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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 v2.1.232

Invalid AWS region variable is called out by name

You'll notice
Useful3 Signal1
Bedrock

On Bedrock, an unusable AWS region variable is now named so you can fix or unset it.

AWS_REGIONAWS_DEFAULT_REGION
What

On Bedrock, if AWS_REGION or AWS_DEFAULT_REGION holds a value Claude Code cannot use, the region display now says the variable was invalid and ignored and tells you to fix or unset it, rather than showing the generic hint to set a region.

Details
  • The AWS client path now waits for the region to resolve and passes it explicitly, so the label and the region actually used agree.
Evidence

region env var invalid, ignored; fix or unset AWS_REGION / AWS_DEFAULT_REGION

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 v2.1.232 →