Apple has already, in fact, put an end to 32-bit applications on its mobile devices with iOS 11, and after a while this change awaits the operating system macOS.
During one of the appearances at the developer conference for WWDC 2017 (Apple Worldwide Developers Conference), which takes place in San Jose from June 5 to 9, Apple announced that macOS High Sierra will be the latest release of macOS with support for 32-bit applications "without compromise ". Beginning in January 2018, new applications submitted for approval in the Mac App Store must be 64-bit, and by June 2018 64-bit must be all applications and updates submitted for approval in the Mac App Store. With the next MacOS High Sierra release, Apple will begin to "aggressively" warn users before disabling their support permanently. Recall, as the testers found, in iOS 11 you can neither install nor open 32-bit applications. At the same time, Apple has already started to prepare for this step quite a long time. For example, with the launch of iOS 10.1 in October 2016, the company began to warn users that the old application could slow down the iPhone, and with the release of the first beta iOS 10.3 in January 2017, the warning became even more serious – "this application will not be able to work with future versions of iOS." Support for 64-bit applications appeared in the iPhone 5s, released in September 2013. Since 2015, all new applications and updates should use a 64-bit architecture to get into the App Store. Thus, the remaining 32 applications were not updated for at least two years.