Missing iOS 9 features that should have been there a long time ago

"iOS 9 is an incremental update to iOS 8 which focuses on improving performance and stablizing the user experience rather than revamping the user interface. A week after iOS 9 was released, Apple started rolling out two swift mini-updates, iOS 9.0.1 and iOS 9.0.2, in order to fix bugs and issues that users had been having with the new OS."