> I disagree You disagree that "you shouldn't need a clean OS every time you want to use a new language version"!? ... I don't even know what to say, that's no

> I disagree You disagree that "you shouldn't need a clean OS every time you want to use a new language version"!? ... I don't even know what to say, that's not something you can disagree with > If you try to build it in a completely clean container, you can ensure that you have caught every dependency, and you will eliminate all of the "but it works on my machine!" This is what testing is for. You don't need to cripple your development environment to have confidence your code works in other environments. Talk about the ends not justifying the means.