.NET Framework Version

.NET Framework Version

Version No.	Release Date	Visual Studio Version	Default in Windows	CLR Version	Features in Release
1.0	13 Feb 2002	Visual Studio .NET	NA	1.0	First Version of CLR and Base Class Library
1.1	24 Apr 2003	Visual Studio 2003	Windows Server 2003	1.1	1. First Major version of .NET Framework 2. Built-in support for mobile ASP.NET controls. Previously available as an add-on for .NET Framework, now part of the framework 3. Security changes – enable Windows Forms assemblies to execute in a semi-trusted manner from the Internet, and enable Code Access Security in ASP.NET applications 4. Built-in support for ODBC and Oracle databases. Previously available as an add-on for .NET Framework 1.0, now part of the framework 5. .NET Compact Framework – a version of the .NET Framework for small devices 6. Internet Protocol version 6 (IPv6) support
2.0	7 Nov 2005	Visual Studio 2005	Windows Server 2003 R2	2.0	1.  Generics 2.  Language support for generics built directly into the .NET CLR 3.  Full 64-bit support for both the x64 and the IA-64 hardware platforms  4.  SQL Server integration – .NET 2.0, VS 2005, and SQL Server 2005 are all tied together. This means that instead of using T-SQL, one can build stored procedures and triggers in any of the .NET-compatible languages 5.  A new hosting API for native applications wishing to host an instance of the .NET runtime. The new API gives a fine grain control on the behavior of the runtime with regards to multithreading, memory allocation, assembly loading and more 6.  Many additional and improved ASP.NET web controls 7.  New data controls with declarative data binding 8.  New personalization features for ASP.NET, such as support for themes, skins, master pages and webparts 9.  .NET Micro Framework – a version of the .NET Framework related to the Smart Personal Objects Technology initiative 10. Membership provider 11. Partial classes 12. Nullable types 13. Anonymous methods 14. Iterators 15. Data tables
3.0	6 Nov 2006	Visual Studio 2005	Windows Vista, Windows Server 2008	2.0	1. Windows Presentation Foundation (WPF), a new user interface subsystem and API based on XML and vector graphics, which uses 3D computer graphics hardware and Direct3D technologies 2. Windows Communication Foundation (WCF), a service-oriented messaging system which allows programs to interoperate locally or remotely similar to web services 3. Windows Workflow Foundation (WF) allows for building of task automation and integrated transactions using workflows 4. Windows CardSpace, a software component which securely stores a person’s digital identities and provides a unified interface for choosing the identity for a particular transaction, such as logging in to a website
3.5	19 Nov 2007	Visual Studio 2008	Windows 7, Windows Server 2008 R2	2.0, 2.0 SP1, 3.0 SP1	1. Added new features such as AJAX-enabled Web sites and LINQ 2. Source code of Base Class Library (BCL) has been partially released 3. New .NET Compact Framework 3.5 released
3.5 SP1	11 Aug 2008	Visual Studio 2008	Windows 7, Windows Server 2008 R2	3.0 SP2	1. .NET Framework Client Profile  2. Dynamic Data 3. Two new data service components added, ADO.NET Entity Framework and ADO.NET Data Services 4. Two new assemblies for web development, System.Web.Abstraction and System.Web.Routing 5. New set of controls “Visual Basic Power Packs” introduced
4.0	12 Apr 2010	Visual Studio 2010	NA	4.0	1. New Version of CLR 2. Parallel Extensions to improve support for parallel computing, which target multi-core or distributed systems. To this end, technologies like PLINQ (Parallel LINQ), a parallel implementation of the LINQ engine, and Task Parallel Library, which exposes parallel constructs via method calls are included 3. New Visual Basic .NET and C# language features, such as implicit line continuations, dynamic dispatch, named parameters, and optional parameters 4. Code Contracts 5. Inclusion of new types to work with arbitrary-precision arithmetic (System.Numerics.BigInteger) and complex numbers (System.Numerics.Complex) 6. Dynamic Language Runtime (DLR) 7. Managed Extensibility Framework (MEF) 8. Windows Server AppFabric for application server capabilities in the form of AppFabric hosting and in-memory distributed caching support
4.5	15 Aug 2012	Visual Studio 2012	Windows 8, Windows Server 2012	4.5	1. Windows Store Apps 2. The Portable Class Library project in Visual Studio 2012 3. Background Garbage Collection Servers 4. Asynchronous File Operations 5. Regex Timeout 6. Profile Optimization – Improved Startup Performance 7. Zip Compression 8. Async and Await – Code Markers