Software will work on iPhone 5 and above
iOS 10 arrives on 13 September
Apple's iOS 10 software update will be made available for download on 13 September, three days ahead of the iPhone 7 release.
The firm announced during Wednesday's keynote that iOS 10 will be available on existing devices from next Tuesday, along with watchOS 3, and promptly seeded the Gold Master release to developers.
iOS 10 will run on the iPhone 5 and above, which means that those still using an iPhone 4S and iPhone 4 will be left behind.
On the iPad side, iOS 10 will work with all iPad Air and iPad Pro models, the 4th-generation iPad, and the iPad mini 2 and later. iOS 10 will also work with Apple's sixth-generation iPod Touch.
iOS 10 was announced at WWDC in June and includes a major Siri upgrade. Apple has released new APIs so that developers can build it into third-party apps. This means you can order an Uber by barking at your phone, for example, or get the digital assistant to fire up Spotify playlists.
The iMessage app has had a huge overhaul to become more interactive and media-heavy, so you can do things like send animated wallpapers and draw images.
3D Touch on the lock screen will allow you to open and interact with apps via notifications without having to actually open the app in question. The phone will use the fingerprint scanner to ensure that it's you.
Another nice touch is Rise to Wake, which will show the time and any on-screen notifications simply by lifting the phone, rather than having to press the home button, which can often unlock the phone by accident.
However, this is compatible only with the iPhone 6S, 6S Plus and SE, along with the iPhone 7 and 7 Plus.
Notifications will show more information on the lock screen, potentially removing the need to open them to find out more.
Also, you'll be able to remove stock apps on iOS for the first time, which will no doubt be welcome news to many.
Once it's available, you'll be able to install iOS 10 by heading to Settings > General > Software Update.