Over the years, Apple has been quite generous with software updates, and he has been keeping older iPhones gently for years now. In 2018, the iPhone XR and the iPhone XS have had a good race, with updates to iOS 18. However, according to 9TO5MAC, iOS 19 will be the first time that they will not obtain an update.
This comes from a source known on X whose apple leaks have a good position. This would mean that Apple finally says goodbye to the iPhones performing the Bionic Puce A12, which already has some generations.