iphone - How to get older SDK and do I need to? -


The OS 10.6 on my Mac. I started with the iPhone SDK for Snow Leopard, which is from SDK 3.0 to 3.1.2 Makes for I'm ready to submit my app in the store. I think old iPhones should also use it. I can not find Apple Link for SDK 2.2. Only 3.1 Link to SDK.

Do I need to release an app created with 2.2? If this is the case then where can I find this?

Can the iPhone users update the OS on their phones?

Thank you,

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