cli-extension-exit-code/package.json

@@ -0,0 +1,6 @@
+{
+  "private": true,
+  "dependencies": {
+    "cli-extension-fail": "file:../cli-extension-fail"
+  }
+}

packages/cli/test/fixtures/e2e/cli-extension-fail/bin.js

@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+process.exit(6);

packages/cli/test/fixtures/e2e/cli-extension-fail/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "cli-extension-fail",
+  "bin": {
+    "vercel-fail": "bin.js"
+  }
+}

packages/cli/test/integration-1.test.ts

@@ -917,9 +917,9 @@ test('Deploy `api-env` fixture and test `vercel env` command', async () => {
     expect(homeJson['MY_STDIN_VAR']).toBe('{"expect":"quotes"}');
     expect(homeJson['MY_DECRYPTABLE_SECRET_ENV']).toBe('decryptable value');
 
-    // system env vars are automatically exposed
+    // system env vars are hidden in dev
-    expect(apiJson['VERCEL']).toBe('1');
+    expect(apiJson['VERCEL']).toBeUndefined();
-    expect(homeJson['VERCEL']).toBe('1');
+    expect(homeJson['VERCEL']).toBeUndefined();
 
     // sleep before kill, otherwise the dev process doesn't clean up and exit properly
     await sleep(100);
@@ -949,7 +949,7 @@ test('Deploy `api-env` fixture and test `vercel env` command', async () => {
   async function vcEnvPullFetchSystemVars() {
     const { exitCode, stdout, stderr } = await execCli(
       binaryPath,
-      ['env', 'pull', '-y'],
+      ['env', 'pull', '-y', '--environment', 'production'],
       {
         cwd: target,
       }
@@ -963,7 +963,7 @@ test('Deploy `api-env` fixture and test `vercel env` command', async () => {
 
     expect(lines).toContain('VERCEL="1"');
     expect(lines).toContain('VERCEL_URL=""');
-    expect(lines).toContain('VERCEL_ENV="development"');
+    expect(lines).toContain('VERCEL_ENV="production"');
     expect(lines).toContain('VERCEL_GIT_PROVIDER=""');
     expect(lines).toContain('VERCEL_GIT_REPO_SLUG=""');
   }
@@ -980,22 +980,24 @@ test('Deploy `api-env` fixture and test `vercel env` command', async () => {
     const localhostNoProtocol = localhost[0].slice('http://'.length);
 
     const apiJson = await apiRes.json();
-    expect(apiJson['VERCEL']).toBe('1');
+    // environment variables are not set in dev
+    expect(apiJson['VERCEL']).toBeUndefined();
+    expect(apiJson['VERCEL_ENV']).toBeUndefined();
+    expect(apiJson['VERCEL_GIT_PROVIDER']).toBeUndefined();
+    expect(apiJson['VERCEL_GIT_REPO_SLUG']).toBeUndefined();
+    // except for these because vc dev
     expect(apiJson['VERCEL_URL']).toBe(localhostNoProtocol);
-    expect(apiJson['VERCEL_ENV']).toBe('development');
     expect(apiJson['VERCEL_REGION']).toBe('dev1');
-    expect(apiJson['VERCEL_GIT_PROVIDER']).toBe('');
-    expect(apiJson['VERCEL_GIT_REPO_SLUG']).toBe('');
 
     const homeUrl = localhost[0];
     const homeRes = await fetch(homeUrl);
     const homeJson = await homeRes.json();
-    expect(homeJson['VERCEL']).toBe('1');
+    expect(homeJson['VERCEL']).toBeUndefined();
     expect(homeJson['VERCEL_URL']).toBe(localhostNoProtocol);
-    expect(homeJson['VERCEL_ENV']).toBe('development');
+    expect(homeJson['VERCEL_ENV']).toBeUndefined();
-    expect(homeJson['VERCEL_REGION']).toBe(undefined);
+    expect(homeJson['VERCEL_REGION']).toBeUndefined();
-    expect(homeJson['VERCEL_GIT_PROVIDER']).toBe('');
+    expect(homeJson['VERCEL_GIT_PROVIDER']).toBeUndefined();
-    expect(homeJson['VERCEL_GIT_REPO_SLUG']).toBe('');
+    expect(homeJson['VERCEL_GIT_REPO_SLUG']).toBeUndefined();
 
     // sleep before kill, otherwise the dev process doesn't clean up and exit properly
     await sleep(100);

packages/cli/test/integration-3.test.ts

@@ -1255,7 +1255,7 @@ test('fail to deploy a Lambda with an incorrect value for maxDuration', async ()
 
   expect(output.exitCode, formatOutput(output)).toBe(1);
   expect(output.stderr).toMatch(
-    /maxDuration must be between 1 second and 10 seconds/gm
+    /maxDuration must be between \d+ second and \d+ seconds/gm
   );
 });
 
@@ -1327,6 +1327,19 @@ test('should invoke CLI extension', async () => {
   expect(output.stdout, formatted).toContain(`Username: ${contextName}`);
 });
 
+test('should pass through exit code for CLI extension', async () => {
+  const fixture = path.join(__dirname, 'fixtures/e2e/cli-extension-exit-code');
+
+  // Ensure the `.bin` is populated in the fixture
+  await runNpmInstall(fixture);
+
+  const output = await execCli(binaryPath, ['fail'], {
+    cwd: fixture,
+    reject: false,
+  });
+  expect(output.exitCode).toEqual(6);
+});
+
 // NOTE: Order matters here. This must be the last test in the file.
 test('default command should prompt login with empty auth.json', async () => {
   await clearAuthConfig();

packages/cli/test/mocks/project.ts

@@ -216,7 +216,7 @@ export function useProject(
     res.json(project);
   });
   client.scenario.get(
-    `/v1/env/pull/${project.id}/:target?/:gitBranch?`,
+    `/v2/env/pull/${project.id}/:target?/:gitBranch?`,
     (req, res) => {
       const target =
         typeof req.params.target === 'string'
@@ -390,7 +390,7 @@ function exposeSystemEnvs(
 ) {
   const envs: Env = {};
 
-  if (autoExposeSystemEnvs) {
+  if (autoExposeSystemEnvs && target !== 'development') {
     envs['VERCEL'] = '1';
     envs['VERCEL_ENV'] = target || 'development';
 

packages/cli/test/unit/commands/env.test.ts

@@ -205,10 +205,17 @@ describe('env', () => {
       });
       const cwd = setupUnitFixture('vercel-env-pull');
       client.cwd = cwd;
-      client.setArgv('env', 'pull', 'other.env', '--yes');
+      client.setArgv(
+        'env',
+        'pull',
+        'other.env',
+        '--yes',
+        '--environment',
+        'production'
+      );
       const exitCodePromise = env(client);
       await expect(client.stderr).toOutput(
-        'Downloading `development` Environment Variables for Project vercel-env-pull'
+        'Downloading `production` Environment Variables for Project vercel-env-pull'
       );
       await expect(client.stderr).toOutput('Created other.env file');
       await expect(client.stderr).not.toOutput('and added it to .gitignore');
@@ -218,10 +225,44 @@ describe('env', () => {
 
       const productionFileHasVercelEnv = rawDevEnv
         .toString()
-        .includes('VERCEL_ENV="development"');
+        .includes('VERCEL_ENV="production"');
       expect(productionFileHasVercelEnv).toBeTruthy();
     });
 
+    it('should not expose system env variables in dev', async () => {
+      useUser();
+      useTeams('team_dummy');
+      useProject({
+        ...defaultProject,
+        id: 'vercel-env-pull',
+        name: 'vercel-env-pull',
+        autoExposeSystemEnvs: true,
+      });
+      const cwd = setupUnitFixture('vercel-env-pull');
+      client.cwd = cwd;
+      client.setArgv('env', 'pull', 'other.env', '--yes');
+      const exitCodePromise = env(client);
+      await expect(client.stderr).toOutput(
+        'Downloading `development` Environment Variables for Project vercel-env-pull'
+      );
+      await expect(client.stderr).toOutput('Created other.env file');
+      await expect(client.stderr).not.toOutput('and added it to .gitignore');
+      await expect(exitCodePromise).resolves.toEqual(0);
+
+      const devEnv = (
+        await fs.readFile(path.join(cwd, 'other.env'))
+      ).toString();
+
+      const devFileHasVercelEnv = [
+        'VERCEL',
+        'VERCEL_ENV',
+        'VERCEL_URL',
+        'VERCEL_REGION',
+        'VERCEL_DEPLOYMENT_ID',
+      ].some(envVar => devEnv.includes(envVar));
+      expect(devFileHasVercelEnv).toBeFalsy();
+    });
+
     it('should show a delta string', async () => {
       const cwd = setupUnitFixture('vercel-env-pull-delta');
       client.cwd = cwd;

packages/client/CHANGELOG.md

@@ -1,5 +1,47 @@
 # @vercel/client
 
+## 13.2.8
+
+### Patch Changes
+
+- Updated dependencies [[`83741a0eb`](https://github.com/vercel/vercel/commit/83741a0eb9e44457b083e8790a11eb89984e6357)]:
+  - @vercel/build-utils@8.2.1
+
+## 13.2.7
+
+### Patch Changes
+
+- Updated dependencies [[`d3c1267e2`](https://github.com/vercel/vercel/commit/d3c1267e24082789ea6382cf6af81dd40df288ff), [`ccd7eb1fb`](https://github.com/vercel/vercel/commit/ccd7eb1fb78f7ac9effdbe1935de3bda82c97fe3)]:
+  - @vercel/build-utils@8.2.0
+
+## 13.2.6
+
+### Patch Changes
+
+- Updated dependencies [[`ad6945435`](https://github.com/vercel/vercel/commit/ad69454352b519b2b0ed326f245c779530554bf2)]:
+  - @vercel/build-utils@8.1.3
+
+## 13.2.5
+
+### Patch Changes
+
+- Updated dependencies [[`1682ad43d`](https://github.com/vercel/vercel/commit/1682ad43d0064b22b1248a7e946746b838f00076)]:
+  - @vercel/build-utils@8.1.2
+
+## 13.2.4
+
+### Patch Changes
+
+- Updated dependencies [[`2f7a6ed5f`](https://github.com/vercel/vercel/commit/2f7a6ed5f92d454000f92247d3b6548e2064f4e6)]:
+  - @vercel/build-utils@8.1.1
+
+## 13.2.3
+
+### Patch Changes
+
+- Updated dependencies [[`5014b1e82`](https://github.com/vercel/vercel/commit/5014b1e82a46181baeb727ffe6d14000b6a4b1d7)]:
+  - @vercel/build-utils@8.1.0
+
 ## 13.2.2
 
