CRelease notes
Claude Code v2.1.276
What's changed
- Fixed every request failing with
400 … Input tag 'advisor_20260301'whenANTHROPIC_BASE_URLpoints at a proxy or gateway (2.1.275 regression)
Release · Claude Code · Anthropic
Claude Code v2.1.276
What's new in Claude Code v2.1.276, released Sep 18, 2026 (). Newer: v2.1.310 (Oct 23, 2026)