Apple iOS 18.3 is compatible with all iPhones that can run iOS 18. This means all iPhones from the iPhone XS onwards, including the second- and third-generation iPhone SE models.

Apple made waves when it rolled out iOS 18 in fall, bringing a host of AI-powered features to iPhones thanks to Apple Intelligence. Initially, you had to opt into Apple Intelligence features. The latest update,

Apple has officially released iOS 18.3, a major update that introduces new features, resolves bugs and addresses security concerns. The update, which became available on Jan. 27, can be installed on iPhones starting with the XS model and newer,