Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.273 ·

New auth failure categories for Microsoft Foundry and Gateway

New error messages for failed Microsoft Foundry and generic gateway authentication

TierYou'll noticehow much it should matter to you
Useful2my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaAuthwhat it touches
KindImprovementsin v2.1.273,
You'll notice

New error messages for failed Microsoft Foundry and generic gateway authentication

What

Two new error messages were added for authentication failures: one specifically for Microsoft Foundry, and one for generic gateway refusals. Both share a new suffix noting that credentials are managed via environment variables.

Why

This gives clearer, more specific error text when authentication fails through a Microsoft Foundry or gateway setup, making it easier to understand that the issue relates to environment-managed credentials.

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