Apple is set to unveil its latest iOS update, iOS 19, at WWDC in June. However, this major OS overhaul may pose compatibility issues for existing iPhone models. According to a reliable source, the following devices will support iOS 19:
iPhone 11, Pro and Pro Max
iPhone 12, 12 mini, Pro and Pro Max
iPhone 13, 13 mini, Pro and Pro Max
iPhone 14, 14 Plus, Pro and Pro Max
iPhone 15, 15 Plus, Pro and Pro Max
iPhone 16, 16 Plus, Pro and Pro Max
iPhone SE (2nd gen and 3rd gen)
In contrast, older models like the iPhone XR, XS, and XS Max are not expected to be compatible. This would mark the first time Apple has dropped a phone from an iOS update since iOS 17. Although some older models will still receive security updates, those with incompatible devices may want to consider upgrading to a newer model to take advantage of all the new features.
Note: The information about iPadOS 19 dropping support for the 7th-generation iPad is not mentioned in the simplified article as it was not present in the original text.
Source: https://uk.pcmag.com/mobile-phones/157377/rumor-if-you-have-this-iphone-it-may-not-work-with-ios-19