Apple took the wraps off its iOS 9 mobile operating system at the WWDC event on Monday. It boasts some impressive features such as an improved battery life, multi-tasking functionality, a News app, and improvements to Siri, Apple Pay and Maps. Some of the Apple fans might wonder if their older iPhones and iPads will be compatible with the iOS 9. Should you upgrade your grand old iPhone 4S to iOS 9 when it arrives later this year?

iOS 9

iOS 9 to support all devices compatible with iOS 8

Apple has historically dropped older iPhones and iPads from the list of devices supported by the latest iteration of iOS. Last month, ValueWalk reported that the Cupertino-based company would change that tradition by making iOS 9 compatible with even older devices. Turns out, the reports were true. The iOS 9 will be compatible with all the devices supported by the iOS 8.

And the upgrade process will be a lot easier this time because Apple has dramatically cut down on the amount of storage space you need to download it. There were rumors that the iPad 2, which was launched in early 2011, may not get the new iOS. The second-generation iPad is still supported on iOS 8, but iPad 2 users suffered speed issues with iOS 8. The device will be supported by iOS 9, but only time will tell how sluggish the new OS makes it.

iOS 9 upgrade to be hassle-free

Here is the complete list of iPhones, iPads and iPods supported by the iOS 9:

  • iPhone 4S, iPhone 5, iPhone 5S, iPhone 5C, iPhone 6, and iPhone 6 Plus
  • iPad 2, iPad 3, iPad with Retina display, iPad Air, and iPad Air 2
  • iPad mini, iPad mini 2, iPad mini 3
  • iPod Touch (fifth generation)

The iOS 9 update file will be only 1.3GB in size, making it easier to upgrade even for devices with less internal memory. It’s unclear whether the rumors of a core version of iOS 9 for older A5-powered devices are true. There were reports a few weeks ago that older iPhones and iPads will be supported by the new OS, but they will get a slimmer version which lacks some of the modern features.