diff --git a/antlr/pom.xml b/antlr/pom.xml
index f5333d787a33..57e540c0b8c1 100644
--- a/antlr/pom.xml
+++ b/antlr/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-antlr</artifactId>
diff --git a/code-coverage/pom.xml b/code-coverage/pom.xml
index f0d44282b485..a860420ec092 100644
--- a/code-coverage/pom.xml
+++ b/code-coverage/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-code-coverage</artifactId>
diff --git a/confignode/pom.xml b/confignode/pom.xml
index 5a425f033ab7..2fe10fb327fb 100644
--- a/confignode/pom.xml
+++ b/confignode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-confignode</artifactId>
diff --git a/consensus/pom.xml b/consensus/pom.xml
index 9e8277391f80..25450758e4bb 100644
--- a/consensus/pom.xml
+++ b/consensus/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index d1d3055f6eff..19909507bf7f 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -24,12 +24,12 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-distribution</artifactId>
     <name>IoTDB Distribution</name>
-    <modules />
+    <modules/>
     <build>
         <plugins>
             <plugin>
diff --git a/example/client-cpp-example/pom.xml b/example/client-cpp-example/pom.xml
index 49fab3e4dc52..3bf7337136b6 100644
--- a/example/client-cpp-example/pom.xml
+++ b/example/client-cpp-example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-example</artifactId>
@@ -84,7 +84,7 @@
             <properties>
                 <cmake.generator>Visual Studio 16 2019</cmake.generator>
                 <cmake.root.dir>${project.parent.basedir}/../compile-tools/thrift/target/cmake-${cmake-version}-win64-x64/</cmake.root.dir>
-                <boost.include.dir />
+                <boost.include.dir/>
             </properties>
         </profile>
         <profile>
diff --git a/example/flink/pom.xml b/example/flink/pom.xml
index cc65f40c378f..62a4c1b8b888 100644
--- a/example/flink/pom.xml
+++ b/example/flink/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-example</artifactId>
diff --git a/example/hadoop/pom.xml b/example/hadoop/pom.xml
index 42841c2284ac..2f6dbd4db4c4 100644
--- a/example/hadoop/pom.xml
+++ b/example/hadoop/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-example</artifactId>
diff --git a/example/jdbc/pom.xml b/example/jdbc/pom.xml
index 4beec27bfe45..59bd71c854e2 100644
--- a/example/jdbc/pom.xml
+++ b/example/jdbc/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jdbc-example</artifactId>
diff --git a/example/kafka/pom.xml b/example/kafka/pom.xml
index 25ff45c466cd..ee64e5632979 100644
--- a/example/kafka/pom.xml
+++ b/example/kafka/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>kafka-example</artifactId>
diff --git a/example/mqtt-customize/pom.xml b/example/mqtt-customize/pom.xml
index 2ab14c6c3d9d..f0cf3323761a 100644
--- a/example/mqtt-customize/pom.xml
+++ b/example/mqtt-customize/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>customize-mqtt-example</artifactId>
diff --git a/example/mqtt/pom.xml b/example/mqtt/pom.xml
index c4b4b1c1281c..92279136e44f 100644
--- a/example/mqtt/pom.xml
+++ b/example/mqtt/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>mqtt-example</artifactId>
diff --git a/example/pom.xml b/example/pom.xml
index da562367883d..0b864ed0c2af 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/example/pulsar/pom.xml b/example/pulsar/pom.xml
index 9690a5152fda..e94bf63433a2 100644
--- a/example/pulsar/pom.xml
+++ b/example/pulsar/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/rabbitmq/pom.xml b/example/rabbitmq/pom.xml
index 19f6671cc833..83c45bdd14b7 100644
--- a/example/rabbitmq/pom.xml
+++ b/example/rabbitmq/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>rabbitmq-example</artifactId>
diff --git a/example/rest-java-example/pom.xml b/example/rest-java-example/pom.xml
index 028bedb9ae4c..e42695577dc3 100644
--- a/example/rest-java-example/pom.xml
+++ b/example/rest-java-example/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rest-java-example</artifactId>
diff --git a/example/rocketmq/pom.xml b/example/rocketmq/pom.xml
index d5859f61c65f..cac45c11611c 100644
--- a/example/rocketmq/pom.xml
