> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 0.81.0 **`(feat):`** Control how type references are wrapped when they refer to nullable schemas using the new `wrap-references-to-nullable-in-optional` setting: * `true`: When a type reference points to a nullable schema, it will be wrapped in `optional<>`. * `false`: When a type reference points to a nullable schema, it will be wrapped in `nullable<>`. The default is `true`. **`(feat):`** Add new `coerce-optional-schemas-to-nullable` setting to control how optional schemas are treated: * `true`: Optional schemas will be coerced to nullable, resulting in `nullable`. * `false`: Optional schemas will remain as `optional`. The default is `true`. **`(feat):`** Add type for nullable schema examples. If a schema is nullable, examples for its inner type will be parsed or generated, or `null` will be used as an example if no inner examples are available. ## 0.80.2 **`(chore):`** Update migrations for go to support IRv60.