About this release

This document contains important information about the current release. We recommend that you read the whole document.

Release build — 5.9.1


This release adds enhancements and fixes problems that were reported in the previous version.

Rating — Mandatory

Mandatory Critical High Priority Recommended

  • Required for all environments.
  • Failure to apply Mandatory updates might result in a security breach.
  • Mandatory patches and hotfixes resolve vulnerabilities that might affect product functionality and compromise security.
  • You must apply these updates to maintain a viable and supported product.

For more information, see KB51560.

Upgrade paths

At the time of the current release, you can upgrade these versions to McAfee® ePolicy Orchestrator® (McAfee® ePO™) 5.9.1:

  • McAfee ePO 5.1.3
  • McAfee ePO 5.3.1
  • McAfee ePO 5.3.2
  • McAfee ePO 5.3.3
  • McAfee ePO 5.9.0

For information about supported upgrade paths for McAfee ePO, see KB86693.

Updated components

The current release upgrades these components.

  • Apache Http Server 2.4.28
  • Apache Tomcat 7.0.82
  • Java Runtime 1.8.0_152
  • OpenSSL 1.0.2l

Supported platforms

The current release is compatible with these platforms.

Operating System and Agent Handler Support

  • Windows 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016


  • Microsoft SQL Server and SQL Express Edition 2008 SP1
  • Microsoft SQL Server and SQL Express Edition 2008 R2
  • Microsoft SQL Server and SQL Express Edition 2012
  • Microsoft SQL Server and SQL Express Edition 2014
  • Microsoft SQL Server and SQL Express Edition 2016

Browser Support

  • Internet Explorer 8.0 or later (including full support for compatibility mode)
  • Firefox 24.0 or later
  • Chrome 30.0 or later
  • Safari 7.0 or later
  • Microsoft Edge (Spartan browser)
Note: This version of McAfee ePO requires enabling TLS 1.1 or 1.2 support on your browser.

For information about supported platforms, environments, and operating systems for McAfee ePO, see KB51569.