diff --git a/src/CommonAssemblyInfo.cs b/src/CommonAssemblyInfo.cs
index 23f575974..de4e5d379 100644
--- a/src/CommonAssemblyInfo.cs
+++ b/src/CommonAssemblyInfo.cs
@@ -24,12 +24,17 @@
 //  BUILD_GENERATED_VERSION will be set in any CI build. Versions below are not used.
 // ===================================================================================
 
-#if (ASPNETMVC && (ASPNETWEBPAGES || ASPNETFACEBOOK)) || (ASPNETWEBPAGES && ASPNETFACEBOOK)
-#error Runtime projects cannot define more than one of ASPNETMVC, ASPNETWEBPAGES or ASPNETFACEBOOK
+#if (ASPNETMVC && (ASPNETWEBPAGES || ASPNETFACEBOOK || ASPNETHTTPFORMATTING)) || (ASPNETWEBPAGES && (ASPNETFACEBOOK || ASPNETHTTPFORMATTING)) || (ASPNETFACEBOOK && ASPNETHTTPFORMATTING)
+#error Runtime projects cannot define more than one of ASPNETMVC, ASPNETWEBPAGES, ASPNETFACEBOOK, or ASPNETHTTPFORMATTING
+#elif ASPNETHTTPFORMATTING
+#if !BUILD_GENERATED_VERSION
+[assembly: AssemblyVersion("6.0.0.0")] // ASPNETHTTPFORMATTING
+[assembly: AssemblyFileVersion("6.0.0.0")] // ASPNETHTTPFORMATTING
+#endif
 #elif ASPNETMVC
 #if !BUILD_GENERATED_VERSION
-[assembly: AssemblyVersion("5.2.9.0")] // ASPNETMVC
-[assembly: AssemblyFileVersion("5.2.9.0")] // ASPNETMVC
+[assembly: AssemblyVersion("5.3.0.0")] // ASPNETMVC
+[assembly: AssemblyFileVersion("5.3.0.0")] // ASPNETMVC
 #endif
 [assembly: AssemblyProduct("Microsoft ASP.NET MVC")]
 #elif ASPNETWEBPAGES
diff --git a/src/CommonAssemblyInfo.vb b/src/CommonAssemblyInfo.vb
index 591dc0d89..d5dac6315 100644
--- a/src/CommonAssemblyInfo.vb
+++ b/src/CommonAssemblyInfo.vb
@@ -20,6 +20,6 @@ Imports System.Runtime.InteropServices
 ' Version numbers are automatically generated based on regular expressions.
 ' ===========================================================================
 
