diff --git a/.github/actions/test-setup-dotnet/action.yml b/.github/actions/test-setup-dotnet/action.yml
index 667b19cb..8de1e6ed 100644
--- a/.github/actions/test-setup-dotnet/action.yml
+++ b/.github/actions/test-setup-dotnet/action.yml
@@ -17,6 +17,8 @@ runs:
   steps:
     - name: Setup .NET Sdk
       uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '9.0.101'
 
     - name: Get .NET Channels
       uses: ./.github/actions/get-dotnet-channel
diff --git a/.github/workflows/test-build.yml b/.github/workflows/test-build.yml
index 581dd327..e4cdfa47 100644
--- a/.github/workflows/test-build.yml
+++ b/.github/workflows/test-build.yml
@@ -48,11 +48,13 @@ jobs:
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.101'
 
       - name: Build
         run: |
           if [[ "${{inputs.build_configuration}}" == 'ReleaseRef' ]]; then
-            dotnet build -c ${{inputs.build_configuration}} Harmony/Harmony.csproj
+            dotnet build -c Release Lib.Harmony.Ref/Lib.Harmony.Ref.csproj
           else
             dotnet build -c ${{inputs.build_configuration}} Harmony.sln
           fi
@@ -64,8 +66,8 @@ jobs:
           path: HarmonyTests/bin/**/*
 
       - name: Upload Harmony zip
-        if: ${{inputs.publish}}
+        if: ${{inputs.publish && inputs.build_configuration == 'Release'}}
         uses: actions/upload-artifact@v4
         with:
           name: Harmony-${{inputs.build_configuration}}-${{inputs.os}}
-          path: Harmony/bin/*.zip
+          path: packages/*.zip
diff --git a/.github/workflows/test-unix-mono.yml b/.github/workflows/test-unix-mono.yml
index 296ca612..eb82a8b8 100644
--- a/.github/workflows/test-unix-mono.yml
+++ b/.github/workflows/test-unix-mono.yml
@@ -79,7 +79,7 @@ jobs:
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '9.0.102'
+          dotnet-version: '9.0.101'
         env:
           DOTNET_INSTALL_DIR: ${{ runner.temp }}/.dotnet
 
diff --git a/.github/workflows/test-windows-dotnet.yml b/.github/workflows/test-windows-dotnet.yml
index 50081fe7..9b246626 100644
--- a/.github/workflows/test-windows-dotnet.yml
+++ b/.github/workflows/test-windows-dotnet.yml
@@ -46,7 +46,7 @@ env:
 jobs:
   unix-net:
     name: ${{ inputs.build_configuration }}
-    runs-on: windows-latest
+    runs-on: windows-2025
     continue-on-error: ${{inputs.experimental}}
     timeout-minutes: 10
     steps:
diff --git a/.github/workflows/test-windows-framework.yml b/.github/workflows/test-windows-framework.yml
index 6463e003..b2b7b91d 100644
--- a/.github/workflows/test-windows-framework.yml
+++ b/.github/workflows/test-windows-framework.yml
@@ -56,6 +56,8 @@ jobs:
 
       - name: Setup .NET Sdk
         uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.101'
 
       - name: Get Installed .NET Sdk Information
         run: dotnet --info
diff --git a/.github/workflows/test-windows-mono.yml b/.github/workflows/test-windows-mono.yml
index c067fda5..f91844ad 100644
--- a/.github/workflows/test-windows-mono.yml
+++ b/.github/workflows/test-windows-mono.yml
@@ -46,7 +46,7 @@ env:
 jobs:
   windows-mono:
     name: ${{ inputs.build_configuration }}
-    runs-on: windows-latest
+    runs-on: windows-2025
     continue-on-error: ${{inputs.experimental}}
     timeout-minutes: 10
     steps:
@@ -56,6 +56,8 @@ jobs:
 
       - name: Setup .NET Sdk
         uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.101'
 
       - name: Get Installed .NET Sdk Information
         run: dotnet --info
diff --git a/HarmonyTests/TestTools.cs b/HarmonyTests/TestTools.cs
index 0b7f43fa..01216ddf 100644
--- a/HarmonyTests/TestTools.cs
+++ b/HarmonyTests/TestTools.cs
@@ -290,7 +290,7 @@ static void SkipExplicitTestIfVSTest()
 				// Indirect ways to determine whether the adapter is used in various ways:
 				// 1) process name starts with "testhost" (e.g. testhost.x86)
 				// 2) process name starts with "vstest" (e.g. vstest.console)
-				var process = Process.GetCurrentProcess();
+				using var process = Process.GetCurrentProcess();
 				if (process.ProcessName.StartsWith("testhost") || process.ProcessName.StartsWith("vstest"))
 					throw GetExplicitException(test);
 				// 3) process modules include a *VisualStudio* dll