SharePoint Folder version history

Hi Kevin,

If you only want to check a specific folder, use the first method in my preview post to create a alert on the folder, you will know who modify the folder through alert email. 

If you have a lot folders need to be checked in a site collection, I'm afraid you need admin permission to view audit log in Admin Center to find who revised the folder at once.

Regards,

Eric

Hi Kevin,

Actually, there is no feature named folder version history in SharePoint Online, as it is comprised by all the changes record of the files in the folder. 

But I have some workarounds for you track changes for a folder. 

1. Create an alert to get notified when a file or folder changes in SharePoint so that once the folder has been changed, it will send you a notification email and you can create a rule for collect the information.
2. View audit log reports. If you are the admin of organization, You can track change for a whole site collection in Admin Center, you can filter out the information you need.
3. File activity in a document library. If the folder in a document library, you can use detail pane to view all the activities in this library but not a spesific folder. 

Regards,

Eric