Nothing. XMPP has an active community, mature servers for every kind of deployment, and many clients under active development for a range of platforms.
My personal focus within the community these days is with improving the ecosystem UX through initiatives like https://docs.modernxmpp.org/
My personal focus within the community these days is with improving the ecosystem UX through initiatives like https://docs.modernxmpp.org/
You can follow XMPP development via the community newsletter (email or RSS): https://xmpp.org/newsletter/