This release note provides information about new features, enhancements, and fixes in ArcSight ESM version 6.0c. This version introduces the Correlation Optimized Retention and Retrieval (CORR) Engine for improved performance over Oracle storage. It also includes a new streamlined Management Console interface. While an in-place upgrade is not supported, the release provides a tool to migrate resources from a legacy ESM installation to the CORR-based version.