Staircase 0.1.12 — without multi-device, a device that falls behind a group (cannot open its newest messages) no longer changes it or sends into it: it refuses approvals, invites and renames, holds sends after a run of unreadable messages, and says so, instead of splitting the group. Messages are selectable (part or all, with Reply / Copy message in the text menu), links open, Copy image; a profile screen (npub, nprofile, QR, verified NIP-05) and editing your own profile; coordinator invites by QR and one link parser for every cordn-web link; linked devices share the Blossom list on the newest tip.