Upgrading the .NET session preview Web service Server Role
To update your session preview Web service Server Role running as a .NET Web application (now called the Experience Manager Web service Server Role), you must also update existing DLLs.
Upgrading the .NET session preview Web site extension Server Role
Upgrading the .NET Content Delivery Web service Server Role
Upgrading the .NET API Server Role
Upgrading the .NET HTTP Upload Server Role
Upgrading the .NET UGC Moderator and Visitor Web service Server Roles
Content Delivery .NET upgrade impact overview