Software

Apache Foundation Releases XMPP Server

Apache Vysper   Apache Vysper aims to be a modular, full featured XMPP (Jabber) server. More details on Vysper in their documentation. There are already some larger XEPs as modules available, most notably Multi User Chat (XEP0045) and Publish/Subscribe (XEP0060) BOSH (XEP0124, XEP0206)