(Computer World) – Over the last couple of years, iOS has rightfully come under criticism for being less than rock-solid stable. This year’s version appears to be aimed at offering better performance, increased stability and a more predictive user experience in which the operating system tries to anticipate user needs.
In addition, iOS 9 is packed with refinements and new features that try to anticipate and volunteer useful information to users based on what they’re doing, along with under-the-hood optimizations that should give iPhone users additional battery life. iPad users, especially those with newer iPads, should consider iOS 9 a must-have update, as it unlocks multitasking features that power users have wanted.
iOS 9 is the third version of iOS to feature 64-bit code; it supports Apple devices dating back to the iPhone 4S, all versions of the iPad mini and all iPads since the iPad 2. It also runs on the fifth and sixth generation iPod Touch.
For this review, I tested iOS 9 on an iPhone 6, an iPhone 5, an iPad mini and an iPad Air 2, with the bulk of my focus on the iPhone 6.