Upgrading the SDL Tridion 2013 SP1 HR1 UGC Community Web service
Before SDL Web 8, the UGC Community Web service (now called the UGC Community service) could only exist as (part of) a Web application. As of SDL Web 8, it can also be a standalone microservice. How you upgrade the Server Role depends on how you have it installed now: as a Java/JSP Web application or as a .NET Web application.