Content types that macOS Server caching and macOS caching support

You can use macOS Server caching and macOS caching to speed up your Apple software downloads that are distributed over the Internet. Caching stores local copies of this the software on your server, so the downloads are faster for connected clients.

Content types supported by the Caching service

macOS Server and macOS include built-in support for caching the following software.

iTunes and iBooks

  • iTunes 11.0.4 and later (OS X and Windows versions)
  • iOS app purchases and app updates*
  • iBooks Store content (iOS 6 and later, and OS X Mavericks and later)

*iOS updates downloaded using iTunes are not cached. iOS updates delivered "over the air" are cached instead.


  • macOS updates
  • Mac App Store (OS X Mountain Lion v10.8.4 or later is recommended)
  • Other software updates distributed by Apple (including updates to iTunes for macOS and printer drivers)
  • GarageBand downloadable content
  • Third-party apps from the Mac App Store and their updates
  • iCloud data caching (photos and documents) for OS X El Capitan v10.11 and later

iOS 7 and later and Apple TV

  • iOS updates (over the air)
  • Apple TV updates (over the air)
  • iOS apps, Apple TV apps, and app updates
  • On-demand resources support for iOS 10 and later and tvOS 10 and later.
  • iCloud data caching (photos and documents) for iOS 9 and later
  • iTunes U course materials from the iOS App Store and iBooks Store, as well as uploaded instructor materials such as audio, video, iWork, and iBooks Author files
  • Certain mobile assets, such as Siri high quality voices, language dictionaries, and more

Country and region restrictions

  • Not all content is cached in all regions. 
  • As of December 2013, iTunes downloads are not cached in Brazil, Mexico, China, or Portugal. iBooks downloads are not cached in Canada.
  • iTunes downloads might not be cached if a client's IP address isn't associated with your iTunes Store region.

Learn more

Learn more about the Caching service and client caching.

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners.

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