Microsoft released the May 2020 non-security Microsoft Office updates with fixes for several issues and performance improvements to Windows Installer editions of Office 2016 and Office 2013. Microsoft also fixed a total of 55 security updates and five cumulative updates for seven different products as part of last month’s Office security updates. The updates can be manually downloaded and installed from the Download Center or by using the Microsoft Update service for automatic installation. The list of updates issued today and the Office product they apply to is available below.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-may-office-updates-with-fixes-for-auth-issues/