I just installed Visual Studio 2013. Moreover, I started to build a MVC 5 project. That is great, it is integrated with Bootstrap and css less by default. The web application is fully responsive, works well in Tablet and Mobile too. In addition, MVC5 can support "~". such as src="~/Images/a.png" in img tag. We don't need to use Url.Content(~/Images/a.png"). It makes coding faster. I love these improvement. There is only one down side, Visual Studio 2013 ate much more CPU and Memory. It runs very slow in 8GB RAM and 2nd Generation Core i7 2Ghz laptop.