There are some posts in the forum where member have tried to upgrade and having issues that are traced back to them trying to upgrade with the full version. The reason is the post is about a security upgrade to Dolphin but the bold link that is first presented is to the full version of Dolphin. I recommend removing the link to the full version, if a person has not installed Dolphin then they will be grabbing the full version from the download links on the home page.