What's new in 10.6.5 release Update releases can update platform support. Support for macOS Catalina 10.15 This release supports the operating system macOS Catalina 10.15. Note: You must approve McAfee kernel extensions to use all features of the product. For more information about approving McAfee kernel extensions, see McAfee Knowledge Base article KB89728. Note: The recent changes in privacy configuration on macOS restrict McAfee Endpoint Security for Mac Threat Prevention from protecting your system fully. You must provide full disk access to McAfee processes as described in the McAfee Knowledge Base article KB91109.