MVC 2

· ModelMetadata and ModelMetadataProvider Classes

· Model Validator Providers

· Client-Side Validation

· Client-Side Validation

MVC 3

· New Intranet Project Template

· Extensible Scaffolding with MvcScaffold integration

· HTML 5 Project Templates

· Extensible "New Project" Dialog Box

MVC 4

· Add Controller to other project folder

· Task Support for Asynchronous Controllers

· Bundling and Minification

· Enabling Logins from Facebook and Other Sites Using OAuth and OpenID

· App_Start folder and separate classes