Versions and undoing changes

Every time a document is updated, Profusia keeps the previous version. Nothing is overwritten. To go back, ask your assistant to roll the file back (rollback_file) to an earlier version, or do it yourself: open the document in Docs, and its panel has a Version history section listing every version with its date, who made it and any note they left. Press Restore — it asks you to confirm with a second press, then makes that version current. Either way, restoring never deletes anything: the version you were on stays right there in the list, which is what makes the whole thing undoable. The share link never changes, so anyone holding it just sees the restored content.