3.9.2

(fix): Fix nullable field serialization in PATCH requests with wrapped request bodies. Explicit null values (Nullable.ofNull()) are now correctly serialized as {"field": null} instead of being omitted like Nullable.empty().

3.9.1

(fix): Fix raw client methods to return union types instead of first variant when using response properties (x-fern-sdk-return-value) with discriminated or undiscriminated unions.