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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.

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

Auth retries and token refreshes no longer collide across API hosts

You'll notice
Useful3 Signal2
Auth

Auth retries for different API hosts no longer trip over each other.

What

The de-duplication of in-flight 401 retries and token refreshes is now kept per API host instead of in one global map, so concurrent auth work for different hosts no longer interferes.

Evidence

cfe.of(W().host)

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 v2.1.251 →