LaunchDevelopersSeptember 9, 2026

Claude Code 2.1.267 adds maxEffortLevel cap and prompt snapshot toggle

Claude Code 2.1.267 ships 53 CLI changes, led by a maxEffortLevel setting that caps effort on every provider including Bedrock, Vertex and Foundry while still letting users pick lower. A --system-prompt-snapshot off flag re-renders the system prompt each request for prompt iteration.

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