What version did "docker container" commands come out?

I have used older versions of Docker. I see “docker container” is a new command. What version and/or what year was this command introduced?

Could’t find this out exactly, but as far as I go back in the docker cli repo on Github, this means back to March 2017 and 17.06.0, it’s already there. Just… many years later the docs for docker container .. are still not on the same level as those for docker ....