iOS 17.2.1 update includes significant bug fixes and is recommended for all users. Interestingly, it is reported to have resolved the battery issue (rapid depletion under certain conditions) on some iPhones. The iOS 16.7.4 update, on the other hand, addresses the problem of not being able to reinstall deleted built-in Apple apps.
Which models received the update? iOS 16.7.4 is released as an update for older models such as iPhone 8, iPhone 8 Plus, and iPhone X. On the iPad side, iPadOS 16.7.4 is available for 9.7-inch and 12.9-inch iPad Pro models. iOS 17.2.1 can be installed on all models from iPhone XS and above.