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Can anyone please explain the concept of iOS deployment target build setting in iOS project. I have an application which I needed to support from iOS 4.3 up till iOS 6.0. What should be my iOS deployment target?
When I set this to 4.3 it compiles well but if I change it to 6.0 I see lot of compilation warnings for deprecated methods. What is the ideal way of handling this. Shall I remove all the warnings I see on iOS 6.0 keeping in mind that it still supports 4.3 targets?
Deployment target is the earliest version of iOS that can run your application. So if you want to support from iOS 4.3 to 6.0 you should have Deployment target set to 4.3 and Base SDK to iOS 6.0.
Deprecated methods are methods that will no longer be supported in future versions of the SDK. These methods give a warning and could lead to unsafe code, because there is a better approach. Its encouraged not to use them. Sometimes, you need to run one method or other depending on the version of the OS, but this becomes out of the scope of the question 😉
As a conclusion, the ideal depends on your product, but keep in mind that iOS users adopt new versions of the OS quite early. So I would go from iOS 5.0 to 6.0, but this is my personal opinion 😉