v1.0.37 Claude Code Release Notes

Jun 30, 2025

Claude's Analysisby Sonnet 4.6

Removes Proxy-Authorization header injection via ANTHROPIC_AUTH_TOKEN and apiKeyHelper, hardening the auth boundary against credential leakage.

Change

Total Changes (vs Average)

0.1×

Version Type

Patch

Release Focus

Mixed

Days Since Prior Release

Release # This Month

#23 of 24

Bug Fix Ratio

Post-Release Edits

—

Change Category

Key Themes

1Security Hardening via Capability Removal

May Help If You've Noticed

Requests through an authenticated corporate proxy start failing after updating

Removed1 change

•Remove ability to set Proxy-Authorization header via ANTHROPIC_AUTH_TOKEN or apiKeyHelper

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v1.0.37 Claude Code Release Notes

Jun 30, 2025

Claude's Analysisby Sonnet 4.6

Full Analysis

Removes Proxy-Authorization header injection via ANTHROPIC_AUTH_TOKEN and apiKeyHelper, hardening the auth boundary against credential leakage.

Change

Total Changes (vs Average)

0.1×

Version Type

Patch

Release Focus

Mixed

Days Since Prior Release

Release # This Month

#23 of 24

Bug Fix Ratio

Post-Release Edits

—

Change Category

Key Themes

1Security Hardening via Capability Removal

May Help If You've Noticed

Requests through an authenticated corporate proxy start failing after updating

Removed1 change

•Remove ability to set Proxy-Authorization header via ANTHROPIC_AUTH_TOKEN or apiKeyHelper

v1.0.37 Claude Code Release Notes

Changes in Claude Code v1.0.37

Removed1 change

v1.0.37 Claude Code Release Notes

Changes in Claude Code v1.0.37

Removed1 change