Update About.md

Author: AnthonyTsu1984

Diff for: API_Reference/milvus-sdk-java/v2.4.x/About.md

@@ -45,20 +45,20 @@ You can use **[Apache Maven](https://maven.apache.org/install.html)** or **[Grad
  <dependency>
      <groupId>io.milvus</groupId>
      <artifactId>milvus-sdk-java</artifactId>
-     <version>2.4.4</version>
+     <version>2.4.8</version>
  </dependency>
 ```
 
 - Gradle/Groovy
 
 ```plaintext
-implementation 'io.milvus:milvus-sdk-java:2.4.4'
+implementation 'io.milvus:milvus-sdk-java:2.4.8'
 ```
 
 - Gradle/Kotlin
 
 ```sql
-implementation("io.milvus:milvus-sdk-java:2.4.4")
+implementation("io.milvus:milvus-sdk-java:2.4.8")
 ```
 
 ## **Contributing**