.NET Framework Version History

.NET Version	Introduced with IDE	Features Detail	CLR Version
4.6	Visual Studio 2015	.Introduced RyuJIT, a new JIT compiler for 64-bit systems .Introduced Open Source.Net Framework Packages .Support for Code page encodings .Improvements to event tracing	4.0
4.5.1	Visual Studio 2013	·  Includes performance and debugging improvements ·  Support for automatic binding redirection ·  Expanded support for Windows Store apps	4.0
4.5	Visual Studio 2012	·  Features Enhancements to CLR 4.0 ·  Async Support ·  Support for building Windows Store apps ·  Features Enhancement to WPF, WCF, WF, and ASP.NET	4.0
4.0	Visual Studio 2010	·  Introduced CLR 4.0 ·  Managed Extensibility Framework (MEF) ·  Dynamic Language Runtime (DLR) ·  Task Parallel Library	4.0
3.5	Visual Studio 2008	·  Built-In AJAX Support ·  LINQ ·  Dynamic Data ·  Multi-targeting Framework Support	2.0
3.0	Visual Studio 2005	·  Windows Presentation Foundation (WPF) ·  Windows Communications Foundation (WCF) ·  Windows Workflow Foundation (WF), and CardSpace	2.0
2.0	Visual Studio 2005	·  Introduced CLR 2.0 ·  Generics and generic collections ·  Partial classes ·  Nullable types ·  Anonymous methods ·  Introduced many new controls and features to ASP.NET	2.0
1.1	Visual Studio.NET 2003	·  Features Enhancement to ASP.NET and ADO.NET ·  Built-in support for mobile ASP.NET controls ·  Security Enhancement ·  Built-in support for ODBC and databases ·  Internet Protocol version 6 (IPv6) support	1.0
1.0	Visual Studio.NET	·  Introduced CLR 1.0 ·  Support for Object-oriented Web application development ·  Use of DLL class libraries	1.0