On 30 Sep 2012, at 3:28 AM, "Kiran K . Koduri" <kiran.kod...@moschip.com> wrote:

> I am new to iOS, my qusetion is if i compile my application on iOS 4.2, thus 
> this application works on iphone or ipad with iOS 6.

The short answer is yes, your application built against the iOS 4.2 SDK should 
work on iOS 6. It can't use iOS 6 features (I simplify), but it should work no 
less well.

However, you may have relied on behavior that the API didn't promise, and that 
the newer OS changed. Apple goes to surprising lengths to make sure that 
doesn't happen, but it's possible. Or the later OS may have a bug that your 
code triggers. So you are not excused from testing your app on an iOS 6 device.

Is there some reason you can't build against the iOS 4.3 SDK?

        — F


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