Confluence stores and allows viewing all versions of any page or attachment. Versions can be viewed in attachment list found on each page. List allows viewing modification date for each version as well as a user who modified the attachment.

Enterprise Bridge allows copying modification history of attachments as file versions replicating in SharePoint all modification history for each file.

Each version gets its author, last editor, creation and update time exactly as they appear on source server. File versions also appear as separate links on the list of attachments inserted into migrated pages.