5.14.1
(fix): Fix SSE streaming performance regression by caching pydantic.TypeAdapter instances
in parse_obj_as(). Previously, a new TypeAdapter was constructed on every call, which
is extremely expensive for discriminated union types. This caused ~8x slowdown in SSE
event parsing introduced in v4.51.0 (parse_sse_obj).
5.14.0
(feat): Add support for the x-fern-base-path OpenAPI extension. Root path
parameters declared on the base path are hoisted to the client
constructor; endpoint methods no longer take them as arguments and
URL substitution reads them from the client wrapper.
5.13.1
(fix): Use hasWebSocketInTree IR field to wire WebSocket sub-clients into the
root client, even when the WebSocket channel lives on a nested sub-resource
rather than the top-level namespace package.