Apple 's latest operating system for iPhones and iPad was released recently . • iPhone 4 : iOS 7 is available for some older devices , but not all features will work . A new OS can fix bugs or slow down older devices . Unless you are eager and tech - savvy , you probably should wait to update .
Apple 's latest operating system for iPhones and iPad was released recently . iOS 7 is available for some older devices , but not all features will work . A new OS can fix bugs or slow down older devices . Unless you are eager and tech - savvy , you probably should wait to update .