The revision history is not supported in Airtable API. Due to this limitation, it's not possible for third-party developers to access that data. It's exclusive to the Airtable official app. Edits made by external users are always showing from one user, regardless of who makes them.
Edits made through miniExtensions show up as "You edited via API." Can I get a more accurate history in the record "activity"?
Updated over a week ago