// Mesos deployment doc link.
	mesosDeploymentDoc = "https://min.io/docs/minio/kubernetes/upstream/index.html#quickstart-for-kubernetes"
)

func getDownloadURL(releaseTag string) (downloadURL string) {
	// Check if we are in DCOS environment, return
	// deployment guide for update procedures.
	if IsDCOS() {
		return mesosDeploymentDoc
	}

	if err != nil {
		return
	}

	var older time.Duration
	var downloadURL string
	if lrTime.After(currentReleaseTime) {
		older = lrTime.Sub(currentReleaseTime)
		downloadURL = getDownloadURL(releaseTimeToReleaseTag(lrTime))
	}

	updateMsg := prepareUpdateMessage(downloadURL, older)
	if updateMsg == "" {
		return
	}