>Starting April, 2020, all iPhone and iPad apps submitted to the App Store will need to be built with the iOS 13 SDK or later. They must also support the all-screen design of iPhone XS Max or the 12.9-inch iPad Pro (3rd generation), or later.
If you want to properly support iOS 13, that also means implementing dark mode support and breaking your application delegate apart to a scene delegate for multiple instances. In addition to the notched screen "safe area" changes that most developers have probably caught up on by now but are becoming mandatory.
Previous years it's meant supporting flexible sizes for new devices, sizes for split screen multitasking, drag and drop, siri intents, adding @3x retina assets, changing out UIWebView to the (not directly compatible) WKWebView, and a million other things.
For a simple app with minimal support for iOS's growing featureset, maybe some years you can get away with loading it into this year's XCode, clicking the automatic code update button, and compiling. But polished iOS apps put a lot more work into keeping up.
I don't have any knowledge of how Android compares, but iOS is definitely a moving target and Apple isn't afraid of deprecating things or mandating support for newer features.
>Starting April, 2020, all iPhone and iPad apps submitted to the App Store will need to be built with the iOS 13 SDK or later. They must also support the all-screen design of iPhone XS Max or the 12.9-inch iPad Pro (3rd generation), or later.
If you want to properly support iOS 13, that also means implementing dark mode support and breaking your application delegate apart to a scene delegate for multiple instances. In addition to the notched screen "safe area" changes that most developers have probably caught up on by now but are becoming mandatory.
Previous years it's meant supporting flexible sizes for new devices, sizes for split screen multitasking, drag and drop, siri intents, adding @3x retina assets, changing out UIWebView to the (not directly compatible) WKWebView, and a million other things.
For a simple app with minimal support for iOS's growing featureset, maybe some years you can get away with loading it into this year's XCode, clicking the automatic code update button, and compiling. But polished iOS apps put a lot more work into keeping up.
I don't have any knowledge of how Android compares, but iOS is definitely a moving target and Apple isn't afraid of deprecating things or mandating support for newer features.