What are the "benefits" of this approach?

To re-iterate a different post of mine against this question (implicitly, what are the benefits of NOT having library versions):

    * The only version to test against is HEAD
    * No fossilization of security or stability issues
    * Public libraries must support all Uppercased (exposed) declarations; that is the library interface.
    * If the build breaks in an odd way: update go, then: go get -u all
    * Simplicity, there's only one supported version and only one version to go get and develop against.
    * Also, why would building against an old version _ever_ be necessary?