+++ b/example/rocketmq/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>rocketmq-example</artifactId>
diff --git a/example/session/pom.xml b/example/session/pom.xml
index 2b7907b6b5a9..cb8552def14f 100644
--- a/example/session/pom.xml
+++ b/example/session/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client-example</artifactId>
diff --git a/example/trigger/pom.xml b/example/trigger/pom.xml
index 04f2ecbca109..fdcd64883c4b 100644
--- a/example/trigger/pom.xml
+++ b/example/trigger/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>trigger-example</artifactId>
@@ -123,7 +123,7 @@
                                 <importOrder>
                                     <order>org.apache.iotdb,,javax,java,\#</order>
                                 </importOrder>
-                                <removeUnusedImports />
+                                <removeUnusedImports/>
                             </java>
                         </configuration>
                         <executions>
diff --git a/example/tsfile/pom.xml b/example/tsfile/pom.xml
index f7997f1a3b40..6deee91873c0 100644
--- a/example/tsfile/pom.xml
+++ b/example/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile-example</artifactId>
diff --git a/example/udf/pom.xml b/example/udf/pom.xml
index b724c9b83f7f..48a628162806 100644
--- a/example/udf/pom.xml
+++ b/example/udf/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>udf-example</artifactId>
@@ -117,7 +117,7 @@
                                 <importOrder>
                                     <order>org.apache.iotdb,,javax,java,\#</order>
                                 </importOrder>
-                                <removeUnusedImports />
+                                <removeUnusedImports/>
                             </java>
                         </configuration>
                         <executions>
diff --git a/iotdb-api/external-api/pom.xml b/iotdb-api/external-api/pom.xml
index a711e65ee3e6..fc08ce6acfce 100644
--- a/iotdb-api/external-api/pom.xml
+++ b/iotdb-api/external-api/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-api/pipe-api/pom.xml b/iotdb-api/pipe-api/pom.xml
index d609815ba34d..85483557f542 100644
--- a/iotdb-api/pipe-api/pom.xml
+++ b/iotdb-api/pipe-api/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-api/subscription-api/pom.xml b/iotdb-api/subscription-api/pom.xml
index 551272dc452f..439c99eae97c 100644
--- a/iotdb-api/subscription-api/pom.xml
+++ b/iotdb-api/subscription-api/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-api/trigger-api/pom.xml b/iotdb-api/trigger-api/pom.xml
index cbe3610409f5..14acda17ee3f 100644
--- a/iotdb-api/trigger-api/pom.xml
+++ b/iotdb-api/trigger-api/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-api/udf-api/pom.xml b/iotdb-api/udf-api/pom.xml
index 5f0671045fe6..e7d635e94de5 100644
--- a/iotdb-api/udf-api/pom.xml
+++ b/iotdb-api/udf-api/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-client/cli/pom.xml b/iotdb-client/cli/pom.xml
index 794a8b3e1525..d1c735ecc738 100644
--- a/iotdb-client/cli/pom.xml
+++ b/iotdb-client/cli/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-cli</artifactId>
diff --git a/iotdb-client/client-cpp/pom.xml b/iotdb-client/client-cpp/pom.xml
index 6c238d17df02..1916029ef9cb 100644
--- a/iotdb-client/client-cpp/pom.xml
+++ b/iotdb-client/client-cpp/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp</artifactId>
@@ -125,8 +125,8 @@
                 <thrift.exec.absolute.path>${project.parent.basedir}/iotdb-client/compile-tools/thrift/target/build/compiler/cpp/bin/${cmake.build.type}/thrift.exe</thrift.exec.absolute.path>
                 <iotdb.start.script>start-standalone.bat</iotdb.start.script>
                 <iotdb.stop.script>stop-standalone.bat</iotdb.stop.script>
-                <boost.include.dir />
-                <boost.library.dir />
+                <boost.include.dir/>
+                <boost.library.dir/>
             </properties>
         </profile>
         <profile>
diff --git a/iotdb-client/client-py/pom.xml b/iotdb-client/client-py/pom.xml
index 698ce20ac464..ee65df6419f7 100644
