I want to stress one really important thing here. The automatic background updates for WordPress are for minor updates only. We’re not talking about auto-upgrading people from 3.7 to 3.8, but just 3.7 to 3.7.1 – These are small, minor, updates. When someone comes to me and complains that major releases don’t always work, I have actually said, “So? We’re not talking about major releases.” And of course, “You are making good backups on these super important websites, right? Right?”