Beware! Follow this method only when you have no bookmarks in your newer Opera,or else you will lose them. IF you have any bookmarks(in newer one),then follow the Method2
Method 1
Before you start installing higher version of Opera,open the older version of Opera and go to Help>About Opera...
Hi Guest we just wanted to alert you to a major change in the forum. We will no longer be allowing the posting of outgoing links. Please use the attachment feature to attach media to your posts.