An official announcement of new iPhones usually means a release date for the latest version of Cupertino's mobile operating system as well. Today was no different as Apple announced that iOS 9 would be available as a free download September 16th. When it arrives next week, you'll be privy to new features like a new and improved Siri, system-level security settings and split-screen multitasking on the iPad (hello, iPad Pro). Native apps like Maps (now with transit info), Notes and others have also been refreshed, so if you haven't been adventurous enough to test drive the public beta, there will be a load of new stuff for you to try. And there's that brand new News app too, serving up personalized content to your devices for reading on the go.

FYI, Apple today released the final developer builds of iOS 9, WatchOS 2.0, OS X 10.11, and Xcode 7. Developers can use these penultimate versions of the new operating systems to test the compatibility of their apps. Apple will deliver the final, consimer versions of iOS 9 and WatchOS 2.0 on Sept. 16. OS X 10.11 El Capitan will follow on Sept. 30.