# `rfc3921` — XSOs for legacy protocol parts

This module was introduced to ensure compatibility with legacy XMPP servers (such as ejabberd).

class `aioxmpp.rfc3921.``Session`(*args, **kwargs)

  IQ payload to establish a legacy XMPP session.

  New in version 0.4.

class `aioxmpp.rfc3921.``SessionFeature`(*args, **kwargs)

  Stream feature which the server uses to announce that it supports legacy XMPP sessions.

  New in version 0.4.