RootCAs:            globalRootCAs,
			ClientSessionCache: tls.NewLRUClientSessionCache(tlsClientSessionCacheSize),
		},
		DisableCompression: true,
	}
	return updateTransport
}

func getLatestReleaseTime(u *url.URL, timeout time.Duration, mode string) (sha256Sum []byte, releaseTime time.Time, err error) {
	data, err := downloadReleaseURL(u, timeout, mode)
	if err != nil {
		return sha256Sum, releaseTime, err
	}

		updateURL = minioReleaseWindowsInfoURL
	}

	u, err := url.Parse(updateURL)
	if err != nil {
		return
	}

	if currentReleaseTime.IsZero() {
		return
	}

	_, lrTime, err := getLatestReleaseTime(u, 2*time.Second, mode)
	if err != nil {
		return
	}

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