--- a/iotdb-client/client-py/pom.xml
+++ b/iotdb-client/client-py/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-python-api</artifactId>
diff --git a/iotdb-client/compile-tools/pom.xml b/iotdb-client/compile-tools/pom.xml
index 461ac580c4d0..ec73ca5e6924 100644
--- a/iotdb-client/compile-tools/pom.xml
+++ b/iotdb-client/compile-tools/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-tools</artifactId>
@@ -35,7 +35,7 @@
         <cmake-version>3.17.3</cmake-version>
         <openssl.include.dir>-Dtrue1=true1</openssl.include.dir>
         <bison.executable.dir>-Dtrue1=true1</bison.executable.dir>
-        <cmake.build.type />
+        <cmake.build.type/>
     </properties>
     <modules>
         <module>thrift</module>
@@ -138,8 +138,8 @@
                 <thrift.make.executable>make</thrift.make.executable>
                 <thrift.compiler.executable>thrift.exe</thrift.compiler.executable>
                 <gradlew.executable>gradlew.bat</gradlew.executable>
-                <boost.include.dir />
-                <boost.library.dir />
+                <boost.include.dir/>
+                <boost.library.dir/>
             </properties>
         </profile>
     </profiles>
diff --git a/iotdb-client/compile-tools/thrift/pom.xml b/iotdb-client/compile-tools/thrift/pom.xml
index b316afa1580d..eaeefbe24bba 100644
--- a/iotdb-client/compile-tools/thrift/pom.xml
+++ b/iotdb-client/compile-tools/thrift/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>client-cpp-tools</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-tools-thrift</artifactId>
diff --git a/iotdb-client/isession/pom.xml b/iotdb-client/isession/pom.xml
index b1df4e0da610..188aa680e116 100644
--- a/iotdb-client/isession/pom.xml
+++ b/iotdb-client/isession/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-client/jdbc/pom.xml b/iotdb-client/jdbc/pom.xml
index 3a1be943c7de..1ab850d8fcf1 100644
--- a/iotdb-client/jdbc/pom.xml
+++ b/iotdb-client/jdbc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-jdbc</artifactId>
@@ -210,7 +210,7 @@
                                                 </goals>
                                             </pluginExecutionFilter>
                                             <action>
-                                                <ignore />
+                                                <ignore/>
                                             </action>
                                         </pluginExecution>
                                     </pluginExecutions>
diff --git a/iotdb-client/service-rpc/pom.xml b/iotdb-client/service-rpc/pom.xml
index d805160e9958..0b6a7046b2b2 100644
--- a/iotdb-client/service-rpc/pom.xml
+++ b/iotdb-client/service-rpc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>service-rpc</artifactId>
diff --git a/iotdb-client/session/pom.xml b/iotdb-client/session/pom.xml
index f6be4099098a..05d589581bb7 100644
--- a/iotdb-client/session/pom.xml
+++ b/iotdb-client/session/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-connector/flink-iotdb-connector/pom.xml b/iotdb-connector/flink-iotdb-connector/pom.xml
index 75dc48602b22..5b5c3653ad39 100644
--- a/iotdb-connector/flink-iotdb-connector/pom.xml
+++ b/iotdb-connector/flink-iotdb-connector/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>flink-iotdb-connector</artifactId>
diff --git a/iotdb-connector/flink-tsfile-connector/pom.xml b/iotdb-connector/flink-tsfile-connector/pom.xml
index 4a81a100b917..969f7d3fd50f 100644
--- a/iotdb-connector/flink-tsfile-connector/pom.xml
+++ b/iotdb-connector/flink-tsfile-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>flink-tsfile-connector</artifactId>
diff --git a/iotdb-connector/grafana-connector/pom.xml b/iotdb-connector/grafana-connector/pom.xml
index adc5c755241f..15b912e0f0f0 100644
--- a/iotdb-connector/grafana-connector/pom.xml
+++ b/iotdb-connector/grafana-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <!--parent>
@@ -170,7 +170,7 @@
                                     <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                         <resource>META-INF/spring.schemas</resource>