 ### Patch Changes

packages/client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/client",
-  "version": "13.2.2",
+  "version": "13.2.8",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "homepage": "https://vercel.com",
@@ -37,7 +37,7 @@
     "typescript": "4.9.5"
   },
   "dependencies": {
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/error-utils": "2.0.2",
     "@vercel/routing-utils": "3.1.0",
     "@zeit/fetch": "5.2.0",

packages/fs-detectors/package.json

@@ -37,7 +37,7 @@
     "@types/minimatch": "3.0.5",
     "@types/node": "14.18.33",
     "@types/semver": "7.3.10",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "jest-junit": "16.0.0",
     "typescript": "4.9.5"
   }

packages/functions/CHANGELOG.md

@@ -0,0 +1,19 @@
+# @vercel/functions
+
+## 1.0.2
+
+### Patch Changes
+
+- Convert package to CommonJS ([#11569](https://github.com/vercel/vercel/pull/11569))
+
+## 1.0.1
+
+### Patch Changes
+
+- Don't throw error if context is missing ([`0817527f9`](https://github.com/vercel/vercel/commit/0817527f9e9d0d5fceb73f21e695089349a96d3e))
+
+## 1.0.0
+
+### Major Changes
+
+- Initial release ([#11553](https://github.com/vercel/vercel/pull/11553))

packages/functions/index.d.ts

@@ -0,0 +1,17 @@
+/**
+ * Extends the lifetime of the request handler for the lifetime of the given {@link Promise}
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/ExtendableEvent/waitUntil
+ *
+ * @param promise The promise to wait for.
+ * @example
+ *
+ * ```
+ * import { waitUntil } from '@vercel/functions';
+ *
+ * export function GET(request) {
+ *   waitUntil(fetch('https://vercel.com'));
+ *   return new Response('OK');
+ * }
+ * ```
+ */
+export function waitUntil(promise: Promise<unknown>): void;

packages/functions/index.js

@@ -0,0 +1,16 @@
+/* global globalThis */
+
+exports.waitUntil = promise => {
+  if (
+    promise === null ||
+    typeof promise !== 'object' ||
+    typeof promise.then !== 'function'
+  ) {
+    throw new TypeError(
+      `waitUntil can only be called with a Promise, got ${typeof promise}`
+    );
+  }
+
+  const ctx = globalThis[Symbol.for('@vercel/request-context')]?.get?.() ?? {};
+  ctx.waitUntil?.(promise);
+};

packages/functions/index.test.js

@@ -0,0 +1,42 @@
+/* global globalThis */
+
+import { vi, expect, test } from 'vitest';
+
+import { waitUntil } from '.';
+
+test.each([
+  {},
+  () => {},
+  function () {},
+  NaN,
+  1,
+  false,
+  undefined,
+  null,
+  [],
+  '▲',
+])('waitUntil throws when called with %s', input => {
+  expect(() => waitUntil(input)).toThrow(TypeError);
+  expect(() => waitUntil(input)).toThrow(
+    `waitUntil can only be called with a Promise, got ${typeof input}`
+  );
+});
+
+test.each([null, undefined, {}])(
+  'waitUntil does not throw an error when context is %s',
+  input => {
+    const promise = Promise.resolve();
+    globalThis[Symbol.for('@vercel/request-context')] = input;
+    expect(() => waitUntil(promise)).not.toThrow();
+  }
+);
+
+test('waitUntil calls ctx.waitUntil when available', async () => {
+  const promise = Promise.resolve();
+  const waitUntilMock = vi.fn().mockReturnValue(promise);
+  globalThis[Symbol.for('@vercel/request-context')] = {
+    get: () => ({ waitUntil: waitUntilMock }),
+  };
+  waitUntil(promise);
+  expect(waitUntilMock).toHaveBeenCalledWith(promise);
+});

packages/functions/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@vercel/functions",
+  "description": "Runtime functions to be used with your Vercel Functions",
+  "homepage": "https://vercel.com",
+  "version": "1.0.2",
+  "types": "index.d.ts",
+  "main": "index.js",
+  "repository": {
+    "directory": "packages/functions",
+    "type": "git",
+    "url": "git+https://github.com/vercel/vercel.git"
+  },
+  "bugs": {
+    "url": "https://github.com/vercel/vercel/issues"
+  },
+  "devDependencies": {
+    "vitest": "1.3.1"
+  },
+  "engines": {
+    "node": ">= 16"
+  },
+  "files": [
+    "index.d.ts",
+    "index.js"
+  ],
+  "scripts": {
+    "test": "vitest"
+  },
+  "license": "Apache-2.0",
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/gatsby-plugin-vercel-builder/CHANGELOG.md

@@ -1,5 +1,47 @@
 # @vercel/gatsby-plugin-vercel-builder
 
+## 2.0.32
+
+### Patch Changes
+
+- Updated dependencies [[`83741a0eb`](https://github.com/vercel/vercel/commit/83741a0eb9e44457b083e8790a11eb89984e6357)]:
+  - @vercel/build-utils@8.2.1
+
+## 2.0.31
+
+### Patch Changes
+
+- Updated dependencies [[`d3c1267e2`](https://github.com/vercel/vercel/commit/d3c1267e24082789ea6382cf6af81dd40df288ff), [`ccd7eb1fb`](https://github.com/vercel/vercel/commit/ccd7eb1fb78f7ac9effdbe1935de3bda82c97fe3)]:
+  - @vercel/build-utils@8.2.0
+
+## 2.0.30
+
+### Patch Changes
+
+- Updated dependencies [[`ad6945435`](https://github.com/vercel/vercel/commit/ad69454352b519b2b0ed326f245c779530554bf2)]:
+  - @vercel/build-utils@8.1.3
+
+## 2.0.29
+
+### Patch Changes
+
+- Updated dependencies [[`1682ad43d`](https://github.com/vercel/vercel/commit/1682ad43d0064b22b1248a7e946746b838f00076)]:
+  - @vercel/build-utils@8.1.2
+
+## 2.0.28
+
+### Patch Changes
+
+- Updated dependencies [[`2f7a6ed5f`](https://github.com/vercel/vercel/commit/2f7a6ed5f92d454000f92247d3b6548e2064f4e6)]:
+  - @vercel/build-utils@8.1.1
+
+## 2.0.27
+
+### Patch Changes
+
+- Updated dependencies [[`5014b1e82`](https://github.com/vercel/vercel/commit/5014b1e82a46181baeb727ffe6d14000b6a4b1d7)]:
+  - @vercel/build-utils@8.1.0
+
 ## 2.0.26
 
 ### Patch Changes

packages/gatsby-plugin-vercel-builder/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/gatsby-plugin-vercel-builder",
-  "version": "2.0.26",
+  "version": "2.0.32",
   "main": "dist/index.js",
   "files": [
     "dist",
@@ -20,7 +20,7 @@
   },
   "dependencies": {
     "@sinclair/typebox": "0.25.24",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/routing-utils": "3.1.0",
     "esbuild": "0.14.47",
     "etag": "1.8.1",

packages/go/package.json

@@ -29,7 +29,7 @@
     "@types/node-fetch": "^2.3.0",
     "@types/tar": "6.1.5",
     "@types/yauzl-promise": "2.1.0",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "async-retry": "1.3.3",
     "execa": "^1.0.0",
     "fs-extra": "^7.0.0",

packages/hydrogen/package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "@types/jest": "27.5.1",
     "@types/node": "14.18.33",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "execa": "3.2.0",
     "fs-extra": "11.1.0",
     "jest-junit": "16.0.0"

packages/hydrogen/src/build.ts

@@ -51,11 +51,15 @@ export const build: BuildV2 = async ({
   );
 
   const spawnOpts = getSpawnOptions(meta, nodeVersion);
-  const { cliType, lockfileVersion } = await scanParentDirs(entrypointDir);
+  const { cliType, lockfileVersion, packageJson } = await scanParentDirs(
+    entrypointDir,
+    true
+  );
 
   spawnOpts.env = getEnvForPackageManager({
     cliType,
     lockfileVersion,
+    packageJsonPackageManager: packageJson?.packageManager,
     nodeVersion,
     env: spawnOpts.env || {},
   });

