diff --git a/Directory.Build.props b/Directory.Build.props
index 41375910ab..229bc63ba1 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,4 +1,8 @@
 <Project>
+  <Import
+    Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), AspNetCoreSettings.props))\AspNetCoreSettings.props"
+    Condition=" '$(CI)' != 'true' AND '$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), AspNetCoreSettings.props))' != '' " />
+
   <Import Project="version.props" />
   <Import Project="build\dependencies.props" />
 
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 45463cc71e..95f4613014 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview1-15549
-commithash:f570e08585fec510dd60cd4bfe8795388b757a95
+version:2.1.0-preview1-15567
+commithash:903e3104807b1bb8cddd28bdef205b1e2dc021d1
diff --git a/samples/IdentityOIDCWebApplicationSample/IdentityOIDCWebApplicationSample.csproj b/samples/IdentityOIDCWebApplicationSample/IdentityOIDCWebApplicationSample.csproj
index 3a7b4954df..fb5e79c428 100644
--- a/samples/IdentityOIDCWebApplicationSample/IdentityOIDCWebApplicationSample.csproj
+++ b/samples/IdentityOIDCWebApplicationSample/IdentityOIDCWebApplicationSample.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
-    <MvcRazorCompileOnPublish>true</MvcRazorCompileOnPublish>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <UserSecretsId>aspnet-IdentityWebApplicationSample-71B323EE-A696-4709-9EA5-C93EFCD9E6FB</UserSecretsId>
   </PropertyGroup>
 
diff --git a/samples/IdentitySample.Mvc/IdentitySample.Mvc.csproj b/samples/IdentitySample.Mvc/IdentitySample.Mvc.csproj
index 279a4fd28b..f7a0e277af 100644
--- a/samples/IdentitySample.Mvc/IdentitySample.Mvc.csproj
+++ b/samples/IdentitySample.Mvc/IdentitySample.Mvc.csproj
@@ -2,8 +2,7 @@
 
   <PropertyGroup>
     <Description>Identity sample MVC application on ASP.NET Core</Description>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1;net461</TargetFrameworks>
     <UserSecretsId>aspnetcore-b3d20cbe-418e-4bf2-a0f4-57f91d067e07</UserSecretsId>
   </PropertyGroup>
 
diff --git a/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/DeveloperCertificateMiddleware.cs b/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/DeveloperCertificateMiddleware.cs
index ac195bb9b2..5ef6da714a 100644
--- a/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/DeveloperCertificateMiddleware.cs
+++ b/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/DeveloperCertificateMiddleware.cs
@@ -79,7 +79,7 @@ namespace Microsoft.AspNetCore.Diagnostics.Identity.Service
             await _next(context);
             void CreateDevelopmentCertificate()
             {
-#if NETCOREAPP2_0
+#if NETCOREAPP2_0 || NETCOREAPP2_1
                 using (var rsa = RSA.Create(2048))
                 {
                     var signingRequest = new CertificateRequest(
diff --git a/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/Microsoft.AspNetCore.Diagnostics.Identity.Service.csproj b/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/Microsoft.AspNetCore.Diagnostics.Identity.Service.csproj
index fc93272109..a2f830d2fc 100644
--- a/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/Microsoft.AspNetCore.Diagnostics.Identity.Service.csproj
+++ b/src/Microsoft.AspNetCore.Diagnostics.Identity.Service/Microsoft.AspNetCore.Diagnostics.Identity.Service.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>ASP.NET Core Identity Service Diagnostics Middleware.</Description>
-    <TargetFrameworks>netcoreapp2.0;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1;netcoreapp2.0;netstandard2.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore</PackageTags>
diff --git a/test/Directory.Build.props b/test/Directory.Build.props
index b9ebade8ca..215a3aada7 100644
--- a/test/Directory.Build.props
+++ b/test/Directory.Build.props
@@ -1,6 +1,13 @@
 <Project>
   <Import Project="..\Directory.Build.props" />
 
