diff --git a/build/dependencies.props b/build/dependencies.props
index c98a0020f4..d366c2b72a 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -4,65 +4,65 @@
   </PropertyGroup>
   <PropertyGroup Label="Package Versions">
     <InternalAspNetCoreSdkPackageVersion>2.1.0-preview1-1010</InternalAspNetCoreSdkPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationFacebookPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthenticationFacebookPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationGooglePackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthenticationGooglePackageVersion>
-    <MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>
-    <MicrosoftAspNetCoreAuthenticationTwitterPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthenticationTwitterPackageVersion>
-    <MicrosoftAspNetCoreAuthorizationPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreAuthorizationPackageVersion>
-    <MicrosoftAspNetCoreCryptographyKeyDerivationPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreCryptographyKeyDerivationPackageVersion>
-    <MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>
-    <MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>
-    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreDiagnosticsPackageVersion>
-    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHostingPackageVersion>
-    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
-    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreHttpPackageVersion>
-    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcPackageVersion>
-    <MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>
-    <MicrosoftAspNetCoreMvcTestingPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreMvcTestingPackageVersion>
-    <MicrosoftAspNetCoreRazorDesignPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreRazorDesignPackageVersion>
-    <MicrosoftAspNetCoreRewritePackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreRewritePackageVersion>
-    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
-    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreServerKestrelPackageVersion>
-    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreStaticFilesPackageVersion>
-    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreTestHostPackageVersion>
-    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-28193</MicrosoftAspNetCoreTestingPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthenticationCookiesPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationFacebookPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthenticationFacebookPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationGooglePackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthenticationGooglePackageVersion>
+    <MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthenticationOpenIdConnectPackageVersion>
+    <MicrosoftAspNetCoreAuthenticationTwitterPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthenticationTwitterPackageVersion>
+    <MicrosoftAspNetCoreAuthorizationPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreAuthorizationPackageVersion>
+    <MicrosoftAspNetCoreCryptographyKeyDerivationPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreCryptographyKeyDerivationPackageVersion>
+    <MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreDataProtectionExtensionsPackageVersion>
+    <MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreDiagnosticsEntityFrameworkCorePackageVersion>
+    <MicrosoftAspNetCoreDiagnosticsPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreDiagnosticsPackageVersion>
+    <MicrosoftAspNetCoreHostingAbstractionsPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreHostingAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHostingPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreHostingPackageVersion>
+    <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
+    <MicrosoftAspNetCoreHttpPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreHttpPackageVersion>
+    <MicrosoftAspNetCoreMvcPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreMvcPackageVersion>
+    <MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreMvcRazorViewCompilationPackageVersion>
+    <MicrosoftAspNetCoreMvcTestingPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreMvcTestingPackageVersion>
+    <MicrosoftAspNetCoreRazorDesignPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreRazorDesignPackageVersion>
+    <MicrosoftAspNetCoreRewritePackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreRewritePackageVersion>
+    <MicrosoftAspNetCoreServerIISIntegrationPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreServerIISIntegrationPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreServerKestrelHttpsPackageVersion>
