diff --git a/.gitattributes b/.gitattributes
new file mode 100755
index 0000000000..e66a894fb1
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,14 @@
+# ignored file when package to source.tgz
+.gitattributes export-ignore
+.gitignore export-ignore
+.asf.yaml export-ignore
+checkstyle.xml export-ignore
+apache-release.sh export-ignore
+.licenserc.yaml export-ignore
+.editorconfig export-ignore
+
+# ignored directory
+.github/ export-ignore
+hugegraph-dist/scripts/ export-ignore
+style/ export-ignore
+#assembly/ export-ignore
diff --git a/.gitignore b/.gitignore
index 782c85270f..47bbf40170 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,6 @@ node_modules
 upload-files/
 demo*
 gen-java
-build
 *.class
 
 ### STS ###
@@ -29,9 +28,9 @@ build
 ### NetBeans ###
 /nbproject/private/
 /nbbuild/
-/dist/
 /nbdist/
 /.nb-gradle/
+dist/
 build/
 
 ### VS Code ###
@@ -57,15 +56,17 @@ build/
 *.pyc
 
 # maven ignore
+apache-hugegraph-incubating-*/
 output/
 *.war
 *.zip
 *.tar
-*.tar.gz
+*.tar.gz*
 tree.txt
 *.versionsBackup
 .flattened-pom.xml
 
+
 # eclipse ignore
 .settings/
 
diff --git a/.licenserc.yaml b/.licenserc.yaml
index 953dad4f02..e79935c6fd 100644
--- a/.licenserc.yaml
+++ b/.licenserc.yaml
@@ -53,6 +53,7 @@ header: # `header` section is configurations for source codes license header.
 
   paths-ignore: # `paths-ignore` are the path list that will be ignored by license-eye.
     - '.gitignore'
+    - '.gitattributes'
     - 'LICENSE'
     - '**/*.versionsBackup'
     - '**/*.versionsBackup'
diff --git a/BUILDING.md b/BUILDING.md
index 3ac025a691..d99dda447c 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -3,7 +3,7 @@ Building hugegraph
 
 Required:
 
-* Java 8 (0.9 and later)
+* Java 8/11
 * Maven
 
 To build without executing tests:
@@ -38,8 +38,7 @@ To build without executing tests:
 
 1. Click on "File" -> "Open", choose your project location.
 2. Open maven view by click "View" -> "Tool Windows" -> "Maven Projects".
-3. Choose root module "hugegraph: Distributed Graph Database", unfold the 
-menu of "Lifecycle".
+3. Choose root module "hugegraph: Distributed Graph Database", unfold the menu of "Lifecycle".
 4. Click the "Toggle 'Skip Tests' Mode" button which is located on the top
 navibar of "Maven Projects" window to skip tests.
-5. Double click "package" or "install" to build project.
\ No newline at end of file
+5. Double click "package" or "install" to build project.
diff --git a/build.sh b/build.sh
deleted file mode 100644
index 43191e263a..0000000000
--- a/build.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env bash
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-export MAVEN_HOME=/home/scmtools/buildkit/maven/apache-maven-3.3.9/
-export JAVA_HOME=/home/scmtools/buildkit/java/jdk1.8.0_25/
-export PATH=$JAVA_HOME/bin:$MAVEN_HOME/bin:$PATH
-
-mvn clean compile
-
diff --git a/hugegraph-api/pom.xml b/hugegraph-api/pom.xml
index 650805c2b0..81077464bb 100644
--- a/hugegraph-api/pom.xml
+++ b/hugegraph-api/pom.xml
@@ -148,27 +148,12 @@
     <build>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <filesets>
-                        <fileset>
-                            <directory>${top.level.dir}</directory>
-                            <includes>
-                                <include>*.tar.gz</include>
-                            </includes>
-                            <followSymlinks>false</followSymlinks>
-                        </fileset>
-                        <fileset>
-                            <directory>${final.name}</directory>
-                        </fileset>
-                    </filesets>
-                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
-                <version>3.0.2</version>
                 <configuration>
                     <archive>
                         <index>true</index>
diff --git a/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java b/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java
index cb4854a85e..333cc74827 100644
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java
@@ -127,8 +127,8 @@ public String create(@Context HugeConfig config,
 
     /**
      * Batch update steps like:
-     * 1. Get all newVertices' ID & combine first
-     * 2. Get all oldVertices & update
+     * 1. Get all newVertices' ID &amp; combine first
+     * 2. Get all oldVertices &amp; update
      * 3. Add the final vertex together
      */
     @PUT
diff --git a/hugegraph-cassandra/pom.xml b/hugegraph-cassandra/pom.xml
index 54734959b6..ac9e3f4e1b 100644
--- a/hugegraph-cassandra/pom.xml
+++ b/hugegraph-cassandra/pom.xml
@@ -99,22 +99,8 @@
     <build>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <filesets>
-                        <fileset>
-                            <directory>${top.level.dir}</directory>
-                            <includes>
-                                <include>*.tar.gz</include>
-                            </includes>
-                            <followSymlinks>false</followSymlinks>
-                        </fileset>
-                        <fileset>
-                            <directory>${final.name}</directory>
-                        </fileset>
-                    </filesets>
-                </configuration>
             </plugin>
         </plugins>
     </build>
diff --git a/hugegraph-core/pom.xml b/hugegraph-core/pom.xml
index ccf6bec45a..e0e3a887c6 100644
--- a/hugegraph-core/pom.xml
+++ b/hugegraph-core/pom.xml
@@ -291,22 +291,8 @@
             </plugin>
 
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <filesets>
-                        <fileset>
-                            <directory>${top.level.dir}</directory>
-                            <includes>
-                                <include>*.tar.gz</include>
-                            </includes>
-                            <followSymlinks>false</followSymlinks>
-                        </fileset>
-                        <fileset>
-                            <directory>${final.name}</directory>
-                        </fileset>
-                    </filesets>
-                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
diff --git a/hugegraph-dist/pom.xml b/hugegraph-dist/pom.xml
index 91a63e51d6..ad5d5552d3 100644
--- a/hugegraph-dist/pom.xml
+++ b/hugegraph-dist/pom.xml
@@ -149,14 +149,15 @@
             </plugin>
 
