Can I Choose Which iOS Update to Install?
Contents as Reported by Zdnet, iOS Users Now Can Choose Whether to Implement Software Updates Automatically or to Download the Updates for Later Installation...
As reported by ZDNet, iOS users now can choose whether to implement software updates automatically or to download the updates for later installation at more convenient times.
Can you choose which iOS to update to?
By alt-clicking on the update-button in iTunes you are able to select a specific package you want to update from. Select you downloaded package and wait until the software ist installed on the phone. You should be able to install the most recent version of iOS for your iPhone model this way.
How do I install a specific version of iOS?
Select the “Devices” tab, and you will see the option to change the iOS version for that device. Apple recommends (as do I) that you have separate devices for each iOS version you wish to test on. Therefore, one iPhone per version. Then you can easily test your code on all the different versions of iOS.