Source: c139 Updates — Phase 2, 2026-11-11 · the plan · review 1 · qcontrol's version and the source from useNativeWorld('meridian-day90'); the update itself is the knob (app/data/c139-updates-mock.ts) · the tray and the trace →

One page, nine states (ten in the later era, with the organisation's policy), three preferences, two eras. The state is the knob: no world carries update state (c132 D6), so ?state=, ?pref=, ?era=, ?sensor=1 and ?skip=1 name what the capture shows. qcontrol's running version is the world's bridge (/api/sensor); the app's is the footer's. The buttons walk the machine (Update → downloading → ready; Restart now → installed; Check now → checking → available), each followed by a toast as c137 D12 rules. The footer carries the trace: 0.2.0 ready in Ask me first and Only when I click, updated for seven days after an install. In the partner era the notes are internal, drafted from the cycle records with their sources; later they are the public notes and the channel becomes Stable or Beta.