can I use .NET Framework 4.0 with VS2008 ?

Question

hello , can I use .net framework 4.0 in VS2008 ? If yes how can I do that? My application uses 2.0 ,Or are there advantages to updating to the latest .NET 4.0 now? And also I came across some new features in framework 4.0 like :

Response.RiderectPermanent
Response.RiderectToRoute
Response.RiderectToRoutePermanent

Answer 1

You need VS2010.

Answer 2

No, you cannot. You can upgrade your VS2008 to VS2010 for free till April, 30th, if you have premium MSDN subsription.

Answer 3

Surely you need visual studio 2010 for .Net 4.0