.Net Version History

Version          Year          Visual Studio

.Net (Beta)        2000          VS.NET Beta

.Net 1.0              2002          VS.NET

.Net 1.1              2003           VS 2003

.Net 2.0              2005          VS 2005

.Net 3.0              Not for market

.Net 3.5              2008           VS 2008

.Net 4.0              2010           VS 2010

.Net 4.5              2011             VS 2011 Beta

Major Concepts Added In Different Versions:

.Net 1.1:
       1.ASP.NET Mobile Controls
          2.Retrieving data using data reader (HasRow property        introduced)
          3.Side By Side execution
          4.More Concentrate on framework Security
          5.IPV6 support

.Net 2.0:

1.   64 bit platform support

2.   Access control List Support

3.   ADO.NET

4.   ASP.NET

5.   COM Introp services

6.   Adding Console Class

7.   Data Protection in API

8.   Distributed Computing

9.   FTP Support

10.         Generics

11.         Globalization

12.         I/O

13.         Remoting

14.         Caching

15.         Security exception

16.         Serialization

17.         SMTP

18.         Threading

19.         Transaction

20.         Web Services

21.         Anomynous Type

22.         Partial Classes

23.         Nullable Types

24.         Master Pages

25.         Site navigation


.Net 3.0:

1.   WCF

2.   WPF

3.   WWF

4.   Windows CardSpace

    .Net 3.5:

1.   Collections

2.   Garbage Collector

3.   Cryptography

4.   Networking

5.   LINQ

6.   List View and Data Pager

7.   Ajax

.Net 4.0:

1.   DLR (Dynamic Language Runtime)

2.   Parallel Computing

3.   Optional and named Parameters

4.   Overridable Web.Config Settings