diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3bd1a79f..8511dfa3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## milvus-sdk-java 2.5.15 (2025-12-01)
+### Breaking Change
+- Rename "Stage" to "Volume" for BulkWriter
+
 ## milvus-sdk-java 2.5.14 (2025-09-30)
 ### Improvement
 - Add parameter "databaseName" for the following requests: GetCollectionStatsReq, GetLoadStateReq, HasCollectionReq, ListCollectionsReq, ReleaseCollectionReq, RenameCollectionReq, DropIndexReq, ListIndexesReq, CreatePartitionReq, DropPartitionReq, GetPartitinStatsReq, HasPartitionReq, ListPartitionsReq, LoadPartitionsReq, ReleasePartitionsReq, CompactReq, FlushReq, GetPErsistentSegmentInfoReq, GetQuerySegmentInfoReq,
diff --git a/README.md b/README.md
index eaba968c5..3c59fd3a7 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ The following table shows compatibilities between Milvus and Java SDK.
 |    >= 2.2.9    |  2.2.7 ~ 2.2.15  |
 |     2.3.x      |      2.3.11      |
 |     2.4.x      |      2.4.11      |
-|     2.5.x      |      2.5.14      |
+|     2.5.x      |      2.5.15      |
 
 ### Install Java SDK
 
@@ -33,20 +33,20 @@ You can use **Apache Maven** or **Gradle** add Milvus SDK to your project.
         <dependency>
             <groupId>io.milvus</groupId>
             <artifactId>milvus-sdk-java</artifactId>
-            <version>2.5.14</version>
+            <version>2.5.15</version>
         </dependency>
        ```
 
    - Gradle/Groovy
 
         ```groovy
-        implementation 'io.milvus:milvus-sdk-java:2.5.14'
+        implementation 'io.milvus:milvus-sdk-java:2.5.15'
         ```
 
    - Gradle/Kotlin
 
         ```kotlin
-        implementation("io.milvus:milvus-sdk-java:2.5.14")
+        implementation("io.milvus:milvus-sdk-java:2.5.15")
         ```
 
 From v2.5.2, milvus Java SDK is split into two packages: milvus-sdk-java and milvus-sdk-java-bulkwriter, because BulkWriter requires quite a lot of dependencies. If you don't need BulkWriter tool, you can ignore the milvus-sdk-java-bulkwriter package.
@@ -58,20 +58,20 @@ To use BulkWriter, import milvus-sdk-java-bulkwriter to your project.
      <dependency>
          <groupId>io.milvus</groupId>
          <artifactId>milvus-sdk-java-bulkwriter</artifactId>
-         <version>2.5.14</version>
+         <version>2.5.15</version>
      </dependency>
     ```
 
 - Gradle/Groovy
 
      ```groovy
-     implementation 'io.milvus:milvus-sdk-java-bulkwriter:2.5.14'
+     implementation 'io.milvus:milvus-sdk-java-bulkwriter:2.5.15'
      ```
 
 - Gradle/Kotlin
 
      ```kotlin
-     implementation("io.milvus:milvus-sdk-java-bulkwriter:2.5.14")
+     implementation("io.milvus:milvus-sdk-java-bulkwriter:2.5.15")
      ```     
    
 ### Examples
diff --git a/examples/pom.xml b/examples/pom.xml
index 03241aebf..aeeb2b001 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -42,7 +42,7 @@
     </build>
 
     <properties>
-        <revision>2.5.14</revision>
+        <revision>2.5.15</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
diff --git a/pom.xml b/pom.xml
index b3e060dfb..a4583e2d2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,7 +82,7 @@
     </repositories>
 
     <properties>
-        <revision>2.5.14</revision>
+        <revision>2.5.15</revision>
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>