resolved #5

Author: sqlProvider

CHANGELOG.md

@@ -1,3 +1,6 @@
+## Next v4.0.0
+ - Only version changed for anyone using Angular 4.0.0
+
 ## v2.0.1
  - $pub command return undefined when no event subscribe.
  - $sub method bug solved. RxJS Subscriber no longer call subscribe method on start.

README.md

@@ -9,6 +9,10 @@ A simple publisher/subscriber service.
 
 `npm i --save angular2-pubsub` | `bower i --save angular2-pubsub`
 
+	if you use Angular version 4.x.x plase install from npm with 'next' tag.
+
+`npm i --save angular2-pubsub@next`
+
  - Add module bundle to imports in your application.
 ```typescript
 ...