ASP.NET different Versions And Their features...

.NET Framework version	CLR version	Features	Included in Visual Studio version	✓ Included in + Can be installed on Windows	✓ Included in + Can be installed on Windows Server	To determine installed .NET version
4.5.2	4	New APIs for transactional systems and ASP.NET System DPI resizing in Windows Forms controls Profiling improvements ETW and stress logging improvements	-	+ 8.1 + 8 + 7 + Vista	+ 2012 R2 + 2012 + 2008 R2 SP1 + 2008 SP2	Use Release DWORD: 379893
4.5.1	4	Support for Windows Phone Store apps .NET Native Automatic binding redirection Performance and debugging improvement	2013	✓ 8.1 + 8 + 7 + Vista	✓ 2012 R2 + 2012 + 2008 R2 SP1 + 2008 SP2	Use Release DWORD: 378675 (Windows 8.1) 378758 (all other)
4.5	4	Support for Windows Store apps WPF, WCF, WF, ASP.NET updates	2012	✓ 8 + 7 + Vista	✓ 2012 + 2008 R2 SP1 + 2008 SP2	Use Release DWORD: 378389
4	4	Expanded base class libraries Cross-platform development with Portable Class Library MEF, DLR, code contracts	2010	+ 7 + Vista	+ 2008 R2 SP1 + 2008 SP2 + 2003
3.5	2.0	AJAX-enabled websites LINQ Dynamic data	2008	✓ 7 ✓ 8.1* ✓ 8* + Vista	✓2008 R2 SP1* + 2012 R2 + 2012 + 2008 SP2 + 2003
3.0	2.0	WPF, WCF, WF, CardSpace	-	✓ Vista	✓ 2008 R2 SP1* ✓ 2008 SP2* + 2003
2.0	2.0	Generics ASP.NET additions	2005	-	✓ 2008 R2 SP1 ✓ 2008 SP2 ✓ 2003
1.1	1.1	ASP.NET and ADO.NET updates Side-by-side execution	2003	-	✓ 2003
1.0	1.0	First version of the .NET Framework.	Visual Studio .NET	-	-