packages/next/CHANGELOG.md

@@ -1,5 +1,83 @@
 # @vercel/next
 
+## 4.2.14
+
+### Patch Changes
+
+- Don't create streaming lambdas for pages router routes ([#11660](https://github.com/vercel/vercel/pull/11660))
+
+- Ensure user rewrites still match to action outputs ([#11628](https://github.com/vercel/vercel/pull/11628))
+
+## 4.2.13
+
+### Patch Changes
+
+- Fix static case for detecting when a page supports PPR ([#11635](https://github.com/vercel/vercel/pull/11635))
+
+- Fix related to erroring when a prefetch route is not provided but the route is PPR enabled ([#11638](https://github.com/vercel/vercel/pull/11638))
+
+## 4.2.12
+
+### Patch Changes
+
+- Support incremental PPR for large applications ([#11625](https://github.com/vercel/vercel/pull/11625))
+
+## 4.2.11
+
+### Patch Changes
+
+- normalize source file locations for special metadata files ([#11579](https://github.com/vercel/vercel/pull/11579))
+
+## 4.2.10
+
+### Patch Changes
+
+- skip action rewrites for RSC requests ([#11576](https://github.com/vercel/vercel/pull/11576))
+
+- Bump `@vercel/nft@0.27.0` ([#11580](https://github.com/vercel/vercel/pull/11580))
+
+## 4.2.9
+
+### Patch Changes
+
+- Support incremental partial prerendering ([#11560](https://github.com/vercel/vercel/pull/11560))
+
+- ensure `.action` outputs are created for edge functions ([#11568](https://github.com/vercel/vercel/pull/11568))
+
+- ([#11566](https://github.com/vercel/vercel/pull/11566))
+
+## 4.2.8
+
+### Patch Changes
+
+- Fix missing initial RSC headers ([#11552](https://github.com/vercel/vercel/pull/11552))
+
+- Remove .prefetch.rsc rewrites for non-PPR ([#11540](https://github.com/vercel/vercel/pull/11540))
+
+- [next] rename middleware manifest env ([#11549](https://github.com/vercel/vercel/pull/11549))
+
+## 4.2.7
+
+### Patch Changes
+
+- Fix missing .rsc outputs for pages prerenders ([#11503](https://github.com/vercel/vercel/pull/11503))
+
+- Fix base path app index RSC handling ([#11528](https://github.com/vercel/vercel/pull/11528))
+
+- Fix interception routes PPR route handling ([#11527](https://github.com/vercel/vercel/pull/11527))
+
+## 4.2.6
+
+### Patch Changes
+
+- [next] Update test fixture version ([#11514](https://github.com/vercel/vercel/pull/11514))
+
+## 4.2.5
+
+### Patch Changes
+
+- Only rewrite next-action requests to `.action` handlers ([#11504](https://github.com/vercel/vercel/pull/11504))
+
 ## 4.2.4
 
 ### Patch Changes

packages/next/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vercel/next",
-  "version": "4.2.4",
+  "version": "4.2.14",
   "license": "Apache-2.0",
   "main": "./dist/index",
   "homepage": "https://vercel.com/docs/runtimes#official-runtimes/next-js",
@@ -23,7 +23,7 @@
     "dist"
   ],
   "dependencies": {
-    "@vercel/nft": "0.26.4"
+    "@vercel/nft": "0.27.0"
   },
   "devDependencies": {
     "@types/aws-lambda": "8.10.19",
@@ -40,7 +40,7 @@
     "@types/semver": "6.0.0",
     "@types/text-table": "0.2.1",
     "@types/webpack-sources": "3.2.0",
-    "@vercel/build-utils": "8.0.0",
+    "@vercel/build-utils": "8.2.1",
     "@vercel/routing-utils": "3.1.0",
     "async-sema": "3.0.1",
     "buffer-crc32": "0.2.13",

packages/next/src/index.ts

@@ -257,10 +257,15 @@ export const build: BuildV2 = async ({
   const nextVersionRange = await getNextVersionRange(entryPath);
   const nodeVersion = await getNodeVersion(entryPath, undefined, config, meta);
   const spawnOpts = getSpawnOptions(meta, nodeVersion);
-  const { cliType, lockfileVersion } = await scanParentDirs(entryPath);
+  const { cliType, lockfileVersion, packageJson } = await scanParentDirs(
+    entryPath,
+    true
+  );
+
   spawnOpts.env = getEnvForPackageManager({
     cliType,
     lockfileVersion,
+    packageJsonPackageManager: packageJson?.packageManager,
     nodeVersion,
     env: spawnOpts.env || {},
   });
@@ -1353,6 +1358,11 @@ export const build: BuildV2 = async ({
       experimentalPPRRoutes.add(route);
     }
 
+    const isAppPPREnabled = requiredServerFilesManifest
+      ? requiredServerFilesManifest.config.experimental?.ppr === true ||
+        requiredServerFilesManifest.config.experimental?.ppr === 'incremental'
+      : false;
+
     if (requiredServerFilesManifest) {
       if (!routesManifest) {
         throw new Error(
@@ -1408,6 +1418,7 @@ export const build: BuildV2 = async ({
         hasIsr500Page,
         variantsManifest,
         experimentalPPRRoutes,
+        isAppPPREnabled,
       });
     }
 
@@ -1927,7 +1938,8 @@ export const build: BuildV2 = async ({
       canUsePreviewMode,
       bypassToken: prerenderManifest.bypassToken || '',
       isServerMode,
-      experimentalPPRRoutes,
+      isAppPPREnabled: false,
+      hasActionOutputSupport: false,
     }).then(arr =>
       localizeDynamicRoutes(
         arr,
@@ -1957,7 +1969,8 @@ export const build: BuildV2 = async ({
         canUsePreviewMode,
         bypassToken: prerenderManifest.bypassToken || '',
         isServerMode,
-        experimentalPPRRoutes,
+        isAppPPREnabled: false,
+        hasActionOutputSupport: false,
       }).then(arr =>
         arr.map(route => {
           route.src = route.src.replace('^', `^${dynamicPrefix}`);
@@ -2155,6 +2168,7 @@ export const build: BuildV2 = async ({
       appPathRoutesManifest,
       isSharedLambdas,
       canUsePreviewMode,
+      isAppPPREnabled: false,
     });
 
     await Promise.all(

packages/next/src/server-build.ts

@@ -51,6 +51,7 @@ import {
   normalizePrefetches,
   CreateLambdaFromPseudoLayersOptions,
   getPostponeResumePathname,
+  LambdaGroup,
   MAX_UNCOMPRESSED_LAMBDA_SIZE,
 } from './utils';
 import {
@@ -68,6 +69,7 @@ const CORRECT_NOT_FOUND_ROUTES_VERSION = 'v12.0.1';
 const CORRECT_MIDDLEWARE_ORDER_VERSION = 'v12.1.7-canary.29';
 const NEXT_DATA_MIDDLEWARE_RESOLVING_VERSION = 'v12.1.7-canary.33';
 const EMPTY_ALLOW_QUERY_FOR_PRERENDERED_VERSION = 'v12.2.0';
+const ACTION_OUTPUT_SUPPORT_VERSION = 'v14.2.2';
 const CORRECTED_MANIFESTS_VERSION = 'v12.2.0';
 
 // Ideally this should be in a Next.js manifest so we can change it in
@@ -142,6 +144,7 @@ export async function serverBuild({
   requiredServerFilesManifest,
   variantsManifest,
   experimentalPPRRoutes,
+  isAppPPREnabled,
 }: {
   appPathRoutesManifest?: Record<string, string>;
   dynamicPages: string[];
@@ -183,7 +186,15 @@ export async function serverBuild({
   requiredServerFilesManifest: NextRequiredServerFilesManifest;
   variantsManifest: VariantsManifest | null;
   experimentalPPRRoutes: ReadonlySet<string>;
+  isAppPPREnabled: boolean;
 }): Promise<BuildResult> {
+  if (isAppPPREnabled) {
+    debug(
+      'experimentalPPRRoutes',
+      JSON.stringify(Array.from(experimentalPPRRoutes))
+    );
+  }
+
   lambdaPages = Object.assign({}, lambdaPages, lambdaAppPaths);
 
   const experimentalAllowBundling = Boolean(
@@ -199,6 +210,9 @@ export async function serverBuild({
     nextVersion,
     EMPTY_ALLOW_QUERY_FOR_PRERENDERED_VERSION
   );
+  const hasActionOutputSupport =
+    semver.gte(nextVersion, ACTION_OUTPUT_SUPPORT_VERSION) &&
+    Boolean(process.env.NEXT_EXPERIMENTAL_STREAMING_ACTIONS);
   const projectDir = requiredServerFilesManifest.relativeAppDir
     ? path.join(baseDir, requiredServerFilesManifest.relativeAppDir)
     : requiredServerFilesManifest.appDir || entryPath;
@@ -212,10 +226,6 @@ export async function serverBuild({
     }
   }
 
-  const experimental = {
-    ppr: requiredServerFilesManifest.config.experimental?.ppr === true,
-  };
-
   let appRscPrefetches: UnwrapPromise<ReturnType<typeof glob>> = {};
   let appBuildTraces: UnwrapPromise<ReturnType<typeof glob>> = {};
   let appDir: string | null = null;
@@ -223,9 +233,7 @@ export async function serverBuild({
   if (appPathRoutesManifest) {
     appDir = path.join(pagesDir, '../app');
     appBuildTraces = await glob('**/*.js.nft.json', appDir);
-
+    appRscPrefetches = isAppPPREnabled
-    // TODO: maybe?
-    appRscPrefetches = experimental.ppr
       ? {}
       : await glob(`**/*${RSC_PREFETCH_SUFFIX}`, appDir);
 
@@ -244,9 +252,19 @@ export async function serverBuild({
 
     for (const rewrite of afterFilesRewrites) {
       if (rewrite.src && rewrite.dest) {
+        // ensures that userland rewrites are still correctly matched to their special outputs
+        // PPR should match .prefetch.rsc, .rsc, and .action
+        // non-PPR should match .rsc and .action
+        // we only add `.action` handling to the regex if flagged on in the build
+        const rscSuffix = isAppPPREnabled
+          ? `(\\.prefetch)?\\.rsc${hasActionOutputSupport ? '|\\.action' : ''}`
+          : hasActionOutputSupport
+          ? '(\\.action|\\.rsc)'
+          : '\\.rsc';
+
         rewrite.src = rewrite.src.replace(
           /\/?\(\?:\/\)\?/,
-          '(?<rscsuff>(\\.prefetch)?\\.rsc)?(?:/)?'
+          `(?<rscsuff>${rscSuffix})?(?:/)?`
         );
         let destQueryIndex = rewrite.dest.indexOf('?');
 
@@ -926,11 +944,24 @@ export async function serverBuild({
       inversedAppPathManifest,
     });
 
