BUGFIX
400 Errors Behind a Proxy Gateway Are Fixed
If your ANTHROPIC_BASE_URL pointed at a proxy or gateway, every request used to fail with a 400 … Input tag 'advisor_20260301' error — a regression from 2.1.275 that's now fixed.
Release notes
Original changelog
Original changelog400 Errors Behind a Proxy Gateway Are Fixed
Fixed every request failing with `400 … Input tag 'advisor_20260301'` when `ANTHROPIC_BASE_URL` points at a proxy or gateway (2.1.275 regression)