Dot Net Frameworks and its changes

 FRAME WORK ARCHITECTURE

Version	Release Date
1.0	2002
1.1	2003
2.0	2005
3.0	2006
3.5	2008
4.0	2010

.NET Framework 1.0

This is the first release of the .NET Framework. Released on February 13, 2002  Available for Windows 98, NT 4.0, 2000, and XP.

.NET Framework 1.1

This is the first major .NET Framework upgrade and was published on April 3, 2003. It is also part of the second release of Microsoft Visual Studio .NET (released as Visual Studio .NET 2003). This is the first version of the .NET Framework to be included as part of the Windows operating system, shipping with Windows Server 2003.

      Changes since 1.0

     Built-in support for mobile ASP.NET controls, ODBC and Oracle databases which was previously   available as an add-on for .NET Framework 1.0, now part of the framework.

     .NET Compact Framework - a version of the .NET Framework for small devices.

      Numerous API changes.

 .NET Framework 2.0

       Released with Visual Studio 2005, Microsoft SQL Server 2005, and BizTalk 2006.

The 2.0 Redistributable Package can be downloaded for free from Microsoft, and was published on 2006-01-22.

It is included as part of Visual Studio 2005 and Microsoft SQL Server 2005.

Version 2.0 is the last version with support for Windows 2000, Windows 98 and Windows Me.

      Changes since 1.1

Numerous API changes.

Language support for Generics built directly into the .NET CLR.

Many additional and improved ASP.NET web controls.

New data controls with declarative data binding.

New personalization features for ASP.NET, such as support for themes, skins and webparts.

.NET Framework 3.0

Formerly called WinFX, includes a new set of managed code APIs that are an integral part of Windows Vista and Windows Server 2008 operating systems. It consists of four major new components:

Windows Presentation Foundation (WPF)

Windows Communication Foundation (WCF)

Windows Workflow Foundation (WF)

Windows CardSpace

.NET Framework 3.5

Version 3.5 of the .NET Framework was officially released to manufacturing (RTM) on November 19, 2007.

As with previous versions, a new .NET Compact Framework 3.5 was released in tandem with this update in order to provide support for additional features on Windows Mobile and Windows Embedded CE devices.

Changes since version 3.0

New language features in C# 3.0 and VB.NET 9.0 compiler.

Adds support for expression trees and lambda methods

Extension methods

Anonymous types with static type inference

Language Integrated Query (LINQ)

Paging support for ADO.NET

ADO.NET synchronization API to synchronize local caches and server side datastores.

ASP.NET AJAX.

SP1 (codename "Arrowhead")

.NET Framework 3.5 SP1, codenamed "Arrowhead", reportedly will enhance support for occasionally connected applications, and provide built-in support for the Microsoft ASP.NET Model-View-Controller (MVC) Framework.

Future development

Microsoft has not yet made public a roadmap of the development plans for future edition of .NET framework, but has released general information regarding it. To this end, it will include technologies like PLINQ (Parallel LINQ), a parallel implementation of the LINQ engine, and Task Parallel Library, which exposes parallel constructs via method calls.