diff --git a/client/pom.xml b/client/pom.xml
index f806b76d5b2..480b599ed17 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-client</artifactId>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 04c6537b69d..b9055ab21b3 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-distribution</artifactId>
diff --git a/example/hadoop/pom.xml b/example/hadoop/pom.xml
index 907beab8a65..44e75d58f81 100644
--- a/example/hadoop/pom.xml
+++ b/example/hadoop/pom.xml
@@ -24,17 +24,17 @@
     <parent>
         <artifactId>iotdb-examples</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-example</artifactId>
-    <version>0.9.1-SNAPSHOT</version>
+    <version>0.9.0-SNAPSHOT</version>
     <name>hadoop-example</name>
     <dependencies>
         <dependency>
             <groupId>org.apache.iotdb</groupId>
             <artifactId>hadoop-tsfile</artifactId>
-            <version>0.9.1-SNAPSHOT</version>
+            <version>0.9.0-SNAPSHOT</version>
         </dependency>
     </dependencies>
 </project>
diff --git a/example/jdbc/pom.xml b/example/jdbc/pom.xml
index 41c962e3fdd..25d5c11dd72 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>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jdbc-example</artifactId>
diff --git a/example/kafka/pom.xml b/example/kafka/pom.xml
index c777f3e8676..11d41bfbc94 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>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>kafka-example</artifactId>
diff --git a/example/pom.xml b/example/pom.xml
index f7822a72975..40866e584ed 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/example/rocketmq/pom.xml b/example/rocketmq/pom.xml
index 8508f8e6c94..da589642f63 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>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>rocketmq-example</artifactId>
diff --git a/example/session/pom.xml b/example/session/pom.xml
index 006f39203d7..9ad0199d65d 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>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client-example</artifactId>
diff --git a/example/tsfile/pom.xml b/example/tsfile/pom.xml
index 7b0c792c8de..ad34cf572c3 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>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile-example</artifactId>
diff --git a/grafana/pom.xml b/grafana/pom.xml
index 84f772d01e7..b2e1eda6f6b 100644
--- a/grafana/pom.xml
+++ b/grafana/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <!--parent>
@@ -165,7 +165,7 @@
                                     <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/hadoop/pom.xml b/hadoop/pom.xml
index 6ffcc2b79d3..3fcbdfc8c03 100644
--- a/hadoop/pom.xml
+++ b/hadoop/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-tsfile</artifactId>
@@ -40,7 +40,7 @@
         <dependency>
             <groupId>org.apache.iotdb</groupId>
             <artifactId>tsfile</artifactId>
-            <version>0.9.1-SNAPSHOT</version>
+            <version>0.9.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>org.apache.hadoop</groupId>
diff --git a/hive-connector/pom.xml b/hive-connector/pom.xml
index 9536e162971..3cc67579de2 100644
--- a/hive-connector/pom.xml
+++ b/hive-connector/pom.xml
@@ -24,11 +24,11 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hive-connector</artifactId>
-    <version>0.9.1-SNAPSHOT</version>
+    <version>0.9.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>org.apache.iotdb</groupId>
             <artifactId>hadoop-tsfile</artifactId>
-            <version>0.9.1-SNAPSHOT</version>
+            <version>0.9.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>org.apache.hive</groupId>
diff --git a/jdbc/pom.xml b/jdbc/pom.xml
index bf7aa483d35..8f83a10517c 100644
--- a/jdbc/pom.xml
+++ b/jdbc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-jdbc</artifactId>
@@ -126,7 +126,7 @@
                                                 </goals>
                                             </pluginExecutionFilter>
                                             <action>
-                                                <ignore />
+                                                <ignore/>
                                             </action>
                                         </pluginExecution>
                                     </pluginExecutions>
diff --git a/pom.xml b/pom.xml
index 84fba25af9b..5b8804e48ec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.iotdb</groupId>
     <artifactId>iotdb-parent</artifactId>
-    <version>0.9.1-SNAPSHOT</version>
+    <version>0.9.0-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Apache IoTDB (incubating) Project Parent POM</name>
     <description>This is the top level project that builds, packages the tsfile, iotdb engine, jdbc, and integration libs.</description>
@@ -533,7 +533,7 @@
                         <id>enforce-version-convergence</id>
                         <configuration>
                             <rules>
-                                <dependencyConvergence />
+                                <dependencyConvergence/>
                             </rules>
                         </configuration>
                         <goals>
@@ -579,7 +579,7 @@
                                 </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>
@@ -727,7 +727,7 @@
                     <instrumentation>
                         <ignoreTrivial>true</ignoreTrivial>
                     </instrumentation>
-                    <check />
+                    <check/>
                 </configuration>
                 <executions>
                     <execution>
diff --git a/server/pom.xml b/server/pom.xml
index b3f806f4064..3dff2e70ff6 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-server</artifactId>
diff --git a/service-rpc/pom.xml b/service-rpc/pom.xml
index c1df1591aca..f61aa86430f 100644
--- a/service-rpc/pom.xml
+++ b/service-rpc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>service-rpc</artifactId>
@@ -100,7 +100,7 @@
                                                 </goals>
                                             </pluginExecutionFilter>
                                             <action>
-                                                <ignore />
+                                                <ignore/>
                                             </action>
                                         </pluginExecution>
                                         <pluginExecution>
diff --git a/session/pom.xml b/session/pom.xml
index 9fd2090c215..28def958558 100644
--- a/session/pom.xml
+++ b/session/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>iotdb-session</artifactId>
diff --git a/spark-iotdb-connector/pom.xml b/spark-iotdb-connector/pom.xml
index 1797ede8254..3dbb0f3ef06 100644
--- a/spark-iotdb-connector/pom.xml
+++ b/spark-iotdb-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-iotdb-connector</artifactId>
diff --git a/spark-tsfile/pom.xml b/spark-tsfile/pom.xml
index e91cb960a75..d07ee8fe406 100644
--- a/spark-tsfile/pom.xml
+++ b/spark-tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-tsfile</artifactId>
@@ -39,7 +39,7 @@
         <dependency>
             <groupId>org.apache.iotdb</groupId>
             <artifactId>hadoop-tsfile</artifactId>
-            <version>0.9.1-SNAPSHOT</version>
+            <version>0.9.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>org.apache.spark</groupId>
diff --git a/tsfile/pom.xml b/tsfile/pom.xml
index e22a1c615bb..cab5fb5827c 100644
--- a/tsfile/pom.xml
+++ b/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.9.1-SNAPSHOT</version>
+        <version>0.9.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile</artifactId>