Does iPad Retina still require specifying iOS SDK version in AIR 3.7's ADT?

According to this page you have to specify iOS 5.1 SDK in ADT's command line when you want to support retina screens:

http://www.richardlord.net/blog/using-the-ipad-retina-display-with-adobe-air

Is this still true for AIR 3.7 or does it now default to iOS 5.1 SDK and works for retina screens without specifying any extra arguments in ADT?

Thank you!