Sharp.Xmpp is looking for a maintainer! Unfortunatelly I do not have currently the time needed to maintain the library. Luckily a small but vibrant community has evolved around Sharp.Xmpp. If you would like to be the project's maintainer please sent an email to pgstath@gmail.com. This should include issues, tickets and commits that you have done for Sharp.Xmpp or other similar project. Sharp.Xmpp is a multiplatform, Windows and Android, .NET XMPP client assembly.Sharp.Xmpp supports IM functionality & a variety of XMPP extensions, is simple and is extensively tested against Android Xamarin. It is a fork of the currently frozen excellent S22.Xmpp project. Sharp.Xmpp will be at the FOSSDEM 2016 Real time DevRoom!
as described in https://xmpp.org/rfcs/rfc6121.html#presence-syntax-children-show