From https://docs.microsoft.com/en-us/DeployOffice/mac/update-office-for-mac-using-msupdate
"Microsoft AutoUpdate (MAU) version 3.18 and later includes the msupdate command-line tool. This can be used to start the Office for Mac update process, in addition to reporting the current AutoUpdate configuration. The tool is primarily designed for IT administrators so that they have more precise control over when updates are applied. Use the following steps to start using the tool"
Is anyone using this yet as a scripted way to update MSO2016? Perhaps similar to doing scripted updates for Chrome and Firefox? I was going to set up a test policy, triggered to run once per week. It seems to work as expected via command line and Unix command via Apple Remote Desktop. It even seems to delay the update of any apps that may be running and then installs once the app has quit. I have also added inventory collection for /Library/Application Support/Microsoft/ to be sure clients are running MAU 3.18 so policies can be scoped only to those where the msupdate commands will actually work.