Salesforce Files (ConventVersion) out of the box supports the ability to upload multiple versions of the same document such that the end user in Salesforce only see the current version of the document.

It would be a useful feature if DocGen when generating the same document more than once would upload subsequent documents as additioinal versions of the initial document instead of creating a new document on each generation.

Our use case is that we use docGen for sending quotes to our customers. We typically go through multiple iterations of a quote with a customer. Each time we send a new quote to a customer we run a docGen package that saves the quote to the record. The issue we have is that we can't easily determine which iteration a quote is since each quote gets uploaded a new separate new document. Instead it would be more helpful if docGen would use Salesforce's versioning system so that each time we upload a new quote, it creates it as a new version related to the initial quote. That way when the Sales rep view the quote in Salesforce they just see one file which is the latest version, but still can also click through to the file to view any previous versions for each revision that was sent out to a customer.