diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b5f9915..4d250780 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,7 +15,6 @@ Please ADD ALL Changes to the UNRELEASED SECTION and not a specific release
 - SDK - Update DotNet to 9.0 RC1
 - SDK - Updated DotNet SDK to 9.0.100-rc.2.24474.11
 - Dependencies - Updated xunit to 2.9.2
-- Dependencies - Updated Microsoft.Extensions to 8.0.2
 - Dependencies - Updated Microsoft.NET.Test.Sdk to 17.11.1
 - Dependencies - Updated NuGet to 6.11.1
 - Dependencies - Updated Roslynator.Analyzers to 4.12.9
@@ -26,6 +25,7 @@ Please ADD ALL Changes to the UNRELEASED SECTION and not a specific release
 - Dependencies - Updated FunFair.CodeAnalysis to 7.0.32.711
 - Dependencies - Updated FunFair.Test.Common to 6.1.238.970
 - Dependencies - Updated Credfeto.Version.Information.Generator to 1.0.11.111
+- Dependencies - Updated Microsoft.Extensions to 9.0.0
 ### Removed
 ### Deployment Changes
 
diff --git a/src/FunFair.BuildCheck.Helpers/FunFair.BuildCheck.Helpers.csproj b/src/FunFair.BuildCheck.Helpers/FunFair.BuildCheck.Helpers.csproj
index ef5292c3..394c86eb 100644
--- a/src/FunFair.BuildCheck.Helpers/FunFair.BuildCheck.Helpers.csproj
+++ b/src/FunFair.BuildCheck.Helpers/FunFair.BuildCheck.Helpers.csproj
@@ -26,7 +26,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
@@ -54,7 +54,7 @@
   </PropertyGroup>
   <Import Project="$(SolutionDir)FunFair.props" />
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.0" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="AsyncFixer" Version="1.6.0" PrivateAssets="All" ExcludeAssets="runtime" />
diff --git a/src/FunFair.BuildCheck.Interfaces/FunFair.BuildCheck.Interfaces.csproj b/src/FunFair.BuildCheck.Interfaces/FunFair.BuildCheck.Interfaces.csproj
index ae80d2cf..d4c5cda9 100644
--- a/src/FunFair.BuildCheck.Interfaces/FunFair.BuildCheck.Interfaces.csproj
+++ b/src/FunFair.BuildCheck.Interfaces/FunFair.BuildCheck.Interfaces.csproj
@@ -26,7 +26,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck.ProjectChecks/FunFair.BuildCheck.ProjectChecks.csproj b/src/FunFair.BuildCheck.ProjectChecks/FunFair.BuildCheck.ProjectChecks.csproj
index c1f28690..b0018b75 100644
--- a/src/FunFair.BuildCheck.ProjectChecks/FunFair.BuildCheck.ProjectChecks.csproj
+++ b/src/FunFair.BuildCheck.ProjectChecks/FunFair.BuildCheck.ProjectChecks.csproj
@@ -26,7 +26,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck.ProjectChecks/ReferencedPackages/MustNotDisableUnexpectedWarnings.cs b/src/FunFair.BuildCheck.ProjectChecks/ReferencedPackages/MustNotDisableUnexpectedWarnings.cs
index 34382eeb..8f7b88cf 100644
--- a/src/FunFair.BuildCheck.ProjectChecks/ReferencedPackages/MustNotDisableUnexpectedWarnings.cs
+++ b/src/FunFair.BuildCheck.ProjectChecks/ReferencedPackages/MustNotDisableUnexpectedWarnings.cs
@@ -131,12 +131,12 @@ private static IReadOnlyList<string> ExtractWarnings(string value)
     {
         return
         [
-            ..value.Split(separator: ";")
+            ..value.Split(separator: ';')
                    .Where(predicate: HasContent)
-                   .SelectMany(selector: static s => s.Split(separator: ",")
+                   .SelectMany(selector: static s => s.Split(separator: ',')
                                                       .Where(predicate: HasContent))
                    .Where(predicate: static s => !string.IsNullOrWhiteSpace(s))
-                   .OrderBy(keySelector: static s => s, comparer: StringComparer.OrdinalIgnoreCase)
+                   .Order(StringComparer.OrdinalIgnoreCase)
         ];
     }
 
diff --git a/src/FunFair.BuildCheck.Runner.Tests/FunFair.BuildCheck.Runner.Tests.csproj b/src/FunFair.BuildCheck.Runner.Tests/FunFair.BuildCheck.Runner.Tests.csproj
index b846ec1c..ca20e514 100644
--- a/src/FunFair.BuildCheck.Runner.Tests/FunFair.BuildCheck.Runner.Tests.csproj
+++ b/src/FunFair.BuildCheck.Runner.Tests/FunFair.BuildCheck.Runner.Tests.csproj
@@ -24,7 +24,7 @@
     <OptimizationPreference>speed</OptimizationPreference>
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck.Runner/FunFair.BuildCheck.Runner.csproj b/src/FunFair.BuildCheck.Runner/FunFair.BuildCheck.Runner.csproj
index a7c2d47e..6d0ab0b3 100644
--- a/src/FunFair.BuildCheck.Runner/FunFair.BuildCheck.Runner.csproj
+++ b/src/FunFair.BuildCheck.Runner/FunFair.BuildCheck.Runner.csproj
@@ -26,7 +26,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck.SolutionChecks/FunFair.BuildCheck.SolutionChecks.csproj b/src/FunFair.BuildCheck.SolutionChecks/FunFair.BuildCheck.SolutionChecks.csproj
index a488e175..7bac5aba 100644
--- a/src/FunFair.BuildCheck.SolutionChecks/FunFair.BuildCheck.SolutionChecks.csproj
+++ b/src/FunFair.BuildCheck.SolutionChecks/FunFair.BuildCheck.SolutionChecks.csproj
@@ -26,7 +26,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck.Tests/FunFair.BuildCheck.Tests.csproj b/src/FunFair.BuildCheck.Tests/FunFair.BuildCheck.Tests.csproj
index 751197a6..486238ed 100644
--- a/src/FunFair.BuildCheck.Tests/FunFair.BuildCheck.Tests.csproj
+++ b/src/FunFair.BuildCheck.Tests/FunFair.BuildCheck.Tests.csproj
@@ -24,7 +24,7 @@
     <OptimizationPreference>speed</OptimizationPreference>
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/FunFair.BuildCheck/FunFair.BuildCheck.csproj b/src/FunFair.BuildCheck/FunFair.BuildCheck.csproj
index b0b75c61..09a5f612 100644
--- a/src/FunFair.BuildCheck/FunFair.BuildCheck.csproj
+++ b/src/FunFair.BuildCheck/FunFair.BuildCheck.csproj
@@ -30,7 +30,7 @@
     <RunAOTCompilation>false</RunAOTCompilation>
     <RuntimeIdentifiers>win-x64;win-arm64;osx-x64;osx-arm64;linux-x64;linux-arm64</RuntimeIdentifiers>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <ToolCommandName>buildcheck</ToolCommandName>
@@ -61,9 +61,9 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Credfeto.Enumeration.Source.Generation.Attributes" Version="1.1.22.677" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.2" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.CommandLine" Version="8.0.0" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.CommandLine" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.0" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="AsyncFixer" Version="1.6.0" PrivateAssets="All" ExcludeAssets="runtime" />