The goal of issuing a major version is to create a separate package namespace so it can be imported concurrently to other major versions. By treating major vers

The goal of issuing a major version is to create a separate package namespace so it can be imported concurrently to other major versions. By treating major versions as different packages, it creates efficiencies in VCS history and common namespace. However, the goal is to create a new package name that can be concurrently imported with previous versions. Everything else is just method. Don't confuse the goal with the method.