There are a bunch of new features aimed at integrating both types of software more closely, such as the ability to answer phone calls from your Mac desktop and seamlessly pick up from where you left off in Safari.
But not all of Apple’s devices will get the update.
Chances are, if you’ve bought an iPhone or iPad within the past couple of years, you’ll receive the upgrade. But if you’re a legacy user still running on an iPhone 4 or original iPad, you’re out of luck.
Here’s the full list of devices that will support iOS 8 and OS X 10.10 Yosemite.
- iPhone 4S
- iPhone 5
- iPhone 5C
- iPhone 5S
- iPod Touch 5th generation
- iPad 2
- iPad with Retina Display
- iPad Air
- iPad Mini
- iPad Mini with Retina Display
OS X 10.10 Yosemite Developer Preview System Requirements: