Just drop you a quick line support for iOS 8 is now available for System Center 2012 R2 Configuration Manager! Support for iOS 8 on System Center 2012 R2 Configuration Manager was announced recently by the Configuration Manager Team but finally comes down to your Configuration Manager instance.
Standalone Windows Intune was already supporting iOS 8 from day 0 when iOS 8 was released on September 17, 2014.
The new extension adds support for iOS 8 platform and merges the current iOS 7 extension. This updated extension adds support for iOS 8 devices. New features include: iOS 8 added to the supported platform list, configuration settings to manage and assess the compliance on iOS 8 devices, company resource access on iOS 8 devices and the ability to define an applicability rule for applications, allowing you to deploy applications to iOS 8 devices.
To install the updated version, select the iOS 7 and iOS 8 Security Settings extension from the list and then click Enable. You do not need to disable the older version of the extension before you enable this updated version. As the updated version is installed, the configurations you previously made for the extension are retained. Once the installation is complete, only the most recent version of the extension will display in the console.
After enabling the new extension your Configuration Manager instance is able to manage iOS 8 devices.
For information on how to install extensions, see Planning to Use Extensions in Configuration Manager.