From 7cd427af6b0a92868c84c80d5ff2831f2d48fd1f Mon Sep 17 00:00:00 2001
From: David Fowler <davidfowl@gmail.com>
Date: Tue, 8 Jun 2021 21:54:20 -0700
Subject: [PATCH 1/3] Remove the cast

---
 .../Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ProjectTemplates/Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs b/src/ProjectTemplates/Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
index 95163f97f58f..ba1fabff931e 100644
--- a/src/ProjectTemplates/Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
+++ b/src/ProjectTemplates/Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
@@ -10,6 +10,6 @@
     app.UseDeveloperExceptionPage();
 }
 
-app.MapGet("/", (Func<string>)(() => "Hello World!"));
+app.MapGet("/", () => "Hello World!");
 
 app.Run();

From 5876a196f339261812fe39f25b7b86953af3f70f Mon Sep 17 00:00:00 2001
From: David Fowler <davidfowl@gmail.com>
Date: Wed, 9 Jun 2021 01:19:28 -0700
Subject: [PATCH 2/3] Add language version preview

---
 .../Web.ProjectTemplates/EmptyWeb-CSharp.csproj.in               | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ProjectTemplates/Web.ProjectTemplates/EmptyWeb-CSharp.csproj.in b/src/ProjectTemplates/Web.ProjectTemplates/EmptyWeb-CSharp.csproj.in
index f685d2d72dac..29cbeb320f96 100644
--- a/src/ProjectTemplates/Web.ProjectTemplates/EmptyWeb-CSharp.csproj.in
+++ b/src/ProjectTemplates/Web.ProjectTemplates/EmptyWeb-CSharp.csproj.in
@@ -4,6 +4,7 @@
     <TargetFramework>${DefaultNetCoreTargetFramework}</TargetFramework>
     <NoDefaultLaunchSettingsFile Condition="'$(ExcludeLaunchSettings)' == 'True'">True</NoDefaultLaunchSettingsFile>
     <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">Company.WebApplication1</RootNamespace>
+    <LangVersion>preview</LangVersion>
   </PropertyGroup>
 
 </Project>

From 7edf1d9625dc3a15b96d0ea08dc43c2b76e947be Mon Sep 17 00:00:00 2001
From: David Fowler <davidfowl@gmail.com>
Date: Sat, 12 Jun 2021 01:48:49 -0700
Subject: [PATCH 3/3] Remove implicit Microsoft.Net.Compilers.TooSet dependency

---
 eng/tools/GenerateFiles/Directory.Build.targets.in | 4 ----
 eng/tools/GenerateFiles/GenerateFiles.csproj       | 1 -
 2 files changed, 5 deletions(-)

diff --git a/eng/tools/GenerateFiles/Directory.Build.targets.in b/eng/tools/GenerateFiles/Directory.Build.targets.in
index 72b61969c194..53cd9040e933 100644
--- a/eng/tools/GenerateFiles/Directory.Build.targets.in
+++ b/eng/tools/GenerateFiles/Directory.Build.targets.in
@@ -54,10 +54,6 @@
           Condition=" '$(IsServicingBuild)' != 'true' ">${MicrosoftAspNetCoreAppRefVersion}</TargetingPackVersion>
     </KnownFrameworkReference>
 
-    <PackageReference Include="Microsoft.Net.Compilers.Toolset"
-      Version="${MicrosoftNetCompilersToolsetVersion}"
-      PrivateAssets="all"
-      IsImplicitlyDefined="true" />
   </ItemGroup>
 
   <!-- Warn if the "just-built" ASP.NET Core shared framework does not exist. -->
diff --git a/eng/tools/GenerateFiles/GenerateFiles.csproj b/eng/tools/GenerateFiles/GenerateFiles.csproj
index 13eb916ee2ca..b53ee6336fc2 100644
--- a/eng/tools/GenerateFiles/GenerateFiles.csproj
+++ b/eng/tools/GenerateFiles/GenerateFiles.csproj
@@ -13,7 +13,6 @@
         MicrosoftAspNetCoreAppRuntimeVersion=$(SharedFxVersion);
         MicrosoftNETCoreAppRefVersion=$(MicrosoftNETCoreAppRefVersion);
         MicrosoftNETCoreAppRuntimeVersion=$(MicrosoftNETCoreAppRuntimeVersion);
-        MicrosoftNetCompilersToolsetVersion=$(MicrosoftNetCompilersToolsetVersion);
         SupportedRuntimeIdentifiers=$(SupportedRuntimeIdentifiers.Trim())
       </_TemplateProperties>
     </PropertyGroup>