Microsoft has released the November 2020 non-security Microsoft Office updates with performance enhancements and fixes for known issues impacting Windows Installer editions of Office 2016 products. The November 2020 updates released can be manually installed from the Download Center or automatically by using the Microsoft Update service. These updates apply to Microsoft Installer (.msi)-based Office products only and do not apply to Office subscription or Office 2016 Click-to-Run editions such as Microsoft Office 365 Home. Some of the updates may require system reboots.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-office-november-2020-updates-fix-outlook-skype-issues/