Microsoft has shipped Hotfix Rollup 2 for Forefront Protection 2010 for Exchange to provide a series of product enhancements and new features. For a complete list of the new features and enhancements included in this rollup, click here

The hotfix has to be requested and downloaded. Request it here

Rollup2 FPE

Service restarts may be necessary and hence plan well before applying this hotfix rollup.

http://www.howexchangeworks.com/2010/12/hotfix-rollup-2-for-forefront.html