I saw a previous question similar to mine but no answer. I participated in the beta version of El Capitan I think last year. When the public release version came out I installed it and didn't discover that I was still using the Beta version until a month ago. I can't seem to find a way to do so. Apple tech support wants to charge me ridiculous $'s to help me with no guarantees. Can anyone send me to a site or tech paper or direct help to help get rid of the beta? I am unable to update from the app store. I am using a MacBook Pro (15-inch, Mid 2012). Thanks
GM is a Master update (the last one before the real thing). Your literature when participating in the beta testing has a paragraf how to go from beta to the final release.