Rollback to a Previous Version
You have the opportunity to access and re-publish older versions, if necessary.
To rollback to a previous version of the page:
Navigate to the page whose versions you wish to view.
Go to the Info tab.
Click on the Rollback button in the History section.
The Rollback tree opens in the right-side of the screen. Select a version of the page from the Rollback To drop-down list.
Click Rollback to proceed with the changes. Your content has now been rolled back to the selected version of the page and is saved as a Draft version.
To publish the draft version, click Save and publish.