Microsoft has released the following KB article:
An anti-malware platform update for stand-alone Forefront Endpoint Protection 2010 clients is available from Microsoft Update
This article describes an anti-malware platform update package for Microsoft Forefront Endpoint Protection 2010 clients. This package updates Endpoint Protection client services, drivers, and user interface components.
Microsoft regularly releases anti-malware platform updates to guarantee consistency in protection, performance, robustness, and usability in a malware landscape that is constantly changing. This update package is dated August 2013.