Upgrade to McAfee ePO 5.10.x Upgrading your existing McAfee ePO environment involves careful planning and preparation for a smooth and successful process. The McAfee ePO upgrade process consists of three phases: Phase 1: Before you upgrade — Check that your McAfee ePO server meets all requirements, download the McAfee ePO software and tools, and back up your databases and directories. Phase 2: Day of upgrade — Stop Agent Handler and McAfee ePO services, start and complete the InstallShield Wizard, and upgrade Agent Handlers. Phase 3: After you upgrade — Complete the post-upgrade checklist and migrate SHA-1 certificates to SHA-2 or higher. McAfee ePO cumulative updates McAfee ePO 5.10.0 introduces a new strategy where we release cumulative updates instead of patches. Updates address product defects and often introduce new features. Because updates are cumulative, you only need to apply the latest available update.