According to data from internet research firm , Apple relied on its content delivery network along with Akamai and Limelight to handle the rollout of iOS 8 publicly this week (via ). The release of iOS 8 caused web traffic in some areas as millions of iOS users rushed to update their iOS devices. Apple has not commented publicly on its content delivery network, but the company reportedly has been working on the network for . The CDN was believed in the US and Europe in July of this year when Apple used the network to deliver smaller OS X updates. In the future, the CDN likely will be used to delivery software updates, such as the upcoming OS X Yosemite release, to customers worldwide. Apple also is expected to gradually migrate its iTunes and App Store away from Akamai and other Level 3 CDNs as it strives to deliver data reliably to its customers by bringing this content delivery under its direct control.