Since iOS 7 had been released a few months ago, lets say I haven't made any changes to make my app compatible for iOS 7. So, now(Jan 2014) can I upload my app in the Appstore and make it compatible for iOS 6 alone?
Also, can I make my app compatible for a particular iPhone Device alone(say, iPhone 4)?
If I do so, will Apple approve my app?
1st "Starting February 1, new apps and app updates submitted to the App Store must be built with the latest version of Xcode 5 and must be optimized for iOS 7" - Appel Doc.
2nd: You can not make app compatible for a particular iPhone Device alone (say, iPhone 4), but you can make app only for iPad.