                                     </transformer>
-                                    <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+                                    <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
                                     <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                         <mainClass>${start-class}</mainClass>
                                     </transformer>
diff --git a/iotdb-connector/grafana-plugin/pom.xml b/iotdb-connector/grafana-plugin/pom.xml
index e7f80bb7274b..06a919cbcf80 100644
--- a/iotdb-connector/grafana-plugin/pom.xml
+++ b/iotdb-connector/grafana-plugin/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-grafana-plugin</artifactId>
@@ -123,16 +123,16 @@
                                 <configuration>
                                     <tasks>
                                         <condition property="osFamily" value="windows">
-                                            <os family="windows" />
+                                            <os family="windows"/>
                                         </condition>
                                         <condition property="osFamily" value="unix">
-                                            <os family="unix" />
+                                            <os family="unix"/>
                                         </condition>
                                         <exec executable="C:\\Windows\\System32\\cmd.exe" osfamily="windows">
-                                            <arg line="/c backend-compile.bat" />
+                                            <arg line="/c backend-compile.bat"/>
                                         </exec>
                                         <exec executable="/bin/bash" osfamily="unix">
-                                            <arg line="-c ./backend-compile.sh" />
+                                            <arg line="-c ./backend-compile.sh"/>
                                         </exec>
                                     </tasks>
                                 </configuration>
diff --git a/iotdb-connector/hadoop/pom.xml b/iotdb-connector/hadoop/pom.xml
index f7f59d088e90..e0a44651a121 100644
--- a/iotdb-connector/hadoop/pom.xml
+++ b/iotdb-connector/hadoop/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-tsfile</artifactId>
diff --git a/iotdb-connector/hive-connector/pom.xml b/iotdb-connector/hive-connector/pom.xml
index ec3e116581b9..6625bf0d93bc 100644
--- a/iotdb-connector/hive-connector/pom.xml
+++ b/iotdb-connector/hive-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>hive-connector</artifactId>
diff --git a/iotdb-connector/spark-iotdb-connector/scala_2.11/pom.xml b/iotdb-connector/spark-iotdb-connector/scala_2.11/pom.xml
index c2ab697c8027..c6c984e30196 100644
--- a/iotdb-connector/spark-iotdb-connector/scala_2.11/pom.xml
+++ b/iotdb-connector/spark-iotdb-connector/scala_2.11/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../../pom.xml</relativePath>
     </parent>
     <artifactId>spark-iotdb-connector_2.11</artifactId>
diff --git a/iotdb-connector/spark-iotdb-connector/scala_2.12/pom.xml b/iotdb-connector/spark-iotdb-connector/scala_2.12/pom.xml
index 6013b647fd76..135e97ee6c01 100644
--- a/iotdb-connector/spark-iotdb-connector/scala_2.12/pom.xml
+++ b/iotdb-connector/spark-iotdb-connector/scala_2.12/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../../pom.xml</relativePath>
     </parent>
     <artifactId>spark-iotdb-connector_2.12</artifactId>
diff --git a/iotdb-connector/spark-tsfile/pom.xml b/iotdb-connector/spark-tsfile/pom.xml
index edd4b8b20bb3..df72d703cd85 100644
--- a/iotdb-connector/spark-tsfile/pom.xml
+++ b/iotdb-connector/spark-tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>spark-tsfile</artifactId>
diff --git a/iotdb-connector/zeppelin-interpreter/pom.xml b/iotdb-connector/zeppelin-interpreter/pom.xml
index 741db577fa36..7512cce62cfb 100644
--- a/iotdb-connector/zeppelin-interpreter/pom.xml
+++ b/iotdb-connector/zeppelin-interpreter/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>zeppelin-iotdb</artifactId>
