What are all the difference between iOS3, iOS4 and iOS5?


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More Apple iOS Interview Questions

What major changes released in ios7, ios8, ios9+?

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How is it possible to improve battery life during execution of an application?

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Do you know any other changes to ios 7 since wwdc?

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What is a struct?

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What’s the difference between an “app id” and a “bundle id” and what is each used for?

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Is uikit thread safe?

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Explain difference between nil and nil?

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Difference between release and autorelease ?

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What is nsfetchedresultscontroller? How do you turn on content monitoring?

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What is the responder chain?

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What is the difference between developer and enterprise developer accounts?

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Explain keywords alloc and new?

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