Highlights include Sliding Sync (instant login/launch/sync), Native OIDC (industry-standard authentication), Native Group VoIP (end-to-end encrypted large-scale voice & video conferencing) and Faster Joins (lazy-loading room state when your server joins a room).
Are you sure about that? I think they’ll still exist, but will be less meaningful, as a users identity will be backed by cryptography instead of their name with the HS name
afaik server domains would essentially just be aliases for a user’s UUID, like how it works with rooms.