agent/dockerclient/versions.go
func GetKnownAPIVersions() []DockerVersion {
	return []DockerVersion{
		Version_1_17,
		Version_1_18,
		Version_1_19,
		Version_1_20,
		Version_1_21,
		Version_1_22,
		Version_1_23,
		Version_1_24,
		Version_1_25,
		Version_1_26,
		Version_1_27,
		Version_1_28,
		Version_1_29,
		Version_1_30,
		Version_1_31,
		Version_1_32,
	}
}
func GetKnownAPIVersions() []DockerVersion {
	return []DockerVersion{
		Version_1_17,
		Version_1_18,
		Version_1_19,
		Version_1_20,
		Version_1_21,
		Version_1_22,
		Version_1_23,
		Version_1_24,
		Version_1_25,
		Version_1_26,
		Version_1_27,
		Version_1_28,
		Version_1_29,
		Version_1_30,
		Version_1_31,
		Version_1_32,
	}
}
// GetKnownAPIVersions returns all of the API versions that we know about.
// It doesn't care if the version is supported by Docker or ECS agent