Introducing iPadOS
THE ORIGINAL 2010
Pad ran iPhone OS 3.2, renamed iOS later that year with the release of iOS 4. Over time, as the entire family of iOS devices evolved, iOS on iPad gradually gained features not available on iPhone, such as picture–in–picture and multitasking options including Slide Over and Split View, added in iOS 9 in 2015, then drag–and–drop between different apps, introduced in iOS 11
