In iOS5 sdk, Compiler will take care of memory management (ARC). Suppose I had built my app using iOS 4.2 and had manually done all the releses. Now, If I am going to run that app on iOS 5, will compiler again try to insert its own memory management? In this case, won't it get crashed?
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Have you tried to run it in iOS 5.0? what happened then? – Krishnabhadra Nov 02 '11 at 11:57
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@Krishnabhadra I had written the code on xcode3.2.5/iOS4.2 and then, I tried running it using xcode4/iOS5.0 and it got crashed. – anshul Nov 02 '11 at 12:46
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No. You have to decide to use ARC. (Edit>Refactor>Convert to ARC). If you are not using ARC the compiler won't insert memory management code.
dasdom
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When you start new project using iOS 5.0 SDK, you now have an option to turn on/off ARC..If you are running an existing project which is designed using pre iOS 5.0 version, ARC automatically is disabled..See apple's documentation on transition to ARC
Warren P
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Krishnabhadra
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