+    const appRouterStreamingActionLambdaGroups: LambdaGroup[] = [];
+
     for (const group of appRouterLambdaGroups) {
       if (!group.isPrerenders || group.isExperimentalPPR) {
         group.isStreaming = true;
       }
+
       group.isAppRouter = true;
+
+      // We create a streaming variant of the Prerender lambda group
+      // to support actions that are part of a Prerender
+      if (hasActionOutputSupport) {
+        appRouterStreamingActionLambdaGroups.push({
+          ...group,
+          isActionLambda: true,
+          isStreaming: true,
+        });
+      }
     }
 
     for (const group of appRouteHandlersLambdaGroups) {
@@ -967,18 +998,33 @@ export async function serverBuild({
           apiLambdaGroups: apiLambdaGroups.map(group => ({
             pages: group.pages,
             isPrerender: group.isPrerenders,
+            isStreaming: group.isStreaming,
+            isExperimentalPPR: group.isExperimentalPPR,
             pseudoLayerBytes: group.pseudoLayerBytes,
             uncompressedLayerBytes: group.pseudoLayerUncompressedBytes,
           })),
           pageLambdaGroups: pageLambdaGroups.map(group => ({
             pages: group.pages,
             isPrerender: group.isPrerenders,
+            isStreaming: group.isStreaming,
+            isExperimentalPPR: group.isExperimentalPPR,
             pseudoLayerBytes: group.pseudoLayerBytes,
             uncompressedLayerBytes: group.pseudoLayerUncompressedBytes,
           })),
           appRouterLambdaGroups: appRouterLambdaGroups.map(group => ({
             pages: group.pages,
             isPrerender: group.isPrerenders,
+            isStreaming: group.isStreaming,
+            isExperimentalPPR: group.isExperimentalPPR,
+            pseudoLayerBytes: group.pseudoLayerBytes,
+            uncompressedLayerBytes: group.pseudoLayerUncompressedBytes,
+          })),
+          appRouterStreamingPrerenderLambdaGroups:
+            appRouterStreamingActionLambdaGroups.map(group => ({
+              pages: group.pages,
+              isPrerender: group.isPrerenders,
+              isStreaming: group.isStreaming,
+              isExperimentalPPR: group.isExperimentalPPR,
               pseudoLayerBytes: group.pseudoLayerBytes,
               uncompressedLayerBytes: group.pseudoLayerUncompressedBytes,
             })),
@@ -986,6 +1032,8 @@ export async function serverBuild({
             group => ({
               pages: group.pages,
               isPrerender: group.isPrerenders,
+              isStreaming: group.isStreaming,
+              isExperimentalPPR: group.isExperimentalPPR,
               pseudoLayerBytes: group.pseudoLayerBytes,
               uncompressedLayerBytes: group.pseudoLayerUncompressedBytes,
             })
@@ -999,6 +1047,7 @@ export async function serverBuild({
     const combinedGroups = [
       ...pageLambdaGroups,
       ...appRouterLambdaGroups,
+      ...appRouterStreamingActionLambdaGroups,
       ...apiLambdaGroups,
       ...appRouteHandlersLambdaGroups,
     ];
@@ -1164,15 +1213,10 @@ export async function serverBuild({
 
       const lambda = await createLambdaFromPseudoLayers(options);
 
-      // This is a PPR lambda if it's an App Page with the PPR experimental flag
-      // enabled.
-      const isPPR =
-        experimental.ppr && group.isAppRouter && !group.isAppRouteHandler;
-
       // If PPR is enabled and this is an App Page, create the non-streaming
       // lambda for the page for revalidation.
       let revalidate: NodejsLambda | undefined;
-      if (isPPR) {
+      if (group.isExperimentalPPR) {
         if (!options.isStreaming) {
           throw new Error("Invariant: PPR lambda isn't streaming");
         }
@@ -1189,14 +1233,11 @@ export async function serverBuild({
         // This is the name of the page, where the root is `index`.
         const pageName = pageFilename.replace(/\.js$/, '');
 
-        // This is the name of the page prefixed with a `/`, where the root is
-        // `/index`.
-        const pagePath = path.posix.join('/', pageName);
-
         // This is the routable pathname for the page, where the root is `/`.
-        const pagePathname = pagePath === '/index' ? '/' : pagePath;
+        const pagePathname = normalizePage(pageName);
 
         let isPrerender = prerenderRoutes.has(pagePathname);
+        const isRoutePPREnabled = experimentalPPRRoutes.has(pagePathname);
 
         if (!isPrerender && routesManifest?.i18n) {
           isPrerender = routesManifest.i18n.locales.some(locale => {
@@ -1208,8 +1249,13 @@ export async function serverBuild({
 
         let outputName = path.posix.join(entryDirectory, pageName);
 
+        if (group.isActionLambda) {
+          // give the streaming prerenders a .action suffix
+          outputName = `${outputName}.action`;
+        }
+
         // If this is a PPR page, then we should prefix the output name.
-        if (isPPR) {
+        if (isRoutePPREnabled) {
           if (!revalidate) {
             throw new Error("Invariant: PPR lambda isn't set");
           }
@@ -1290,6 +1336,13 @@ export async function serverBuild({
     console.timeEnd(lambdaCreationLabel);
   }
 
+  if (isAppPPREnabled) {
+    debug(
+      'experimentalStreamingLambdaPaths',
+      JSON.stringify(Array.from(experimentalStreamingLambdaPaths))
+    );
+  }
+
   const prerenderRoute = onPrerenderRoute({
     appDir,
     pagesDir,
@@ -1309,6 +1362,7 @@ export async function serverBuild({
     hasPages404: routesManifest.pages404,
     isCorrectNotFoundRoutes,
     isEmptyAllowQueryForPrendered,
+    isAppPPREnabled,
   });
 
   await Promise.all(
@@ -1377,7 +1431,8 @@ export async function serverBuild({
     bypassToken: prerenderManifest.bypassToken || '',
     isServerMode: true,
     dynamicMiddlewareRouteMap: middleware.dynamicRouteMap,
-    experimentalPPRRoutes,
+    isAppPPREnabled,
+    hasActionOutputSupport,
   }).then(arr =>
     localizeDynamicRoutes(
       arr,
@@ -1557,10 +1612,23 @@ export async function serverBuild({
 
       if (lambdas[pathname]) {
         lambdas[`${pathname}.rsc`] = lambdas[pathname];
+
+        if (isAppPPREnabled) {
+          lambdas[`${pathname}${RSC_PREFETCH_SUFFIX}`] = lambdas[pathname];
+        }
       }
 
       if (edgeFunctions[pathname]) {
         edgeFunctions[`${pathname}.rsc`] = edgeFunctions[pathname];
+
+        if (isAppPPREnabled) {
+          edgeFunctions[`${pathname}${RSC_PREFETCH_SUFFIX}`] =
+            edgeFunctions[pathname];
+        }
+
+        if (hasActionOutputSupport) {
+          edgeFunctions[`${pathname}.action`] = edgeFunctions[pathname];
+        }
       }
     }
   }
@@ -1572,7 +1640,7 @@ export async function serverBuild({
     'RSC, Next-Router-State-Tree, Next-Router-Prefetch';
   const appNotFoundPath = path.posix.join('.', entryDirectory, '_not-found');
 
-  if (experimental.ppr && !rscPrefetchHeader) {
+  if (isAppPPREnabled && !rscPrefetchHeader) {
     throw new Error("Invariant: cannot use PPR without 'rsc.prefetchHeader'");
   }
 
@@ -1580,7 +1648,7 @@ export async function serverBuild({
   // all the routes that support it (and are listed) have configured lambdas.
   // This only applies to routes that do not have fallbacks enabled (these are
   // routes that have `dynamicParams =  false` defined.
-  if (experimental.ppr) {
+  if (isAppPPREnabled) {
     for (const { srcRoute, dataRoute, experimentalPPR } of Object.values(
       prerenderManifest.staticRoutes
     )) {
@@ -1863,7 +1931,7 @@ export async function serverBuild({
 
       ...(appDir
         ? [
-            ...(rscPrefetchHeader
+            ...(rscPrefetchHeader && isAppPPREnabled
               ? [
                   {
                     src: `^${path.posix.join('/', entryDirectory, '/')}`,
@@ -1905,9 +1973,56 @@ export async function serverBuild({
                   },
                 ]
               : []),
-
+            ...(hasActionOutputSupport
+              ? [
+                  // Create rewrites for streaming prerenders (.action routes)
+                  // This contains separate rewrites for each possible "has" (action header, or content-type)
+                  // Also includes separate handling for index routes which should match to /index.action.
+                  // This follows the same pattern as the rewrites for .rsc files.
                   {
-              src: `^${path.posix.join('/', entryDirectory, '/')}`,
+                    src: `^${path.posix.join('/', entryDirectory, '/?')}`,
+                    dest: path.posix.join('/', entryDirectory, '/index.action'),
+                    has: [
+                      {
+                        type: 'header',
+                        key: 'next-action',
+                      },
+                    ],
+                    missing: [
+                      {
+                        type: 'header',
+                        key: rscHeader,
+                      },
+                    ],
+                    continue: true,
+                    override: true,
+                  },
+                  {
+                    src: `^${path.posix.join(
+                      '/',
+                      entryDirectory,
+                      '/((?!.+\\.action).+?)(?:/)?$'
+                    )}`,
+                    dest: path.posix.join('/', entryDirectory, '/$1.action'),
+                    has: [
+                      {
+                        type: 'header',
+                        key: 'next-action',
+                      },
+                    ],
+                    missing: [
+                      {
+                        type: 'header',
+                        key: rscHeader,
+                      },
+                    ],
+                    continue: true,
+                    override: true,
+                  },
+                ]
+              : []),
+            {
+              src: `^${path.posix.join('/', entryDirectory, '/?')}`,
               has: [
                 {
                   type: 'header',
@@ -1970,47 +2085,6 @@ export async function serverBuild({
           ]
         : []),
 
