After re-installing my OS and restoring data, there is a software update for El Capitan public beta... But I do not want the public beta. I used to be in public beta but I got out of it after the release. There's no option to get out of the public beta in the App Store preference pane probably because I already got out of it. I am using El Captian 10.11.3; is this the latest version or no? How do I skip updates?