Apple posted in its developer news - "starting May 1, new apps and app updates submitted to the App Store must be buit for iOS devices with Retina display and iPhone apps must also support the 4-inch display on iPhone 5."
Sure we have to use iOS 6 to use autoLayout for supporting iPhone 5 and previous devices .. But is there any other way ?
If it is so, then what is the minimum iOS version app store will support starting May 1 ?
You do not need to use auto layout to support the iPhone 5.
On May 1st you can still support iOS 4.3 or later. You can still support any device that runs iOS 4.3 or later.
The requirement is that your app must have full retina support (@2x images) and you must support the 4" screen of the iPhone 5 and 5th gen iPod touch (no more letter boxing).
So basically very little is changing. Apple is just requiring people to support newer devices.