-      ...(rscPrefetchHeader && !experimental.ppr
-        ? [
-            {
-              src: path.posix.join(
-                '/',
-                entryDirectory,
-                `/__index${RSC_PREFETCH_SUFFIX}`
-              ),
-              dest: path.posix.join('/', entryDirectory, '/index.rsc'),
-              has: [
-                {
-                  type: 'header',
-                  key: rscPrefetchHeader,
-                },
-              ],
-              continue: true,
-              override: true,
-            },
-            {
-              src: `^${path.posix.join(
-                '/',
-                entryDirectory,
-                `/(.+?)${RSC_PREFETCH_SUFFIX}(?:/)?$`
-              )}`,
-              dest: path.posix.join(
-                '/',
-                entryDirectory,
-                `/$1${experimental.ppr ? RSC_PREFETCH_SUFFIX : '.rsc'}`
-              ),
-              has: [
-                {
-                  type: 'header',
-                  key: rscPrefetchHeader,
-                },
-              ],
-              continue: true,
-              override: true,
-            },
-          ]
-        : []),
-
       // These need to come before handle: miss or else they are grouped
       // with that routing section
       ...afterFilesRewrites,

packages/next/src/utils.ts

@@ -192,8 +192,12 @@ function normalizePage(page: string): string {
   if (!page.startsWith('/')) {
     page = `/${page}`;
   }
-  // remove '/index' from the end
+
-  page = page.replace(/\/index$/, '/');
+  // Replace the `/index` with `/`
+  if (page === '/index') {
+    page = '/';
+  }
+
   return page;
 }
 
@@ -320,7 +324,8 @@ export async function getDynamicRoutes({
   bypassToken,
   isServerMode,
   dynamicMiddlewareRouteMap,
-  experimentalPPRRoutes,
+  hasActionOutputSupport,
+  isAppPPREnabled,
 }: {
   entryPath: string;
   entryDirectory: string;
@@ -332,7 +337,8 @@ export async function getDynamicRoutes({
   bypassToken?: string;
   isServerMode?: boolean;
   dynamicMiddlewareRouteMap?: ReadonlyMap<string, RouteWithSrc>;
-  experimentalPPRRoutes: ReadonlySet<string>;
+  hasActionOutputSupport: boolean;
+  isAppPPREnabled: boolean;
 }): Promise<RouteWithSrc[]> {
   if (routesManifest) {
     switch (routesManifest.version) {
@@ -406,7 +412,7 @@ export async function getDynamicRoutes({
             ];
           }
 
-          if (experimentalPPRRoutes.has(page)) {
+          if (isAppPPREnabled) {
             let dest = route.dest?.replace(/($|\?)/, '.prefetch.rsc$1');
 
             if (page === '/' || page === '/index') {
@@ -423,6 +429,16 @@ export async function getDynamicRoutes({
             });
           }
 
+          if (hasActionOutputSupport) {
+            routes.push({
+              ...route,
+              src: route.src.replace(
+                new RegExp(escapeStringRegexp('(?:/)?$')),
+                '(?<nxtsuffix>(?:\\.action|\\.rsc))(?:/)?$'
+              ),
+              dest: route.dest?.replace(/($|\?)/, '$nxtsuffix$1'),
+            });
+          } else {
             routes.push({
               ...route,
               src: route.src.replace(
@@ -431,6 +447,7 @@ export async function getDynamicRoutes({
               ),
               dest: route.dest?.replace(/($|\?)/, '.rsc$1'),
             });
+          }
 
           routes.push(route);
         }
@@ -1426,6 +1443,13 @@ async function getSourceFilePathFromPage({
     }
   }
 
+  // if we got here, and didn't find a source not-found file, then it was the one injected
+  // by Next.js. There's no need to warn or return a source file in this case, as it won't have
+  // any configuration applied to it.
+  if (page === '/_not-found/page') {
+    return '';
+  }
+
   console.log(
     `WARNING: Unable to find source file for page ${page} with extensions: ${extensionsToTry.join(
       ', '
@@ -1485,8 +1509,9 @@ export type LambdaGroup = {
   isAppRouter?: boolean;
   isAppRouteHandler?: boolean;
   isStreaming?: boolean;
-  isPrerenders?: boolean;
+  readonly isPrerenders: boolean;
-  isExperimentalPPR?: boolean;
+  readonly isExperimentalPPR: boolean;
+  isActionLambda?: boolean;
   isPages?: boolean;
   isApiLambda: boolean;
   pseudoLayer: PseudoLayer;
@@ -1551,15 +1576,13 @@ export async function getPageLambdaGroups({
     }
 
     if (config && config.functions) {
-      // `pages` are normalized without route groups (e.g., /app/(group)/page.js).
-      // we keep track of that mapping in `inversedAppPathManifest`
-      // `getSourceFilePathFromPage` needs to use the path from source to properly match the config
-      const pageFromManifest = inversedAppPathManifest?.[routeName];
       const sourceFile = await getSourceFilePathFromPage({
         workPath: entryPath,
-        // since this function is used by both `pages` and `app`, the manifest might not be provided
+        page: normalizeSourceFilePageFromManifest(
-        // so fallback to normal behavior of just checking the `page`.
+          routeName,
-        page: pageFromManifest ?? page,
+          page,
+          inversedAppPathManifest
+        ),
         pageExtensions,
       });
 
@@ -1643,6 +1666,43 @@ export async function getPageLambdaGroups({
   return groups;
 }
 
+// `pages` are normalized without route groups (e.g., /app/(group)/page.js).
+// we keep track of that mapping in `inversedAppPathManifest`
+// `getSourceFilePathFromPage` needs to use the path from source to properly match the config
+function normalizeSourceFilePageFromManifest(
+  routeName: string,
+  page: string,
+  inversedAppPathManifest?: Record<string, string>
+) {
+  const pageFromManifest = inversedAppPathManifest?.[routeName];
+  if (!pageFromManifest) {
+    // since this function is used by both `pages` and `app`, the manifest might not be provided
+    // so fallback to normal behavior of just checking the `page`.
+    return page;
+  }
+
+  const metadataConventions = [
+    '/favicon.',
+    '/icon.',
+    '/apple-icon.',
+    '/opengraph-image.',
+    '/twitter-image.',
+    '/sitemap.',
+    '/robots.',
+  ];
+
+  // these special metadata files for will not contain `/route` or `/page` suffix, so return the routeName as-is.
+  const isSpecialFile = metadataConventions.some(convention =>
+    routeName.startsWith(convention)
+  );
+
+  if (isSpecialFile) {
+    return routeName;
+  }
+
+  return pageFromManifest;
+}
+
 export const outputFunctionFileSizeInfo = (
   pages: string[],
   pseudoLayer: PseudoLayer,
@@ -1892,6 +1952,7 @@ type OnPrerenderRouteArgs = {
   routesManifest?: RoutesManifest;
   isCorrectNotFoundRoutes?: boolean;
   isEmptyAllowQueryForPrendered?: boolean;
+  isAppPPREnabled: boolean;
 };
 let prerenderGroup = 1;
 
@@ -1928,6 +1989,7 @@ export const onPrerenderRoute =
       routesManifest,
       isCorrectNotFoundRoutes,
       isEmptyAllowQueryForPrendered,
+      isAppPPREnabled,
     } = prerenderRouteArgs;
 
     if (isBlocking && isFallback) {
@@ -2163,22 +2225,6 @@ export const onPrerenderRoute =
       initialStatus = 404;
     }
 
-    /**
-     * If the route key had an `/index` suffix added, we need to note it so we
-     * can remove it from the output path later accurately.
-     */
-    let addedIndexSuffix = false;
-
-    if (isAppPathRoute) {
-      // for literal index routes we need to append an additional /index
-      // due to the proxy's normalizing for /index routes
-      if (routeKey !== '/index' && routeKey.endsWith('/index')) {
-        routeKey = `${routeKey}/index`;
-        routeFileNoExt = routeKey;
-        addedIndexSuffix = true;
-      }
-    }
-
     let outputPathPage = path.posix.join(entryDirectory, routeFileNoExt);
 
     if (!isAppPathRoute) {
@@ -2215,7 +2261,7 @@ export const onPrerenderRoute =
 
     let outputPathPrefetchData: null | string = null;
     if (prefetchDataRoute) {
-      if (!experimentalPPR) {
+      if (!isAppPPREnabled) {
         throw new Error(
           "Invariant: prefetchDataRoute can't be set without PPR"
         );
@@ -2372,7 +2418,7 @@ export const onPrerenderRoute =
         // static route first, then try the srcRoute if it doesn't exist. If we
         // can't find it at all, this constitutes an error.
         experimentalStreamingLambdaPath = experimentalStreamingLambdaPaths.get(
-          pathnameToOutputName(entryDirectory, routeKey, addedIndexSuffix)
+          pathnameToOutputName(entryDirectory, routeKey)
         );
         if (!experimentalStreamingLambdaPath && srcRoute) {
           experimentalStreamingLambdaPath =
@@ -2451,6 +2497,7 @@ export const onPrerenderRoute =
           ...(rscEnabled
             ? {
                 initialHeaders: {
+                  ...initialHeaders,
                   'content-type': rscContentTypeHeader,
                   vary: rscVaryHeader,
                   // If it contains a pre-render, then it was postponed.
@@ -2463,6 +2510,22 @@ export const onPrerenderRoute =
         });
       }
 
+      // we need to ensure all prerenders have a matching .rsc output
+      // otherwise routing could fall through unexpectedly for the
+      // fallback: false case as it doesn't have a dynamic route
+      // to catch the `.rsc` request for app -> pages routing
+      if (outputPrerenderPathData?.endsWith('.json') && appDir) {
+        const dummyOutput = new FileBlob({
+          data: '{}',
+          contentType: 'application/json',
+        });
+        const rscKey = `${outputPathPage}.rsc`;
+        const prefetchRscKey = `${outputPathPage}${RSC_PREFETCH_SUFFIX}`;
+
+        prerenders[rscKey] = dummyOutput;
+        prerenders[prefetchRscKey] = dummyOutput;
+      }
+
       ++prerenderGroup;
 
       if (routesManifest?.i18n && isBlocking) {
@@ -2616,19 +2679,10 @@ export function getNextServerPath(nextVersion: string) {
     : 'next/dist/next-server/server';
 }
 
