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I'm sure many others have far more experience than I do, but here's my thoughts. I think there's little value in dealing with non-ARC at this point. ARC has bee
by michaelmior 13y ago
I'm sure many others have far more experience than I do, but here's my thoughts. I think there's little value in dealing with non-ARC at this point. ARC has been supported since iOS 5, which is available for the 3GS and up. I no longer do app development full time, but as of last year, a very tiny percentage of our users were on iOS 5.
Most of the new features in iOS 6 that would be used by libraries are developer conveniences and can be ignored with a bit more effort. (e.g. Auto Layout, UICollectionView)
As far as different versions of Xcode, there's really no reason for developers not to use the latest in my experience, so targeting that is likely fine.