You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Model SwitchingArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What
When the model changes mid-session, the notice shown to you is now suppressed unless the switch is actually meaningful, comparing the new model's alias and family, and any stepped-down variant of it, against both the previous model and the conversation's model.
Details
Switches within the same family no longer produce a breadcrumb.
Always on.
Evidence
conversationModel
Strings lifted out of the shipped bundle, so the claim above can be checked against them.