I have five devices. Half of them have IOS 10 the others Have IOS 9.3.5 . My problem is my Ipod touch 5th generation can not get the new ITunes format (songs organized by artist alphabetically). If I take the ipod touch in my car, I won't switch focus because of the fact that we because we have older devices I have memorize 2 different ways and that can get cumbersome.