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Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 4/5 agents 427 findings $12.75 so far

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 v2.1.83 24 Mar 2026

Default Teammate Model Setting

A new teammateDefaultModel setting allows users to configure the default model used when spawning teammate agents. Accessible through the /config settings UI under "Default teammate model".

Evidence

Teammate model config (search for "TeammateModel", "Default teammate model", "teammateDefaultModel")

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

See this entry in the whole of v2.1.83 →