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
                 <configuration>
                     <filesets>
                         <fileset>
                             <directory>${top.level.dir}</directory>
                             <includes>
                                 <include>*.tar.gz</include>
+                                <include>.flattened-pom.xml</include>
                                 <!--<include>${final.name}/**</include>-->
                             </includes>
                             <followSymlinks>false</followSymlinks>
@@ -178,7 +179,7 @@
                         </goals>
                         <configuration>
                             <target>
-                                <tar destfile="${top.level.dir}/${final.name}.tar.gz" 
+                                <tar destfile="${final.destfile}"
                                      basedir="${top.level.dir}"  
                                      includes="${final.name}/**"
                                      compression="gzip"/>
diff --git a/hugegraph-dist/scripts/apache-release.sh b/hugegraph-dist/scripts/apache-release.sh
new file mode 100755
index 0000000000..376d26ee68
--- /dev/null
+++ b/hugegraph-dist/scripts/apache-release.sh
@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+GROUP="hugegraph"
+# current repository name
+REPO="${GROUP}"
+# release version (input by committer)
+RELEASE_VERSION=$1
+USERNAME=$2
+PASSWORD=$3
+# git release branch (check it carefully)
+GIT_BRANCH="release-${RELEASE_VERSION}"
+
+RELEASE_VERSION=${RELEASE_VERSION:?"Please input the release version behind script"}
+
+WORK_DIR=$(
+  cd "$(dirname "$0")" || exit
+  pwd
+)
+cd "${WORK_DIR}" || exit
+echo "In the work dir: $(pwd)"
+
+# clean old dir then build a new one
+rm -rf dist && mkdir -p dist/apache-${REPO}
+
+# step1: package the source code
+cd ../../
+git archive --format=tar.gz \
+  --output="hugegraph-dist/scripts/dist/apache-${REPO}/apache-${REPO}-incubating-${RELEASE_VERSION}-src.tar.gz" \
+  --prefix=apache-${REPO}-"${RELEASE_VERSION}"-incubating-src/ "${GIT_BRANCH}" || exit
+cd - || exit
+
+# step2: copy the binary file (Optional)
+# Note: it's optional for project to generate binary package (skip this step if not need)
+cp -v ../../apache-${REPO}-incubating-"${RELEASE_VERSION}".tar.gz \
+  dist/apache-${REPO} || exit
+
+# step3: sign + hash
+##### 3.1 sign in source & binary package
+gpg --version 1>/dev/null || exit
+cd ./dist/apache-${REPO} || exit
+for i in *.tar.gz; do
+  echo "$i" && eval gpg "${GPG_OPT}" --armor --output "$i".asc --detach-sig "$i"
+done
+
+##### 3.2 generate SHA512 file
+shasum --version 1>/dev/null || exit
+for i in *.tar.gz; do
+  echo "$i" && shasum -a 512 "$i" >"$i".sha512
+done
+
+#### 3.3 check signature & sha512
+for i in *.tar.gz; do
+  echo "$i"
+  eval gpg "${GPG_OPT}" --verify "$i".asc "$i" || exit
+done
+
+for i in *.tar.gz; do
+  echo "$i"
+  shasum -a 512 --check "$i".sha512 || exit
+done
+
+# step4: upload to Apache-SVN
+##### 4.1 download apache-SVN
+SVN_DIR="${GROUP}-svn-dev"
+cd ../
+rm -rfv ${SVN_DIR}
+
+svn co "https://dist.apache.org/repos/dist/dev/incubator/${GROUP}" ${SVN_DIR}
+
+##### 4.2 copy new release package to svn directory
+mkdir -p ${SVN_DIR}/"${RELEASE_VERSION}"
+cp -v apache-${REPO}/*tar.gz* "${SVN_DIR}/${RELEASE_VERSION}"
+cd ${SVN_DIR} || exit
+
+##### 4.3 check status & add files
+svn status
+svn add --parents "${RELEASE_VERSION}"/apache-${REPO}-*
+## check status again
+svn status
+
+##### 4.4 commit & push files
+if [ "$USERNAME" = "" ]; then
+  svn commit -m "submit files for ${REPO} ${RELEASE_VERSION}" || exit
+else
+  svn commit -m "submit files for ${REPO} ${RELEASE_VERSION}" --username "${USERNAME}" \
+    --password "${PASSWORD}" || exit
+fi
+
+echo "Finished all, please check all steps in script manually again!"
diff --git a/hugegraph-example/pom.xml b/hugegraph-example/pom.xml
index bd1d02acc4..781f131802 100644
--- a/hugegraph-example/pom.xml
+++ b/hugegraph-example/pom.xml
@@ -35,30 +35,13 @@
             <version>${revision}</version>
         </dependency>
     </dependencies>
+
     <build>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <filesets>
-                        <fileset>
-                            <directory>${top.level.dir}</directory>
-                            <excludes>
-                                <exclude>${final.name}/**</exclude>
-                                <exclude>*.tar.gz</exclude>
-                                <exclude>*.zip</exclude>
-                                <exclude>*.tar</exclude>
-                            </excludes>
-                            <followSymlinks>false</followSymlinks>
-                        </fileset>
-                        <fileset>
-                            <directory>${final.name}</directory>
-                        </fileset>
-                    </filesets>
-                </configuration>
             </plugin>
         </plugins>
     </build>
-
 </project>
diff --git a/hugegraph-style.xml b/hugegraph-style.xml
index 440486babc..8536d5154c 100644
--- a/hugegraph-style.xml
+++ b/hugegraph-style.xml
@@ -14,6 +14,8 @@
   See the License for the specific language governing permissions and
   limitations under the License.
   -->
+
+<!-- This file could be imported in IDEA for correct code-style -->
 <code_scheme name="hugegraph-style" version="173">
   <option name="LINE_SEPARATOR" value="&#xA;" />
   <option name="RIGHT_MARGIN" value="100" />
diff --git a/hugegraph-test/pom.xml b/hugegraph-test/pom.xml
index ac638464d5..7d6d8a36ef 100644
--- a/hugegraph-test/pom.xml
+++ b/hugegraph-test/pom.xml
@@ -177,25 +177,8 @@
                 </executions>
             </plugin>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-clean-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <filesets>
-                        <fileset>
-                            <directory>${top.level.dir}</directory>
-                            <excludes>
-                                <exclude>${final.name}/**</exclude>
-                                <exclude>*.tar.gz</exclude>
-                                <exclude>*.zip</exclude>
-                                <exclude>*.tar</exclude>
-                            </excludes>
-                            <followSymlinks>false</followSymlinks>
-                        </fileset>
-                        <fileset>
-                            <directory>${final.name}</directory>
-                        </fileset>
-                    </filesets>
-                </configuration>
             </plugin>
             <plugin>
                 <groupId>org.jacoco</groupId>
diff --git a/pom.xml b/pom.xml
index 881b1a6866..837742018e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,27 +39,62 @@
     <licenses>
         <license>
             <name>The Apache Software License, Version 2.0</name>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+            <url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
             <distribution>repo</distribution>
         </license>
     </licenses>
 
