Microsoft has released an update to Visual Studio 2012 and Visual Studio Express 2012 for Web

This release updates Visual Studio 2012 with a prerelease update to ASP.NET. Features and updates:

Enhanced Website publishing
New ASP.NET MVC Templates for Facebook applications and Single Page Application using knockout.js and ASP.NET Web API
ASP.NET Web API enhanced with new features:
ASP.NET Web API OData gives you the flexibility you need to build OData endpoints.
ASP.NET Web API Tracing integrates tracing data from your web APIs with .NET Tracing.
ASP.NET Web API Help Page automatically generates documentation for web APIs including the HTTP endpoints, the supported HTTP methods, parameters and example request and response message payloads.
ASP.NET SignalR is an async signaling library for .NET to help build real-time, multi-user interactive web applications.
ASP.NET Friendly URLs makes it very easy for webforms developers to generate cleaner looking URLs(without .aspx extension).

For more information about using this release, please see the ASP.NET Fall 2012 Update Release Notes.

  Microsoft ASP.NET and Web Tools 2012.2 RC