The phrase identifies a specific set of Apple-manufactured hardware products capable of running Apple’s fifteenth major operating system release for iPhones and iPads. These products meet the minimum hardware and software prerequisites necessary to properly install and utilize the operating system’s features. For instance, a user with an iPhone XS can download and install the designated operating system, whereas owners of older models, such as the iPhone 6, cannot.
Compatibility determines access to software updates, security patches, and new functionalities. Continued support ensures device longevity, safeguards against vulnerabilities, and allows users to benefit from enhancements in user experience and application performance. The evolution of mobile operating systems and hardware capabilities has resulted in devices being gradually phased out of support as newer iterations demand increasingly advanced processing power and memory.