diff --git a/.github/workflows/Build-And-Test.yml b/.github/workflows/Build-And-Test.yml
index 39e9e12c5..9fe5827ac 100644
--- a/.github/workflows/Build-And-Test.yml
+++ b/.github/workflows/Build-And-Test.yml
@@ -22,20 +22,20 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 8.0.x
 
     - name: Setup MSBuild.exe
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
 
     - name: Setup NuGet.exe for use with actions
-      uses: NuGet/setup-nuget@v1
+      uses: NuGet/setup-nuget@v2
 
     - name: Build MIDebugEngine
       run: |
@@ -44,7 +44,7 @@ jobs:
         Configuration: ${{ matrix.configuration }}
 
     - name: Setup VSTest.console.exe
-      uses: darenm/Setup-VSTest@v1.2
+      uses: darenm/Setup-VSTest@v1.3
 
     - name: Run VS Extension tests
       run: vstest.console.exe ${{ github.workspace }}\bin\${{ matrix.configuration }}\MICoreUnitTests.dll ${{ github.workspace }}\bin\${{ matrix.configuration }}\JDbgUnitTests.dll ${{ github.workspace }}\bin\${{ matrix.configuration }}\SSHDebugTests.dll ${{ github.workspace }}\bin\${{ matrix.configuration }}\MIDebugEngineUnitTests.dll
@@ -54,20 +54,20 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 8.0.x
 
     - name: Setup MSBuild.exe
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
 
     - name: Setup NuGet.exe for use with actions
-      uses: NuGet/setup-nuget@v1
+      uses: NuGet/setup-nuget@v2
 
     - name: Build MIDebugEngine
       run: |
@@ -102,7 +102,7 @@ jobs:
         dotnet test $CppTestsPath --logger "trx;LogFileName=$ResultsPath"
 
     - name: 'Upload Test Results'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
         name: win_msys2_x64_results
@@ -112,12 +112,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 8.0.x
 
@@ -143,7 +143,7 @@ jobs:
         ${{ github.workspace }}/eng/Scripts/CI-Test.sh
 
     - name: 'Upload Test Results'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
         name: linux_x64_results
@@ -153,12 +153,12 @@ jobs:
     runs-on: macos-12
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: 8.0.x
 
@@ -172,7 +172,7 @@ jobs:
         ${{ github.workspace }}/eng/Scripts/CI-Test.sh
 
     - name: 'Upload Test Results'
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: ${{ always() }}
       with:
         name: osx_x64_results
diff --git a/src/DebugEngineHost/HostOutputWindow.cs b/src/DebugEngineHost/HostOutputWindow.cs
index 1d2b63632..9dec6445a 100644
--- a/src/DebugEngineHost/HostOutputWindow.cs
+++ b/src/DebugEngineHost/HostOutputWindow.cs
@@ -117,7 +117,7 @@ public static void Write(string message, string pane = DefaultOutputPane)
                     }
 
                     // Output the text
-                    outputPane.OutputString(message);
+                    outputPane.OutputStringThreadSafe(message);
                 }
                 catch (Exception)
                 {
diff --git a/src/MIDebugPackage/MIDebugPackagePackage.cs b/src/MIDebugPackage/MIDebugPackagePackage.cs
index be94cc4cd..1820a382a 100644
--- a/src/MIDebugPackage/MIDebugPackagePackage.cs
+++ b/src/MIDebugPackage/MIDebugPackagePackage.cs
@@ -405,29 +405,36 @@ private void EnableLogging(bool sendToOutputWindow, string logFile)
             ThreadHelper.ThrowIfNotOnUIThread();
 
             IVsDebugger debugger = (IVsDebugger)GetService(typeof(IVsDebugger));
-            DBGMODE[] mode = new DBGMODE[] { DBGMODE.DBGMODE_Design };
-            int hr = debugger.GetMode(mode);
-
-            if (hr == VSConstants.S_OK && mode[0] != DBGMODE.DBGMODE_Design)
+            if (debugger != null)
             {
-                throw new ArgumentException("Unable to update MIDebugLog while debugging.");
-            }
+                DBGMODE[] mode = new DBGMODE[] { DBGMODE.DBGMODE_Design };
+                int hr = debugger.GetMode(mode);
 
-            try
-            {
-                MIDebugCommandDispatcher.EnableLogging(sendToOutputWindow, logFile);
-            }
-            catch (Exception e)
-            {
-                var commandWindow = (IVsCommandWindow)GetService(typeof(SVsCommandWindow));
-                if (commandWindow != null)
+                if (hr == VSConstants.S_OK && mode[0] != DBGMODE.DBGMODE_Design)
                 {
-                    commandWindow.Print(string.Format(CultureInfo.CurrentCulture, "Error: {0}\r\n", e.Message));
+                    throw new ArgumentException("Unable to update MIDebugLog while debugging.");
                 }
-                else
+
+                try
                 {
-                    throw new InvalidOperationException("Why is IVsCommandWindow null?");
+                    MIDebugCommandDispatcher.EnableLogging(sendToOutputWindow, logFile);
                 }
+                catch (Exception e)
+                {
+                    var commandWindow = (IVsCommandWindow)GetService(typeof(SVsCommandWindow));
+                    if (commandWindow != null)
+                    {
+                        commandWindow.Print(string.Format(CultureInfo.CurrentCulture, "Error: {0}\r\n", e.Message));
+                    }
+                    else
+                    {
+                        throw new InvalidOperationException("Why is IVsCommandWindow null?");
+                    }
+                }
+            }
+            else
+            {
+                throw new InvalidOperationException("Why is IVsDebugger null?");
             }
         }
 
diff --git a/src/SSHDebugPS/VsOutputWindowWrapper.cs b/src/SSHDebugPS/VsOutputWindowWrapper.cs
index 5e4d7527e..1076f6eb5 100644
--- a/src/SSHDebugPS/VsOutputWindowWrapper.cs
+++ b/src/SSHDebugPS/VsOutputWindowWrapper.cs
@@ -118,7 +118,7 @@ public static void Write(string message, string pane = DefaultOutputPane)
                     }
 
                     // Output the text
-                    outputPane.OutputString(message);
+                    outputPane.OutputStringThreadSafe(message);
                 }
                 catch (Exception)
                 {
diff --git a/test/DebuggerTesting/OpenDebug/RunnerException.cs b/test/DebuggerTesting/OpenDebug/RunnerException.cs
index 31fa5536c..c085c865d 100644
--- a/test/DebuggerTesting/OpenDebug/RunnerException.cs
+++ b/test/DebuggerTesting/OpenDebug/RunnerException.cs
@@ -32,11 +32,5 @@ public RunnerException(string message, Exception innerException)
 
         public RunnerException(Exception innerException, string messageFormat, params object[] messageArgs)
             : base(string.Format(CultureInfo.CurrentCulture, messageFormat, messageArgs), innerException) { }
-
-#if !CORECLR
-        // Required for serialization
-        protected RunnerException(SerializationInfo info, StreamingContext context)
-            : base(info, context) { }
-#endif
     }
 }