-    <prerequisites>
-        <maven>3.5.0</maven>
-    </prerequisites>
+    <developers>
+      <developer>
+        <id>Apache Hugegraph(incubating)</id>
+        <email>dev-subscribe@hugegraph.apache.org</email>
+        <url>https://hugegraph.apache.org/</url>
+      </developer>
+    </developers>
+
+    <mailingLists>
+      <mailingList>
+        <name>Development Mailing List</name>
+        <subscribe>dev-subscribe@hugegraph.apache.org</subscribe>
+        <unsubscribe>dev-unsubscribe@hugegraph.apache.org</unsubscribe>
+        <post>dev@hugegraph.incubator.apache.org</post>
+      </mailingList>
+      <mailingList>
+        <name>Commits List</name>
+        <subscribe>commits-subscribe@hugegraph.apache.org</subscribe>
+        <unsubscribe>commits-unsubscribe@hugegraph.apache.org</unsubscribe>
+        <post>commits@hugegraph.apache.org</post>
+      </mailingList>
+      <mailingList>
+        <name>Issues List</name>
+        <subscribe>issues-subscribe@hugegraph.apache.org</subscribe>
+        <unsubscribe>issues-unsubscribe@hugegraph.apache.org</unsubscribe>
+        <post>issues@hugegraph.apache.org</post>
+      </mailingList>
+    </mailingLists>
+
+    <issueManagement>
+      <system>Github Issues</system>
+      <url>https://github.com/apache/hugegraph/issues</url>
+    </issueManagement>
 
     <scm>
         <url>https://github.com/apache/hugegraph</url>
-        <connection>https://github.com/apache/hugegraph</connection>
-        <developerConnection>https://github.com/apache/hugegraph</developerConnection>
+        <connection>scm:git:https://github.com/apache/hugegraph.git</connection>
+        <developerConnection>scm:git:https://github.com/apache/hugegraph.git</developerConnection>
     </scm>
 
