MVC Interview Question - Difference between version of MVC 2, 3 , 4, 5 and 6.

MVC 2

• Client-Side Validation
• Templated Helpers
• Areas
• Asynchronous Controllers
• Html.ValidationSummary Helper Method
• DefaultValueAttribute in Action-Method Parameters
• Binding Binary Data with Model Binders
• DataAnnotations Attributes
• Model-Validator Providers
• New RequireHttpsAttribute Action Filter
• Templated Helpers
• Display Model-Level Errors

MVC 3

• Razor
• Readymade project templates
• HTML 5 enabled templates
• Support for Multiple View Engines
• JavaScript and Ajax
• Model Validation Improvements

MVC 4

• ASP.NET Web API
• Refreshed and modernized default project templates
• New mobile project template
• Many new features to support mobile apps
• Enhanced support for asynchronous methods

MVC 5

• One ASP.NET
• Attribute based routing
• Asp.Net Identity
• Bootstrap in the MVC template
• Authentication Filters
• Filter overrides

MVC 6

• ASP.NET MVC and Web API has been merged in to one.
• Dependency injection is inbuilt and part of MVC.
• Side by side - deploy the runtime and framework with your application
• Everything packaged with NuGet, Including the .NET runtime itself.
• New JSON based project structure.
• No need to recompile for every change. Just hit save and refresh the browser.
• Compilation done with the new Roslyn real-time compiler.
• vNext is Open Source via the .NET Foundation and is taking public contributions.
• vNext (and Rosyln) also runs on Mono, on both Mac and Linux today.