# April 3, 2025

## 0.57.16

**`(fix):`** Fix an issue where environment URLs would be incorrectly remapped during the merge IR step.

## 0.57.15

**`(fix):`** Add support for handling nullable and optional references in the OpenAPI parser. When a reference is marked with `nullable: true` or is not included in the required properties list, the parser now correctly wraps the referenced type in a nullable or optional container. This ensures that references respect the same nullability and optionality rules as inline schemas.