# August 18, 2025

## 0.66.21

**`(feat):`** Introduce an OpenAPI setting called `inline-all-of-schemas` which recursively
visits the scheme definitions of allOf schemas and inlines them into the child.

The benefit of doing this is that a child schema can modify whether or not a parent
property is required. Without this setting, Fern would ignore the child schema's
declaration of optional and prefer the parent schema's instead.

Add the following to your `generators.yml`:

```yml generators.yml
api:
  settings:
    inline-all-of-schemas: true
```

## 0.66.20

**`(fix):`** Add `kwargs` as a reserved word in python so that generated SDKs continue to compile.

## 0.66.19

**`(chore):`** Handle multipart/mixed content types in endpoint responses.

## 0.66.18

**`(chore):`** Updated allOf scheme parsing to grab additionalProperties flag