+    <MicrosoftAspNetCoreServerKestrelPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreServerKestrelPackageVersion>
+    <MicrosoftAspNetCoreStaticFilesPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreStaticFilesPackageVersion>
+    <MicrosoftAspNetCoreTestHostPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreTestHostPackageVersion>
+    <MicrosoftAspNetCoreTestingPackageVersion>2.1.0-preview1-28274</MicrosoftAspNetCoreTestingPackageVersion>
     <MicrosoftAspNetIdentityEntityFrameworkPackageVersion>2.2.1</MicrosoftAspNetIdentityEntityFrameworkPackageVersion>
     <MicrosoftAzureKeyVaultPackageVersion>2.3.2</MicrosoftAzureKeyVaultPackageVersion>
-    <MicrosoftEntityFrameworkCoreInMemoryPackageVersion>2.1.0-preview1-28193</MicrosoftEntityFrameworkCoreInMemoryPackageVersion>
-    <MicrosoftEntityFrameworkCoreRelationalPackageVersion>2.1.0-preview1-28193</MicrosoftEntityFrameworkCoreRelationalPackageVersion>
-    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>2.1.0-preview1-28193</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
-    <MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>2.1.0-preview1-28193</MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>
-    <MicrosoftEntityFrameworkCoreToolsPackageVersion>2.1.0-preview1-28193</MicrosoftEntityFrameworkCoreToolsPackageVersion>
-    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationBinderPackageVersion>
-    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
-    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
-    <MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>
-    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationJsonPackageVersion>
-    <MicrosoftExtensionsConfigurationPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationPackageVersion>
-    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
-    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
-    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingConfigurationPackageVersion>
-    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingConsolePackageVersion>
-    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingDebugPackageVersion>
-    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingPackageVersion>
-    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsLoggingTestingPackageVersion>
-    <MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>
-    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsOptionsPackageVersion>
-    <MicrosoftExtensionsRazorViewsSourcesPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsRazorViewsSourcesPackageVersion>
-    <MicrosoftExtensionsSecurityHelperSourcesPackageVersion>2.1.0-preview1-28193</MicrosoftExtensionsSecurityHelperSourcesPackageVersion>
+    <MicrosoftEntityFrameworkCoreInMemoryPackageVersion>2.1.0-preview1-28274</MicrosoftEntityFrameworkCoreInMemoryPackageVersion>
+    <MicrosoftEntityFrameworkCoreRelationalPackageVersion>2.1.0-preview1-28274</MicrosoftEntityFrameworkCoreRelationalPackageVersion>
+    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>2.1.0-preview1-28274</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
+    <MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>2.1.0-preview1-28274</MicrosoftEntityFrameworkCoreToolsDotNetPackageVersion>
+    <MicrosoftEntityFrameworkCoreToolsPackageVersion>2.1.0-preview1-28274</MicrosoftEntityFrameworkCoreToolsPackageVersion>
+    <MicrosoftExtensionsConfigurationBinderPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationBinderPackageVersion>
+    <MicrosoftExtensionsConfigurationCommandLinePackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationCommandLinePackageVersion>
+    <MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationEnvironmentVariablesPackageVersion>
+    <MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationFileExtensionsPackageVersion>
+    <MicrosoftExtensionsConfigurationJsonPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationJsonPackageVersion>
+    <MicrosoftExtensionsConfigurationPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationPackageVersion>
+    <MicrosoftExtensionsConfigurationUserSecretsPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsConfigurationUserSecretsPackageVersion>
+    <MicrosoftExtensionsDependencyInjectionPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsDependencyInjectionPackageVersion>
+    <MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsFileProvidersEmbeddedPackageVersion>
+    <MicrosoftExtensionsLoggingConfigurationPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsLoggingConfigurationPackageVersion>
