diff --git a/Directory.Build.props b/Directory.Build.props
index 065616f3cd..6c951ddaca 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -14,9 +14,6 @@
     <RepositoryRoot>$(MSBuildThisFileDirectory)</RepositoryRoot>
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)build\Key.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
-    <AssemblySigningCertName>Microsoft</AssemblySigningCertName>
-    <PackageSigningCertName>MicrosoftNuGet</PackageSigningCertName>
-    <PublicSign Condition="'$(OS)' != 'Windows_NT'">true</PublicSign>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <UseRoutingFromFeatureBranch>true</UseRoutingFromFeatureBranch>
   </PropertyGroup>
diff --git a/src/Microsoft.AspNetCore.Mvc.Analyzers/Microsoft.AspNetCore.Mvc.Analyzers.csproj b/src/Microsoft.AspNetCore.Mvc.Analyzers/Microsoft.AspNetCore.Mvc.Analyzers.csproj
index bfaa4f6135..3030951867 100644
--- a/src/Microsoft.AspNetCore.Mvc.Analyzers/Microsoft.AspNetCore.Mvc.Analyzers.csproj
+++ b/src/Microsoft.AspNetCore.Mvc.Analyzers/Microsoft.AspNetCore.Mvc.Analyzers.csproj
@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <SignedPackageFile Include="analyzers/dotnet/cs/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
+    <SignedPackageFile Include="$(TargetPath)" PackagePath="analyzers/dotnet/cs/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
   </ItemGroup>
 
   <Target Name="PopulateNuspec" BeforeTargets="GenerateNuspec" DependsOnTargets="Build">
diff --git a/src/Microsoft.AspNetCore.Mvc.Api.Analyzers/Microsoft.AspNetCore.Mvc.Api.Analyzers.csproj b/src/Microsoft.AspNetCore.Mvc.Api.Analyzers/Microsoft.AspNetCore.Mvc.Api.Analyzers.csproj
index a4c48adc4b..50b645a854 100644
--- a/src/Microsoft.AspNetCore.Mvc.Api.Analyzers/Microsoft.AspNetCore.Mvc.Api.Analyzers.csproj
+++ b/src/Microsoft.AspNetCore.Mvc.Api.Analyzers/Microsoft.AspNetCore.Mvc.Api.Analyzers.csproj
@@ -20,7 +20,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <SignedPackageFile Include="analyzers/dotnet/cs/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
+    <SignedPackageFile Include="$(TargetPath)" PackagePath="analyzers/dotnet/cs/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
   </ItemGroup>
 
   <Target Name="PopulateNuspec" BeforeTargets="GenerateNuspec" DependsOnTargets="Build">
diff --git a/src/Microsoft.AspNetCore.Mvc.Core/Infrastructure/ClientErrorResultFilter.cs b/src/Microsoft.AspNetCore.Mvc.Core/Infrastructure/ClientErrorResultFilter.cs
index fd5911ea07..1ef66b1a33 100644
--- a/src/Microsoft.AspNetCore.Mvc.Core/Infrastructure/ClientErrorResultFilter.cs
+++ b/src/Microsoft.AspNetCore.Mvc.Core/Infrastructure/ClientErrorResultFilter.cs
@@ -43,6 +43,13 @@ namespace Microsoft.AspNetCore.Mvc.Infrastructure
                 return;
             }
 
+            // We do not have an upper bound on the allowed status code. This allows this filter to be used
+            // for 5xx and later status codes.
+            if (clientError.StatusCode < 400)
+            {
+                return;
+            }
+
             var result = _clientErrorFactory.GetClientError(context, clientError);
             if (result == null)
             {
diff --git a/src/Microsoft.AspNetCore.Mvc.Razor/Microsoft.AspNetCore.Mvc.Razor.csproj b/src/Microsoft.AspNetCore.Mvc.Razor/Microsoft.AspNetCore.Mvc.Razor.csproj
index decdf16adf..b63e6156e9 100644
--- a/src/Microsoft.AspNetCore.Mvc.Razor/Microsoft.AspNetCore.Mvc.Razor.csproj
+++ b/src/Microsoft.AspNetCore.Mvc.Razor/Microsoft.AspNetCore.Mvc.Razor.csproj
@@ -22,7 +22,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <SignedPackageFile Include="lib/$(TargetFramework)/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
+    <SignedPackageFile Include="$(TargetPath)" PackagePath="lib/$(TargetFramework)/$(TargetFileName)" Certificate="$(AssemblySigningCertName)" />
   </ItemGroup>
 
   <Target Name="PopulateNuspec" BeforeTargets="GenerateNuspec" DependsOnTargets="BuiltProjectOutputGroup;DebugSymbolsProjectOutputGroup;DocumentationProjectOutputGroup">
diff --git a/test/Microsoft.AspNetCore.Mvc.Core.Test/Infrastructure/ClientErrorResultFilterTest.cs b/test/Microsoft.AspNetCore.Mvc.Core.Test/Infrastructure/ClientErrorResultFilterTest.cs
index 83098744ff..0a2c6db76d 100644
--- a/test/Microsoft.AspNetCore.Mvc.Core.Test/Infrastructure/ClientErrorResultFilterTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.Core.Test/Infrastructure/ClientErrorResultFilterTest.cs
@@ -68,6 +68,42 @@ namespace Microsoft.AspNetCore.Mvc.Infrastructure
             Assert.Same(Result, context.Result);
         }
 
+        [Theory]
+        [InlineData(400)]
+        [InlineData(409)]
+        [InlineData(503)]
+        public void OnResultExecuting_Transforms4XXStatusCodeResult(int statusCode)
+        {
+            // Arrange
+            var actionResult = new StatusCodeResult(statusCode);
+            var context = GetContext(actionResult);
+            var filter = GetFilter();
+
+            // Act
+            filter.OnResultExecuting(context);
+
+            // Assert
+            Assert.Same(Result, context.Result);
+        }
+
+        [Theory]
+        [InlineData(201)]
+        [InlineData(302)]
+        [InlineData(399)]
+        public void OnResultExecuting_DoesNotTransformStatusCodesLessThan400(int statusCode)
+        {
+            // Arrange
+            var actionResult = new StatusCodeResult(statusCode);
+            var context = GetContext(actionResult);
+            var filter = GetFilter();
+
+            // Act
+            filter.OnResultExecuting(context);
+
+            // Assert
+            Assert.Same(actionResult, context.Result);
+        }
+
         private static ClientErrorResultFilter GetFilter()
         {
             var factory = Mock.Of<IClientErrorFactory>(