+    <prerequisites>
+        <maven>3.5.0</maven>
+    </prerequisites>
+
     <properties>
         <revision>1.0.0</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <top.level.dir>${project.basedir}/..</top.level.dir>
         <release.name>hugegraph</release.name>
         <final.name>apache-${release.name}-incubating-${project.version}</final.name>
+        <final.destfile>${top.level.dir}/${final.name}.tar.gz</final.destfile>
         <compiler.source>1.8</compiler.source>
         <compiler.target>1.8</compiler.target>
         <slf4j.version>1.7.5</slf4j.version>
@@ -294,6 +329,7 @@
     <build>
         <pluginManagement>
             <plugins>
+                <!-- TODO: move necessary plugin out of pluginManagement? -->
                 <plugin>
                     <groupId>org.codehaus.mojo</groupId>
                     <artifactId>license-maven-plugin</artifactId>
@@ -340,8 +376,8 @@
                     </configuration>
                 </plugin>
                 <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-clean-plugin</artifactId>
-                    <version>3.0.0</version>
                     <configuration>
                         <filesets>
                             <fileset>
@@ -349,7 +385,7 @@
                                 <includes>
                                     <include>*.tar</include>
                                     <include>*.tar.gz</include>
-                                    <include>*.zip</include>
+                                    <include>.flattened-pom.xml</include>
                                     <include>${final.name}/**</include>
                                 </includes>
                                 <followSymlinks>false</followSymlinks>
@@ -388,8 +424,10 @@
                             <exclude>CONFIG.ini</exclude>
                             <exclude>GROUPS</exclude>
                             <exclude>OWNERS</exclude>
-                            <!-- GitHub -->
+                            <!-- Git & GitHub  -->
                             <exclude>.github/**/*</exclude>
+                            <exclude>.gitignore</exclude>
+                            <exclude>.gitattributes</exclude>
                             <!-- Intellij -->
                             <exclude>**/*.iml</exclude>
                             <exclude>**/*.iws</exclude>
@@ -476,7 +514,6 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>2.20</version>
                         <executions>
                             <execution>
                                 <id>core-test</id>
@@ -497,7 +534,6 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>2.20</version>
                         <executions>
                             <execution>
                                 <id>unit-test</id>
@@ -518,7 +554,6 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>2.20</version>
                         <executions>
                             <execution>
                                 <id>api-test</id>
@@ -539,7 +574,6 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>2.20</version>
                         <executions>
                             <execution>
                                 <id>tinkerpop-structure-test</id>
@@ -560,7 +594,6 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>2.20</version>
                         <executions>
                             <execution>
                                 <id>tinkerpop-process-test</id>
@@ -575,7 +608,7 @@
             </build>
         </profile>
         <profile>
-            <id>release</id>
+            <id>apache-release</id>
             <build>
                 <plugins>
                     <plugin>
@@ -599,12 +632,15 @@
                                 <goals>
                                     <goal>jar</goal>
                                 </goals>
+                                <configuration>
+                                    <doclint>none</doclint>
+                                    <failOnError>false</failOnError>
+                                </configuration>
                             </execution>
                         </executions>
                         <configuration>
-                            <additionalJOptions>
-                                <additionalJOption>-Xdoclint:none</additionalJOption>
-                            </additionalJOptions>
+                            <doclint>none</doclint>
+                            <failOnError>false</failOnError>
                         </configuration>
                     </plugin>
                     <plugin>
@@ -627,17 +663,6 @@
                             </gpgArguments>
                         </configuration>
                     </plugin>
-                    <plugin>
-                        <groupId>org.sonatype.plugins</groupId>
-                        <artifactId>nexus-staging-maven-plugin</artifactId>
-                        <version>1.6.3</version>
-                        <extensions>true</extensions>
-                        <configuration>
-                            <serverId>ossrh</serverId>
-                            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-                            <autoReleaseAfterClose>false</autoReleaseAfterClose>
-                        </configuration>
-                    </plugin>
                 </plugins>
             </build>
         </profile>