I have released version 1.15 of slixmpp, the python XMPP library.
Besides the continuation of @nicoco ’s quest to add every XEP under the sun, the most notable change is that building the rust module is now optional (i.e. in the absence of sufficient tools, slixmpp will happily be installed using the pure-python fallback for the JID module, which is kind of important for Mac OS or Winslop platforms).