10min Administrivia (Chairs) 05min Charter Review (10Kft level) https://datatracker.ietf.org/group/mls/about/ 10min Architecture (Emad) https://datatracker.ietf.org/doc/draft-barnes-mls-protocol/ 25min Handshake message ordering / server trust (Emad) 25min ART vs. TreeKEM vs. both (Jon) 25min Message Protection (Benjamin w/ local support from Richard) 25min Authentication (Richard) 25min A.O.B - Versioning / extensibility - Interop testing framework - Interim plans (Late sept, Berlin?)