Comparing different versions of a document is separate from keeping track of its revisions (thus providing reproducible builds), and the fact that it is not a t

Comparing different versions of a document is separate from keeping track of its revisions (thus providing reproducible builds), and the fact that it is not a text file doesn't negate the utility of the latter. For example, you can give tools like 'git diff' a custom command to run to compare certain files, such as a visual diff tool specific to a WYSIWYG document format. Even though existing source control tooling leans heavily towards text files, that doesn't mean they aren't still useful for binary files.