At Monday's WWDC keynote, Apple announced a flurry of fun new features. With OS X Yosemite and iOS 8, your Mac and iPhone are closer than ever, opening the door to the Future of Computing. Too bad iPhone 4 users won't get to enjoy any of it—and neither will anyone with an even older phone.

The oldest phone that will run iOS 8, when it's released to the general public this fall, is the iPhone 4S. And based on how poorly iOS 7 performed on older iPhones, you can expect some lag running iOS 8 on a 4S. Regardless, it won't work on an iPhone 4 at all. Of course, if you're running iOS 7 on a 4, you were already way behind. And after all, this is how tech works. Welcome to the upgrade StairMaster. So RIP iPhone 4. It was a good run.