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diff --git a/documentation/docs/release-notes/3.1.0.md b/documentation/docs/release-notes/3.1.0.md
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+++ b/documentation/docs/release-notes/3.1.0.md
@@ -17,7 +17,7 @@ PMM empowers you to:
 
 ## Release highlights
 
-
+### Improvements to MongoDB monitoring
 ### Enhanced permission control for Advisors and Alerts
 
 We've refined role-based access for Advisors and Alerts, making it easier for teams to collaborate while maintaining security boundaries.
@@ -40,16 +40,37 @@ For more details, see [PMM roles and permissions](../admin/roles/index.md).
 
 ### Improved MongoDB cluster topology visualization
 
-We have improved the [MongoDB Cluster Summary dashboard](../reference/dashboards/dashboard-mongodb-cluster-summary.md) by restoring and refining the **Current Topology** section, which had been available in older PMM 2 versions.
+#### Improved MongoDB cluster topology visualization
+
+We have improved the [MongoDB Cluster Summary dashboard](../reference/dashboards/dashboard-mongodb-cluster-summary.md) with an enhanced **Current Topology** section, which had been available in older PMM 2 versions.
+
+This redesigned section now properly categorizes MongoDB cluster components—shards, config servers, and mongos routers—within their appropriate hierarchical sections. This replaces the previous implementation where all components were incorrectly grouped under the **Config Servers** section.
+
+The enhanced visualization provides a clearer representation of your MongoDB cluster architecture, making it simpler to understand relationships between components:
+
+![Topology section](../images/Topology.png)
+=======
 
-This section now correctly organizes and displays MongoDB cluster components—including shards, config servers, and mongos routers—within their respective sections, ensuring a clear hierarchical structure. Previously, all components were incorrectly grouped under the Config Services section.
+#### Enhanced filtering capabilities 
+We've improved the filtering experience on the [MongoDB Instances Compare](../reference/dashboards/dashboard-mongodb-instances-compare.md) dashboard with four new selection boxes in addition to the existing **Service Name** filter:
 
-This enhancement provides a more accurate and intuitive visualization of your MongoDB cluster architecture, making it easier to understand, monitor, and manage the relationships between its components:
+- **Replication Set**: filters instances by their replication set
+- **Environment**: filters instances by environment
+- **Cluster**: filters instances by cluster
+- **Node**: filters instances by node name
 
-![Topology section](Topology.png)
+![MongoDB Instances Compare](../images/New_Filters.png)
 
+These additional filters make it easier to navigate and compare MongoDB instances in larger environments, allowing you to quickly narrow down the specific instances you want to monitor without relying solely on service names.
 
+#### Enhanced MongoDB dashboard visualizations
+Based on community feedback, we've improved the monitoring experience in both the [MongoDB ReplicaSet Summary](../reference/dashboards/dashboard-mongodb-replset-summary.md) and the [MongoDB Sharded Cluster Summary](../reference/dashboards/dashboard-mongodb-cluster-summary.md) dashboards. These improvements deliver more accurate and actionable insights:
 
+- Enhanced node state detection for reliable identification of down nodes
+- Optimized **Top Hottest Collections** panel showing only the most critical data
+- Improved readability with rounded numbers in **Overview** panels
+- Added precision with decimal values (tenths) in **Top Hottest Collections** panels
+- Resolved visualization issues in **Disk I/O** and **Network traffic** panels for more reliable performance monitoring
 
 ## Improvements