Claude Code 2.1.278

UpdateSep 19, 2026VerifiedAdded Sep 22, 2026

What's changed Changed auto mode for Claude API and Enterprise users, and on Bedrock, Vertex, Foundry and gateways, to default to the server-side classifier, which does not charge for classifier overhead ( CLAUDE_CODE_AUTO_MODE_SERVER=0 opts out on Bedrock, Vertex, Foundry and gateways); warns on billed fallback.

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Read Anthropic's release notes

https://github.com/anthropics/claude-code/releases/tag/v2.1.278

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Also shipped on Sep 19, 2026

Databricks Agent Bricks and Mosaic AISep 19, 2026

Configure provider discounts for external model spend

Unity Gateway estimates external model spend using each provider's published list prices. If your organization has negotiated different pricing with a provider, you can now configure a price multiplier on the model provider service so that spend estimates reflect those rates.

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