Most current packages for Office 2016 for Mac
If you're an admin and want to update the computers in your organization with your existing software deployment tools, you can download and deploy the update packages for each application. To use Microsoft AutoUpdate, start an Office application, such as Word, and then choose Help > Check for Updates. Updates for Office 2016 for Mac are available from Microsoft AutoUpdate (MAU). For release information for Office 2019 for Mac, see the release notes and update history for Office for Mac.
For release information for Office for Mac, which is the version that comes with Office 365 subscriptions, see the release notes and update history for Office for Mac.For release notes for Office 2016 for Mac releases prior to September 2018, see Release notes for Office for Mac.