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Claude Code

Anthropic · CLI

Claude Code 2.1.201

2.1.200→2.1.201·July 3, 2026 at 8:01 PM UTC

Patch release with internal diagnostic and session authentication updates.

Changelog

  • [new] Added CLAUDE_CODE_OTEL_DIAG_STDERRT environment variable to support OpenTelemetry diagnostic output.
  • [new] Introduced tengu_sessions_elevated_auth_enforcement0 feature gate for session authentication handling.

Models & prompts

No changes.

Under the hood

Internal feature flag and environment variable additions to support ongoing diagnostic and authentication work.

content/

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content/ browserNavigate docs, prompts, and root filesFolder index plus per-file pages with prev/next and a full file sidebar.
README.mdDocs2 KBpackage.jsonMetadata1.4 KBmanifest.jsonMetadata1.4 KBversion.jsonMetadata172 Bcli-wrapper.cjsCJS4.8 KBinstall.cjsCJS7 KBsdk-tools.d.tsTS136.4 KBLICENSE.mdDocs147 B
Older release← 2.1.200
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