If you rely on Hugo, then why don't you use a versioned instance of it? You should.not always run the latest version, if you don't want to.change things that are broken.
They keep using the version 0.x.y, which means, they can at any time break things and don't care about backwards compatibility.
I use versioned instances of Hugo and had in all these years zero issues.
I can simply test the new version, then do the required changes and adopt it for my build.
I've always been surprised at people who don't version dependencies, even though package managers like npm support this easily. Then they complain of "DEPENDENCY HELL omg" when they've got "*" as a version, or try and bump something critical 3 major versions in the middle of other work. Like why
They keep using the version 0.x.y, which means, they can at any time break things and don't care about backwards compatibility.
I use versioned instances of Hugo and had in all these years zero issues. I can simply test the new version, then do the required changes and adopt it for my build.