Which version is live stops being a matter of opinion
Every save is an immutable revision with its own digest. Compare any two and see what actually changed, in the form rather than in the XML.
Immutable revisions, not overwrites
A revision is never edited. Publishing a change creates a new one and supersedes the old, so the thing that shipped in March is still there in March's exact bytes.
Diffs a reviewer can read
A raw XDP diff is unreadable to the person who owns the wording. YakForms compares the rendered output and the structure side by side, so a reviewer sees a moved field and a changed paragraph rather than a thousand lines of attribute churn.
Start with an estate assessment
Point YakForms at a copy of your repository. You get an inventory, a dependency graph and a validation report for the whole estate — before you commit to anything.