diff --git a/chart/ocp-readme.md b/chart/ocp-readme.md
index f7638775b0..7b0be07faa 100644
--- a/chart/ocp-readme.md
+++ b/chart/ocp-readme.md
@@ -34,15 +34,25 @@ Main changes and tasks for OCP are:
 - General Feature/Issue Thread
   - [[FEATURE] Deploying Longhorn on OKD/Openshift](https://github.com/longhorn/longhorn/issues/1831)
 - 4.10 / 1.23:
+  - Longhorn Versions Tested:
+    - 1.3.0  
   - 4.10.0-0.okd-2022-03-07-131213 to 4.10.0-0.okd-2022-07-09-073606
     - Tested, No Known Issues
 - 4.11 / 1.24:
+  - Longhorn Versions Tested:
+    - 1.3.0
+    - 1.3.1  
+    - 1.3.2  
+    - 1.4.0
   - 4.11.0-0.okd-2022-07-27-052000 to 4.11.0-0.okd-2022-11-19-050030
     - Tested, No Known Issues
   - 4.11.0-0.okd-2022-12-02-145640, 4.11.0-0.okd-2023-01-14-152430:
     - Workaround: [[BUG] Volumes Stuck in Attach/Detach Loop](https://github.com/longhorn/longhorn/issues/4988)
       - [MachineConfig Patch](https://github.com/longhorn/longhorn/issues/4988#issuecomment-1345676772)
 - 4.12 / 1.25:
+  - Longhorn Versions Tested:
+    - 1.4.0
+    - 1.4.1
   - 4.12.0-0.okd-2022-12-05-210624 to 4.12.0-0.okd-2023-01-20-101927
     - Tested, No Known Issues
   - 4.12.0-0.okd-2023-01-21-055900 to 4.12.0-0.okd-2023-02-18-033438:
@@ -51,11 +61,27 @@ Main changes and tasks for OCP are:
   - 4.12.0-0.okd-2023-03-05-022504 - 4.12.0-0.okd-2023-04-16-041331:
     - Tested, No Known Issues
 - 4.13 / 1.26:
-  - 4.13.0-0.okd-2023-05-03-001308 - 4.13.0-0.okd-2023-08-18-135805:
+  - Longhorn Versions Tested:
+    - 1.4.1
+    - 1.4.2
+    - 1.5.0
+    - 1.5.1
+  - 4.13.0-0.okd-2023-05-03-001308 - 4.13.0-0.okd-2023-09-30-084937:
     - Tested, No Known Issues
 - 4.14 / 1.27:
-  - 4.14.0-0.okd-2023-08-12-022330 - 4.14.0-0.okd-2023-10-28-073550:
+  - Longhorn Versions Tested:
+    - 1.5.1
+    - 1.5.3
+  - 4.14.0-0.okd-2023-08-12-022330 - 4.14.0-0.okd-2024-01-26-175629:
     - Tested, No Known Issues
+- 4.15 / 1.28:
+  - Longhorn Versions Tested:
+    - 1.5.3
+    - 1.6.0
+  - 4.15.0-0.okd-2024-01-27-070424 - 4.15.0-0.okd-2024-02-23-163410:
+    - Tested, No Known Issues
+      - Note: 4.15 requires an additional yaml for UI Login, provided under ```chart/templates/deployment-ui: secret/longhorn-ui-service-account```
+
 
 ## Preparing Nodes (Optional)
 
diff --git a/chart/templates/deployment-ui.yaml b/chart/templates/deployment-ui.yaml
index 0ee86c7904..571fcb6de7 100644
--- a/chart/templates/deployment-ui.yaml
+++ b/chart/templates/deployment-ui.yaml
@@ -34,6 +34,17 @@ spec:
   selector:
     app: longhorn-ui
 ---
+apiVersion: v1
+kind: Secret
+metadata:
+  labels: {{- include "longhorn.labels" . | nindent 4 }}
+    app: longhorn-ui
+  name: longhorn-ui-service-account
+  namespace: {{ include "release_namespace" . }}
+  annotations:
+    kubernetes.io/service-account.name: longhorn-ui-service-account
+type: kubernetes.io/service-account-token
+---
 {{- end }}
 {{- end }}
 apiVersion: apps/v1
diff --git a/chart/values.yaml b/chart/values.yaml
index 4452672727..92981f68ff 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -101,8 +101,8 @@ image:
     oauthProxy:
       # -- Repository for the OAuth Proxy image. This setting applies only to OpenShift users.
       repository: quay.io/openshift/origin-oauth-proxy
-      # -- Tag for the OAuth Proxy image. This setting applies only to OpenShift users. Specify OCP/OKD version 4.1 or later. The latest stable version is 4.14.
-      tag: 4.14
+      # -- Tag for the OAuth Proxy image. This setting applies only to OpenShift users. Specify OCP/OKD version 4.1 or later. The latest stable version is 4.15.
+      tag: 4.15
   # -- Image pull policy that applies to all user-deployed Longhorn components, such as Longhorn Manager, Longhorn driver, and Longhorn UI.
   pullPolicy: IfNotPresent