(Image credit: Future) WWDC 2026 is fast approaching, and with it will come our first glimpse at iOS 27 . The updated operating system will officially arrive around the same time as the iPhone 18 Pro , and will power all the best iPhones money can buy. But there will still be some iPhones that are left behind, stuck running iOS 26 forevermore. Apple offers some of the longest software support of any smartphone , but it doesn't offer indefinite support. There comes a point where older models get left behind and miss out on all the new features and upgrades Apple has developed. This typically happens after six or seven years, though Apple has never imposed any hard-and-fast timelines on when support will officially end. We can, however, make a pretty reasonable guess about which phones will be losing support this year. Here's which iPhones should get the upgrade to iOS 27 and, perhaps more importantly, which ones may not. Which phones already run iOS 26?…