# August 20, 2024

## 0.39.12

**`(fix):`** The mock folder now includes source files, and the CLI no longer hard fails if it cannot resolve source files that are of OpenAPI type.

## 0.39.11

**`(fix):`** The Fern CLI now handles parsing `x-fern-parameter-name` on path parameters in an OpenAPI spec.

### What's been fixed

* Fix: The Fern CLI now handles parsing `x-fern-parameter-name` on path parameters in an OpenAPI spec. For example,
  if you want to rename a path parameter in the generated SDK, you can now do:

```yml
paths:
  "/user":
      get:
      operationId: list_user
      parameters:
          - in: header
          name: X-API-Version
          x-fern-parameter-name: version
          schema:
              type: string
          required: true
```

For more information, please check out the [docs](https://buildwithfern.com/learn/api-definition/openapi/extensions/parameter-names).