I think developers should be able to submit different versions for different iterations of iOS so they can ensure the old versions of their app receive what functionality updates they can. (3) is there any way to specify that whether old versions of an app are viable. (2) if there is any severe issue with last compatible version of application : how to remove it or upgrade it ? one is for old OS and second for new OS ? is there any way to submit different binaries to the App Store.
(1) How developer can upgrade the last compatible version of application. Now that older versions of apps are apparently getting resurrected, so how developer can manager last compatible version of application It is a potential problem for developers if Apple starts re-distributing old versions of apps that their creators thought were safely dead and gone from the App Store.
Apple is now displaying a message that allows users to download the " last compatible version" of an app. if device OS is not compatible with latest version of application. Then, try tapping the download cloud icon next to the app, in this location, to see if the small window pop-up prompt appears that states that there is an older version of the app that is compatible with your device. Apple offers the user the option to download an older version of the app that is compatible with the device.