@@ -149,6 +149,35 @@ jobs:
     - name: Run simple code
       run: python -c 'import math; print(math.factorial(5))'
 
+  setup-prerelease-version:
+    name: Setup 3.12 ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: setup-python 3.12
+      id: setup-python
+      uses: ./
+      with:
+        python-version: '3.12'
+        allow-prereleases: true
+
+    - name: Check python-path
+      run: ./__tests__/check-python-path.sh '${{ steps.setup-python.outputs.python-path }}'
+      shell: bash
+
+    - name: Validate version
+      run: ${{ startsWith(steps.setup-python.outputs.python-version, '3.12.') }}
+      shell: bash
+
+    - name: Run simple code
+      run: python -c 'import math; print(math.factorial(5))'
+
   setup-versions-noenv:
     name: Setup ${{ matrix.python }} ${{ matrix.os }} (noenv)
     runs-on: ${{ matrix.os }}
@@ -223,4 +252,4 @@ jobs:
             exit 1
           }
           $pythonVersion
-        shell: pwsh
+        shell: pwsh
@@ -85,6 +85,7 @@ See examples of using `cache` and `cache-dependency-path` for `pipenv` and `poet
 - [Hosted tool cache](docs/advanced-usage.md#hosted-tool-cache) 
 - [Using `setup-python` with a self-hosted runner](docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner)
 - [Using `setup-python` on GHES](docs/advanced-usage.md#using-setup-python-on-ghes)
+- [Allow pre-releases](docs/advanced-usage.md#allow-pre-releases)
 
 ## License
 
 
@@ -1,4 +1,94 @@
 [
+  {
+    "pypy_version": "7.3.8rc2",
+    "python_version": "3.8.12",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2022-02-11",
+    "files": [
+      {
+        "filename": "pypy3.8-v7.3.8rc2-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-darwin64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-darwin64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-s390x.tar.bz2"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-win64.zip",
+        "arch": "x64",
+        "platform": "win64",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-win64.zip"
+      },
+      {
+        "filename": "pypy3.8-v7.3.8rc2-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.8-v7.3.8rc2-win32.zip"
+      }
+    ]
+  },
+  {
+    "pypy_version": "7.4.0rc1",
+    "python_version": "3.6.12",
+    "stable": false,
+    "latest_pypy": false,
+    "date": "2021-11-11",
+    "files": [
+      {
+        "filename": "pypy3.6-v7.4.0rc1-aarch64.tar.bz2",
+        "arch": "aarch64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-aarch64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-linux32.tar.bz2",
+        "arch": "i686",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-linux32.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-linux64.tar.bz2",
+        "arch": "x64",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-linux64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-darwin64.tar.bz2",
+        "arch": "x64",
+        "platform": "darwin",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-darwin64.tar.bz2"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-win32.zip",
+        "arch": "x86",
+        "platform": "win32",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-win32.zip"
+      },
+      {
+        "filename": "pypy3.6-v7.4.0rc1-s390x.tar.bz2",
+        "arch": "s390x",
+        "platform": "linux",
+        "download_url": "https://test.download.python.org/pypy/pypy3.6-v7.4.0rc1-s390x.tar.bz2"
+      }
+    ]
+  },
   {
     "pypy_version": "7.3.3",
     "python_version": "3.6.12",
@@ -530,4 +620,4 @@
       }
     ]
   }
-]
+]
@@ -1,4 +1,29 @@
 [
+    {
+      "version": "1.2.4-beta.2",
+      "stable": false,
+      "release_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5",
+      "files": [
+        {
+          "filename": "sometool-1.2.4-linux-x64.tar.gz",
+          "arch": "x64",
+          "platform": "linux",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-linux-x64.tar.gz"
+        },
+        {
+          "filename": "sometool-1.2.4-darwin-x64.tar.gz",
+          "arch": "x64",
+          "platform": "darwin",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-darwin-x64.tar.gz"
+        },
+        {
+          "filename": "sometool-1.2.4-win32-x64.tar.gz",
+          "arch": "x64",
+          "platform": "win32",
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.4-beta.2-20200402.5/sometool-1.2.4-win32-x64.tar.gz"
+        }
+      ]
+    },
     {
       "version": "1.2.3",
       "stable": true,
@@ -25,28 +50,28 @@
       ]
     },
     {
-      "version": "1.2.3-beta.2",
+      "version": "1.1.0-beta.2",
       "stable": false,
-      "release_url": "https://github.com/actions/sometool/releases/tag/1.2.3-beta.2-20200402.5",
+      "release_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5",
       "files": [
         {
-          "filename": "sometool-1.2.3-linux-x64.tar.gz",
+          "filename": "sometool-1.1.0-linux-x64.tar.gz",
           "arch": "x64",
           "platform": "linux",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-beta.2-20200402.5/sometool-1.2.3-linux-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-linux-x64.tar.gz"
         },
         {
-          "filename": "sometool-1.2.3-darwin-x64.tar.gz",
+          "filename": "sometool-1.1.0-darwin-x64.tar.gz",
           "arch": "x64",
           "platform": "darwin",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-20200402.5/sometool-1.2.3-darwin-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-darwin-x64.tar.gz"
         },
         {
-          "filename": "sometool-1.2.3-win32-x64.tar.gz",
+          "filename": "sometool-1.1.0-win32-x64.tar.gz",
           "arch": "x64",
           "platform": "win32",
-          "download_url": "https://github.com/actions/sometool/releases/tag/1.2.3-20200402.5/sometool-1.2.3-win32-x64.tar.gz"
+          "download_url": "https://github.com/actions/sometool/releases/tag/1.1.0-beta.2-20200402.5/sometool-1.1.0-win32-x64.tar.gz"
         }
       ]
     }
-]
+]
@@ -273,7 +273,13 @@ describe('findPyPyVersion', () => {
 
