Apple was working on a new approach to send alternate Security upgrades to iPhone and iPad customers even before the iOS 15 announcement, according to 9to5Mac. Later, the company stated that consumers who were not ready to upgrade to iOS 15 would receive patches for iOS 14, however this appears to no longer be the case. For whatever reason, Apple has reversed course and is no longer allowing consumers to continue on iOS 14 with Security updates.
Instead, it has reverted to the old manner of updating, in which customers are required to install the most recent version of the operating system (iOS 15) in order to receive Security updates. The modification was applied with the release of iOS 15.2 in December 2021, as we mentioned earlier today (via GitHub). On October 26, 2021, Apple published iOS 14.8.1 for devices not running iOS 15, but the update is no longer available.
Apple released iOS 15 adoption stats for the first time earlier today, and they’re fewer than normal — maybe as a result of allowing people to continue on iOS 14. Although the business has not acknowledged or denied anything, it is possible that it has reconsidered its decision to provide alternate updates to those who do not wish to upgrade to the most recent version of iOS.