diff --git a/tns-core-modules/declarations.d.ts b/tns-core-modules/declarations.d.ts
index f798b8d9b..cf015cf90 100644
--- a/tns-core-modules/declarations.d.ts
+++ b/tns-core-modules/declarations.d.ts
@@ -111,6 +111,13 @@ declare function Experimental(target: Object, key?: string | symbol, value?: any
  */
 declare function JavaProxy(nativeClassName: string): ClassDecorator;
 
+/**
+ * Important: Not applicable to Objective-C classes (iOS platform)
+ * Decorates class that extends native Java class
+ * @param interfaces An array of fully-classified Java interface names that the class must implement.
+ */ 
+declare function Interfaces(interfaces: any[]): ClassDecorator;
+
 declare function Log(data: any): void;
 declare function log(data: any): void;
 declare function float(num: number): any;
diff --git a/tns-core-modules/package.json b/tns-core-modules/package.json
index 27e04c29f..5f8eee516 100644
--- a/tns-core-modules/package.json
+++ b/tns-core-modules/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tns-core-modules",
   "description": "Telerik NativeScript Core Modules",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "homepage":"https://www.nativescript.org",
   "repository": {
     "type": "git",