diff --git a/build/dependencies.props b/build/dependencies.props
index 348313510a..82fc963e22 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,42 +3,42 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
-    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15651</InternalAspNetCoreSdkPackageVersion>
-    <InternalAspNetCoreSiteExtensionSdkPackageVersion>2.1.0-preview1-15651</InternalAspNetCoreSiteExtensionSdkPackageVersion>
+    <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-15675</InternalAspNetCoreSdkPackageVersion>
+    <InternalAspNetCoreSiteExtensionSdkPackageVersion>2.1.0-preview1-15671</InternalAspNetCoreSiteExtensionSdkPackageVersion>
     <MicrosoftApplicationInsightsAspNetCorePackageVersion>2.1.1</MicrosoftApplicationInsightsAspNetCorePackageVersion>
-    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
+    <MicrosoftAspNetCoreAspNetCoreModulePackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreAspNetCoreModulePackageVersion>
     <MicrosoftAspNetCoreAzureAppServicesHostingStartupVersion>2.1.0-preview1-27855</MicrosoftAspNetCoreAzureAppServicesHostingStartupVersion>
     <MicrosoftAspNetCoreAzureKeyVaultHostingStartupVersion>2.1.0-preview1-27855</MicrosoftAspNetCoreAzureKeyVaultHostingStartupVersion>
-    <MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreIdentityServiceAzureKeyVaultPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreIdentityServiceAzureKeyVaultPackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreMvcPackageVersion>
-    <MicrosoftAspNetCoreRazorRuntimePackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreRazorRuntimePackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview1-27965</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview1-27965</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreDataProtectionAzureKeyVaultPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreIdentityServiceAzureKeyVaultPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreIdentityServiceAzureKeyVaultPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreRazorRuntimePackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreRazorRuntimePackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>0.5.0-preview1-28103</MicrosoftAspNetCoreServerIntegrationTestingPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview1-28103</MicrosoftAspNetCoreTestHostPackageVersion>
     <MicrosoftAzureManagementFluentPackageVersion>1.1.3</MicrosoftAzureManagementFluentPackageVersion>
-    <MicrosoftAzureServicesAppAuthenticationPackageVersion>1.0.0-preview</MicrosoftAzureServicesAppAuthenticationPackageVersion>
-    <MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>
-    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
-    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
-    <MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>
-    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsLoggingConfigurationPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsLoggingTestingPackageVersion>
-    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-27965</MicrosoftExtensionsProcessSourcesPackageVersion>
+    <MicrosoftAzureServicesAppAuthenticationPackageVersion>1.1.0-preview</MicrosoftAzureServicesAppAuthenticationPackageVersion>
+    <MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsConfigurationAzureKeyVaultPackageVersion>
+    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
+    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
+    <MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsLoggingAzureAppServicesPackageVersion>
+    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsLoggingConfigurationPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <MicrosoftExtensionsProcessSourcesPackageVersion>2.1.0-preview1-28103</MicrosoftExtensionsProcessSourcesPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26016-05</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26115-03</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.3.0</MicrosoftNETTestSdkPackageVersion>
     <MicrosoftWebXdtPackageVersion>1.4.0</MicrosoftWebXdtPackageVersion>
     <MoqPackageVersion>4.7.49</MoqPackageVersion>
     <NewtonsoftJsonPackageVersion>10.0.1</NewtonsoftJsonPackageVersion>
-    <SystemReflectionMetadataPackageVersion>1.6.0-preview1-25914-04</SystemReflectionMetadataPackageVersion>
+    <SystemReflectionMetadataPackageVersion>1.6.0-preview1-26112-01</SystemReflectionMetadataPackageVersion>
     <WindowsAzureStoragePackageVersion>8.1.4</WindowsAzureStoragePackageVersion>
     <XunitPackageVersion>2.3.1</XunitPackageVersion>
     <XunitRunnerVisualStudioPackageVersion>2.3.1</XunitRunnerVisualStudioPackageVersion>
diff --git a/build/repo.targets b/build/repo.targets
index 1f794b4f63..7dfd281b16 100644
--- a/build/repo.targets
+++ b/build/repo.targets
@@ -47,6 +47,10 @@
         Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)shared\Microsoft.NETCore.App\'))"
         Exclude="$(SiteExtensionWorkingDirectory)shared\Microsoft.NETCore.App\$(MicrosoftNETCoreApp21PackageVersion)" />
 
