diff --git a/content/rancher/v2.x/en/cluster-admin/tools/istio/release-notes/_index.md b/content/rancher/v2.x/en/cluster-admin/tools/istio/release-notes/_index.md
index 18e8f3cec92..9b819eb4500 100644
--- a/content/rancher/v2.x/en/cluster-admin/tools/istio/release-notes/_index.md
+++ b/content/rancher/v2.x/en/cluster-admin/tools/istio/release-notes/_index.md
@@ -3,12 +3,11 @@ title: Release Notes
 ---
 
 
-# Istio 1.5.7
-
+# Istio 1.5.8
 
 ### Important note on 1.5.x versions
 
-When upgrading from any 1.4 version of Istio to any 1.5 version, the Rancher installer will delete several resources in order to complete the upgrade, at which point they will be immediately re-installed. This includes the `istio-reader-service-account`. If your Istio installation is using this service account be aware that any secrets tied to the service account will be deleted. Most notably this will **break specific [multi-cluster deployments](https://archive.istio.io/v1.4/docs/setup/install/multicluster/)**.
+When upgrading from any 1.4 version of Istio to any 1.5 version, the Rancher installer will delete several resources in order to complete the upgrade, at which point they will be immediately re-installed. This includes the `istio-reader-service-account`. If your Istio installation is using this service account be aware that any secrets tied to the service account will be deleted. Most notably this will **break specific [multi-cluster deployments](https://archive.istio.io/v1.4/docs/setup/install/multicluster/)**. Downgrades back to 1.4 are not possible.
 
 See the official upgrade notes for additional information on the 1.5 release and upgrading from 1.4: https://istio.io/latest/news/releases/1.5.x/announcing-1.5/upgrade-notes/