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.NET Framework 4.5 Features:

Windows Workflow Foundation(WF)

  • State machine workflows Enhancements
  • Enhanced Workflow Designer features
  • Storage of the view state information for a workflow in a single element in the XAML file
  • Versioning enhancements

Windows Communication Foundation(WCF)

  • Support for a UDP transport that enables developers to write services that use “fire and forget” messaging. A client sends a message to a service and expects no response from the service
  • Support for WCF services that use internationalized domain names (IDNs).
  • Ability to support multiple authentication modes on a single WCF endpoint when using the HTTP transport and transport security
  • New HTTPS protocol mapping to make it easier to expose an endpoint over HTTPS with Internet Information Services (IIS).

Windows Presentation Foundation(WPF)

  • New features for the VirtualizingPanel and Dispatcher classes.
  • Improved performance when displaying large sets of grouped data, and by accessing collections on non-UI threads.
  • Ability to set the amount of time that should elapse between property changes and data source updates
  • The new Ribbon control, which enables you to implement a ribbon user interface that hosts a Quick Access Toolbar, Application Menu, and tabs


  • Support for Internationalized Domain Name (IDN) parsing
  • Support for Email Address Internationalization (EAI)
  • Improved IPv6 support.
  • Dual-mode socket support.


  • Support for content distribution network (CDN) fallback in the ScriptManager control.
  • Support for asynchronous modules and handlers
  • Support for new HTML5 form types
  • Support for unobtrusive JavaScript in client-side validation scripts
  • Integrated encoding routines from the AntiXSS library (previously an external library) to protect from cross-site scripting attacks
  • Enhancements in Parallel Computing


  • Resource file Generator(Resgen.exe) – Used to creat a .resources file to .resw file for use in Windows Store apps
  • Managed Profile Guided Optimization (Mpgo.exe) – Enables you to improve application startup time, memory utilization (working set size), and throughput by optimizing native image assemblies

.NET for Windows Store apps

  • Windows Store apps are designed for specific form factors and leverage the power of the Windows operating system. A subset of the .NET Framework 4.5 is available for building Windows Store apps for Windows by using C# or Visual Basic. This subset is called .NET for Windows Store apps.

.NET Framework 4.0 Features:

  • Common Language Runtime (CLR)  – The following sections describe new features in security, parallel computing, performance and diagnostics, dynamic language runtime, and other CLR-related technologies
  • Base Class Libraries
  • Networking  – Enhancements have been made that affect how integrated Windows authentication is handled by the HttpWebRequestHttpListenerSmtpClientSslStreamNegotiateStream, and related classes in the System.Net and related namespaces
  • Web  – The following sections describe new features in ASP.NET core services, Web Forms, Dynamic Data, and Visual Web Developer.
  • Client  – The following sections describe new features in Windows Presentation Foundation (WPF) and Managed Extensibility Framework (MEF).
  • Data
  • Communications  – Windows Communication Foundation (WCF) provides the new features and enhancements described in the following sections.
  • Workflow – Windows Workflow Foundation (WF) in .NET Framework 4.0 changes several development paradigms from earlier versions. Workflows are now easier to create, execute, and maintain.

.NET Framework 3.5 Features:

  • Language Integrated Query (LINQ)  for SQL, XML, Dataset, Object
  • Addin system
  • p2p base class
  • Active directory
  • ASP.NET Ajax
  • Anonymous types with static type inference
  • Paging support for ADO.NET
  • ADO.NET synchronization API to synchronize local caches and server side data stores
  • Asynchronous network I/O API
  • Support for HTTP pipelining and syndication feeds.
  • New System.CodeDom namespace

.NET Framework 3.0 Features:

Also called WinFX,includes a new set of managed code APIs that are an integral part of Windows Vista and Windows Server 2008 operating systems and provides

  • Windows Communication Foundation (WCF) – formerly called Indigo; a service-oriented messaging system which allows programs to interoperate locally or remotely similar to web services
  • Windows Presentation Foundation (WPF) –  formerly called Avalon; a new user interface subsystem and API based on XML and vector graphics, which uses 3D computer graphics hardware and Direct3D technologies.
  • Windows Workflow Foundation (WF) allows for building of task automation and integrated transactions using workflows.
  • Windows CardSpace, formerly called InfoCard; 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

.NET FrameWork 2. 0 Features:

  • Generics
  • Anonymous methods
  • Partial class
  • Nullable type
  • The new API gives a fine grain control on the behavior of the runtime with regards to multithreading, memory allocation, assembly loading and more
  • Full 64-bit support for both the x64 and the IA64 hardware platforms
  • New personalization features for ASP.NET, such as support for themes, skins and webparts.
  • .NET Micro Framework
  • Data Tables

Comments on: "Difference between .NET Framework 4.5/4.0/3.5/3.0/2.0" (17)

  1. Keka..Excellent Article.

  2. Very Good Article….

  3. Ranjit Saini said:

    Nice and most useull Article…

  4. Very Good Article

  5. Anil Kumar said:

    vary nice article……

  6. Deepak Samuel said:

    ya really gud,but….it needs explanations

  7. s i too need explanation for .net frame work4.0,could u please give me explanation if anybody knows….

  8. could u please explain basic knowledge about java script,jquery ans css ,if any any body knows?

  9. good artcle

  10. ghanshyam vishakarma said:

    so good article

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