diff --git a/agent/app/service/app.go b/agent/app/service/app.go
index 44a57c5..68f5135 100644
--- a/agent/app/service/app.go
+++ b/agent/app/service/app.go
@@ -845,6 +845,8 @@ func (a AppService) GetAppUpdate() (*response.AppUpdateRes, error) {
 	if err != nil {
 		return nil, err
 	}
+	storedCompatibility, err := settingRepo.GetValueByKey(global.AppStoreCompatibilitySettingKey)
+	compatibilityChanged := err != nil || storedCompatibility != global.AppStoreCompatibilityVersion
 	if setting.AppStoreSyncStatus == constant.StatusSyncing {
 		res.IsSyncing = true
 		return res, nil
@@ -852,22 +854,24 @@ func (a AppService) GetAppUpdate() (*response.AppUpdateRes, error) {
 
 	appStoreLastModified, _ := strconv.Atoi(setting.AppStoreLastModified)
 	res.AppStoreLastModified = appStoreLastModified
-	if setting.AppStoreLastModified == "" || lastModified != appStoreLastModified {
+	if !compatibilityChanged && (setting.AppStoreLastModified == "" || lastModified != appStoreLastModified) {
 		res.CanUpdate = true
 		return res, err
 	}
-	apps, _ := appRepo.GetBy(appRepo.WithResource(constant.AppResourceRemote))
-	for _, app := range apps {
-		if app.Icon == "" {
-			res.CanUpdate = true
-			return res, err
-		}
-		if appicon.IsIconFile(app.Icon) {
-			fileName, _ := appicon.ParseIconField(app.Icon)
-			if fileName == "" || !appicon.IconFileExists(fileName) {
+	if !compatibilityChanged {
+		apps, _ := appRepo.GetBy(appRepo.WithResource(constant.AppResourceRemote))
+		for _, app := range apps {
+			if app.Icon == "" {
 				res.CanUpdate = true
 				return res, err
 			}
+			if appicon.IsIconFile(app.Icon) {
+				fileName, _ := appicon.ParseIconField(app.Icon)
+				if fileName == "" || !appicon.IconFileExists(fileName) {
+					res.CanUpdate = true
+					return res, err
+				}
+			}
 		}
 	}
 
@@ -880,6 +884,7 @@ func (a AppService) GetAppUpdate() (*response.AppUpdateRes, error) {
 		return nil, buserr.New("ErrVersionTooLow")
 	}
 	res.AppList = list
+	res.CanUpdate = compatibilityChanged
 	return res, nil
 }
 
diff --git a/agent/app/service/app_sync_task.go b/agent/app/service/app_sync_task.go
index 70024e8..4517eef 100644
--- a/agent/app/service/app_sync_task.go
+++ b/agent/app/service/app_sync_task.go
@@ -410,6 +410,10 @@ func (a AppService) createSyncAppStoreMetaTask(sharedCtx **appSyncContext) func(
 			t.LogFailedWithErr(i18n.GetMsgByKey("PersistAppDetails"), err)
 			return err
 		}
+		if err = ctx.settingService.Update(global.AppStoreCompatibilitySettingKey, global.AppStoreCompatibilityVersion); err != nil {
+			t.LogFailedWithErr(i18n.GetMsgByKey("PersistAppDetails"), err)
+			return err
+		}
 
 		global.LOG.Infof("[AppStore] Appstore meta sync completed")
 		return nil
diff --git a/agent/global/compatibility.go b/agent/global/compatibility.go
index 70e2a71..7fae6b9 100644
--- a/agent/global/compatibility.go
+++ b/agent/global/compatibility.go
@@ -4,3 +4,8 @@ package global
 // that nPanel has audited against. It is intentionally separate from the
 // nPanel product version stored in SystemVersion.
 const AppStoreCompatibilityVersion = "v2.2.3"
+
+// AppStoreCompatibilitySettingKey records the compatibility level used to
+// build the currently cached app catalog. A level change requires a full
+// catalog refresh even when the remote catalog timestamp is unchanged.
+const AppStoreCompatibilitySettingKey = "AppStoreCompatibilityVersion"
diff --git a/docs/nPanel-nixos-design.md b/docs/nPanel-nixos-design.md
index d6aa476..75d99ba 100644
--- a/docs/nPanel-nixos-design.md
+++ b/docs/nPanel-nixos-design.md
@@ -120,7 +120,7 @@ nPanel 不向用户导向上游社区或商业站点。删除：
 
 应用商店与资源端点需要单独进行兼容性审计：只要它们是保留 Docker 应用生态所必需的，就不自动删除；但 UI 不得展示上游品牌、商业、支持或社区链接。
 
-应用商店使用单独的内部兼容级别 `v2.2.3`。它表示 nPanel 已审计应用目录及其版本门槛所需的上游协议基线，不是 nPanel 的产品版本，也不写入用户配置或开放给用户覆盖。nPanel 的产品版本仍独立维护。
+应用商店使用单独的内部兼容级别 `v2.2.3`。它表示 nPanel 已审计应用目录及其版本门槛所需的上游协议基线，不是 nPanel 的产品版本，也不写入用户配置或开放给用户覆盖。nPanel 的产品版本仍独立维护。该级别会与缓存的应用目录一起记录；级别变化强制刷新目录详情，不能因远端目录时间戳未变而继续使用按旧规则筛选的缓存。
 
 ## 架构