There's a rumor going around that the iOS 13 update will not support the iPhone 6, iPhone SE or the iPhone 5s. If the rumor is true, come September there will be a lot of phones that won't have the latest software. The rumor that comes via iPhonesoft who also alleges that the iPad mini 2 and the iPad Air will also not support the iOS 13 update.
The official date of the iOS 13 release will be announced on June 13.
— MacRumors.com (@MacRumors) May 10, 2019