+      <_CleanupFiles
+        Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.All\'))"
+        Exclude="$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.All\$(PackageVersion)" />
+
       <_CleanupFiles
         Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)host\fxr'))"
         Exclude="$(SiteExtensionWorkingDirectory)host\fxr\$(MicrosoftNETCoreApp21PackageVersion)" />
@@ -59,7 +63,8 @@
     <Message Text="Removing %(_CleanupFiles.Identity)" Importance="High" />
     <RemoveDir Directories="@(_CleanupFiles)" />
 
-    <Copy SourceFiles="$(ArtifactDependencyLocation)\%(BundledTemplate.Identity).%(Version).nupkg" DestinationFolder="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\Templates" />
+    <!-- Workaround for nuget filtering out .nupkg files by default -->
+    <Copy SourceFiles="$(ArtifactDependencyLocation)\%(BundledTemplate.Identity).%(Version).nupkg" DestinationFiles="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\Templates\%(BundledTemplate.Identity).%(Version).nupkg_" />
     <Copy SourceFiles="$(ArtifactDependencyLocation)\nuGetPackagesArchive-$(PackageVersion).lzma" DestinationFiles="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\nuGetPackagesArchive.lzma" />
 
     <UnzipArchive File="$(ArtifactDependencyLocation)\aspnetcore-runtime-internal-$(PackageVersion)-win-x86.zip" Destination="$(SiteExtensionWorkingDirectory)" Overwrite="true" />
diff --git a/extensions/Microsoft.AspNetCore.AzureAppServices.TestBundle/install.cmd b/extensions/Microsoft.AspNetCore.AzureAppServices.TestBundle/install.cmd
index 7be48539a4..494a61f9ee 100644
--- a/extensions/Microsoft.AspNetCore.AzureAppServices.TestBundle/install.cmd
+++ b/extensions/Microsoft.AspNetCore.AzureAppServices.TestBundle/install.cmd
@@ -2,6 +2,8 @@ SET DOTNET=D:\Program Files (x86)\dotnet
 SET DOTNETCACHE=D:\DotNetCache
 SET RUNTIMES=%DOTNET%\shared\Microsoft.NETCore.App
 
+for /R %%x in (*.nupkg_) do ren "%%x" "*.nupkg"
+
 robocopy "%DOTNET%" "." /E /XC /XN /XO /NFL /NDL ^
     /XD "%DOTNET%\sdk" ^
     /XD "%RUNTIMES%\1.0.3" ^
diff --git a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/install.cmd b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/install.cmd
index 02475c10cb..f2dfec66bc 100644
--- a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/install.cmd
+++ b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/install.cmd
@@ -1,3 +1,5 @@
 SET DOTNET=D:\Program Files (x86)\dotnet
 
-dotnet msbuild /version
\ No newline at end of file
+for /R %%x in (*.nupkg_) do ren "%%x" "*.nupkg"
+
+dotnet msbuild /version
diff --git a/korebuild-lock.txt b/korebuild-lock.txt
index 2146d006d7..a1f0faa2a3 100644
--- a/korebuild-lock.txt
+++ b/korebuild-lock.txt
@@ -1,2 +1,2 @@
-version:2.1.0-preview1-15661
-commithash:c9349d4c8a495d3085d9b879214d80f2f45e2193
+version:2.1.0-preview1-15675
+commithash:2ae69024f0d302f71128d9d0f1aeb99f199be47a