If you need to find out which macOS version you have, read how to Find out which macOS your Mac is using. As of this writing, the latest macOS version is macOS Big Sur (11.2.1). A computer that runs one of the three most recent versions of macOS.To follow along with this tutorial, you will need to meet the following requirements. Signing-in with your Microsoft Teams Account.Option 2: Starting Microsoft Teams from the Spotlight Search.Option 1: Starting Microsoft Teams from the Applications Folder.Starting and Signing-in Microsoft Teams for Mac.Downloading the Microsoft Teams Installer.