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Claude Code 2.1.283

Update8 days agoUnverifiedAdded Oct 2, 2026

- Added x-claude-code-prompt-id to the gateway hint headers so LLM gateways can group the requests that serve one user prompt; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1 Added availableModelsMatch managed setting: with "exact", an availableModels entry allows only the model version it names, so new releases stay blocked until listed Added deniedModels...

Topics: AI agents, LLMs, MCP, Streaming, Observability

Anthropic's release notes

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Also shipped on Sep 25, 2026

Anthropic in September 2026

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