You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
BedrockArea: what it touches
ImprovementsKind: in v2.1.239,
ImprovementsSection of the release
What
When resolving AWS credentials for Bedrock, Claude Code now passes a parent client configuration carrying the request handler and, where one is set, the region. Credential chains that need a regional endpoint, such as SSO or assume-role, can now resolve correctly instead of falling back to a default region.
Evidence
parentClientConfig
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
