You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ModelsArea: what it touches
ImprovementsKind: in v2.1.251,
What probably matters to youSection of the release
What
What was already a rejected-switch telemetry path is now fed by a hook-style decision taken before the switch lands: anything other than proceed rejects it with an error, and a rejected system-prompt switch reports separately. Notices from the decision come back with a successful switch.
Details
Always on this code path, not behind a flag.
Evidence
model_switch_rejected
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
