I was talking to Apple Care today about my iMac problem of recognizing the trackpad but it wouldn't let me click an icon to move forward. We fixed that issue and that is not what I am posting about. Toward the end of the fix, she asked me what version I had as an OS. I told her 10.10.4 and I had used Yosemite since the first beta release and had uploaded all of the updates as they were released. She then said I did not have the latest version of Yosemite and Apple Care was only for OS that was not in beta. It was my understanding in the past, before today's phone call, once the update was performed after the official release of Yosemite, then I would no longer have the beta version. When I look at my "about my mac", it shows the version as 10.10.4 and no longer has the series of numbers and letters after it. She suggested I needed to do one of two options. 1. Go back into TM before the beta version and do a reinstall. 2. or ... reformat my HD and do a clean install of Yosemite. Is she right? If so I will never do another beta version again and told her that. I've had nothing but problems with Apple mail and Google since the upgrade. Probably Gmail's fault since they have been changing so many of their settings. I don't remember the date I went to Yosemite beta, so I have no idea how far back to go in TM. I do the automatic update with TM but have really never understood how to restore specific files. I do know that TM basically overwrites files with basically adding only new files. I really don't want to reformat my HD and then restoring from TM. Would I restore the old beta version of Yosemite when doing that?