diff --git a/en/release-notes.md b/en/release-notes.md
index e065b8e..fc22ded 100644
--- a/en/release-notes.md
+++ b/en/release-notes.md
@@ -1,12 +1,27 @@
 ## Container > NHN Kubernetes Service (NKS) > Release Notes
 
+### December 23, 2025
+
+#### Platform Version Update
+* Added 1.202511.1.
+    * Fixed an error in the confirmation port setting for health checks.
+
+#### Add-on Update
+* Added Cinder CSI Plugin v1.27.101-nks2, v1.27.102-nks2.
+    * The internal container version has changed as follows:
+        * csi-attacher: v3.0.2 → v3.3.0
+        * csi-provisioner: v2.0.4 → v2.2.2
+        * csi-snapshotter: v3.0.2 → v3.0.3
+        * csi-resizer: v1.0.1 → v1.3.0
+        * csi-node-driver-registrar: v2.0.1 → v2.3.0
+
 ### November 25, 2025
 
 #### Changed Service Support Policy
 * Changed the support policy for the Kubernetes version of NKS.
     * For more information, refer to the [Version Guide](/Container/NKS/en/version-guide).
 
-#### Updated Add-on
+#### Add-on Update
 * The following add-ons are added:
     * Calico CNI v3.30.2-nks1
     * Cinder CSI Plugin v1.27.101-nks1, v1.27.102-nks1
diff --git a/en/user-guide.md b/en/user-guide.md
index 3760015..b725876 100644
--- a/en/user-guide.md
+++ b/en/user-guide.md
@@ -2183,7 +2183,19 @@ The Cinder CSI Plugin is a CSI driver that allows you to provision and manage bl
 * Options: None
 * Supported Versions
     * v1.27.101-nks1
+    * v1.27.101-nks2: the internal container version has changed.
+        * csi-attacher: v3.0.2 → v3.3.0
+        * csi-provisioner: v2.0.4 → v2.2.2
+        * csi-snapshotter: v3.0.2 → v3.0.3
+        * csi-resizer: v1.0.1 → v1.3.0
+        * csi-node-driver-registrar: v2.0.1 → v2.3.0    
     * v1.27.102-nks1
+    * v1.27.102-nks2: the internal container version has changed.
+        * csi-attacher: v3.0.2 → v3.3.0
+        * csi-provisioner: v2.0.4 → v2.2.2
+        * csi-snapshotter: v3.0.2 → v3.0.3
+        * csi-resizer: v1.0.1 → v1.3.0
+        * csi-node-driver-registrar: v2.0.1 → v2.3.0
 
 <a id="adoon-mgmt-addon-metrics-server">
 #### Metrics Server
diff --git a/en/version-guide.md b/en/version-guide.md
index 83eef2d..932d59c 100644
--- a/en/version-guide.md
+++ b/en/version-guide.md
@@ -92,3 +92,4 @@ To ensure stable service operation, we apply a service support policy for each K
 |------|------------|--------------------|-----|
 | 1.202505.0 | 2025.11 | v1.28–v1.32 | Indicates a cluster that does not have a platform version applied. |
 | 1.202511.0 | 2025.11 | v1.28–v1.33 | Initial release of the platform version |
+| 1.202511.1 | 2025.12 | v1.28–v1.33 | Fixed an error in the confirmation port setting for health checks |