diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index b97c62a..2022fbe 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -107,7 +107,7 @@ jobs:
           persist-credentials: false
 
       # Wheel Wizard runs the downloaded setup with --version and refuses it when the reported
-      # version differs from the release tag, so a tag that was pushed without bumping every pinned
+      # version differs from the release tag, so a tag that was pushed without bumping the pinned
       # version would ship an update nobody can install. Catch that before anything is published.
       - name: Verify the tag matches the pinned setup version
         env:
@@ -122,9 +122,7 @@ jobs:
               status=1
             fi
           }
-          check Launcher/WiiCompiled.Setup.Windows/Program.cs "public const string Version = \"$version\";"
-          check Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj "<Version>$version</Version>"
-          check Launcher/Build-Installer.ps1 "ProductVersion = '$version'"
+          check Launcher/Directory.Build.props "<Version>$version</Version>"
           exit $status
 
       # The build jobs upload with `archive: false`, which stores each installer as a raw file
diff --git a/Launcher/Build-Installer.ps1 b/Launcher/Build-Installer.ps1
index 6113d7f..17f2b17 100644
--- a/Launcher/Build-Installer.ps1
+++ b/Launcher/Build-Installer.ps1
@@ -279,9 +279,12 @@ foreach ($required in @('ToolkitFingerprint','TranslationFingerprint','NativeToo
     if ([string]::IsNullOrWhiteSpace($identities.$required)) { throw "Payload identity output is missing $required." }
 }
 
+$productVersion = ((& $setupHost --version) -join '').Trim()
+if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($productVersion)) { throw 'The setup host did not report its version.' }
+
 $manifest = [ordered]@{
     SchemaVersion = 2
-    ProductVersion = '0.2.32'
+    ProductVersion = $productVersion
     ExpectedGameId = $pins.GameId
     ExpectedDolSha256 = $pins.DolSha256
     ExpectedRelSha256 = $pins.RelSha256
diff --git a/Launcher/Directory.Build.props b/Launcher/Directory.Build.props
new file mode 100644
index 0000000..1010d80
--- /dev/null
+++ b/Launcher/Directory.Build.props
@@ -0,0 +1,7 @@
+<Project>
+  <PropertyGroup>
+    <!-- The one product version. Release tags must match it. -->
+    <Version>0.2.33</Version>
+    <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
+  </PropertyGroup>
+</Project>
diff --git a/Launcher/WiiCompiled.Setup.Common.Cli/WiiCompiled.Setup.Common.Cli.csproj b/Launcher/WiiCompiled.Setup.Common.Cli/WiiCompiled.Setup.Common.Cli.csproj
index e58d15b..364b745 100644
--- a/Launcher/WiiCompiled.Setup.Common.Cli/WiiCompiled.Setup.Common.Cli.csproj
+++ b/Launcher/WiiCompiled.Setup.Common.Cli/WiiCompiled.Setup.Common.Cli.csproj
@@ -6,7 +6,6 @@
     <Nullable>enable</Nullable>
     <RootNamespace>WiiCompiled.Setup.Common.Cli</RootNamespace>
     <AssemblyName>WiiCompiled.Setup.Common.Cli</AssemblyName>
-    <Version>0.2.32</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Packaging-time helper: resolves (downloading if needed) the nodtool binary bundled by build-appimage.sh and Build-Installer.ps1</Description>
diff --git a/Launcher/WiiCompiled.Setup.Common/WiiCompiled.Setup.Common.csproj b/Launcher/WiiCompiled.Setup.Common/WiiCompiled.Setup.Common.csproj
index 056ef5c..3991fc5 100644
--- a/Launcher/WiiCompiled.Setup.Common/WiiCompiled.Setup.Common.csproj
+++ b/Launcher/WiiCompiled.Setup.Common/WiiCompiled.Setup.Common.csproj
@@ -5,7 +5,6 @@
     <Nullable>enable</Nullable>
     <RootNamespace>WiiCompiled.Setup.Common</RootNamespace>
     <AssemblyName>WiiCompiled.Setup.Common</AssemblyName>
-    <Version>0.2.32</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Shared nodtool/Retro-WFC-payload logic used by both the Windows and Linux installers</Description>
diff --git a/Launcher/WiiCompiled.Setup.Linux/Models.cs b/Launcher/WiiCompiled.Setup.Linux/Models.cs
index ebe9964..387fa9a 100644
--- a/Launcher/WiiCompiled.Setup.Linux/Models.cs
+++ b/Launcher/WiiCompiled.Setup.Linux/Models.cs
@@ -1,9 +1,13 @@
+using System.Reflection;
+
 namespace WiiCompiled.Setup.Linux;
 
 internal static class ProductInfo
 {
     public const string Name = "WiiCompiled";
-    public const string Version = "0.2.32";
+    public static readonly string Version =
+        typeof(ProductInfo).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()!
+            .InformationalVersion;
 }
 
 /// <summary>One installed product's record inside install-state.json.</summary>
diff --git a/Launcher/WiiCompiled.Setup.Linux/WiiCompiled.Setup.Linux.csproj b/Launcher/WiiCompiled.Setup.Linux/WiiCompiled.Setup.Linux.csproj
index 639ec22..2737c4c 100644
--- a/Launcher/WiiCompiled.Setup.Linux/WiiCompiled.Setup.Linux.csproj
+++ b/Launcher/WiiCompiled.Setup.Linux/WiiCompiled.Setup.Linux.csproj
@@ -6,7 +6,6 @@
     <Nullable>enable</Nullable>
     <AssemblyName>WiiCompiled.Setup.Linux</AssemblyName>
     <RootNamespace>WiiCompiled.Setup.Linux</RootNamespace>
-    <Version>0.2.32</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Command-line installer and launcher for WiiCompiled on Linux</Description>
diff --git a/Launcher/WiiCompiled.Setup.Windows/Program.cs b/Launcher/WiiCompiled.Setup.Windows/Program.cs
index 4cdba8a..2f14065 100644
--- a/Launcher/WiiCompiled.Setup.Windows/Program.cs
+++ b/Launcher/WiiCompiled.Setup.Windows/Program.cs
@@ -1,5 +1,6 @@
 namespace WiiCompiled.Setup.Windows;
 
+using System.Reflection;
 using System.Runtime.InteropServices;
 
 internal static class Program
@@ -121,7 +122,9 @@ internal static class PlatformChecks
 internal static class ProductInfo
 {
     public const string Name = "WiiCompiled";
-    public const string Version = "0.2.32";
+    public static readonly string Version =
+        typeof(ProductInfo).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()!
+            .InformationalVersion;
 
     /// <summary>
     /// The setup executable is copied into the installation under this name. It is the launcher and
diff --git a/Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj b/Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj
index 9559e6f..6a30c74 100644
--- a/Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj
+++ b/Launcher/WiiCompiled.Setup.Windows/WiiCompiled.Setup.Windows.csproj
@@ -7,7 +7,6 @@
     <AssemblyName>WiiCompiled.Setup</AssemblyName>
     <RootNamespace>WiiCompiled.Setup.Windows</RootNamespace>
     <ApplicationManifest>app.manifest</ApplicationManifest>
-    <Version>0.2.32</Version>
     <Authors>patchzy</Authors>
     <Product>WiiCompiled</Product>
     <Description>Command-line installer and launcher for WiiCompiled</Description>