.Net 4.0
.Net 4.0 is latest technology and it provide Extra features then previous version. There are added new features in this section of .net as given
o Application Compatibility and Development
o Managed Extensibility Framework
o Networking
o Web
o Client
o Data
o Windows communication foundation
o Windows workflow foundation etc
Main Features in .Net
o Routing concept in .Net
o Page.MetaKeyword and Page.Description Properties
o More data services in WCF
o Output Caching Extensibility
o Session State Compression
o Improvements on Microsoft Ajax Library
o Adding new Syntax for Html Encode
o Response.RedirectPermanent method
o Increase URL character length
o Auto start ASP.Net application
o Web Config file refactoring
o Predictable ClientId