There have been significant efforts to reduce this kind of fragmentation and to outline which XEPs a client or server developer should focus on, given a certain

There have been significant efforts to reduce this kind of fragmentation and to outline which XEPs a client or server developer should focus on, given a certain target application. We are reviewing the most important specifications on a yearly base and provide recommendations in the form of Compliance Suites with different profiles like Instant Messaging, Mobile etc.: https://xmpp.org/extensions/xep-0443.html https://xmpp.org/extensions/xep-0443.html