diff --git a/assembly/pom.xml b/assembly/pom.xml
index 539202b..9f2e2d9 100644
--- a/assembly/pom.xml
+++ b/assembly/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>
diff --git a/cache/pom.xml b/cache/pom.xml
index 5e38ed2..c6c3636 100644
--- a/cache/pom.xml
+++ b/cache/pom.xml
@@ -15,8 +15,7 @@
  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/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">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>kylin-cache</artifactId>
@@ -27,7 +26,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-common/pom.xml b/core-common/pom.xml
index cc0d55d..28ed641 100644
--- a/core-common/pom.xml
+++ b/core-common/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-cube/pom.xml b/core-cube/pom.xml
index dc40072..c229ff6 100644
--- a/core-cube/pom.xml
+++ b/core-cube/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-dictionary/pom.xml b/core-dictionary/pom.xml
index 06be88c..c955736 100644
--- a/core-dictionary/pom.xml
+++ b/core-dictionary/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-job/pom.xml b/core-job/pom.xml
index d83b02f..1b8a1ff 100644
--- a/core-job/pom.xml
+++ b/core-job/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-metadata/pom.xml b/core-metadata/pom.xml
index 8666d2d..722c7aa 100644
--- a/core-metadata/pom.xml
+++ b/core-metadata/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-metrics/pom.xml b/core-metrics/pom.xml
index 76b5286..e15541f 100644
--- a/core-metrics/pom.xml
+++ b/core-metrics/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/core-storage/pom.xml b/core-storage/pom.xml
index 06233fe..fab7165 100644
--- a/core-storage/pom.xml
+++ b/core-storage/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/datasource-sdk/pom.xml b/datasource-sdk/pom.xml
index cd5c551..ef1faaa 100644
--- a/datasource-sdk/pom.xml
+++ b/datasource-sdk/pom.xml
@@ -17,9 +17,7 @@
  limitations under the License.
 -->
 
-<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">
+<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">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>kylin-datasource-sdk</artifactId>
@@ -28,7 +26,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/engine-mr/pom.xml b/engine-mr/pom.xml
index 0b185b1..278b9bc 100644
--- a/engine-mr/pom.xml
+++ b/engine-mr/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/engine-spark/pom.xml b/engine-spark/pom.xml
index 5c88001..bf6f1fc 100644
--- a/engine-spark/pom.xml
+++ b/engine-spark/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/jdbc/pom.xml b/jdbc/pom.xml
index 255092e..7cff5b9 100644
--- a/jdbc/pom.xml
+++ b/jdbc/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>
diff --git a/kylin-it/pom.xml b/kylin-it/pom.xml
index d880b9b..324419a 100644
--- a/kylin-it/pom.xml
+++ b/kylin-it/pom.xml
@@ -29,13 +29,13 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>
         <hdp.version />
         <fastBuildMode />
-        <simpleBuildMode/>
+        <simpleBuildMode />
         <buildCubeUsingProvidedData />
         <engineType />
     </properties>
diff --git a/metrics-reporter-hive/pom.xml b/metrics-reporter-hive/pom.xml
index 0c79050..993ad7d 100644
--- a/metrics-reporter-hive/pom.xml
+++ b/metrics-reporter-hive/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/metrics-reporter-kafka/pom.xml b/metrics-reporter-kafka/pom.xml
index 5f16ec3..2b35a8b 100644
--- a/metrics-reporter-kafka/pom.xml
+++ b/metrics-reporter-kafka/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/pom.xml b/pom.xml
index 6f07d37..ffc792d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,22 +16,21 @@
  See the License for the specific language governing permissions and
  limitations under the License.
 -->
-<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">
+<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">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache</groupId>
     <artifactId>apache</artifactId>
     <version>19</version>
-    <relativePath/>
+    <relativePath />
     <!-- no parent resolution -->
   </parent>
 
   <groupId>org.apache.kylin</groupId>
   <artifactId>kylin</artifactId>
   <packaging>pom</packaging>
-  <version>3.0.0-SNAPSHOT</version>
+  <version>3.0.0</version>
 
   <name>Apache Kylin</name>
   <url>http://kylin.apache.org</url>
@@ -229,7 +228,7 @@
     <developerConnection>scm:git:ssh://git@github.com/apache/kylin.git
     </developerConnection>
     <url>https://github.com/apache/kylin</url>
-    <tag>HEAD</tag>
+    <tag>kylin-3.0.0</tag>
   </scm>
 
