Most things use Message Archive Management these days: https://xmpp.org/extensions/xep-0313.html https://xmpp.org/extensions/xep-0313.html It's still experimen

Most things use Message Archive Management these days: https://xmpp.org/extensions/xep-0313.html https://xmpp.org/extensions/xep-0313.html It's still experimental, but it should replace message archiving "soon" once a few final kinks have been worked out (that being said, most servers and clients implement it already and in my mind it's ready for production).