Is your feature request related to a problem? Please describe.
It's not really a problem because there is a workaround, but I believe that it could be a mistake in the API specification.
Describe the solution you'd like
I'd like name in UploadFileVersionRequestBodyAttributesField to be optional.
Describe alternatives you've considered
As a workaround, you can set the name to be the previous name, so that there shouldn't be any change.
Additional context
https://developer.box.com/reference/post-files-id-content/
I'm aware that the API specification says required, but the comment says optional. And I believe that optional makes more sense so that you can avoid unwanted renames of an existing file during upload.