Matt Lloyd <******@****.***> 1745728257 +0100

        // legacy metadata did not have "versioning.snapshotVersions"
        addSnapshotVersionLegacy(source.getVersioning(), after, 2);
        // although nothing has changed merge returns true, as the last modified date is equal
        // TODO: improve merge here?
        assertTrue(target.merge(source));
        // the result must be legacy format as well

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.DecommissionAdminAction)
	if objectAPI == nil {
		return
	}

	// Legacy args style such as non-ellipses style is not supported with this API.
	if globalEndpoints.Legacy() {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
		return
	}

	z, ok := objectAPI.(*erasureServerPools)

        assertTrue(DefaultMirrorSelector.matchesLayout("default", "legacy,default"));
        assertTrue(DefaultMirrorSelector.matchesLayout("default", "default,legacy"));

        assertFalse(DefaultMirrorSelector.matchesLayout("default", "legacy,!default"));
        assertFalse(DefaultMirrorSelector.matchesLayout("default", "!default,legacy"));

				meta.name = pathJoinBuf(sb, current, meta.name)
				meta.name = decodeDirObject(meta.name)

				return send(meta)
			}
			// Check legacy.
			if HasSuffix(entry, xlStorageFormatFileV1) && legacy {
				var meta metaCacheEntry
				meta.metadata, err = xioutil.ReadFile(pathJoinBuf(sb, volumeDir, current, entry))
				diskHealthCheckOK(ctx, err)
				if err != nil {

				continue
			}
			cfg.HTTP[target] = http.Config{
				Enabled:  true,
				Endpoint: url,
			}
		}

	case config.AuditWebhookSubSys:
		// List legacy audit ENVs if any.
		var loggerAuditTargets []string
		envs := env.List(legacyEnvAuditLoggerHTTPEndpoint)
		for _, k := range envs {
			target := strings.TrimPrefix(k, legacyEnvAuditLoggerHTTPEndpoint+config.Default)

	if err != nil {
		return nil, -1, err
	}

	for i, endpointList := range poolEndpoints {
		if err = endpointServerPools.Add(PoolEndpoints{
			Legacy:       legacy,
			SetCount:     len(poolArgs[i].layout),
			DrivesPerSet: len(poolArgs[i].layout[0]),
			Endpoints:    endpointList,
			Platform:     fmt.Sprintf("OS: %s | Arch: %s", runtime.GOOS, runtime.GOARCH),
			CmdLine:      poolArgs[i].cmdline,

            if ("legacy".equals(repository.getLayout())) {
                addViolation(
                        problems,
                        Severity.WARNING,
                        prefix + ".layout",
                        repository.getId(),
                        "uses the unsupported value 'legacy', artifact resolution might fail.");
            }
        }
    }

// bucketMetadataVersion can be used to track a rolling upgrade of a field.
type BucketMetadata struct {
	Name                        string
	Created                     time.Time
	LockEnabled                 bool // legacy not used anymore.
	PolicyConfigJSON            []byte
	NotificationConfigXML       []byte
	LifecycleConfigXML          []byte
	ObjectLockConfigXML         []byte
	VersioningConfigXML         []byte

                    {
                        java.util.Map<String, SnapshotVersion> versions = new java.util.LinkedHashMap<>();
                        // never convert from legacy to new format if either source or target is legacy format
                        if ( !v.getSnapshotVersions().isEmpty() )
                        {
                            for ( SnapshotVersion sv : versioning.getSnapshotVersions() )