MacOS Monterey build 21C5021h

macOS Monterey build 21C5021h is the official Beta 1 release of macOS Monterey 12.1, which was released to Apple developers on 28 October 2021. This build is the first to support Navi 23-based graphics cards. It is also the first build to include the SharePlay feature which was absent in the initial release of the operating system.