Apple has released iOS 27.1, but it is exclusively for the newly launched foldable iPhone Duo. The iPhone Duo comes with a version of iOS 27.1 preinstalled. However, during device setup, users must update to a newer build of iOS 27.1, which is available as an IPSW file. This update to iOS 27.1 includes only unspecified bug fixes. Notably, iOS 27.1 contains no security enhancements. Apple has also released the iOS 27.2 beta for all other compatible iPhone models. The iOS 27.2 Release Candidate is also compatible with the iPhone Duo. This move will ensure all iPhone models can upgrade to iOS 27.2 for uniformity. The exclusivity of iOS 27.1 to the iPhone Duo likely aimed to prevent leaks of its unique software features. iOS 27.2 is anticipated to be officially released next week.