Update to 9.0.300 and RestoreEnablePackagePruning

Directory.Build.props

@@ -311,6 +311,8 @@
     <EnableNgenOptimization Condition="'$(EnableNgenOptimization)' == '' and ('$(Configuration)' == 'Release' or '$(Configuration)' == 'Checked')">true</EnableNgenOptimization>
     <!-- Enable NuGet static graph evaluation to optimize incremental restore -->
     <RestoreUseStaticGraphEvaluation>true</RestoreUseStaticGraphEvaluation>
+    <!-- Enable framework package pruning -->
+    <RestoreEnablePackagePruning>true</RestoreEnablePackagePruning>
     <!-- Turn off end of life target framework checks as we intentionally build older .NETCoreApp configurations. -->
     <CheckEolTargetFramework>false</CheckEolTargetFramework>
     <!-- Turn off workload support until we support them. -->
@@ -379,9 +381,9 @@
   <!-- Language configuration -->
   <PropertyGroup>
     <!-- default to allowing all language features -->
-    <LangVersion>preview</LangVersion>
+    <LangVersion>latest</LangVersion>
     <!-- default to max warnlevel -->
-    <AnalysisLevel Condition="'$(MSBuildProjectExtension)' == '.csproj'">preview</AnalysisLevel>
+    <AnalysisLevel Condition="'$(MSBuildProjectExtension)' == '.csproj'">latest</AnalysisLevel>
     <LangVersion Condition="'$(MSBuildProjectExtension)' == '.vbproj'">latest</LangVersion>
     <!-- Enables Strict mode for Roslyn compiler -->
     <Features>strict;nullablePublicOnly</Features>

eng/Analyzers.targets

@@ -22,7 +22,6 @@
     <PackageReference Include="Microsoft.DotNet.CodeAnalysis" Version="$(MicrosoftDotNetCodeAnalysisVersion)" PrivateAssets="all" IsImplicitlyDefined="true" />
     <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="$(MicrosoftCodeAnalysisNetAnalyzersVersion)" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.CodeStyle" Version="$(MicrosoftCodeAnalysisCSharpCodeStyleVersion)" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="$(MicrosoftCodeAnalysisAnalyzersVersion)" PrivateAssets="all" />
     <PackageReference Include="StyleCop.Analyzers" Version="$(StyleCopAnalyzersVersion)" PrivateAssets="all" />
   </ItemGroup>
   <ItemGroup Condition="'$(IsTestProject)' == 'true'">

eng/Versions.props

@@ -44,9 +44,9 @@
       Any tools that contribute to the design-time experience should use the MicrosoftCodeAnalysisVersion_LatestVS property above to ensure
       they do not break the local dev experience.
     -->
-    <MicrosoftCodeAnalysisCSharpVersion>4.12.0-3.24631.1</MicrosoftCodeAnalysisCSharpVersion>
-    <MicrosoftCodeAnalysisVersion>4.12.0-3.24631.1</MicrosoftCodeAnalysisVersion>
-    <MicrosoftNetCompilersToolsetVersion>4.12.0-3.24631.1</MicrosoftNetCompilersToolsetVersion>
+    <MicrosoftCodeAnalysisCSharpVersion>4.14.0-1.25072.8</MicrosoftCodeAnalysisCSharpVersion>
+    <MicrosoftCodeAnalysisVersion>4.14.0-1.25072.8</MicrosoftCodeAnalysisVersion>
+    <MicrosoftNetCompilersToolsetVersion>4.14.0-1.25072.8</MicrosoftNetCompilersToolsetVersion>
   </PropertyGroup>
   <!--
     For source generator support we need to target multiple versions of Roslyn in order to be able to run on older versions of Roslyn.

global.json

@@ -1,11 +1,11 @@
 {
   "sdk": {
-    "version": "9.0.100",
+    "version": "9.0.300-preview.0.25073.14",
     "allowPrerelease": true,
     "rollForward": "major"
   },
   "tools": {
-    "dotnet": "9.0.100"
+    "dotnet": "9.0.300-preview.0.25073.14"
   },
   "msbuild-sdks": {
     "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.25058.5",