diff --git a/api-generator/components/multiselect.js b/api-generator/components/multiselect.js
index 874296e69..5633618d1 100644
--- a/api-generator/components/multiselect.js
+++ b/api-generator/components/multiselect.js
@@ -160,6 +160,30 @@ const MultiSelectProps = [
         type: "string",
         default: "pi pi-spinner pi-spin",
         description: "Icon to display in loading state."
+    },
+    {
+        name: "maxSelectedLabels",
+        type: "number",
+        default: "null",
+        description: "Decides how many selected item labels to show at most."
+    },
+    {
+        name: "selectedItemsLabel",
+        type: "string",
+        default: "{0} items selected",
+        description: "Label to display after exceeding max selected labels."
+    },
+    {
+        name: "selectAll",
+        type: "boolean",
+        default: "false",
+        description: "Whether all data is selected."
+    },
+    {
+        name: "virtualScrollerOptions",
+        type: "object",
+        default: "null",
+        description: "Whether to use the virtualScroller feature. The properties of VirtualScroller component can be used like an object in it."
     }
 ];
 
@@ -211,6 +235,22 @@ const MultiSelectEvents = [
                 description: "Filter value"
             }
         ]
+    },
+    {
+        name: "selectall-change",
+        description: "Callback to invoke when all data is selected.",
+        arguments: [
+            {
+                name: "event.originalEvent",
+                type: "object",
+                description: "Browser event"
+            },
+            {
+                name: "event.checked",
+                type: "boolean",
+                description: "Whether all data is selected."
+            }
+        ]
     }
 ];