diff --git a/iotdb-protocol/openapi/pom.xml b/iotdb-protocol/openapi/pom.xml
index f121a4fe0c75..7eefa11a8b1d 100644
--- a/iotdb-protocol/openapi/pom.xml
+++ b/iotdb-protocol/openapi/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-protocol/thrift-commons/pom.xml b/iotdb-protocol/thrift-commons/pom.xml
index bd7a1aa0e0a3..efe392ca88a6 100644
--- a/iotdb-protocol/thrift-commons/pom.xml
+++ b/iotdb-protocol/thrift-commons/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-commons</artifactId>
diff --git a/iotdb-protocol/thrift-confignode/pom.xml b/iotdb-protocol/thrift-confignode/pom.xml
index 7557f5cecde4..ecc31664cfb2 100644
--- a/iotdb-protocol/thrift-confignode/pom.xml
+++ b/iotdb-protocol/thrift-confignode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-confignode</artifactId>
diff --git a/iotdb-protocol/thrift-influxdb/pom.xml b/iotdb-protocol/thrift-influxdb/pom.xml
index 0afb746b9066..44ead7555548 100644
--- a/iotdb-protocol/thrift-influxdb/pom.xml
+++ b/iotdb-protocol/thrift-influxdb/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>influxdb-thrift</artifactId>
diff --git a/iotdb-protocol/thrift-iot-consensus/pom.xml b/iotdb-protocol/thrift-iot-consensus/pom.xml
index f00dfe026ef2..926a82e81e6c 100644
--- a/iotdb-protocol/thrift-iot-consensus/pom.xml
+++ b/iotdb-protocol/thrift-iot-consensus/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>thrift-iot-consensus</artifactId>
diff --git a/iotdb-protocol/thrift-mlnode/pom.xml b/iotdb-protocol/thrift-mlnode/pom.xml
index 0b02939150b4..cbb95d80e389 100644
--- a/iotdb-protocol/thrift-mlnode/pom.xml
+++ b/iotdb-protocol/thrift-mlnode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-mlnode</artifactId>
diff --git a/iotdb-protocol/thrift/pom.xml b/iotdb-protocol/thrift/pom.xml
index 1a1623dec441..79f787284467 100644
--- a/iotdb-protocol/thrift/pom.xml
+++ b/iotdb-protocol/thrift/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift</artifactId>
diff --git a/library-udf/pom.xml b/library-udf/pom.xml
index e390c822b65e..8201ebe5b770 100644
--- a/library-udf/pom.xml
+++ b/library-udf/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>library-udf</artifactId>
diff --git a/metrics/dropwizard-metrics/pom.xml b/metrics/dropwizard-metrics/pom.xml
index f087be4259b5..ade641b524dc 100644
--- a/metrics/dropwizard-metrics/pom.xml
+++ b/metrics/dropwizard-metrics/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-metrics</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dropwizard-metrics</artifactId>
diff --git a/metrics/interface/pom.xml b/metrics/interface/pom.xml
index eaff03039fb1..47a37908429c 100644
--- a/metrics/interface/pom.xml
+++ b/metrics/interface/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-metrics</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>metrics-interface</artifactId>
diff --git a/metrics/micrometer-metrics/pom.xml b/metrics/micrometer-metrics/pom.xml
index 7d8ac90df6f9..600944f09a77 100644
--- a/metrics/micrometer-metrics/pom.xml
+++ b/metrics/micrometer-metrics/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-metrics</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>micrometer-metrics</artifactId>
@@ -31,7 +31,7 @@
         <dependency>
             <groupId>org.apache.iotdb</groupId>
             <artifactId>metrics-interface</artifactId>
-            <version>1.2.1-SNAPSHOT</version>
+            <version>1.2.0</version>
         </dependency>
         <dependency>
             <groupId>io.micrometer</groupId>
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 42c0f36c6e63..020c9152d80c 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-metrics</artifactId>
diff --git a/mlnode/pom.xml b/mlnode/pom.xml
index 49bcd42fb69b..3a41cf0d2407 100644
--- a/mlnode/pom.xml
+++ b/mlnode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-mlnode</artifactId>
diff --git a/node-commons/pom.xml b/node-commons/pom.xml
index acce27e0c9fb..96187a668965 100644
--- a/node-commons/pom.xml
+++ b/node-commons/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>node-commons</artifactId>
diff --git a/pom.xml b/pom.xml