-function pathnameToOutputName(
+function pathnameToOutputName(entryDirectory: string, pathname: string) {
-  entryDirectory: string,
-  pathname: string,
-  addedIndexSuffix = false
-) {
   if (pathname === '/') {
     pathname = '/index';
   }
-  // If the `/index` was added for a route that ended in `/index` we need to
-  // strip the second one off before joining it with the entryDirectory.
-  else if (addedIndexSuffix) {
-    pathname = pathname.replace(/\/index$/, '');
-  }
 
   return path.posix.join(entryDirectory, pathname);
 }
@@ -2754,7 +2808,7 @@ interface EdgeFunctionInfoV2 extends BaseEdgeFunctionInfo {
 
 interface EdgeFunctionInfoV3 extends BaseEdgeFunctionInfo {
   matchers: EdgeFunctionMatcher[];
-  environments: Record<string, string>;
+  env: Record<string, string>;
 }
 
 interface EdgeFunctionMatcher {
@@ -2989,7 +3043,7 @@ export async function getMiddlewareBundle({
                   slug: 'nextjs',
                   version: nextVersion,
                 },
-                environment: edgeFunction.environments,
+                environment: edgeFunction.env,
               });
             })(),
             routeMatchers: getRouteMatchers(edgeFunction, routesManifest),
@@ -3169,7 +3223,7 @@ export function upgradeMiddlewareManifestV1(
     return {
       ...rest,
       matchers: [{ regexp }],
-      environments: {},
+      env: {},
     };
   }
 
@@ -3197,7 +3251,7 @@ export function upgradeMiddlewareManifestV2(
     const { ...rest } = v2Info;
     return {
       ...rest,
-      environments: {},
+      env: {},
     };
   }
 

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/actions.js

@@ -0,0 +1,6 @@
+'use server';
+
+export async function increment(value) {
+  await new Promise(resolve => setTimeout(resolve, 500));
+  return value + 1;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/client/dynamic/[id]/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/client/dynamic/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-dynamic';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/client/static/[dynamic-static]/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/client/static/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-static';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/client/static/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/client/dynamic/[id]/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/client/dynamic/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-dynamic';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/client/static/[dynamic-static]/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/client/static/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-static';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/client/static/page.js

@@ -0,0 +1,19 @@
+'use client';
+
+import { useState } from 'react';
+import { increment } from '../../../actions';
+
+export default function Page() {
+  const [count, setCount] = useState(0);
+  async function updateCount() {
+    const newCount = await increment(count);
+    setCount(newCount);
+  }
+
+  return (
+    <form action={updateCount}>
+      <div id="count">{count}</div>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/layout.js

@@ -0,0 +1,5 @@
+export const runtime = 'edge';
+
+export default function Layout({ children }) {
+  return <div>{children}</div>;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/other/page.js

@@ -0,0 +1,45 @@
+'use client';
+
+// @ts-ignore
+import { useCallback, useState } from 'react';
+
+function request(method) {
+  return fetch('/api/test', {
+    method,
+    headers: {
+      'content-type': 'multipart/form-data;.*',
+    },
+  });
+}
+
+export default function Home() {
+  const [result, setResult] = useState('Press submit');
+  const onClick = useCallback(async method => {
+    const res = await request(method);
+    const text = await res.text();
+
+    setResult(res.ok ? `${method} ${text}` : 'Error: ' + res.status);
+  }, []);
+
+  return (
+    <>
+      <div className="flex flex-col items-center justify-center h-screen">
+        <div className="flex flex-row space-x-2 items-center justify-center">
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('GET')}
+          >
+            Submit GET
+          </button>
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('POST')}
+          >
+            Submit POST
+          </button>
+        </div>
+        <div className="text-white">{result}</div>
+      </div>
+    </>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/dynamic/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-dynamic';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/dynamic/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/static/[dynamic-static]/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/static/generate-static-params/[slug]/page.js

@@ -0,0 +1,19 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}
+
+export function generateStaticParams() {
+  return [{ slug: 'pre-generated' }];
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/static/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-static';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/edge/rsc/static/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache'
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise((resolve) => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/layout.js

@@ -0,0 +1,10 @@
+export default function Root({ children }) {
+    return (
+      <html>
+        <head>
+          <title>Hello World</title>
+        </head>
+        <body>{children}</body>
+      </html>
+    );
+  }

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/other/page.js

@@ -0,0 +1,45 @@
+'use client';
+
+// @ts-ignore
+import { useCallback, useState } from 'react';
+
+function request(method) {
+  return fetch('/api/test', {
+    method,
+    headers: {
+      'content-type': 'multipart/form-data;.*',
+    },
+  });
+}
+
+export default function Home() {
+  const [result, setResult] = useState('Press submit');
+  const onClick = useCallback(async method => {
+    const res = await request(method);
+    const text = await res.text();
+
+    setResult(res.ok ? `${method} ${text}` : 'Error: ' + res.status);
+  }, []);
+
+  return (
+    <>
+      <div className="flex flex-col items-center justify-center h-screen">
+        <div className="flex flex-row space-x-2 items-center justify-center">
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('GET')}
+          >
+            Submit GET
+          </button>
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('POST')}
+          >
+            Submit POST
+          </button>
+        </div>
+        <div className="text-white">{result}</div>
+      </div>
+    </>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/dynamic/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-dynamic';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/dynamic/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/static/[dynamic-static]/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/static/generate-static-params/[slug]/page.js

@@ -0,0 +1,19 @@
+import { revalidatePath } from 'next/cache';
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}
+
+export function generateStaticParams() {
+  return [{ slug: 'pre-generated' }];
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/static/layout.js

@@ -0,0 +1,5 @@
+export const dynamic = 'force-static';
+
+export default function Layout({ children }) {
+  return children;
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/app/rsc/static/page.js

@@ -0,0 +1,15 @@
+import { revalidatePath } from 'next/cache'
+
+export default async function Page() {
+  async function serverAction() {
+    'use server';
+    await new Promise((resolve) => setTimeout(resolve, 1000));
+    revalidatePath('/dynamic');
+  }
+
+  return (
+    <form action={serverAction}>
+      <button>Submit</button>
+    </form>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/index.test.js

