Release 4.9.0

docs/data-replication/manage-task.md

@@ -7,7 +7,7 @@ After the replication task is created, you can monitor and manage the task in th
 
 | Operation | Description |
 | ----------------- | ------------------------------------------------------------ |
-| **Set Tag** | Click the ![tag_icon](../images/tag_icon.png) icon at the top left of the task list to expand the tag information. You can quickly set tags by clicking and dragging the task name to the desired tag. |
+| **Set Tag** | Click the ![tag_icon](../images/tag_icon.png) icon at the top left of the task list to expand the tag information. You can quickly set tags by clicking and dragging the task name to the desired tag. <br />When creating a new task tag, you can set its name and priority. The higher the priority, the earlier the task will be executed during batch startup. |
 | **Set category** | Choose the target task and categorize it based on the business perspective.  |
 | **Start**/**Stop** | After stopping the task, the next start will continue to replicate the data based on the last stopped incremental point in time. |
 | **Edit** | Configure the task, including node settings, synchronized tables, task start schedule, and other information. Please note that the task cannot be altered during execution. |

docs/data-transformation/manage-task.md

@@ -6,7 +6,7 @@ Once the data transformation task is created, you can manage it in the task list
 
 | Operation | Description |
 | ----------------- | ------------------------------------------------------------ |
-| **Set Tag** | Click the ![tag_icon](../images/tag_icon.png) icon at the top left of the task list to expand the tag information. You can quickly set tags by clicking and dragging the task name to the desired tag. |
+| **Set Tag** | Click the ![tag_icon](../images/tag_icon.png) icon at the top left of the task list to expand the tag information. You can quickly set tags by clicking and dragging the task name to the desired tag.  <br />When creating a new task tag, you can set its name and priority. The higher the priority, the earlier the task will be executed during batch startup.|
 | **Set category** | Choose the target task and categorize it based on the business perspective.  |
 | **Start**/**Stop** | After stopping the task, the next start will continue to replicate the data based on the last stopped incremental point in time. |
 | **Edit** | Configure the task, including node settings, synchronized tables, task start schedule, and other information. Please note that the task cannot be altered during execution. |

docs/publish-apis/create-api-service.md

@@ -39,7 +39,7 @@ Currently, it supports Doris, MongoDB, MySQL, Oracle, PostgreSQL, SQL Server, an
 
    ![Try Query API](../images/try_query_api.png)
 
-7. (Optional) For the data services you have created, you can <span id="release330-export-api">select and export them</span> for backup or sharing with other team members. You can also import data services.
+7. (Optional) For existing data services, you can <span id="release330-export-api">duplicate, select/export</span> them for backup or to share with other team members. You can also import data services as needed.
 
    ![Import/Export API Services](../images/import_export_api.png)
 

docs/release-notes-on-prem.md

@@ -14,6 +14,27 @@ import TabItem from '@theme/TabItem';
 <TabItem value="Version 4.x" default>
 ```
 
+## 4.9.0
+
+### New Features
+
+* [Added Prometheus integration](platform-ops/monitor-with-prometheus.md), allowing you to connect Tapdata to your existing monitoring stack, and build custom visual dashboards with Grafana.
+* Introduced new API monitoring metrics with support for [email alert configuration](system-admin/other-settings/notification.md#alert-settings).
+* Added support for [one-click API duplication](publish-apis/create-api-service.md#release330-export-api), making it easier to quickly create APIs with the same configuration.
+* Added the ability to [set task startup priority using tags](data-replication/manage-task.md); when starting tasks in bulk, execution will follow the defined priority order.
+
+### Enhancements
+
+* While [creating APIs](publish-apis/create-api-service.md), parameters now support the `IN` operator (e.g., `caseType IN ('I', 'A')`). Custom queries now support required/optional parameter settings and field filtering.
+* Optimized QPS metrics display on the task monitoring page, now including CPU and memory usage trend charts.
+* UI enhancements across the platform for a better user experience.
+
+### Bug Fixes
+
+* Fixed an issue where setting group tags in user management could incorrectly set the user status to “Reject.”
+* Fixed a problem in multi-node deployments where license updates on the frontend were not propagated to all nodes.
+
+
 ## 4.8.0
 
 ### New Features

docs/system-admin/other-settings/notification.md

@@ -37,7 +37,7 @@ After logging into the TapData platform, click the ![setting_icon](../../images/
 
 ## <span id="mail-alert">Alert Settings</span>
 
-In the **Alert Settings**, you can configure which task events should trigger alert notifications, how the notifications are sent (e.g., via email), and the notification interval.
+Through alert settings, you can configure alert rules for tasks, nodes, and API services. Notifications can be triggered by various events, with customizable notification methods (such as email) and configurable sending intervals.
 
 ![](../../images/system_notification_2.png)