release 2.4.0

README-EN.md

 Transmittable ThreadLocal(TTL)
 =====================================
 
-[![Build Status](https://travis-ci.org/alibaba/transmittable-thread-local.svg?branch=master)](https://travis-ci.org/alibaba/transmittable-thread-local)
-[![Windows Build Status](https://img.shields.io/appveyor/ci/oldratlee/transmittable-thread-local/master.svg?label=windows%20build)](https://ci.appveyor.com/project/oldratlee/transmittable-thread-local)
-[![Coverage Status](https://img.shields.io/codecov/c/github/alibaba/transmittable-thread-local/master.svg)](https://codecov.io/gh/alibaba/transmittable-thread-local/branch/master)
+[![Build Status](https://travis-ci.org/alibaba/transmittable-thread-local.svg?branch=v2.4.0)](https://travis-ci.org/alibaba/transmittable-thread-local)
+[![Windows Build Status](https://img.shields.io/appveyor/ci/oldratlee/transmittable-thread-local/v2.4.0.svg?label=windows%20build)](https://ci.appveyor.com/project/oldratlee/transmittable-thread-local)
+[![Coverage Status](https://img.shields.io/codecov/c/github/alibaba/transmittable-thread-local/v2.4.0.svg)](https://codecov.io/gh/alibaba/transmittable-thread-local/branch/v2.4.0)
 [![Maven Central](https://img.shields.io/maven-central/v/com.alibaba/transmittable-thread-local.svg)](http://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22com.alibaba%22%20AND%20a%3A%22transmittable-thread-local%22)
 [![GitHub release](https://img.shields.io/github/release/alibaba/transmittable-thread-local.svg)](https://github.com/alibaba/transmittable-thread-local/releases)  
 [![Join the chat at https://gitter.im/alibaba/transmittable-thread-local](https://badges.gitter.im/alibaba/transmittable-thread-local.svg)](https://gitter.im/alibaba/transmittable-thread-local?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
@@ -211,7 +211,7 @@ to start demo of "Use Java Agent to decorate thread pool implementation class".
 
 # :electric_plug: Java API Docs
 
-The current version Java API documentation: <http://alibaba.github.io/transmittable-thread-local/apidocs/>
+The current version Java API documentation: <http://alibaba.github.io/transmittable-thread-local/apidocs/2.4.0/index.html>
 
 # :cookie: Maven dependency
 
@@ -219,7 +219,7 @@ The current version Java API documentation: <http://alibaba.github.io/transmitta
 <dependency>
 	<groupId>com.alibaba</groupId>
 	<artifactId>transmittable-thread-local</artifactId>
-	<version>2.3.0</version>
+	<version>2.4.0</version>
 </dependency>
 ```
 

README.md

 Transmittable ThreadLocal(TTL)
 =====================================
 
-[![Build Status](https://travis-ci.org/alibaba/transmittable-thread-local.svg?branch=master)](https://travis-ci.org/alibaba/transmittable-thread-local)
-[![Windows Build Status](https://img.shields.io/appveyor/ci/oldratlee/transmittable-thread-local/master.svg?label=windows%20build)](https://ci.appveyor.com/project/oldratlee/transmittable-thread-local)
-[![Coverage Status](https://img.shields.io/codecov/c/github/alibaba/transmittable-thread-local/master.svg)](https://codecov.io/gh/alibaba/transmittable-thread-local/branch/master)
+[![Build Status](https://travis-ci.org/alibaba/transmittable-thread-local.svg?branch=v2.4.0)](https://travis-ci.org/alibaba/transmittable-thread-local)
+[![Windows Build Status](https://img.shields.io/appveyor/ci/oldratlee/transmittable-thread-local/v2.4.0.svg?label=windows%20build)](https://ci.appveyor.com/project/oldratlee/transmittable-thread-local)
+[![Coverage Status](https://img.shields.io/codecov/c/github/alibaba/transmittable-thread-local/v2.4.0.svg)](https://codecov.io/gh/alibaba/transmittable-thread-local/branch/v2.4.0)
 [![Maven Central](https://img.shields.io/maven-central/v/com.alibaba/transmittable-thread-local.svg)](http://search.maven.org/#search%7Cgav%7C1%7Cg%3A%22com.alibaba%22%20AND%20a%3A%22transmittable-thread-local%22)
 [![GitHub release](https://img.shields.io/github/release/alibaba/transmittable-thread-local.svg)](https://github.com/alibaba/transmittable-thread-local/releases)  
 [![Join the chat at https://gitter.im/alibaba/transmittable-thread-local](https://badges.gitter.im/alibaba/transmittable-thread-local.svg)](https://gitter.im/alibaba/transmittable-thread-local?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
@@ -252,7 +252,7 @@ java -Xbootclasspath/a:transmittable-thread-local-2.0.0.jar \
 :electric_plug: Java API Docs
 ======================
 
-当前版本的Java API文档地址： <http://alibaba.github.io/transmittable-thread-local/apidocs/>
+当前版本的Java API文档地址： <http://alibaba.github.io/transmittable-thread-local/apidocs/2.4.0/index.html>
 
 :cookie: Maven依赖
 =====================================
@@ -263,7 +263,7 @@ java -Xbootclasspath/a:transmittable-thread-local-2.0.0.jar \
 <dependency>
 	<groupId>com.alibaba</groupId>
 	<artifactId>transmittable-thread-local</artifactId>
-	<version>2.3.0</version>
+	<version>2.4.0</version>
 </dependency>
 ```
 

pom.xml

@@ -5,7 +5,7 @@
 
 	<groupId>com.alibaba</groupId>
 	<artifactId>transmittable-thread-local</artifactId>
-	<version>2.4.0-SNAPSHOT</version>
+	<version>2.4.0</version>
 	<packaging>jar</packaging>
 	<name>TransmittableThreadLocal(TTL)</name>
 	<description>The missing std Java™ lib(simple &amp; 0-dependency) for framework/middleware, transmitting ThreadLocal value between threads even using thread pool like components.</description>