diff --git a/broker/pom.xml b/broker/pom.xml
index 91cfe0c46bc..34cdbcf77d6 100644
--- a/broker/pom.xml
+++ b/broker/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/client/pom.xml b/client/pom.xml
index 3a0f6ae02ba..9c0030dc902 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
 
diff --git a/common/pom.xml b/common/pom.xml
index 549dad9735b..134770f5af2 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/pom.xml b/example/pom.xml
index c6dbf676b02..602218c4afe 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/filtersrv/pom.xml b/filtersrv/pom.xml
index b03135737ce..1716a087618 100644
--- a/filtersrv/pom.xml
+++ b/filtersrv/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/namesrv/pom.xml b/namesrv/pom.xml
index c505bfccda0..b03075ae6db 100644
--- a/namesrv/pom.xml
+++ b/namesrv/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index 8b8c4684268..afe0ecd279f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,8 +16,7 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 
     <parent>
         <groupId>org.apache</groupId>
@@ -30,7 +29,7 @@
     <inceptionYear>2012</inceptionYear>
     <groupId>org.apache.rocketmq</groupId>
     <artifactId>rocketmq-all</artifactId>
-    <version>4.0.0-SNAPSHOT</version>
+    <version>4.0.0-incubating</version>
     <packaging>pom</packaging>
     <name>Apache RocketMQ ${project.version}</name>
     <url>http://rocketmq.incubator.apache.org/</url>
@@ -44,7 +43,8 @@
         <connection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-rocketmq.git</connection>
         <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-rocketmq.git
         </developerConnection>
-    </scm>
+      <tag>rocketmq-4.0.0-incubating</tag>
+  </scm>
 
     <mailingLists>
         <mailingList>
@@ -211,7 +211,7 @@
                 </executions>
                 <configuration>
                     <rules>
-                        <banCircularDependencies/>
+                        <banCircularDependencies />
                     </rules>
                     <fail>true</fail>
                 </configuration>
diff --git a/remoting/pom.xml b/remoting/pom.xml
index df46c353853..f49854b78bf 100644
--- a/remoting/pom.xml
+++ b/remoting/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/srvutil/pom.xml b/srvutil/pom.xml
index 4850b1e90b4..03e898be90c 100644
--- a/srvutil/pom.xml
+++ b/srvutil/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/store/pom.xml b/store/pom.xml
index 083d4148ef0..1d421278aee 100644
--- a/store/pom.xml
+++ b/store/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/test/pom.xml b/test/pom.xml
index b0905989f11..b1d583ae935 100644
--- a/test/pom.xml
+++ b/test/pom.xml
@@ -16,13 +16,11 @@
   ~  limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>rocketmq-all</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/tools/pom.xml b/tools/pom.xml
index 1f8f4a93dbb..ff8658af1f3 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -15,12 +15,11 @@
   limitations under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-incubating</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>