@Miroslav Glavic -This feels like Matt Mullenweg wants to tell me when I can wipe my rear end. Sometimes it is not necessary to wipe my rear end.

Should I even ask when it's not necessary to wipe your rear end? lol

As for Opting In or Opting Out. Initially, I was for Opting In so as the decision would not have been made automatically without my knowledge. However, if I open my mind up to the bigger picture, I think having folks Opted in automatically on new and existing installs is the better way to go. Overall, I think having automatic upgrades for the majority of users is a good thing the more I think about it, especially for those that choose not to upgrade anyways.

However, I still would like a line I could put in WP-Config to turn off automatic Core Upgrades.