# September 20, 2024

## 4.2.6

**`(fix):`** Serialization utilities (necessary when pydantic aliases are removed) now respects dictionaries as well.

## 4.2.5

**`(fix):`** Parameters of file upload functions now default to OMIT, not None, so that the SDK appropriately
filters out unset parameters, while still allowing for user specified None values.