Claude Code 2.1.277

UpdateSep 18, 2026VerifiedAdded Sep 22, 2026

What's changed Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in /config (not yet on Bedrock, Vertex or Foundry) Added CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY=1 for Claude apps gateways whose only egress is a forward proxy: every outbound request hands the proxy the...

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Read Anthropic's release notes

https://github.com/anthropics/claude-code/releases/tag/v2.1.277

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