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claude_code_releases · Sep 18, 2026 · release
Source brief
claude-code v2.1.277
github.comSep 18, 2026
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Release highlights
- 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 B...
- 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 hos...
- Added an optional headers: map on Claude apps gateway upstreams, to send static headers to a proxy you run in front of a provider
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