IOS 15 doesn't have a very high upgrade rate, which apple clearly can't tolerate for the nature of closed systems, so something had to be done.
Apple's patience with those shunning iOS 15 appears to have worn thin over the past few months, and the company is now pushing iOS 14 users to update. The iOS 15 update is no longer available on devices running iOS 14. Software Update & RDquo; In a footnote at the bottom of the section, Apple also stopped releasing iOS 14 security updates.
Apple released an update to iOS 15 this week, and unlike in the past, it has no option to re-launch iOS 14 -- in other words, to force users to upgrade to iOS 15.
What to make of this, for example, is that Apple released iOS 14.8.1 with a security update in October. On iphones still running iOS 14.8, the iOS 14.8.1 update is no longer available, and Apple only offers iOS 15.2.1 as an installation option.
IOS 15 is available on all devices capable of running iOS 14, and removing the option to stay on iOS 14 could spur people to upgrade. IOS 15 has now been installed on 72% of iphones in the last four years, which is a significantly lower adoption rate than we've seen with previous versions of iOS.