@@ -0,0 +1,324 @@
+/* eslint-env jest */
+const path = require('path');
+const { deployAndTest } = require('../../utils');
+const fetch = require('../../../../../test/lib/deployment/fetch-retry');
+
+const ctx = {};
+
+function findActionId(page, runtime) {
+  page = `app${page}/page`; // add /app prefix and /page suffix
+
+  for (const [actionId, details] of Object.entries(
+    ctx.actionManifest[runtime]
+  )) {
+    if (details.workers[page]) {
+      return actionId;
+    }
+  }
+  return null;
+}
+
+function generateFormDataPayload(actionId) {
+  return {
+    method: 'POST',
+    body: `------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"1_$ACTION_ID_${actionId}\"\r\n\r\n\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"0\"\r\n\r\n[\"$K1\"]\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ--\r\n`,
+    headers: {
+      'Content-Type':
+        'multipart/form-data; boundary=----WebKitFormBoundaryHcVuFa30AN0QV3uZ',
+      'Next-Action': actionId,
+    },
+  };
+}
+
+describe(`${__dirname.split(path.sep).pop()}`, () => {
+  beforeAll(async () => {
+    const info = await deployAndTest(__dirname);
+
+    const actionManifest = await fetch(
+      `${info.deploymentUrl}/server-reference-manifest.json`
+    ).then(res => res.json());
+
+    ctx.actionManifest = actionManifest;
+
+    Object.assign(ctx, info);
+  });
+
+  describe.each(['node', 'edge'])('runtime: %s', runtime => {
+    const basePath = runtime === 'edge' ? '/edge' : '';
+    describe('client component', () => {
+      it('should bypass the static cache for a server action', async () => {
+        const path = `${basePath}/client/static`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(`${ctx.deploymentUrl}${path}`, {
+          method: 'POST',
+          body: JSON.stringify([1337]),
+          headers: {
+            'Content-Type': 'text/plain;charset=UTF-8',
+            'Next-Action': actionId,
+          },
+        });
+
+        expect(res.status).toEqual(200);
+        const body = await res.text();
+        expect(body).toContain('1338');
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          // in edge runtime, x-vercel-cache is not returned on MISSes for some reason.
+          // this checks to ensure it was routed to the edge function instead.
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+
+      it('should bypass the static cache for a server action on a page with dynamic params', async () => {
+        const path = `${basePath}/client/static/[dynamic-static]`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(`${ctx.deploymentUrl}${path}`, {
+          method: 'POST',
+          body: JSON.stringify([1337]),
+          headers: {
+            'Content-Type': 'text/plain;charset=UTF-8',
+            'Next-Action': actionId,
+          },
+        });
+
+        expect(res.status).toEqual(200);
+        const body = await res.text();
+        expect(body).toContain('1338');
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+
+      it('should bypass the static cache for a multipart request (no action header)', async () => {
+        const path = `${basePath}/client/static`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(`${ctx.deploymentUrl}${path}`, {
+          method: 'POST',
+          body: `------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"1_$ACTION_ID_${actionId}\"\r\n\r\n\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"0\"\r\n\r\n[\"$K1\"]\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ--\r\n`,
+          headers: {
+            'Content-Type':
+              'multipart/form-data; boundary=----WebKitFormBoundaryHcVuFa30AN0QV3uZ',
+          },
+        });
+
+        expect(res.status).toEqual(200);
+        expect(res.headers.get('content-type')).toBe(
+          'text/html; charset=utf-8'
+        );
+        if (runtime === 'node') {
+          // This is a "BYPASS" because no action ID was provided, so it'll fall back to
+          // `experimentalBypassFor` handling.
+          expect(res.headers.get('x-vercel-cache')).toBe('BYPASS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+        expect(res.headers.get('x-matched-path')).toBe(path);
+      });
+
+      it('should properly invoke the action on a dynamic page', async () => {
+        const path = `${basePath}/client/dynamic/[id]`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(`${ctx.deploymentUrl}${path}`, {
+          method: 'POST',
+          body: JSON.stringify([1337]),
+          headers: {
+            'Content-Type': 'text/plain;charset=UTF-8',
+            'Next-Action': actionId,
+          },
+        });
+
+        expect(res.status).toEqual(200);
+        const body = await res.text();
+        expect(body).toContain('1338');
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+    });
+
+    describe('server component', () => {
+      it('should bypass the static cache for a server action', async () => {
+        const path = `${basePath}/rsc/static`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(
+          `${ctx.deploymentUrl}${path}`,
+          generateFormDataPayload(actionId)
+        );
+
+        expect(res.status).toEqual(200);
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        expect(res.headers.get('content-type')).toBe('text/x-component');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+
+      it('should bypass the static cache for a server action on a page with dynamic params', async () => {
+        const path = `${basePath}/rsc/static/[dynamic-static]`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(
+          `${ctx.deploymentUrl}${path}`,
+          generateFormDataPayload(actionId)
+        );
+
+        expect(res.status).toEqual(200);
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        expect(res.headers.get('content-type')).toBe('text/x-component');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+
+      it('should properly invoke the action on a dynamic page', async () => {
+        const path = `${basePath}/rsc/dynamic`;
+        const actionId = findActionId(path, runtime);
+
+        const res = await fetch(
+          `${ctx.deploymentUrl}${path}`,
+          generateFormDataPayload(actionId)
+        );
+
+        expect(res.status).toEqual(200);
+        expect(res.headers.get('x-matched-path')).toBe(path + '.action');
+        expect(res.headers.get('content-type')).toBe('text/x-component');
+        if (runtime === 'node') {
+          expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+        } else {
+          expect(res.headers.get('x-edge-runtime')).toBe('1');
+        }
+      });
+
+      describe('generateStaticParams', () => {
+        it('should bypass the static cache for a server action when pre-generated', async () => {
+          const path = `${basePath}/rsc/static/generate-static-params/pre-generated`;
+          const dynamicPath = `${basePath}/rsc/static/generate-static-params/[slug]`;
+          const actionId = findActionId(dynamicPath, runtime);
+
+          const res = await fetch(
+            `${ctx.deploymentUrl}${path}`,
+            generateFormDataPayload(actionId)
+          );
+
+          expect(res.status).toEqual(200);
+          expect(res.headers.get('x-matched-path')).toBe(
+            dynamicPath + '.action'
+          );
+          expect(res.headers.get('content-type')).toBe('text/x-component');
+          if (runtime === 'node') {
+            expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+          } else {
+            expect(res.headers.get('x-edge-runtime')).toBe('1');
+          }
+        });
+
+        it('should bypass the static cache for a server action when not pre-generated', async () => {
+          const page = `${basePath}/rsc/static/generate-static-params/[slug]`;
+          const actionId = findActionId(page, runtime);
+
+          const res = await fetch(
+            `${ctx.deploymentUrl}/${basePath}/rsc/static/generate-static-params/not-pre-generated`,
+            generateFormDataPayload(actionId)
+          );
+
+          expect(res.status).toEqual(200);
+          expect(res.headers.get('x-matched-path')).toBe(page + '.action');
+          expect(res.headers.get('content-type')).toBe('text/x-component');
+          if (runtime === 'node') {
+            expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+          } else {
+            expect(res.headers.get('x-edge-runtime')).toBe('1');
+          }
+        });
+      });
+    });
+
+    it('should not match to an action output when the RSC header is present', async () => {
+      const canonicalPath = `${basePath}/client/dynamic/1`;
+      const pagePath = `${basePath}/client/dynamic/[id]`;
+      const actionId = findActionId(pagePath, runtime);
+
+      const res = await fetch(`${ctx.deploymentUrl}${canonicalPath}`, {
+        method: 'POST',
+        body: JSON.stringify([1337]),
+        headers: {
+          'Content-Type': 'text/plain;charset=UTF-8',
+          'Next-Action': actionId,
+          'Next-Response': 'rsc',
+          RSC: '1',
+        },
+      });
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe(pagePath + '.rsc');
+      expect(res.headers.get('content-type')).toBe('text/x-component');
+      const body = await res.text();
+      expect(body).toContain(JSON.stringify(['id', '1', 'd']));
+      expect(body).not.toContain(JSON.stringify(['id', '1.action', 'd']));
+    });
+
+    it('should work when a rewrite targets an action', async () => {
+      const targetPath = `${basePath}/rsc/static`;
+      const canonicalPath = `/rewrite/${basePath}/rsc/static`;
+      const actionId = findActionId(targetPath, runtime);
+
+      const res = await fetch(
+        `${ctx.deploymentUrl}${canonicalPath}`,
+        generateFormDataPayload(actionId)
+      );
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe(targetPath + '.action');
+      expect(res.headers.get('content-type')).toBe('text/x-component');
+      if (runtime === 'node') {
+        expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+      } else {
+        expect(res.headers.get('x-edge-runtime')).toBe('1');
+      }
+    });
+  });
+
+  describe('pages', () => {
+    it('should not attempt to rewrite the action path for a server action (POST)', async () => {
+      const res = await fetch(`${ctx.deploymentUrl}/api/test`, {
+        method: 'POST',
+        headers: {
+          'Content-Type':
+            'multipart/form-data; boundary=----WebKitFormBoundaryHcVuFa30AN0QV3uZ',
+        },
+      });
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe('/api/test');
+      expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+      const body = await res.json();
+      expect(body).toEqual({ message: 'Hello from Next.js!' });
+    });
+
+    it('should not attempt to rewrite the action path for a server action (GET)', async () => {
+      const res = await fetch(`${ctx.deploymentUrl}/api/test`);
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe('/api/test');
+      const body = await res.json();
+      expect(body).toEqual({ message: 'Hello from Next.js!' });
+    });
+  });
+});

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/next.config.js

@@ -0,0 +1,14 @@
+module.exports = {
+  rewrites() {
+    return [
+      {
+        source: '/rewrite/rsc/static',
+        destination: '/rsc/static',
+      },
+      {
+        source: '/rewrite/edge/rsc/static',
+        destination: '/edge/rsc/static',
+      },
+    ];
+  },
+};

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/package.json

@@ -0,0 +1,9 @@
+{
+  "dependencies": {
+    "next": "canary"
+  },
+  "scripts": {
+    "build": "next build && cp .next/server/server-reference-manifest.json public/"
+  },
+  "ignoreNextjsUpdates": true
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/pages/api/test.js

@@ -0,0 +1,3 @@
+export default function handler(req, res) {
+  res.status(200).json({ message: 'Hello from Next.js!' });
+}

packages/next/test/fixtures/00-app-dir-actions-experimental-streaming/vercel.json

@@ -0,0 +1,14 @@
+{
+  "builds": [
+    {
+      "src": "package.json",
+      "use": "@vercel/next"
+    }
+  ],
+  "build": {
+    "env": {
+      "NEXT_EXPERIMENTAL_STREAMING_ACTIONS": "1"
+    }
+  },
+  "probes": []
+}

packages/next/test/fixtures/00-app-dir-actions/app/other/page.js

@@ -0,0 +1,45 @@
+'use client';
+
+// @ts-ignore
+import { useCallback, useState } from 'react';
+
+function request(method) {
+  return fetch('/api/test', {
+    method,
+    headers: {
+      'content-type': 'multipart/form-data;.*',
+    },
+  });
+}
+
+export default function Home() {
+  const [result, setResult] = useState('Press submit');
+  const onClick = useCallback(async method => {
+    const res = await request(method);
+    const text = await res.text();
+
+    setResult(res.ok ? `${method} ${text}` : 'Error: ' + res.status);
+  }, []);
+
+  return (
+    <>
+      <div className="flex flex-col items-center justify-center h-screen">
+        <div className="flex flex-row space-x-2 items-center justify-center">
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('GET')}
+          >
+            Submit GET
+          </button>
+          <button
+            className="border border-white rounded-sm p-4 mb-4"
+            onClick={() => onClick('POST')}
+          >
+            Submit POST
+          </button>
+        </div>
+        <div className="text-white">{result}</div>
+      </div>
+    </>
+  );
+}

packages/next/test/fixtures/00-app-dir-actions/index.test.js

@@ -37,6 +37,7 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
     ).then(res => res.json());
 
     ctx.actionManifest = actionManifest;
+
     Object.assign(ctx, info);
   });
 
@@ -81,6 +82,25 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
       expect(res.headers.get('x-vercel-cache')).toBe('BYPASS');
     });
 
+    it('should bypass the static cache for a multipart request (no action header)', async () => {
+      const path = '/client/static';
+      const actionId = findActionId(path);
+
+      const res = await fetch(`${ctx.deploymentUrl}${path}`, {
+        method: 'POST',
+        body: `------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"1_$ACTION_ID_${actionId}\"\r\n\r\n\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ\r\nContent-Disposition: form-data; name=\"0\"\r\n\r\n[\"$K1\"]\r\n------WebKitFormBoundaryHcVuFa30AN0QV3uZ--\r\n`,
+        headers: {
+          'Content-Type':
+            'multipart/form-data; boundary=----WebKitFormBoundaryHcVuFa30AN0QV3uZ',
+        },
+      });
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('content-type')).toBe('text/html; charset=utf-8');
+      expect(res.headers.get('x-vercel-cache')).toBe('BYPASS');
+      expect(res.headers.get('x-matched-path')).toBe(path);
+    });
+
     it('should properly invoke the action on a dynamic page', async () => {
       const path = '/client/dynamic/[id]';
       const actionId = findActionId(path);
@@ -98,6 +118,7 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
       const body = await res.text();
       expect(body).toContain('1338');
       expect(res.headers.get('x-matched-path')).toBe(path);
+      // This isn't a "BYPASS" because the action wasn't part of a static prerender
       expect(res.headers.get('x-vercel-cache')).toBe('MISS');
     });
   });
@@ -145,6 +166,7 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
       expect(res.status).toEqual(200);
       expect(res.headers.get('x-matched-path')).toBe(path);
       expect(res.headers.get('content-type')).toBe('text/x-component');
+      // This isn't a "BYPASS" because the action wasn't part of a static prerender
       expect(res.headers.get('x-vercel-cache')).toBe('MISS');
     });
 
