Step 1: From the Quick Launch bar, open the list or library.
Step 2: Right click on the space between the item or document name and date, and from the menu, select Version History. To see Version History, you may need to scroll the menu.
Step 3: In the Version History dialog, hover next to the version you want, and to get a list of options, on the right side, select the down arrow. Select Restore.
Step 4: To restore the current version as the latest version, select OK.