iOS compatibility

Question

I'm releasing an iPhone app and want it to have the largest possible audience. What version of iOS should I compile it with?

The app doesn't use any new iOS 4 capabilities

Answer 1

You could set your "Base SDK" to the latest (iOS 4.2) and your "iOS Deployment Target" to iOS 3.0. Do make sure to check that you aren't using code that's not available on iOS 3.0.

Personally, I think it'd be okay to just set it to 3.1.3...

EDIT I haven't tried it yet but it looks like this would be a useful question to favorite.. finding unsupported apis with os version