Apple says 'app slicing' now unavailable for iOS 9 apps

The app slimming feature is not available because of a bug in iCloud

The 'app slicing' feature in iOS 9 that enabled developers to send optimally-sized variants of their apps to different devices is unavailable because of a bug in iCloud, Apple's cloud service for its devices.

Slicing is one of three components of Apple's app-thinning process that enables developers to install iOS apps by matching app delivery to the capabilities of the user’s particular device, with a resultant smaller footprint.

App variants created by slicing the app contain only the executable architecture and resources that the target device needs. Thus code designed for devices running 64-bit processors would not download to those running 32-bit processors. Image resources are also sliced by their resolution and device family.

The slicing feature for iOS is supported on the latest iTunes and on devices running iOS 9.0 and later, according to an Apple developer page. Otherwise, the App Store delivers universal apps to customers.

But on Thursday, Apple informed developers that app slicing is currently not available for iOS 9 apps because of an issue affecting iCloud backups created from iOS 9 where some apps from the App Store would only restore to the same model of iOS device.

"When a customer downloads your iOS 9 app, they will get the Universal version of your app, rather than the variant specific for their device type," it told developers.

Apple informed developers that app slicing will be re-enabled with a future software update. Apple's testing platform for developers, called TestFlight, will continue to deliver variants for internal testers.

The company rolled out iOS 9 about a week ago.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

John Ribeiro

IDG News Service
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?