There was certain controversy about which protocol to use for sharing history between clients for both private chats and MUC, but now XEP0313 seems to be the fu

There was certain controversy about which protocol to use for sharing history between clients for both private chats and MUC, but now XEP0313 seems to be the future of it. http://stackoverflow.com/questions/25982426/persistent-xmpp-muc-xep-45-like-whatsapp-groupchats http://stackoverflow.com/questions/25982426/persistent-xmpp-... There are implementations for servers, e.g https://code.google.com/p/prosody-modules/wiki/mod_mam_muc https://code.google.com/p/prosody-modules/wiki/mod_mam_muc, but I have yet to see a client reliably supporting this.