Version 0.9.0 of XEP-0384 (OMEMO Encryption) has been released. Abstract: This specification defines a protocol for end-to-end encryption in one-to-one chats, as well as group chats where each participant may have multiple clients per account. Changelog: Device labels must be signed Allow empty device list in XML schema Reworded security consideration that could be interpreted as forbidding trust mechanisms like BTBV/TOFU Added section about dealing with lack of presence subscription Removed reference to omemo-session-healing (th) URL: https://xmpp.org/extensions/xep-0384.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.