Comment by Joker_vD

Okay, here's a real world example. Three months ago, stretchr/testify was version 1.3 and supported Go 1.10. Yesterday, we tried to build some project, and suddenly tests don't run because, you see, now testify is version 1.6 and they support only Go 1.13 and up. That's a bloody breaking change, okay? And it happens all the time with Go packages: they're constantly in the process of dropping support for older Go versions without bumping major versions.