Be warned: anyone who upgrades their iPhone or iPad to iOS 12 no longer has the option to downgrade. It’s not possible to go back to any version of iOS 11. Not that there’s much reason to want to.
Apple has released iOS 18.0.1, iPadOS 18.0.1, watchOS 11.0.1, visionOS 2.0.1, and macOS Sequoia 15.0.1 intending to address iPhone touchscreen issues and other bugs. It still isn't clear how many ...