> This page is for SDKs, version Legacy.
> For other versions, use one of these documentation indexes:
> - Current (default): https://buildwithfern.com/learn/sdks/current/llms.txt
> - Legacy: https://buildwithfern.com/learn/sdks/legacy/llms.txt

> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

## 4.46.3

**`(fix):`** Fix empty request body issue where endpoints with all-optional fields would send an empty
body instead of `{}`. When an endpoint has a request body type but all fields are optional,
the SDK now correctly sends `{}` as valid JSON rather than omitting the body entirely.