Some of the problems solved by Cumulative Update 4.
- Packages are listed as Unknown in the Content Status node of the Administrator Console.
- Internet-based clients cannot download content from an Internet-facing distribution point.
- Applications that use dynamic variable lists are not installed in System Center 2012 Configuration Manager
- Adding or deleting a deployment to a software update group results in policy evaluation for all deployments within the group instead of the deployment that changed.
- The content of a sequence or tasks that have changed after migrating from another site is not processed by child sites.
- This cumulative update adds support for Microsoft Application Virtualization (App-V) 5.0 Service Pack 2 (SP2).
For more information about CU 4 and to download it go here.