-<Assembly: AssemblyVersion("5.2.9.0")>   'ASPNETMVC
-<Assembly: AssemblyFileVersion("5.2.9.0")>   'ASPNETMVC
+<Assembly: AssemblyVersion("5.3.0.0")>   'ASPNETMVC
+<Assembly: AssemblyFileVersion("5.3.0.0")>   'ASPNETMVC
 <Assembly: AssemblyProduct("Microsoft ASP.NET MVC")>
\ No newline at end of file
diff --git a/src/System.Net.Http.Formatting.ns1_3/System.Net.Http.Formatting.ns1_3.csproj b/src/System.Net.Http.Formatting.ns1_3/System.Net.Http.Formatting.ns1_3.csproj
index 7e388ca5b..cb723ee1d 100644
--- a/src/System.Net.Http.Formatting.ns1_3/System.Net.Http.Formatting.ns1_3.csproj
+++ b/src/System.Net.Http.Formatting.ns1_3/System.Net.Http.Formatting.ns1_3.csproj
@@ -7,7 +7,7 @@
     <OutputPath>$(OutputPath)ns1_3\</OutputPath>
     <DocumentationFile>$(OutputPath)$(AssemblyName).xml</DocumentationFile>
     <RunCodeAnalysis>false</RunCodeAnalysis>
-    <DefineConstants>$(DefineConstants);ASPNETMVC</DefineConstants>
+    <DefineConstants>$(DefineConstants);ASPNETHTTPFORMATTING</DefineConstants>
     <NoWarn>1591</NoWarn>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <Configurations>$(Configurations);CodeAnalysis</Configurations>
diff --git a/src/System.Net.Http.Formatting.ns2_0/System.Net.Http.Formatting.ns2_0.csproj b/src/System.Net.Http.Formatting.ns2_0/System.Net.Http.Formatting.ns2_0.csproj
index b44945028..b31b98d40 100644
--- a/src/System.Net.Http.Formatting.ns2_0/System.Net.Http.Formatting.ns2_0.csproj
+++ b/src/System.Net.Http.Formatting.ns2_0/System.Net.Http.Formatting.ns2_0.csproj
@@ -7,7 +7,7 @@
     <OutputPath>$(OutputPath)ns2_0\</OutputPath>
     <DocumentationFile>$(OutputPath)$(AssemblyName).xml</DocumentationFile>
     <RunCodeAnalysis>false</RunCodeAnalysis>
-    <DefineConstants>$(DefineConstants);ASPNETMVC</DefineConstants>
+    <DefineConstants>$(DefineConstants);ASPNETHTTPFORMATTING</DefineConstants>
     <NoWarn>1591</NoWarn>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <Configurations>$(Configurations);CodeAnalysis</Configurations>
diff --git a/src/System.Net.Http.Formatting/System.Net.Http.Formatting.csproj b/src/System.Net.Http.Formatting/System.Net.Http.Formatting.csproj
index d52549eec..bf2cf46b1 100644
--- a/src/System.Net.Http.Formatting/System.Net.Http.Formatting.csproj
+++ b/src/System.Net.Http.Formatting/System.Net.Http.Formatting.csproj
@@ -10,7 +10,7 @@
     <DocumentationFile>$(OutputPath)$(AssemblyName).xml</DocumentationFile>
     <RunCodeAnalysis>$(CodeAnalysis)</RunCodeAnalysis>
     <CodeAnalysisRuleSet>..\Strict.ruleset</CodeAnalysisRuleSet>
-    <DefineConstants>$(DefineConstants);ASPNETMVC</DefineConstants>
+    <DefineConstants>$(DefineConstants);ASPNETHTTPFORMATTING</DefineConstants>
     <TargetFrameworkProfile Condition="'$(TargetFrameworkVersion)' != 'v4.5'">Client</TargetFrameworkProfile>
     <NoWarn>1591</NoWarn>
   </PropertyGroup>
diff --git a/src/WebApiHelpPage/Areas/HelpPage/Views/Web.config b/src/WebApiHelpPage/Areas/HelpPage/Views/Web.config
index c9f6f08cb..5ce411ea8 100644
--- a/src/WebApiHelpPage/Areas/HelpPage/Views/Web.config
+++ b/src/WebApiHelpPage/Areas/HelpPage/Views/Web.config
@@ -9,7 +9,7 @@
   </configSections>
 
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.9.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.3.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
     <pages pageBaseType="System.Web.Mvc.WebViewPage">
       <namespaces>
         <add namespace="System.Web.Mvc" />
diff --git a/src/WebApiHelpPage/VB/Areas/HelpPage/Views/Web.config b/src/WebApiHelpPage/VB/Areas/HelpPage/Views/Web.config
index 8ff9486fe..b44b016c0 100644
--- a/src/WebApiHelpPage/VB/Areas/HelpPage/Views/Web.config
+++ b/src/WebApiHelpPage/VB/Areas/HelpPage/Views/Web.config
@@ -9,7 +9,7 @@
   </configSections>
 
   <system.web.webPages.razor>
-    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.9.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
+    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.3.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
     <pages pageBaseType="System.Web.Mvc.WebViewPage">
       <namespaces>
         <add namespace="System.Web.Mvc" />
diff --git a/test/Microsoft.Web.Mvc.Test/Test/VersionTest.cs b/test/Microsoft.Web.Mvc.Test/Test/VersionTest.cs
index 32e4bc1d7..5235e0fee 100644
--- a/test/Microsoft.Web.Mvc.Test/Test/VersionTest.cs
+++ b/test/Microsoft.Web.Mvc.Test/Test/VersionTest.cs
@@ -13,7 +13,7 @@ public class VersionTest
         public void VerifyMVCVersionChangesAreIntentional()
         {
             Version mvcVersion = VersionTestHelper.GetVersionFromAssembly("System.Web.Mvc", typeof(Controller));
-            Assert.Equal(new Version(5, 2, 9, 0), mvcVersion);
+            Assert.Equal(new Version(5, 3, 0, 0), mvcVersion);
         }
     }
 }
diff --git a/test/System.Web.WebPages.Test/App.config b/test/System.Web.WebPages.Test/App.config
index e0565507e..df97ed804 100644
--- a/test/System.Web.WebPages.Test/App.config
+++ b/test/System.Web.WebPages.Test/App.config
@@ -11,7 +11,7 @@
       <dependentAssembly>
         <!-- Need this because the BinarySerializer uses the TypeForwardedFrom attribute and deserializes to the original assembly (MVC 2.0) for the HttpAntiForgeryException test -->
         <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
-        <bindingRedirect oldVersion="1.0.0.0-5.2.9.0" newVersion="5.2.9.0" />
+        <bindingRedirect oldVersion="1.0.0.0-5.3.0.0" newVersion="5.3.0.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>