iOS 26 is not mentioned in the provided sources. However, based on the information given, it is likely that "iOS 26" would refer to a future version of the iOS operating system, similar to how "iOS 18" is a current stable version. iOS is a proprietary mobile operating system developed by Apple, designed for use on devices like iPhones, iPads, and iPod Touches. It provides a smooth user experience with strong security features and integrates well with other Apple products and services[1][2][3].