+    <MicrosoftExtensionsLoggingConsolePackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsLoggingConsolePackageVersion>
+    <MicrosoftExtensionsLoggingDebugPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsLoggingDebugPackageVersion>
+    <MicrosoftExtensionsLoggingPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsLoggingPackageVersion>
+    <MicrosoftExtensionsLoggingTestingPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsLoggingTestingPackageVersion>
+    <MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsOptionsConfigurationExtensionsPackageVersion>
+    <MicrosoftExtensionsOptionsPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsOptionsPackageVersion>
+    <MicrosoftExtensionsRazorViewsSourcesPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsRazorViewsSourcesPackageVersion>
+    <MicrosoftExtensionsSecurityHelperSourcesPackageVersion>2.1.0-preview1-28274</MicrosoftExtensionsSecurityHelperSourcesPackageVersion>
     <MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>3.14.2</MicrosoftIdentityModelClientsActiveDirectoryPackageVersion>
     <MicrosoftIdentityModelProtocolsOpenIdConnectPackageVersion>5.2.0-preview2-41113220915</MicrosoftIdentityModelProtocolsOpenIdConnectPackageVersion>
     <MicrosoftNETCoreApp20PackageVersion>2.0.0</MicrosoftNETCoreApp20PackageVersion>
-    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26122-01</MicrosoftNETCoreApp21PackageVersion>
+    <MicrosoftNETCoreApp21PackageVersion>2.1.0-preview1-26208-06</MicrosoftNETCoreApp21PackageVersion>
     <MicrosoftNETTestSdkPackageVersion>15.3.0</MicrosoftNETTestSdkPackageVersion>
     <MicrosoftOwinSecurityCookiesPackageVersion>3.0.1</MicrosoftOwinSecurityCookiesPackageVersion>
-    <MicrosoftOwinSecurityInteropPackageVersion>2.1.0-preview1-28193</MicrosoftOwinSecurityInteropPackageVersion>
+    <MicrosoftOwinSecurityInteropPackageVersion>2.1.0-preview1-28274</MicrosoftOwinSecurityInteropPackageVersion>
     <MoqPackageVersion>4.7.49</MoqPackageVersion>
-    <SystemComponentModelAnnotationsPackageVersion>4.5.0-preview1-26119-06</SystemComponentModelAnnotationsPackageVersion>
+    <SystemComponentModelAnnotationsPackageVersion>4.5.0-preview1-26208-08</SystemComponentModelAnnotationsPackageVersion>
     <XunitAnalyzersPackageVersion>0.8.0</XunitAnalyzersPackageVersion>
     <XunitPackageVersion>2.3.1</XunitPackageVersion>
     <XunitRunnerVisualStudioPackageVersion>2.3.1</XunitRunnerVisualStudioPackageVersion>
diff --git a/src/AspNetCoreCompat/Microsoft.AspNet.Identity.AspNetCoreCompat.csproj b/src/AspNetCoreCompat/Microsoft.AspNet.Identity.AspNetCoreCompat.csproj
index 99d5703100..4910d07d2a 100644
--- a/src/AspNetCoreCompat/Microsoft.AspNet.Identity.AspNetCoreCompat.csproj
+++ b/src/AspNetCoreCompat/Microsoft.AspNet.Identity.AspNetCoreCompat.csproj
@@ -2,8 +2,10 @@
 
   <PropertyGroup>
     <Description>A compatibility layer for sharing identity databases between Microsoft.AspNet.Identity.EntityFramework and Microsoft.AspNetCore.Identity.EntityFrameworkCore.</Description>
-    <VersionPrefix Condition="'$(ExperimentalProjectVersionPrefix)' != ''">$(ExperimentalProjectVersionPrefix)</VersionPrefix>
-    <VerifyVersion Condition="'$(ExperimentalProjectVersionPrefix)' != ''">false</VerifyVersion>
+    <VersionPrefix Condition="'$(ExperimentalVersionPrefix)' != ''">$(ExperimentalVersionPrefix)</VersionPrefix>
+    <VersionSuffix Condition="'$(ExperimentalVersionSuffix)' != ''">$(ExperimentalVersionSuffix)</VersionSuffix>
+    <VerifyVersion Condition="'$(ExperimentalVersionPrefix)' != ''">false</VerifyVersion>
+    <PackageVersion Condition="'$(ExperimentalPackageVersion)' != ''">$(ExperimentalPackageVersion)</PackageVersion>
     <TargetFramework>net461</TargetFramework>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
diff --git a/version.props b/version.props
index d1791a6a89..d01d5acfda 100644
--- a/version.props
+++ b/version.props
@@ -1,7 +1,9 @@
 <Project>
   <PropertyGroup>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <ExperimentalProjectVersionPrefix>0.4.0</ExperimentalProjectVersionPrefix>
+    <ExperimentalVersionPrefix>0.4.0</ExperimentalVersionPrefix>
+    <ExperimentalVersionSuffix>alpha1</ExperimentalVersionSuffix>
+    <ExperimentalPackageVersion Condition="'$(IsFinalBuild)' == 'true'">$(ExperimentalVersionPrefix)-$(ExperimentalVersionSuffix)-final</ExperimentalPackageVersion>
     <VersionSuffix>preview1</VersionSuffix>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' == 'rtm' ">$(VersionPrefix)</PackageVersion>
     <PackageVersion Condition="'$(IsFinalBuild)' == 'true' AND '$(VersionSuffix)' != 'rtm' ">$(VersionPrefix)-$(VersionSuffix)-final</PackageVersion>