You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Remote ControlArea: what it touches
ImprovementsKind: in v2.1.232,
ImprovementsSection of the release
What
Code 4090 disconnects now carry a distinct reason each: a newer worker took over, the session is not active, the session was not found, or the client's view of the session is out of date. Each has plain-language text, for example that a session was ended or archived from another device or app.
Details
The epoch-mismatch handler emits a session-not-active event alongside the existing stale and mismatch events, each now carrying a reason.
The diagnostic line was reformatted to worker epoch mismatch (409) reason=....
Evidence
this session was ended or archived from another device or app (code 4090)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.