Running Xcode 6 or Xcode 7 on OS X 10.10 or 10.11, is there a way to test my app on iOS 4/5/6?
Can older simulators work in these newer versions of Xcode?
If no to both, is there a way to make old versions of Xcode run on 10.10 and 10.11? Will they work?
I'm working on a project which has contractual requirements for supporting super old iOS versions. The app also has some users on those versions, so dropping support for them isn't an option at the moment.
Running Xcode 6 or Xcode 7 on OS X 10.10 or 10.11, is there a way to test my app on iOS 4/5/6?
Xcode 6 supports building for iOS 4.3 and later
Xcode 7 supports building for iOS 6.0 and later
Can older simulators work in these newer versions of Xcode?
No.
If no to both, is there a way to make old versions of Xcode run on 10.10 and 10.11? Will they work?
The earliest version of Xcode supported on 10.10 is Xcode 6
The earliest version of Xcode supported on 10.11 is Xcode 7
I'm working on a project which has contractual requirements for supporting super old iOS versions. The app also has some users on those versions, so dropping support for them isn't an option at the moment.
It is not possible to build an iOS app that supports iOS 4.2 with tools that are capable of building for the App Store.
If/when Xcode 7 is required, it will not be possible to build an app that supports iOS 5.x.