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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 v2.1.233

Gateway requests carry the signed-in user's identity

Under the hood
Useful2 Signal3
Gateway

Proxy requests now attach your signed-in subject and email unless a managed principal is used.

What

Requests through the proxy path that are not made under a managed service principal now attach the user's subject and email, and pass the same pair to the model-list callback. Previously only the principal marker was attached.

Evidence

criPrincipal

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 v2.1.233 →