index a192948f96ed..3061f0d28186 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.iotdb</groupId>
     <artifactId>iotdb-parent</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
+    <version>1.2.0</version>
     <packaging>pom</packaging>
     <name>Apache IoTDB Project Parent POM</name>
     <description>This is the top level project that builds, packages the tsfile, iotdb engine, jdbc, and integration libs.</description>
@@ -42,7 +42,7 @@
         <connection>scm:git:ssh://git@github.com/apache/iotdb.git</connection>
         <developerConnection>scm:git:ssh://git@github.com/apache/iotdb.git</developerConnection>
         <url>ssh://git@github.com:apache/iotdb.git</url>
-        <tag>rel/0.10</tag>
+        <tag>v1.2.0</tag>
     </scm>
     <!-- Only configure the site distribution as the rest is handled by the apache parent -->
     <distributionManagement>
@@ -111,7 +111,7 @@
         <module>iotdb-client/compile-tools</module>
         <module>iotdb-client/client-cpp</module>
         <module>metrics</module>
-<!--        <module>integration-test</module>-->
+        <!--        <module>integration-test</module>-->
         <module>consensus</module>
         <module>library-udf</module>
         <module>iotdb-api/udf-api</module>
@@ -173,7 +173,7 @@
         <sonar.junit.reportPaths>target/surefire-reports,target/failsafe-reports</sonar.junit.reportPaths>
         <!-- By default, the argLine is empty-->
         <gson.version>2.8.9</gson.version>
-        <argLine />
+        <argLine/>
         <!-- whether enable compiling the cpp client-->
         <client-cpp>false</client-cpp>
         <!-- disable enforcer by default-->
@@ -801,7 +801,7 @@
                             <importOrder>
                                 <order>org.apache.iotdb,,javax,java,\#</order>
                             </importOrder>
-                            <removeUnusedImports />
+                            <removeUnusedImports/>
                         </java>
                         <lineEndings>UNIX</lineEndings>
                     </configuration>
@@ -879,7 +879,7 @@
                         <phase>validate</phase>
                         <configuration>
                             <rules>
-                                <dependencyConvergence />
+                                <dependencyConvergence/>
                             </rules>
                         </configuration>
                         <goals>
@@ -925,7 +925,7 @@
                                 </requireJavaVersion>
                                 <!-- Disabled for now as it breaks the ability to build single modules -->
                                 <!--reactorModuleConvergence/-->
-                                <banVulnerable implementation="org.sonatype.ossindex.maven.enforcer.BanVulnerableDependencies" />
+                                <banVulnerable implementation="org.sonatype.ossindex.maven.enforcer.BanVulnerableDependencies"/>
                             </rules>
                         </configuration>
                     </execution>
diff --git a/server/pom.xml b/server/pom.xml
index fde8a2702956..fbf608e9c259 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-server</artifactId>
diff --git a/site/pom.xml b/site/pom.xml
index 65b297c49097..304b97a0c87d 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -318,7 +318,7 @@
                                 <configuration>
                                     <tasks>
                                         <exec executable="/bin/bash">
-                                            <arg line="-c ./replace-picture-urls.sh" />
+                                            <arg line="-c ./replace-picture-urls.sh"/>
                                         </exec>
                                     </tasks>
                                 </configuration>
diff --git a/tsfile/pom.xml b/tsfile/pom.xml
index b430a237fe0d..6b3f28ceed65 100644
--- a/tsfile/pom.xml
+++ b/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.1-SNAPSHOT</version>
+        <version>1.2.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile</artifactId>