> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 4.0.0-rc8 **`(fix):`** Pydantic models that call `update_forward_refs` on non-union circular reference dependencies now pass in `localns` for the current member, a field in Pydantic V1 that provides object contexts to models in the event objects are not fully rebuilt. ## 4.0.0-rc7 **`(fix):`** The generator now respects the old use\_str\_enums flag again, a regression was introduced where only the new flag `enum_type` was respected. ## 4.0.0-rc6 **`(fix):`** Pydantic models now call update forward refs on non-union circular references. This prevents runtime errors in certain cases where types self reference itself through a union.