Right on schedule, Apple has just started rolling out iOS 10 to all supported mobile devices out there - namely the iPhone 5 and newer, iPod touch 6th gen, iPad 4 and newer iPad Air and Pro models, and the iPad mini 2 and newer. The release of the company's latest operating system version comes three days before the new iPhone 7 and iPhone 7 Plus will begin shipping with it preinstalled.
iOS 10 comes with many new features. It has a redesigned lock screen, richer notifications, quick interaction with apps, expanded 3D Touch functionality, third-party developer support for Siri, a better keyboard, enhancements to the Photos app, extensions for the Maps app, a new UI for Apple Music and News, and a more powerful Home app. VoIP apps now get the same call screen as the Phone app, and the Messages app has received a host of new features - make sure to read through our comprehensive list of the biggest new things in iOS 10 in order to get a clear idea about everything that's baked in.
At the same time, Apple is also releasing watchOS 3 to existing Apple Watch units in the wild. This version will speed up app launch times on the wearable, and it comes with a new dock and a Control Center of its own. You can more easily switch watch faces, and you get an entirely new Activity watch face. There's also Activity Sharing built-in, and Apple Pay now works in third party apps.