diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e0ccef7..f13eb57 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -85,6 +85,23 @@ build_windows:
         }
         & $dotnetExe restore
         & $dotnetExe build "imagecatalog\ImageCatalog 2.csproj" -c $env:BUILD_CONFIG -v minimal
+        # Write a minversion file into the build output so downstream jobs can read the computed version.
+        try {
+          $outRoot = Join-Path -Path "imagecatalog\bin\$env:BUILD_CONFIG" -ChildPath '*'
+          # search under the build output for a file starting with ImageCatalog.
+          $built = Get-ChildItem -Path (Join-Path "imagecatalog\bin\$env:BUILD_CONFIG" '.') -Recurse -File -ErrorAction SilentlyContinue | Where-Object { $_.Name -like 'ImageCatalog.*' } | Select-Object -First 1
+          if ($built) {
+            $base = [System.IO.Path]::GetFileNameWithoutExtension($built.Name)
+            $version = $base -replace '^ImageCatalog\.', ''
+            $minPath = Join-Path $built.DirectoryName 'minversion'
+            Write-Host "Writing minversion '$version' to $minPath"
+            Set-Content -Path $minPath -Value $version -Encoding UTF8
+          } else {
+            Write-Host 'No ImageCatalog build artifact found to derive minversion from.'
+          }
+        } catch {
+          Write-Host "Failed to write minversion: $_"
+        }
       }
   artifacts:
     paths: