diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 81b40fd16..50ebd69aa 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -34,7 +34,7 @@ jobs:
 
   # Test solution #
 
-    # Run .NET 8 unit tests
+  # Run .NET 8 unit tests
   - script: dotnet test --no-build -c $(Build.Configuration) -f net8.0 -l "trx;LogFileName=VSTestResults_net8.0.trx"
     displayName: Run .NET 8 unit tests
 
@@ -42,10 +42,6 @@ jobs:
   - script: dotnet test --no-build -c $(Build.Configuration) -f net7.0 -l "trx;LogFileName=VSTestResults_net7.0.trx"
     displayName: Run .NET 7 unit tests
 
-  # Run .NET 6 unit tests
-  - script: dotnet test --no-build -c $(Build.Configuration) -f net6.0 -l "trx;LogFileName=VSTestResults_net6.0.trx"
-    displayName: Run .NET 6 unit tests
-
   # Run .NET Framework 4.7.2 unit tests
   - script: dotnet test --no-build -c $(Build.Configuration) -f net472 -l "trx;LogFileName=VSTestResults_net472.trx"
     displayName: Run .NET Framework 4.7.2 unit tests
diff --git a/src/CommunityToolkit.Common/CommunityToolkit.Common.csproj b/src/CommunityToolkit.Common/CommunityToolkit.Common.csproj
index ddf81b30c..a7d4a430b 100644
--- a/src/CommunityToolkit.Common/CommunityToolkit.Common.csproj
+++ b/src/CommunityToolkit.Common/CommunityToolkit.Common.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/CommunityToolkit.Common/Deferred/EventDeferral.cs b/src/CommunityToolkit.Common/Deferred/EventDeferral.cs
index d5a36b7cb..65660ff03 100644
--- a/src/CommunityToolkit.Common/Deferred/EventDeferral.cs
+++ b/src/CommunityToolkit.Common/Deferred/EventDeferral.cs
@@ -4,6 +4,9 @@
 
 using System;
 using System.ComponentModel;
+#if NET8_0_OR_GREATER
+using System.Runtime.CompilerServices;
+#endif
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -16,8 +19,11 @@ namespace CommunityToolkit.Common.Deferred;
 /// </summary>
 public class EventDeferral : IDisposable
 {
-    // TODO: If/when .NET 6 is base, we can upgrade to non-generic version
+#if NET8_0_OR_GREATER
+    private readonly TaskCompletionSource taskCompletionSource = new();
+#else
     private readonly TaskCompletionSource<object?> taskCompletionSource = new();
+#endif
 
     internal EventDeferral()
     {
@@ -26,7 +32,14 @@ internal EventDeferral()
     /// <summary>
     /// Call when finished with the Deferral.
     /// </summary>
-    public void Complete() => this.taskCompletionSource.TrySetResult(null);
+    public void Complete()
+    {
+#if NET8_0_OR_GREATER
+        this.taskCompletionSource.TrySetResult();
+#else
+        this.taskCompletionSource.TrySetResult(null);
+#endif
+    }
 
     /// <summary>
     /// Waits for the <see cref="EventDeferral"/> to be completed by the event handler.
@@ -38,9 +51,19 @@ internal EventDeferral()
     [Obsolete("This is an internal only method to be used by EventHandler extension classes, public callers should call GetDeferral() instead on the DeferredEventArgs.")]
     public async Task WaitForCompletion(CancellationToken cancellationToken)
     {
-        using (cancellationToken.Register(() => this.taskCompletionSource.TrySetCanceled()))
+        using (cancellationToken.Register(
+#if NET8_0_OR_GREATER
+            callback: static obj => Unsafe.As<EventDeferral>(obj!).taskCompletionSource.TrySetCanceled(),
+#else
+            callback: static obj => ((EventDeferral)obj).taskCompletionSource.TrySetCanceled(),
+#endif
+            state: this))
         {
+#if NET8_0_OR_GREATER
+            await this.taskCompletionSource.Task;
+#else
             _ = await this.taskCompletionSource.Task;
+#endif
         }
     }
 
diff --git a/src/CommunityToolkit.Diagnostics/CommunityToolkit.Diagnostics.csproj b/src/CommunityToolkit.Diagnostics/CommunityToolkit.Diagnostics.csproj
index fec859625..5f14958a6 100644
--- a/src/CommunityToolkit.Diagnostics/CommunityToolkit.Diagnostics.csproj
+++ b/src/CommunityToolkit.Diagnostics/CommunityToolkit.Diagnostics.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/CommunityToolkit.HighPerformance/CommunityToolkit.HighPerformance.csproj b/src/CommunityToolkit.HighPerformance/CommunityToolkit.HighPerformance.csproj
index 2cf7770af..1f17262a5 100644
--- a/src/CommunityToolkit.HighPerformance/CommunityToolkit.HighPerformance.csproj
+++ b/src/CommunityToolkit.HighPerformance/CommunityToolkit.HighPerformance.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.FeatureSwitches.targets b/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.FeatureSwitches.targets
index bf6d6ed6c..fefee0e8e 100644
--- a/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.FeatureSwitches.targets
+++ b/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.FeatureSwitches.targets
@@ -16,9 +16,9 @@
   <!--
     Configuration for the feature switches (to support IL trimming).
     See the 'ILLink.Substitutions.xml' file for more details on that.
-    We only include these on .NET 6 and above (no .xml file otherwise).
+    We only include these on .NET 8 and above (no .xml file otherwise).
   -->
-  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">
+  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
 
     <!-- MVVMTOOLKIT_ENABLE_INOTIFYPROPERTYCHANGING_SUPPORT switch -->
     <RuntimeHostConfigurationOption Include="MVVMTOOLKIT_ENABLE_INOTIFYPROPERTYCHANGING_SUPPORT"
diff --git a/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj b/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
index cddfad4af..522b215a5 100644
--- a/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
+++ b/src/CommunityToolkit.Mvvm/CommunityToolkit.Mvvm.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1;net6.0;net8.0;net8.0-windows10.0.17763.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netstandard2.1;net8.0;net8.0-windows10.0.17763.0</TargetFrameworks>
   </PropertyGroup>
 
   <!--
@@ -55,7 +55,7 @@
   </ItemGroup>
 
   <!-- Include the ILLink file (to properly trim configuration switches in publish builds) -->
-  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">
+  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
     <EmbeddedResource Include="Properties\ILLink.Substitutions.xml" LogicalName="ILLink.Substitutions.xml" />
   </ItemGroup>
 
diff --git a/src/Directory.Build.targets b/src/Directory.Build.targets
index 23f65c476..7239f4a2e 100644
--- a/src/Directory.Build.targets
+++ b/src/Directory.Build.targets
@@ -7,14 +7,6 @@
     <DefineConstants>NETSTANDARD2_1_OR_GREATER</DefineConstants>
   </PropertyGroup>
 
-  <!-- Configure trimming for projects on .NET 6 and above -->
-  <PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))">
-    <IsTrimmable>true</IsTrimmable>
-    <EnableTrimAnalyzer>true</EnableTrimAnalyzer>
-    <EnableAotAnalyzer>true</EnableAotAnalyzer>
-    <EnableSingleFileAnalyzer>true</EnableSingleFileAnalyzer>
-  </PropertyGroup>
-
   <!-- Set the AOT property directly on .NET 8 and above -->
   <PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
     <IsAotCompatible>true</IsAotCompatible>
diff --git a/tests/CommunityToolkit.Common.UnitTests/CommunityToolkit.Common.UnitTests.csproj b/tests/CommunityToolkit.Common.UnitTests/CommunityToolkit.Common.UnitTests.csproj
index 76bc41862..e47e06627 100644
--- a/tests/CommunityToolkit.Common.UnitTests/CommunityToolkit.Common.UnitTests.csproj
+++ b/tests/CommunityToolkit.Common.UnitTests/CommunityToolkit.Common.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/CommunityToolkit.Diagnostics.UnitTests/CommunityToolkit.Diagnostics.UnitTests.csproj b/tests/CommunityToolkit.Diagnostics.UnitTests/CommunityToolkit.Diagnostics.UnitTests.csproj
index f3a582df1..633cc0fa4 100644
--- a/tests/CommunityToolkit.Diagnostics.UnitTests/CommunityToolkit.Diagnostics.UnitTests.csproj
+++ b/tests/CommunityToolkit.Diagnostics.UnitTests/CommunityToolkit.Diagnostics.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/CommunityToolkit.HighPerformance.UnitTests/CommunityToolkit.HighPerformance.UnitTests.csproj b/tests/CommunityToolkit.HighPerformance.UnitTests/CommunityToolkit.HighPerformance.UnitTests.csproj
index e49f035d4..772b868c5 100644
--- a/tests/CommunityToolkit.HighPerformance.UnitTests/CommunityToolkit.HighPerformance.UnitTests.csproj
+++ b/tests/CommunityToolkit.HighPerformance.UnitTests/CommunityToolkit.HighPerformance.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
     <EnablePreviewFeatures>true</EnablePreviewFeatures>
     <NoWarn>$(NoWarn);CA2252</NoWarn>
   </PropertyGroup>
diff --git a/tests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests.csproj
index 63a4b907a..5853d5a5c 100644
--- a/tests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests/CommunityToolkit.Mvvm.DisableINotifyPropertyChanging.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/CommunityToolkit.Mvvm.Internals.UnitTests/CommunityToolkit.Mvvm.Internals.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.Internals.UnitTests/CommunityToolkit.Mvvm.Internals.UnitTests.csproj
index 421cc2315..acb777815 100644
--- a/tests/CommunityToolkit.Mvvm.Internals.UnitTests/CommunityToolkit.Mvvm.Internals.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.Internals.UnitTests/CommunityToolkit.Mvvm.Internals.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests.csproj
index c678777f5..eb46db98f 100644
--- a/tests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.Roslyn4001.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
     <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
   </PropertyGroup>
 
diff --git a/tests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests.csproj
index bd5ce9114..b70464cb4 100644
--- a/tests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.Roslyn4031.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
     <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
   </PropertyGroup>
 
diff --git a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests.csproj
index 21b341ca9..3656cfdf1 100644
--- a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4001.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests.csproj
index 9e59eeb93..495ef1dca 100644
--- a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4031.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
     <DefineConstants>$(DefineConstants);ROSLYN_4_3_1_OR_GREATER</DefineConstants>
   </PropertyGroup>
 
diff --git a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests.csproj b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests.csproj
index 83566c52d..a6b432501 100644
--- a/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests.csproj
+++ b/tests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests/CommunityToolkit.Mvvm.SourceGenerators.Roslyn4110.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net472;net7.0;net8.0</TargetFrameworks>
     <DefineConstants>$(DefineConstants);ROSLYN_4_3_1_OR_GREATER;ROSLYN_4_11_0_OR_GREATER</DefineConstants>
   </PropertyGroup>
 
diff --git a/tests/CommunityToolkit.Mvvm.UnitTests/Test_ObservablePropertyAttribute.cs b/tests/CommunityToolkit.Mvvm.UnitTests/Test_ObservablePropertyAttribute.cs
index 6b3e25796..65ab55fe9 100644
--- a/tests/CommunityToolkit.Mvvm.UnitTests/Test_ObservablePropertyAttribute.cs
+++ b/tests/CommunityToolkit.Mvvm.UnitTests/Test_ObservablePropertyAttribute.cs
@@ -709,12 +709,8 @@ public void Test_ObservableProperty_NullabilityAnnotations_Complex()
         NullabilityInfo rightInfo2 = rightInnerInfo.GenericTypeArguments[2];
 
         Assert.AreEqual(typeof(object), rightInfo2.Type);
-        //Assert.AreEqual(NullabilityState.NotNull, rightInfo2.ReadState);
-        //Assert.AreEqual(NullabilityState.NotNull, rightInfo2.WriteState);
-
-        // The commented out lines are to work around a bug in the NullabilityInfo API in .NET 6.
-        // This has been fixed for .NET 7: https://github.com/dotnet/runtime/pull/63556. The test
-        // cases above can be uncommented when the .NET 7 target (or a more recent version) is added.
+        Assert.AreEqual(NullabilityState.NotNull, rightInfo2.ReadState);
+        Assert.AreEqual(NullabilityState.NotNull, rightInfo2.WriteState);
     }
 #endif