   it('found PyPy in toolcache', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture, true, false)
+      finder.findPyPyVersion(
+        'pypy-3.6-v7.3.x',
+        architecture,
+        true,
+        false,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.6.12',
       resolvedPyPyVersion: '7.3.3'
@@ -291,13 +297,13 @@ describe('findPyPyVersion', () => {
 
   it('throw on invalid input format', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false, false)
     ).rejects.toThrow();
   });
 
   it('throw on invalid input format pypy3.7-7.3.x', async () => {
     await expect(
-      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false)
+      finder.findPyPyVersion('pypy3.7-v7.3.x', architecture, true, false, false)
     ).rejects.toThrow();
   });
 
@@ -309,7 +315,13 @@ describe('findPyPyVersion', () => {
     spyChmodSync = jest.spyOn(fs, 'chmodSync');
     spyChmodSync.mockImplementation(() => undefined);
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, true, false)
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        true,
+        false,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.7.9',
       resolvedPyPyVersion: '7.3.3'
@@ -333,7 +345,13 @@ describe('findPyPyVersion', () => {
     spyChmodSync = jest.spyOn(fs, 'chmodSync');
     spyChmodSync.mockImplementation(() => undefined);
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, false, false)
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        false,
+        false,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.7.9',
       resolvedPyPyVersion: '7.3.3'
@@ -344,15 +362,27 @@ describe('findPyPyVersion', () => {
 
   it('throw if release is not found', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.5.x', architecture, true, false)
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.5.x',
+        architecture,
+        true,
+        false,
+        false
+      )
     ).rejects.toThrowError(
       `PyPy version 3.7 (v7.5.x) with arch ${architecture} not found`
     );
   });
 
   it('check-latest enabled version found and used from toolcache', async () => {
     await expect(
-      finder.findPyPyVersion('pypy-3.6-v7.3.x', architecture, false, true)
+      finder.findPyPyVersion(
+        'pypy-3.6-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.6.12',
       resolvedPyPyVersion: '7.3.3'
@@ -371,7 +401,13 @@ describe('findPyPyVersion', () => {
     spyChmodSync = jest.spyOn(fs, 'chmodSync');
     spyChmodSync.mockImplementation(() => undefined);
     await expect(
-      finder.findPyPyVersion('pypy-3.7-v7.3.x', architecture, false, true)
+      finder.findPyPyVersion(
+        'pypy-3.7-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.7.9',
       resolvedPyPyVersion: '7.3.3'
@@ -391,7 +427,13 @@ describe('findPyPyVersion', () => {
       return pypyPath;
     });
     await expect(
-      finder.findPyPyVersion('pypy-3.8-v7.3.x', architecture, false, true)
+      finder.findPyPyVersion(
+        'pypy-3.8-v7.3.x',
+        architecture,
+        false,
+        true,
+        false
+      )
     ).resolves.toEqual({
       resolvedPythonVersion: '3.8.8',
       resolvedPyPyVersion: '7.3.3'
@@ -401,4 +443,22 @@ describe('findPyPyVersion', () => {
       'Failed to resolve PyPy v7.3.x with Python (3.8) from manifest'
     );
   });
+
+  it('found and install successfully, pre-release fallback', async () => {
+    spyCacheDir = jest.spyOn(tc, 'cacheDir');
+    spyCacheDir.mockImplementation(() =>
+      path.join(toolDir, 'PyPy', '3.8.12', architecture)
+    );
+    spyChmodSync = jest.spyOn(fs, 'chmodSync');
+    spyChmodSync.mockImplementation(() => undefined);
+    await expect(
+      finder.findPyPyVersion('pypy3.8', architecture, false, false, false)
+    ).rejects.toThrowError();
+    await expect(
+      finder.findPyPyVersion('pypy3.8', architecture, false, false, true)
+    ).resolves.toEqual({
+      resolvedPythonVersion: '3.8.12',
+      resolvedPyPyVersion: '7.3.8rc2'
+    });
+  });
 });