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What's new in WCF 4.5

This article explains about the new features introduced in WCF 4.5. Microsoft has brought new feautes in WCF 4.5 to reduce the developers job and maintain the code

All new features of WCF 4.5 is explained in different parts


  • Always create the service with Interface->Implementation format, mention the contract in Interface.
  • Define the service in Class library and refer the class library in Host project. Don’t use service class in host project.
  • Change the instance mode to per call as default.
  • Always catch exception using try/catch block and throw exception using FaultException < T >.
  • Logging and Include exception should be enable while compiling the project in debug mode. While in production deployment disable the logging and Include exception details.