[quassy]

That is an argument for libyears, not against it. If they only updated the docs, why didn't you upgrade already? If anything, projects using stable libraries like this could very easily reach 0 libyears, because there are no breaking changes when upgrading.

[agilob]

It's for and against at the same time. Depends on your software upgrade roadmap. I think that's just a silly number, that us correct and incorrect at the same time, but probably good enough on a large scale, just like story points.