I have both iPhone 6s Plus and iPad Air on 9.02 only my IPad is JB. I would like to update my iPhone to IOS 10 and leave my iPad on 9.02 I use my photo stream instead of the iCloud Photo Library. iOS 10 got rid of photo stream so how will I be able to use the my photo stream on my iPad? I have other I devices like 4s. If I update to 10 how will they stream across all of them if my iPhone won't have that option when I take a photo?