diff --git a/README.md b/README.md
index fe914cf..fc63fe0 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ AnyProxy
 [download-image]: https://img.shields.io/npm/dm/anyproxy.svg?style=flat-square
 [download-url]: https://npmjs.org/package/anyproxy
 
-A fully configurable proxy in NodeJS, which can handle HTTPS requests perfectly.
+A fully configurable HTTP/HTTPS proxy in NodeJS.
 
 Home page : [AnyProxy.io](http://anyproxy.io)
 
@@ -31,6 +31,18 @@ Home page : [AnyProxy.io](http://anyproxy.io)
     * [HTTPS相关教程](https://github.com/alibaba/anyproxy/wiki/HTTPS%E7%9B%B8%E5%85%B3%E6%95%99%E7%A8%8B)，讲解如何配置AnyProxy的https特性
 * 中文主页：[http://anyproxy.io](http://anyproxy.io/cn)
 
+# [4.0.0-beta](../../tree/4.x) published!
+
+ *With Asynchronous rule API supported, and a new designed UI.*
+
+ **want to get a full control over your requests and responses? Just write a rule and return a Promise.** You can find the [full API docs of v4.0Beta](../../blob/4.x/doc/rule_api.md).
+
+> The new version is in Beta release. Don't hesitate to send your PR or report an issue, we hope to hear your voice!
+
+> `npm install -g anyproxy@beta`, hope you like it!
+
+<img src="https://zos.alipayobjects.com/rmsportal/qzjbHWyxQsXPNEqXZqMD.gif" width="900" alt="AnyProxy screenshot" ) />
+
 Feature
 ------------
 * work as http or https proxy