[Standards] UPDATED: XEP-0421 (Occupant identifiers for semi-anonymous MUCs)

Version 0.3.0 of XEP-0421 (Occupant identifiers for semi-anonymous MUCs) has been released. Abstract: This specification defines a method that allows clients to identify a MUC participant across reconnects and renames. It thus prevents impersonification of semi-anonymous users. Changelog: * Adjust wording to use semi-anonymous or pseudonymous instead of anonymous * Explicitly mention issues arising from occupant id matching across rooms * Add example with server secret instead of room secret * Add some pseudocode (lmw) URL: https://xmpp.org/extensions/xep-0421.html Note: The information in the XEP list at https://xmpp.org/extensions/ is updated by a separate automated process and may be stale at the time this email is sent. The XEP documents linked herein are up-to- date.