Release Notes M021 > Release Requirements and Installation
  
Release Requirements and Installation
Overview
This release addresses issues in the Arbortext Editor and Arbortext Publishing Engine 7.1 M020 stream. See Updates in this Release for a list of included fixes.
The release can be installed standalone or to update Arbortext Editor and Arbortext Publishing Engine 7.1 M020 on the following platforms:
Arbortext Editor — Windows 7, 8.1, 10, Server 2008 R2, Server 2012 R2, or Server 2016
Arbortext Publishing Engine — Windows Server 2008 R2, Server 2012 R2, or Server 2016