diff --git a/.github/workflows/build-python-packages.yml b/.github/workflows/build-python-packages.yml
index bbe80a091..3cf957910 100644
--- a/.github/workflows/build-python-packages.yml
+++ b/.github/workflows/build-python-packages.yml
@@ -20,7 +20,7 @@ on:
       PLATFORMS:
         description: 'Platforms for execution in "os" or "os_arch" format (arch is "x64" by default)'
         required: true
-        default: 'ubuntu-20.04,ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13_x64,macos-14_arm64,windows-2019_x64,windows-2019_x86,windows-2019_arm64'
+        default: 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13_x64,macos-14_arm64,windows-2019_x64,windows-2019_x86,windows-2019_arm64'
   pull_request:
     paths-ignore:
     - 'versions-manifest.json'
@@ -44,7 +44,7 @@ jobs:
       - name: Generate execution matrix
         id: generate-matrix
         run: |
-          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-20.04,ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13,macos-14_arm64,windows-2019_x64,windows-2019_x86,windows-2019_arm64' }}".Split(",").Trim()
+          [String[]]$configurations = "${{ inputs.platforms || 'ubuntu-22.04,ubuntu-22.04_arm64,ubuntu-24.04,ubuntu-24.04_arm64,macos-13,macos-14_arm64,windows-2019_x64,windows-2019_x86,windows-2019_arm64' }}".Split(",").Trim()
           [String[]]$buildModes = "${{ inputs.threading_build_modes || 'default' }}".Split(",").Trim()
           $matrix = @()
           
diff --git a/.github/workflows/releases-validation.yml b/.github/workflows/releases-validation.yml
index 0b35af985..4fdd2c643 100644
--- a/.github/workflows/releases-validation.yml
+++ b/.github/workflows/releases-validation.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-20.04, ubuntu-22.04, macos-13, ubuntu-latest]
+        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-13]
         python: [3.9.13, 3.10.11, 3.11.8, 3.12.7, 3.13.0]
     steps:
     - name: setup-python ${{ matrix.python }}
diff --git a/.github/workflows/test-python-version.yml b/.github/workflows/test-python-version.yml
index e11d9ac58..7f104715a 100644
--- a/.github/workflows/test-python-version.yml
+++ b/.github/workflows/test-python-version.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-20.04, ubuntu-22.04, ubuntu-latest, macos-13] 
+        os: [macos-latest, windows-latest, ubuntu-22.04, ubuntu-latest, macos-13] 
     steps:
     - name: Setup Python ${{ github.event.inputs.version }}
       uses: actions/setup-python@main
diff --git a/tests/ManifestConfig.Tests.ps1 b/tests/ManifestConfig.Tests.ps1
index 7ad12daf2..5d0ada456 100644
--- a/tests/ManifestConfig.Tests.ps1
+++ b/tests/ManifestConfig.Tests.ps1
@@ -4,19 +4,33 @@ $ConfigurationFile = Join-Path $PSScriptRoot "../config/python-manifest-config.j
 $Configuration = Read-ConfigurationFile -Filepath $ConfigurationFile
 
 $stableTestCases = @(
-    @{ ReleaseName = "python-3.8.3-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.8.3-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
-    @{ ReleaseName = "python-3.8.3-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
-    @{ ReleaseName = "python-3.8.3-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.8.3-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} }
+
+    @{ ReleaseName = "python-3.13.0-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
+    @{ ReleaseName = "python-3.13.0-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.13.0-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.13.0-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
+    @{ ReleaseName = "python-3.13.0-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} },
+    @{ ReleaseName = "python-3.13.0-darwin-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.13.0-linux-20.04-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.13.0-linux-22.04-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.13.0-win32-x64-freethreaded.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.13.0-win32-x86-freethreaded.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86-freethreaded"} }
+
 ) | ForEach-Object { $_.Configuration = $Configuration; $_ }
 
 $unstableTestCases = @(
-    @{ ReleaseName = "python-3.9.0-alpha.2-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.9.0-beta.2-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
-    @{ ReleaseName = "python-3.9.0-rc.4-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
-    @{ ReleaseName = "python-3.9.0-beta.2-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
-    @{ ReleaseName = "python-3.9.0-beta.2-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} }
+
+   @{ ReleaseName = "python-3.14.0-alpha.5-darwin-x64.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-linux-20.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-linux-22.04-x64.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-win32-x64.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-win32-x86.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-darwin-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "darwin"; platform_version = $null; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-linux-20.04-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "20.04"; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-linux-22.04-x64-freethreaded.tar.gz"; ExpectedResult = @{ platform = "linux"; platform_version = "22.04"; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-win32-x64-freethreaded.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x64-freethreaded"} },
+    @{ ReleaseName = "python-3.14.0-alpha.5-win32-x86-freethreaded.zip"; ExpectedResult = @{ platform = "win32"; platform_version = $null; arch = "x86-freethreaded"} }
+
 ) | ForEach-Object { $_.Configuration = $Configuration; $_ }
 
 Describe "Python manifest config" {