A Brief Version History of WCF

A Brief Version History of WCF

29 Jul 2025
Beginner
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WCF stands for Windows Communication Foundation. It is Microsoft's latest technology that enables applications in a distributed environment to communicate with each other. WCF is Microsoft's unified programming model for building service-oriented applications. It enables developers to build secure, reliable, transacted solutions that integrate across platforms and interoperate with existing.

WCF Version History
WCF Version
Introduced with .NET & IDE
Features Detail
4.5
4.5 and Visual Studio 2012
  1. Task-based Async Support

  2. Contract-First Development

  3. WCF Configuration Validation

  4. Web Socket Support

  5. UDP Endpoint Support

  6. New Https protocol mapping on IIS

  7. Streaming Improvements

  8. Multiple Auth support for single endpoint

4.0
4.0 and Visual Studio 2010
  1. Simple Configuration

  2. Serialization Enhancements

  3. Support for WS-Discovery

  4. Routing Service

  5. Standard Endpoints

  6. Workflow Service

3.5
3.5 and Visual Studio 2008
  1. UriTemplates Support

  2. Support for REST Style Services

  3. Asp.NET Ajax Integration and JSON support

  4. Added WS* Specification Support

  5. Support for RSS and Atom feeds

3.0
3.0 and Visual Studio 2005
  1. Introduced first version of WCF with many features like Address, Binding, Contract, Sessions, Instancing, and Concurrency management

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About Author
Shailendra Chauhan (Microsoft MVP, Founder & CEO at ScholarHat)

He is a renowned Speaker, Solution Architect, Mentor, and 10-time Microsoft MVP (2016–2025). With expertise in AI/ML, GenAI, System Design, Azure Cloud, .NET, Angular, React, Node.js, Microservices, DevOps, and Cross-Platform Mobile App Development, he bridges traditional frameworks with next-gen innovations.

He has trained 1 Lakh+ professionals across the globe, authored 45+ bestselling eBooks and 1000+ technical articles, and mentored 20+ free courses. As a corporate trainer for leading MNCs like IBM, Cognizant, and Dell, Shailendra continues to deliver world-class learning experiences through technology & AI.
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