Apple’s next-gen mobile operating system, iOS 8, will be available to download on Sept. 17.

The new OS will work on the iPhone 4s, iPhone 5, iPhone 5c, iPhone 5s, iPod touch 5th generation, iPad 2, iPad with Retina display, iPad Air, iPad mini, and iPad mini with Retina display.

You can check for the update on Sept. 17, probably around mid-day Eastern time, though it’s sometimes best to wait until the evening since Apple’s servers are often hosed in the first few hours.

With iOS 8, you get iCloud Drive, which will allow you to access your files across devices. Just drag and drop a document into your iCloud Drive folder on a Mac running OS X Yosemite or a PC running Windows 7 and higher, and the document will be accessible on iCloud-enabled apps via iOS. You get 5GB for free, 20GB for $0.99 per month, 200GB for $3.99 per month, and 1TB for $19.99 per month.

Several updates are expected in October, including access to new mobile payment system Apple Pay, as well as SMS Continuity, so you can send and receive messages on your iPad or Mac, regardless of whether your friend has an Apple device or not. iCloud Photo Library will also be available as a beta, Apple said.

Apple’s new iPhone 6 and 6 Plus smartphones will come pre-loaded with iOS 8.

For more, check out 32 Hidden Features in Apple iOS 8 and Can Apple’s iOS 8 Protect Your Privacy? Also see our roundup of 8 Eye-Catching Features in Apple’s iOS 8 in the slideshow above.