Updating iOS devices, such as iPhones and iPads, is essential to access new features, improve security, and enhance performance. Before updating, ensure all data is securely stored in the cloud, check for adequate storage space, and connect to a stable Wi-Fi network. Steps to update include navigating to Settings > General > Software Update, selecting Update Now or Install Now, and confirming the latest iOS version after installation. Automatic updates can be enabled by toggling on iOS Updates in the Software Update section. It's recommended to update regularly, but compatibility with legacy devices should be checked before updating, as major updates may cause app crashes or unexpected bugs. The latest version of iOS at the time of writing is 18.2, and a broad compatibility list for this version is available, including support from iPhones 15 Pro Max, 14 Pro Max, 13 Series, iPhone SE (2nd and 3rd generation), and iPads such as iPad Pro, Air, and Mini.