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

## 1.23.6

**`(fix):`** Fix multipart file uploads to support in-memory readers (bytes.Reader, strings.Reader, etc.)
by ensuring the filename attribute is always present in the Content-Disposition header.
When no filename is provided, the field name is used as the default filename.

## 1.23.5

**`(fix):`** Fix wire tests to use configured `clientConstructorName` instead of hardcoded `NewClient`.