How do you make you app compatible with an earlier iOS version. For example when I click SCM>Configure SCM for this Project At the bottom where it says Base SDK for all configurations, the only option is 4.2. Is there anyway to build it for 3.0 as well?
Deployment Target is what you want, not Base SDK. I suggest you read the iOS Application Programming Guide from the documentation which explains these basics.
Build app for earlier iOS version
Linear Mode