@@ -161,7 +183,9 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
         );
 
         expect(res.status).toEqual(200);
-        expect(res.headers.get('x-matched-path')).toBe(path);
+        expect(res.headers.get('x-matched-path')).toBe(
+          '/rsc/static/generate-static-params/pre-generated'
+        );
         expect(res.headers.get('content-type')).toBe('text/x-component');
         expect(res.headers.get('x-vercel-cache')).toBe('BYPASS');
       });
@@ -178,8 +202,36 @@ describe(`${__dirname.split(path.sep).pop()}`, () => {
         expect(res.status).toEqual(200);
         expect(res.headers.get('x-matched-path')).toBe(page);
         expect(res.headers.get('content-type')).toBe('text/x-component');
+        // This isn't a "BYPASS" because the action wasn't part of a static prerender
         expect(res.headers.get('x-vercel-cache')).toBe('BYPASS');
       });
     });
   });
+
+  describe('pages', () => {
+    it('should not attempt to rewrite the action path for a server action (POST)', async () => {
+      const res = await fetch(`${ctx.deploymentUrl}/api/test`, {
+        method: 'POST',
+        headers: {
+          'Content-Type':
+            'multipart/form-data; boundary=----WebKitFormBoundaryHcVuFa30AN0QV3uZ',
+        },
+      });
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe('/api/test');
+      expect(res.headers.get('x-vercel-cache')).toBe('MISS');
+      const body = await res.json();
+      expect(body).toEqual({ message: 'Hello from Next.js!' });
+    });
+
+    it('should not attempt to rewrite the action path for a server action (GET)', async () => {
+      const res = await fetch(`${ctx.deploymentUrl}/api/test`);
+
+      expect(res.status).toEqual(200);
+      expect(res.headers.get('x-matched-path')).toBe('/api/test');
+      const body = await res.json();
+      expect(body).toEqual({ message: 'Hello from Next.js!' });
+    });
+  });
 });

packages/next/test/fixtures/00-app-dir-actions/next.config.js

@@ -0,0 +1 @@
+module.exports = {};

packages/next/test/fixtures/00-app-dir-actions/pages/api/test.js

@@ -0,0 +1,3 @@
+export default function handler(req, res) {
+  res.status(200).json({ message: 'Hello from Next.js!' });
+}

packages/next/test/fixtures/00-app-dir-base-path/vercel.json

@@ -18,6 +18,31 @@
     }
   ],
   "probes": [
+    {
+      "path": "/hello/world",
+      "status": 200,
+      "mustContain": "index app page"
+    },
+    {
+      "path": "/hello/world",
+      "status": 200,
+      "mustContain": "index app page",
+      "mustNotContain": "<html",
+      "headers": {
+        "RSC": 1
+      }
+    },
+    {
+      "path": "/hello/world",
+      "status": 200,
+      "mustContain": ":",
+      "mustNotContain": "<html",
+      "headers": {
+        "RSC": 1,
+        "Next-Router-Prefetch": 1
+      }
+    },
+    
     {
       "path": "/hello/world/dashboard/hello",
       "status": 200,
@@ -42,14 +67,14 @@
       "status": 200,
       "mustContain": "hello from /ssg",
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       }
     },
     {
       "path": "/hello/world/ssg",
       "status": 200,
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       },
       "headers": {
         "RSC": "1"
@@ -82,14 +107,14 @@
       "status": 200,
       "mustContain": "hello from app/dashboard/deployments/[id]/settings",
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       }
     },
     {
       "path": "/hello/world/dashboard/deployments/123/settings",
       "status": 200,
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       },
       "headers": {
         "RSC": "1"
@@ -102,14 +127,14 @@
       "status": 200,
       "mustContain": "catchall",
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       }
     },
     {
       "path": "/hello/world/dashboard/deployments/catchall/something",
       "status": 200,
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       },
       "headers": {
         "RSC": "1"
@@ -122,7 +147,7 @@
       "status": 200,
       "mustContain": "hello from app/dashboard",
       "responseHeaders": {
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       }
     },
     {
@@ -142,7 +167,7 @@
       },
       "responseHeaders": {
         "content-type": "text/x-component",
-        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url"
+        "vary": "RSC, Next-Router-State-Tree, Next-Router-Prefetch"
       }
     },
     {

packages/next/test/fixtures/00-app-dir-catchall-pages/package.json

@@ -1,8 +1,8 @@
 {
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true
 }

packages/next/test/fixtures/00-app-dir-dynamic-404/package.json

@@ -1,8 +1,8 @@
 {
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true,
   "scripts": {

packages/next/test/fixtures/00-app-dir-edge-404/package.json

@@ -1,8 +1,8 @@
 {
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true
 }

packages/next/test/fixtures/00-app-dir-edge/package.json

@@ -1,8 +1,8 @@
 {
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true
 }

packages/next/test/fixtures/00-app-dir-i18n/package.json

@@ -7,8 +7,8 @@
   },
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true
 }

packages/next/test/fixtures/00-app-dir-incremental-ppr/app/disabled/page.jsx

@@ -0,0 +1,3 @@
+export { default } from '../page';
+
+export const experimental_ppr = false;

packages/next/test/fixtures/00-app-dir-incremental-ppr/app/layout.jsx

@@ -0,0 +1,7 @@
+export default function Layout({ children }) {
+  return (
+    <html>
+      <body>{children}</body>
+    </html>
+  );
+}

packages/next/test/fixtures/00-app-dir-incremental-ppr/app/page.jsx

@@ -0,0 +1,17 @@
+import { unstable_noStore } from 'next/cache';
+import { Suspense } from 'react';
+
+export const experimental_ppr = true;
+
+function Dynamic() {
+  unstable_noStore();
+  return <div id="sentinel:dynamic">Dynamic</div>;
+}
+
+export default function Page() {
+  return (
+    <Suspense fallback={<div id="sentinel:loading">Loading...</div>}>
+      <Dynamic />
+    </Suspense>
+  );
+}

packages/next/test/fixtures/00-app-dir-incremental-ppr/app/static/page.jsx

@@ -0,0 +1,3 @@
+export default function Page() {
+  return <div id="sentinel:static">Static</div>;
+}

packages/next/test/fixtures/00-app-dir-incremental-ppr/index.test.js

@@ -0,0 +1,13 @@
+/* eslint-env jest */
+const path = require('path');
+const { deployAndTest } = require('../../utils');
+
+const ctx = {};
+
+// TODO: investigate invariant 
+describe.skip(`${__dirname.split(path.sep).pop()}`, () => {
+  it('should deploy and pass probe checks', async () => {
+    const info = await deployAndTest(__dirname);
+    Object.assign(ctx, info);
+  });
+});

packages/next/test/fixtures/00-app-dir-incremental-ppr/next.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  experimental: {
+    ppr: 'incremental',
+  },
+};

packages/next/test/fixtures/00-app-dir-incremental-ppr/package.json

@@ -0,0 +1,8 @@
+{
+  "dependencies": {
+    "next": "canary",
+    "react": "19.0.0-rc-f994737d14-20240522",
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
+  },
+  "ignoreNextjsUpdates": true
+}

packages/next/test/fixtures/00-app-dir-incremental-ppr/vercel.json

@@ -0,0 +1,82 @@
+{
+  "builds": [
+    {
+      "src": "package.json",
+      "use": "@vercel/next",
+      "config": {
+        "functions": {
+          "app/**/*": {
+            "maxDuration": 5,
+            "memory": 512
+          },
+          "pages/api/**/*": {
+            "maxDuration": 5,
+            "memory": 512
+          }
+        }
+      }
+    }
+  ],
+  "probes": [
+    {
+      "path": "/",
+      "status": 200,
+      "mustContain": "sentinel:loading"
+    },
+    {
+      "path": "/",
+      "status": 200,
+      "mustContain": "sentinel:dynamic"
+    },
+    {
+      "path": "/",
+      "headers": {
+        "RSC": "1",
+        "Next-Router-Prefetch": "1"
+      },
+      "status": 200,
+      "mustContain": "sentinel:loading",
+      "mustNotContain": "sentinel:dynamic"
+    },
+    {
+      "path": "/",
+      "headers": {
+        "RSC": "1"
+      },
+      "status": 200,
+      "mustContain": "sentinel:dynamic"
+    },
+    {
+      "path": "/disabled",
+      "status": 200,
+      "mustContain": "sentinel:loading"
+    },
+    {
+      "path": "/disabled",
+      "status": 200,
+      "mustContain": "sentinel:dynamic"
+    },
+    {
+      "path": "/static",
+      "status": 200,
+      "mustContain": "sentinel:static"
+    },
+    {
+      "path": "/disabled",
+      "headers": {
+        "RSC": "1",
+        "Next-Router-Prefetch": "1"
+      },
+      "status": 200,
+      "mustContain": "sentinel:dynamic"
+    },
+    {
+      "path": "/disabled",
+      "headers": {
+        "RSC": "1"
+      },
+      "status": 200,
+      "mustContain": "sentinel:dynamic"
+    }
+  ]
+}

packages/next/test/fixtures/00-app-dir-middleware/package.json

@@ -1,8 +1,8 @@
 {
   "dependencies": {
     "next": "canary",
-    "react": "experimental",
+    "react": "19.0.0-rc-f994737d14-20240522",
-    "react-dom": "experimental"
+    "react-dom": "19.0.0-rc-f994737d14-20240522"
   },
   "ignoreNextjsUpdates": true
 }