According to the article, the solution I suggest has been proposed in the Go community, and I don't know of any language where it has actually been adopted, so

According to the article, the solution I suggest has been proposed in the Go community, and I don't know of any language where it has actually been adopted, so Go might be the first. I just know that Java has been forced to work around its absence. As for the tasks that need to be solved here, the primary one I see is reconciling the needs of different libraries. What do you do when you depend on library A and library B and they need two incompatible versions of library C? As I see it, there's no clean way to answer that question if A and B expect the two incompatible versions to be present with the same name.