What happens if I upgrade to a plan with longer version history? To view the version history of all the folders in your Dropbox account:
To view the version history of a folder and its subfolders: Learn how to view and restore previous versions of a Paper doc. However, there are several add-ons that extend your version history.
How far back you can view and restore is referred to as version history and depends on the Dropbox plan you have.
You can view and restore previous versions of files and folders in your Dropbox account.