diff --git a/docs/en/appservice/upgrade.mdx b/docs/en/appservice/upgrade.mdx
index 04398de81..744c64b7e 100644
--- a/docs/en/appservice/upgrade.mdx
+++ b/docs/en/appservice/upgrade.mdx
@@ -5,6 +5,15 @@ en: Upgrade
 
 # Upgrade
 
+:::warning
+PXC Removal in Alauda Database Service for MySQL v4.3.0
+
+**MySQL-PXC is deprecated** and **removed** starting from Alauda Database Service for MySQL v4.3.0. Existing PXC instances will continue running but are no longer managed by the MySQL operator. If you have PXC instances, you **must migrate them to MySQL-MGR before upgrading** to MySQL Operator v4.3.0 or later.
+
+- **Migration Guide**: See <ExternalSiteLink name="mysql-mgr" href="/how_to/35-migrate-from-pxc" children="Migrate MySQL-PXC to MySQL-MGR" /> for comprehensive step-by-step instructions covering schema compatibility, character sets, users, and privileges.
+- **MySQL Operator Upgrade Guide**: See <ExternalSiteLink name="mysql-mgr" href="/upgrade" children="Upgrade Guide" /> for pre-upgrade checklists, upgrade scenarios, and emergency response procedures.
+:::
+
 Alauda Container Platform Data Services Essentials requires a manual upgrade. After upgrading the platform, follow the steps below to upgrade the plugin:
 
 1. Log in to the platform and navigate to **Marketplace** > **Cluster Plugins**.