July 23, 2026 | Fern Documentation

1.53.0

(feat): Add support for per-endpoint auth routing. When the API-level auth requirement is ENDPOINT_SECURITY, each endpoint now applies only the auth scheme(s) it declares in its IR security field (OR across the list of requirements, AND within a requirement, and no auth when security is empty), instead of applying every configured credential to every request. Behavior for the ALL and ANY auth requirements (the common cases) is unchanged.

1.52.0

(feat): Add a serverUrlVariables generator config option (default true) that lets consumers opt out of generated server URL variable options and templated base-URL interpolation. When disabled, the generator no longer emits the per-variable client options nor the construction-time base-URL template interpolation, falling back to the pre-feature base-URL behavior.