You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.317,
ImprovementsSection of the release
What
When CLAUDE_CODE_USE_FOUNDRY is set and an error matches one of a known set of error types, Claude Code now names Azure as the provider the error came from. This environment variable makes Claude Code use Microsoft Foundry for model access. Errors could already be attributed to AWS or Google Cloud; before this change, there was no Azure attribution.
Why
If you use Foundry, errors are now traced to the right provider.
