Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Stale model-switch confirmations are rejected

You'll notice
Useful3 Signal2
Models

If the model changes while a switch prompt is open, you're asked to pick again rather than applying a stale choice.

What

Answering the model-switch confirmation now re-checks that the model has not changed since the prompt appeared. If it has, you get "The model changed while you were confirming; pick again" instead of a stale choice being applied.

Evidence

The model changed while you were confirming; pick again

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.251 →