   <dependencyManagement>
@@ -1871,7 +1870,7 @@
                         </goals>
                       </pluginExecutionFilter>
                       <action>
-                        <ignore/>
+                        <ignore />
                       </action>
                     </pluginExecution>
                   </pluginExecutions>
diff --git a/query/pom.xml b/query/pom.xml
index c8ce8ba..f402703 100644
--- a/query/pom.xml
+++ b/query/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/server-base/pom.xml b/server-base/pom.xml
index 2b5cd74..d183cd0 100644
--- a/server-base/pom.xml
+++ b/server-base/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/server/pom.xml b/server/pom.xml
index ad68daa..2c8604e 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/source-hive/pom.xml b/source-hive/pom.xml
index e242f0a..0c4e132 100644
--- a/source-hive/pom.xml
+++ b/source-hive/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/source-jdbc/pom.xml b/source-jdbc/pom.xml
index b7633d3..964d027 100644
--- a/source-jdbc/pom.xml
+++ b/source-jdbc/pom.xml
@@ -17,8 +17,7 @@
  limitations under the License.
 -->
 
-<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">
+<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">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>kylin-source-jdbc</artifactId>
@@ -29,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/source-kafka/pom.xml b/source-kafka/pom.xml
index 3d93f8c..04123fd 100644
--- a/source-kafka/pom.xml
+++ b/source-kafka/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/storage-hbase/pom.xml b/storage-hbase/pom.xml
index 0403700..134d06f 100644
--- a/storage-hbase/pom.xml
+++ b/storage-hbase/pom.xml
@@ -17,8 +17,7 @@
  limitations under the License.
 -->
 
-<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">
+<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">
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>kylin-storage-hbase</artifactId>
@@ -29,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>
@@ -143,8 +142,7 @@
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <shadedClassifierName>coprocessor</shadedClassifierName>
                             <transformers>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                             </transformers>
                             <artifactSet>
                                 <includes>
diff --git a/storage-stream/pom.xml b/storage-stream/pom.xml
index 9697b29..806fd1e 100644
--- a/storage-stream/pom.xml
+++ b/storage-stream/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>kylin-storage-stream</artifactId>
diff --git a/stream-coordinator/pom.xml b/stream-coordinator/pom.xml
index 9911ec5..7481d6d 100644
--- a/stream-coordinator/pom.xml
+++ b/stream-coordinator/pom.xml
@@ -17,12 +17,11 @@
  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>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>kylin-stream-coordinator</artifactId>
diff --git a/stream-core/pom.xml b/stream-core/pom.xml
index 4cd1dcd..c2b9694 100644
--- a/stream-core/pom.xml
+++ b/stream-core/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>kylin-stream-core</artifactId>
diff --git a/stream-receiver/pom.xml b/stream-receiver/pom.xml
index bdcd6da..5609832 100644
--- a/stream-receiver/pom.xml
+++ b/stream-receiver/pom.xml
@@ -17,12 +17,11 @@
  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>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>kylin-stream-receiver</artifactId>
@@ -254,14 +253,11 @@
                             <shadedArtifactAttached>true</shadedArtifactAttached>
                             <shadedClassifierName>all</shadedClassifierName>
                             <transformers>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                     <resource>META-INF/spring.handlers</resource>
                                 </transformer>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                     <resource>META-INF/spring.schemas</resource>
                                 </transformer>
                             </transformers>
diff --git a/stream-source-kafka/pom.xml b/stream-source-kafka/pom.xml
index a77ef7f..e0a3f5c 100644
--- a/stream-source-kafka/pom.xml
+++ b/stream-source-kafka/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>kylin-stream-source-kafka</artifactId>
diff --git a/tomcat-ext/pom.xml b/tomcat-ext/pom.xml
index 75c7da9..3c4c888 100644
--- a/tomcat-ext/pom.xml
+++ b/tomcat-ext/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.kylin</groupId>
         <artifactId>kylin</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <dependencies>
diff --git a/tool-assembly/pom.xml b/tool-assembly/pom.xml
index caa6288..d84fb48 100644
--- a/tool-assembly/pom.xml
+++ b/tool-assembly/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>
diff --git a/tool/pom.xml b/tool/pom.xml
index 77974c7..4099a1e 100644
--- a/tool/pom.xml
+++ b/tool/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <artifactId>kylin</artifactId>
         <groupId>org.apache.kylin</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
     </parent>
 
     <properties>