diff --git a/README-CN.md b/README-CN.md
index bd1df0dd..6f09059c 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -1,6 +1,6 @@
 # IOT-COMMUNICATION
 
-[![Maven-v1.4.1](https://img.shields.io/badge/Maven-v1.4.1-brightgreen)](https://mvnrepository.com/artifact/com.github.xingshuangs/iot-communication)
+[![Maven-v1.4.2](https://img.shields.io/badge/Maven-v1.4.2-brightgreen)](https://mvnrepository.com/artifact/com.github.xingshuangs/iot-communication)
 ![Language-java8](https://img.shields.io/badge/Language-java8-blue)
 ![Idea-2022.02.03](https://img.shields.io/badge/Idea-2022.02.03-lightgrey)
 ![CopyRight-Oscura](https://img.shields.io/badge/CopyRight-Oscura-yellow)
@@ -29,7 +29,7 @@
 <dependency>
     <groupId>com.github.xingshuangs</groupId>
     <artifactId>iot-communication</artifactId>
-    <version>1.4.1</version>
+    <version>1.4.2</version>
 </dependency>
 ```
 
diff --git a/README.md b/README.md
index aff97db2..0f541961 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # IOT-COMMUNICATION
 
-[![Maven-v1.4.1](https://img.shields.io/badge/Maven-v1.4.1-brightgreen)](https://mvnrepository.com/artifact/com.github.xingshuangs/iot-communication)
+[![Maven-v1.4.2](https://img.shields.io/badge/Maven-v1.4.2-brightgreen)](https://mvnrepository.com/artifact/com.github.xingshuangs/iot-communication)
 ![Language-java8](https://img.shields.io/badge/Language-java8-blue)
 ![Idea-2022.02.03](https://img.shields.io/badge/Idea-2022.02.03-lightgrey)
 ![CopyRight-Oscura](https://img.shields.io/badge/CopyRight-Oscura-yellow)
@@ -29,7 +29,7 @@ Add the dependency to pom.xml in the JAVA project.
 <dependency>
     <groupId>com.github.xingshuangs</groupId>
     <artifactId>iot-communication</artifactId>
-    <version>1.4.1</version>
+    <version>1.4.2</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 2b5c1501..e6151d92 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,11 +6,11 @@
 
     <groupId>com.github.xingshuangs</groupId>
     <artifactId>iot-communication</artifactId>
-    <version>1.4.1</version>
+    <version>1.4.2</version>
     <packaging>jar</packaging>
 
     <name>iot-communication</name>
-    <description>iot-communication is a tool 目前支持S7、ModbusTCP通信协议、字节数据转换、RTSP视频监控</description>
+    <description>iot-communication is a tool 目前支持S7协议、Modbus通信协议、字节数据转换、RTSP-WEB视频监控</description>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/tips/changeLog.md b/tips/changeLog.md
index a65b8ed0..4c76f53a 100644
--- a/tips/changeLog.md
+++ b/tips/changeLog.md
@@ -1,3 +1,16 @@
+## v1.4.2
+- 更新时间：2023.08.17
+- S7添加非注解形式的批量读写，可以进行多地址的任意组合，通过S7Parameter配置参数
+- S7重构Datum数据类型，实现上传功能（200smart测试成功），下载功能未测试成功，可能PLC的约束，待研究
+- S7修复字符串读写编码转换问题，采用GB2312
+- S7修复200smart-PLC读取字符串和1200-PLC等不一样的问题
+- ModbusTcp调整通信数据解析流程
+- Modbus添加ModbusRtuOverTcp和ModbusAsciiOverTcp
+- RTSP修复通信过程中因为缓存太小，导致报文解析错误的问题
+- RtspFMp4Proxy修复缓存线程安全问题
+- TcpServerBasic中的CompletableFuture替换为Thread
+- 字节数组解析中添加自定义字节数组数据提取的功能，通过ByteArrayParameter配置参数进行批量读取
+
 ## v1.4.1
 - 更新时间：2023.07.09
 - RtspFMp4Proxy添加数据缓存，增加缓存大小，用于重新数据排序，同时将关键帧和普通帧区分开