About this release This document contains important information about the current release. We recommend that you read the whole document. Caution: We do not support the automatic upgrade of a pre-release software version. To upgrade to a production release of the software, you must first uninstall the pre-release version. This release includes the following: Package Version McAfee® Active Response Extension/Packages 18.104.22.168 McAfee Active Response Workspace 22.214.171.124 Active Response Server 126.96.36.199 Active Response Aggregator 188.8.131.52 Active Response Client 184.108.40.206 Active Response Client content data package 220.127.116.11 Supported platform, environment, and operating system Active Response 2.4.2 now supports macOS 10.15 Catalina. For a complete list of components, supported platforms, environments, and operating systems for Active Response, see KB84473. This release fixes problems that were reported in the previous version, provides support for fresh installation on McAfee® ePolicy Orchestrator® (McAfee® ePO™) 5.10.0 and a new version of McAfee Cloud Link. Rating — High Priority The rating defines the urgency for installing this update. High priority for all environments. Failure to apply a High Priority update might result in potential business impact. Most updates and hotfixes are considered High Priority.