Just before the release of System Center 2012 R2 which is expected half of October, Microsoft releases CU3 for System Center 2012 Configuration Manager SP1. This update adds support for Windows 8.1-based client computers in Microsoft System Center 2012 Configuration Manager Service Pack 1. Windows 8.1 is added to the supported platform list for the following features:
- Software distribution
- Software update management
- Compliance Settings
In addition to support for Windows 8.1 and Windows server 2012 R2 this cumulative update provides fixes for the following components:
- Operating System Deployment (OSD)
- Windows PowerShell
- Software Distribution
- Windows Intune
- Endpoint Protection
- Software Updates
For detailed information see KB article http://support.microsoft.com/kb/2882125
The cumulative updated can be downloaded here.
As mentioned it might worth considering to skip the installation of CU3 since R2 will be released October 18th 2013.