diff --git a/specification/devcenter/DevCenter.Management/client.tsp b/specification/devcenter/DevCenter.Management/client.tsp
index ab88f4e1c08b..8ded7c3eebee 100644
--- a/specification/devcenter/DevCenter.Management/client.tsp
+++ b/specification/devcenter/DevCenter.Management/client.tsp
@@ -223,6 +223,7 @@ using Microsoft.DevCenter;
 );
 @@clientName(CatalogSyncError, "DevCenterCatalogSyncError", "csharp");
 @@clientName(ConfigurationPolicies, "DevCenterConfigurationPolicies", "csharp");
+#suppress "deprecated" "Continuing to use v4 CustomerManagedKeyEncryption for backward compatibility"
 @@clientName(
   Azure.ResourceManager.CommonTypes.CustomerManagedKeyEncryption,
   "DevCenterCustomerManagedKeyEncryption",
diff --git a/specification/devcenter/DevCenter.Management/models.tsp b/specification/devcenter/DevCenter.Management/models.tsp
index fc9cbf38d21f..52ca2d3ff9b9 100644
--- a/specification/devcenter/DevCenter.Management/models.tsp
+++ b/specification/devcenter/DevCenter.Management/models.tsp
@@ -685,6 +685,7 @@ model DevCenterUpdateProperties {
 @doc("Encryption properties.")
 model Encryption {
   @doc("All Customer-managed key encryption properties for the resource.")
+  #suppress "deprecated" "Continuing to use v4 CustomerManagedKeyEncryption for backward compatibility"
   customerManagedKeyEncryption?: CustomerManagedKeyEncryption;
 }