mvc 5 vs mvc 4 ? ? differences

Question

Hi

 

I need some expertise from your end many who worked on MVC4  and now working on MVC 5 may know it

 

I just need the important differences i.e standout one's where we can call them a difference ,.

 

The thing is requirement gathering is going on , so i have to stand on which ever version it may be but i need to show why i am in favor of my decession .

 

I hope you got my intention and provide me your views  .

 

Regards

Sunil