Visual Studio 2010 and .NET Framework 4 are today released by Microsoft.
The Microsoft .NET Framework 4 is comprehensive and consistent programming model for building applications that have visually stunning user experiences, seamless and secure communication, and the ability to model a range of business processes. It works side by side with older Framework versions.
See the list of new features and improvements made in .Net Framework 4 here.
Download Here [Standalone/Offline Installer of Microsoft .NET Framework 4]