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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.

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Claude Code v2.1.247

Model picker acts on the option you are pointing at

You'll notice
Useful3 Signal1
Models

The model picker now changes effort on the option you're actually pointing at.

What

Adjusting effort with left and right, and the session-only shortcut, now read the currently focused model live and re-derive it from the filtered list, refusing when that option is missing or disabled. Previously they could act on state captured at an earlier render.

Details
  • Five separate effort capability computations (effort, max, extra-high and ultra support, default effort, plus cap levels) collapsed into one lookup per model.
  • The effort telemetry event is unchanged.
Evidence

modelPicker:thisSessionOnly

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.247 →