> There is no reason I can think of that someone would want to be on an older version of Go. Go 1.20 is is the last release that will run on any release of Win

> There is no reason I can think of that someone would want to be on an older version of Go. Go 1.20 is is the last release that will run on any release of Windows 7, 8, Server 2008 and Server 2012, macOS 10.13 High Sierra or 10.14 Mojave. In addition to these OSes there are also platforms like Google App Engine. Google is notoriously slow at updating the Go runtime. Until January 17, 2023 the latest Go runtime generally available on Google App Engine was Go 1.16, while in the broader ecosystem Go 1.20 was already scheduled to release two weeks later. That's two whole years behind. It sucks, but it is the reality of how Google operates things. They still haven't added support beyond Go 1.15 to the local development server.