Vibe Coding
Claude Code 2.1.266 unwinds a one-release regression that forced gateway sign-in on anyone who set CLAUDE_CODE_USE_GATEWAY
In 2.1.265 the undocumented CLAUDE_CODE_USE_GATEWAY environment variable started forcing Cloud-gateway sign-in on its own, so any setup that also used an API key, apiKeyHelper, or custom auth headers failed every request with "Not signed in to the Cloud gateway". 2.1.266 restores the old behaviour: the variable is ignored unless ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN are both set. If you proxy Claude Code through an LLM gateway and 2.1.265 broke you, the fix is a version bump, not a config change.
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