v1.4.0 - Go Modules
First release with Go Modules, a significant feature addition to a package - hence the bump in Minor to 1.4 going forward. The most critical thing to note in this update is that the vendor/
folder has been flushed out with more dependencies to allow for a true air-gapped testing setup (which I ran into during development on a new machine).
Unless you were looking for Go Modules support in your pipelines, this is not a required upgrade as there was no underlying package changes.
As always, 1.x branch keeps backwards compatibility.
Also note that going forward, Go Modules is supporting the vendor/
folder, keeping it backwards compatible with 1.7+ versions.