into.addChild(h)
				// We scanned a folder, optionally send update.
				f.updateCache.deleteRecursive(h)
				f.updateCache.copyWithChildren(&f.newCache, h, folder.parent)
				f.sendUpdate()
			}
		}

		// Transfer existing
		if !into.Compacted {
			for _, folder := range existingFolders {
				h := hashPath(folder.name)
				f.updateCache.copyWithChildren(&f.oldCache, h, folder.parent)
			}

// newer version is available.
func prepareUpdateMessage(downloadURL string, older time.Duration) string {
	if downloadURL == "" || older <= 0 {
		return ""
	}

	// Compute friendly duration string to indicate time
	// difference between newer and current release.
	t := time.Time{}
	newerThan := humanize.RelTime(t, t.Add(older), "before the latest release", "")

	if globalServerCtxt.JSON {

		{2 * 365 * 24 * time.Hour, "my_download_url", "2 years before the latest release"},
	}

	plainMsg := "You are running an older version of MinIO released"

	for i, testCase := range testCases {
		output := prepareUpdateMessage(testCase.dlURL, testCase.older)
		line1 := fmt.Sprintf("%s %s", plainMsg, color.YellowBold(testCase.expectedSubStr))
		line2 := fmt.Sprintf("Update: %s", color.CyanBold(testCase.dlURL))

)

// Legacy envs
const (
	legacyEnvAuditLoggerHTTPEndpoint = "MINIO_AUDIT_LOGGER_HTTP_ENDPOINT"
	legacyEnvLoggerHTTPEndpoint      = "MINIO_LOGGER_HTTP_ENDPOINT"
)

// SetLoggerHTTPAudit - helper for migrating older config to newer KV format.
func SetLoggerHTTPAudit(scfg config.Config, k string, args http.Config) {
	if !args.Enabled {
		// Do not enable audit targets, if not enabled
		return
	}

		// ... otherwise we return the <GZIP> place holder
		return gzippedBody
	}
	// If there was an error response or body logging is enabled
	// then we return the body contents
	if (lrw.LogErrBody && lrw.StatusCode >= http.StatusBadRequest) || lrw.LogAllBody {
		return lrw.body.Bytes()
	}
	// ... otherwise we return the <BLOB> place holder
	return blobBody
}

// WriteHeader - writes http status code

	if err := os.Remove(path); err != nil && !os.IsNotExist(err) {
		// Anything other than "file not found" is an error.
		return nil, fmt.Errorf("failed to remove unix://%s: %v", path, err)
	}

	// Attempt to create the folder in case it doesn't exist
	if err := os.MkdirAll(filepath.Dir(path), 0o750); err != nil {
		// If we cannot create it, just warn here - we will fail later if there is a real error

	// END realtime metrics:
	scannerMetricLastRealtime

	// Trace only metrics:
	scannerMetricScanFolder      // Scan a folder on disk, recursively.
	scannerMetricScanCycle       // Full cycle, cluster global
	scannerMetricScanBucketDrive // Single bucket on one drive
	scannerMetricCompactFolder   // Folder compacted.

	// Must be last:
	scannerMetricLast
)

// log scanner action.
// Use for s > scannerMetricStartTrace

		name            string
		content         string
		meta            map[string]string
		addDeleteMarker bool
	}{
		{testBuckets[0], "unique/folder/", "", nil, true},
		{testBuckets[0], "unique/folder/1.txt", "content", nil, false},
		{testBuckets[1], "unique/folder/1.txt", "content", nil, true},
	}
	for _, object := range testObjects {
		md5Bytes := md5.Sum([]byte(object.content))

	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
	}

	files, _ := filepath.Glob(filepath.Join(diskPath, ".writable-check-*.tmp"))
	for _, file := range files {
		go removeAll(file)
	}

	// Remove the entire folder in case there are leftovers that didn't get cleaned up before restart.
	go removeAll(pathJoin(diskPath, minioMetaTmpBucket+"-old"))

	// Renames and schedules for purging all bucket metacache.