微软对 Office for Mac 的安装系统要求条件中，宣称将只会支持 macOS 最新的三个版本。

当 macOS 的新版本发布时，微软将支持新版本和前两个版本。

Operating system

Windows OS: Windows 10, Windows 8.1, Windows Server 2019, Windows Server 2016

macOS: One of the three most recent versions of macOS. When a new major version of macOS is released, the macOS and the previous two versions.

For the best experience, use the most current build of any operating system specified above. Product functionality and feature availability may vary on older systems.

微软官宣