+  <PropertyGroup>
+    <DeveloperBuildTestTfms>netcoreapp2.1</DeveloperBuildTestTfms>
+    <StandardTestTfms>$(DeveloperBuildTestTfms)</StandardTestTfms>
+    <StandardTestTfms Condition=" '$(DeveloperBuild)' != 'true' ">$(StandardTestTfms);netcoreapp2.0</StandardTestTfms>
+    <StandardTestTfms Condition=" '$(DeveloperBuild)' != 'true' AND '$(OS)' == 'Windows_NT' ">$(StandardTestTfms);net461</StandardTestTfms>
+  </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="Internal.AspNetCore.Sdk" PrivateAssets="All" Version="$(InternalAspNetCoreSdkPackageVersion)" />
     <PackageReference Include="Microsoft.AspNetCore.Testing" Version="$(MicrosoftAspNetCoreTestingPackageVersion)" />
diff --git a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test.csproj b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test.csproj
index b56433213d..a73a42dd5f 100644
--- a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.InMemory.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test.csproj b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test.csproj
index e3aefd7860..850afff172 100644
--- a/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.InMemory.Test/Microsoft.AspNetCore.Identity.InMemory.Test.csproj b/test/Microsoft.AspNetCore.Identity.InMemory.Test/Microsoft.AspNetCore.Identity.InMemory.Test.csproj
index e65c7f5610..4524db7ce2 100644
--- a/test/Microsoft.AspNetCore.Identity.InMemory.Test/Microsoft.AspNetCore.Identity.InMemory.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.InMemory.Test/Microsoft.AspNetCore.Identity.InMemory.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test.csproj
index 98dc2ff730..e10ac37dd9 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test/Microsoft.AspNetCore.Identity.Service.Abstractions.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.Core.Test/Microsoft.AspNetCore.Identity.Service.Core.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.Core.Test/Microsoft.AspNetCore.Identity.Service.Core.Test.csproj
index 1973f87329..5d0581a952 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.Core.Test/Microsoft.AspNetCore.Identity.Service.Core.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.Core.Test/Microsoft.AspNetCore.Identity.Service.Core.Test.csproj
@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test.csproj
index c2452d8b13..a58cd334b3 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.InMemory.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test.csproj
index 8ebee82452..cdbdc32315 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test/Microsoft.AspNetCore.Identity.Service.EntityFrameworkCore.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.InMemory.Test/Microsoft.AspNetCore.Identity.Service.InMemory.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.InMemory.Test/Microsoft.AspNetCore.Identity.Service.InMemory.Test.csproj
index 01ec182335..9ff248c8c5 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.InMemory.Test/Microsoft.AspNetCore.Identity.Service.InMemory.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.InMemory.Test/Microsoft.AspNetCore.Identity.Service.InMemory.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Service.Test/Microsoft.AspNetCore.Identity.Service.Test.csproj b/test/Microsoft.AspNetCore.Identity.Service.Test/Microsoft.AspNetCore.Identity.Service.Test.csproj
index 3c50e6400d..726e9edf65 100644
--- a/test/Microsoft.AspNetCore.Identity.Service.Test/Microsoft.AspNetCore.Identity.Service.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Service.Test/Microsoft.AspNetCore.Identity.Service.Test.csproj
@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Identity.Test/Microsoft.AspNetCore.Identity.Test.csproj b/test/Microsoft.AspNetCore.Identity.Test/Microsoft.AspNetCore.Identity.Test.csproj
index 9f9aab1013..ad93881f65 100644
--- a/test/Microsoft.AspNetCore.Identity.Test/Microsoft.AspNetCore.Identity.Test.csproj
+++ b/test/Microsoft.AspNetCore.Identity.Test/Microsoft.AspNetCore.Identity.Test.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspnetCore.Identity.Service.FunctionalTests/Microsoft.AspnetCore.Identity.Service.FunctionalTests.csproj b/test/Microsoft.AspnetCore.Identity.Service.FunctionalTests/Microsoft.AspnetCore.Identity.Service.FunctionalTests.csproj
index 25ecdd98a2..669a612446 100644
--- a/test/Microsoft.AspnetCore.Identity.Service.FunctionalTests/Microsoft.AspnetCore.Identity.Service.FunctionalTests.csproj
+++ b/test/Microsoft.AspnetCore.Identity.Service.FunctionalTests/Microsoft.AspnetCore.Identity.Service.FunctionalTests.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestTfms)</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/WebSites/Directory.Build.props b/test/WebSites/Directory.Build.props
index 1dd7293ccd..8db517176e 100644
--- a/test/WebSites/Directory.Build.props
+++ b/test/WebSites/Directory.Build.props
@@ -1,4 +1,11 @@
 <Project>
   <!-- Skip the parent directory so test websites do not get the test package references. -->
   <Import Project="..\..\Directory.Build.props" />
+
+  <PropertyGroup>
+    <DeveloperBuildTestWebsiteTfms>netcoreapp2.1</DeveloperBuildTestWebsiteTfms>
+    <StandardTestWebsiteTfms>$(DeveloperBuildTestWebsiteTfms)</StandardTestWebsiteTfms>
+    <StandardTestWebsiteTfms Condition=" '$(DeveloperBuild)' != 'true' ">$(StandardTestWebsiteTfms);netcoreapp2.0</StandardTestWebsiteTfms>
+    <StandardTestWebsiteTfms Condition=" '$(DeveloperBuild)' != 'true' AND '$(OS)' == 'Windows_NT' ">$(StandardTestWebsiteTfms);net461</StandardTestWebsiteTfms>
+  </PropertyGroup>
 </Project>
diff --git a/test/WebSites/Identity.OpenIdConnect.WebSite/Identity.OpenIdConnect.WebSite.csproj b/test/WebSites/Identity.OpenIdConnect.WebSite/Identity.OpenIdConnect.WebSite.csproj
index 8443970249..2b644f9487 100644
--- a/test/WebSites/Identity.OpenIdConnect.WebSite/Identity.OpenIdConnect.WebSite.csproj
+++ b/test/WebSites/Identity.OpenIdConnect.WebSite/Identity.OpenIdConnect.WebSite.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.0;net461</TargetFrameworks>
-    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>$(StandardTestWebsiteTfms)</TargetFrameworks>
     <UserSecretsId>aspnet-Identity.OpenIdConnect.WebSite-BE885A77-1D43-42D1-AAF2-050B19C01163</UserSecretsId>
   </PropertyGroup>