[maven-release-plugin] prepare release v0.12.4
diff --git a/antlr/pom.xml b/antlr/pom.xml
index c4b8dbb..a77730a 100644
--- a/antlr/pom.xml
+++ b/antlr/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-antlr</artifactId>
diff --git a/cli/pom.xml b/cli/pom.xml
index 3557b4e..3612fd6 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-cli</artifactId>
diff --git a/client-cpp/pom.xml b/client-cpp/pom.xml
index a44b847..bb942f9 100644
--- a/client-cpp/pom.xml
+++ b/client-cpp/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp</artifactId>
diff --git a/client-py/pom.xml b/client-py/pom.xml
index 0558022..a52e0a5 100644
--- a/client-py/pom.xml
+++ b/client-py/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-python-api</artifactId>
diff --git a/cluster/pom.xml b/cluster/pom.xml
index f0a54ad..b270fc1 100644
--- a/cluster/pom.xml
+++ b/cluster/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-cluster</artifactId>
diff --git a/code-coverage/pom.xml b/code-coverage/pom.xml
index cd167b3..9f8a2de 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-code-coverage</artifactId>
diff --git a/compile-tools/pom.xml b/compile-tools/pom.xml
index c046288..bbe1b84 100644
--- a/compile-tools/pom.xml
+++ b/compile-tools/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-tools</artifactId>
diff --git a/compile-tools/thrift/pom.xml b/compile-tools/thrift/pom.xml
index 5e0a672..96399d2 100644
--- a/compile-tools/thrift/pom.xml
+++ b/compile-tools/thrift/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>client-cpp-tools</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-tools-thrift</artifactId>
diff --git a/cross-tests/pom.xml b/cross-tests/pom.xml
index faf6b72..40227fb 100644
--- a/cross-tests/pom.xml
+++ b/cross-tests/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cross-tests</artifactId>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 0ff89bc..b505222 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-distribution</artifactId>
diff --git a/example/client-cpp-example/pom.xml b/example/client-cpp-example/pom.xml
index d7cd7ee..b427a30 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-example</artifactId>
diff --git a/example/flink/pom.xml b/example/flink/pom.xml
index f701545..5f6204a 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-example</artifactId>
diff --git a/example/hadoop/pom.xml b/example/hadoop/pom.xml
index 249e4b5..92b1468 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-example</artifactId>
diff --git a/example/jdbc/pom.xml b/example/jdbc/pom.xml
index 980ef0d..d2f379f 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jdbc-example</artifactId>
diff --git a/example/kafka/pom.xml b/example/kafka/pom.xml
index c62bdca..a537917 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>kafka-example</artifactId>
diff --git a/example/mqtt/pom.xml b/example/mqtt/pom.xml
index 544a1d3..00aef79 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>mqtt-example</artifactId>
diff --git a/example/pom.xml b/example/pom.xml
index 8dfb0bd..808cd4b 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/example/pulsar/pom.xml b/example/pulsar/pom.xml
index 901b8a6..3b8eee4 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/rocketmq/pom.xml b/example/rocketmq/pom.xml
index 14a230a..29c59c8 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>rocketmq-example</artifactId>
diff --git a/example/session/pom.xml b/example/session/pom.xml
index b5f9e29..139470c 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client-example</artifactId>
diff --git a/example/spark/pom.xml b/example/spark/pom.xml
index d9f37eb..dd8904b 100644
--- a/example/spark/pom.xml
+++ b/example/spark/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-examples</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/tsfile/pom.xml b/example/tsfile/pom.xml
index 03f8515..30d9183 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile-example</artifactId>
diff --git a/example/udf/pom.xml b/example/udf/pom.xml
index 62c85c7..e22b0c7 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>udf-example</artifactId>
diff --git a/flink-iotdb-connector/pom.xml b/flink-iotdb-connector/pom.xml
index c3ad8e7..0fbe023 100644
--- a/flink-iotdb-connector/pom.xml
+++ b/flink-iotdb-connector/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-iotdb-connector</artifactId>
diff --git a/flink-tsfile-connector/pom.xml b/flink-tsfile-connector/pom.xml
index 5dbdecd..80cc17d 100644
--- a/flink-tsfile-connector/pom.xml
+++ b/flink-tsfile-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-tsfile-connector</artifactId>
diff --git a/grafana/pom.xml b/grafana/pom.xml
index 0b39db1..e0a11b5 100644
--- a/grafana/pom.xml
+++ b/grafana/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <!--parent>
diff --git a/hadoop/pom.xml b/hadoop/pom.xml
index 800804a..5aa78e5 100644
--- a/hadoop/pom.xml
+++ b/hadoop/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-tsfile</artifactId>
diff --git a/hive-connector/pom.xml b/hive-connector/pom.xml
index aa9041a..91b8028 100644
--- a/hive-connector/pom.xml
+++ b/hive-connector/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hive-connector</artifactId>
diff --git a/jdbc/pom.xml b/jdbc/pom.xml
index 5cb73c0..dda1b87 100644
--- a/jdbc/pom.xml
+++ b/jdbc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-jdbc</artifactId>
diff --git a/pom.xml b/pom.xml
index 9957234..496da4d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.iotdb</groupId>
     <artifactId>iotdb-parent</artifactId>
-    <version>0.12.4-SNAPSHOT</version>
+    <version>0.12.4</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>v0.12.3</tag>
+        <tag>v0.12.4</tag>
     </scm>
     <!-- Only configure the site distribution as the rest is handled by the apache parent -->
     <distributionManagement>
diff --git a/server/pom.xml b/server/pom.xml
index 7c5b8f8..5c4f833 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-server</artifactId>
diff --git a/service-rpc/pom.xml b/service-rpc/pom.xml
index 79d2808..1d80246 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>service-rpc</artifactId>
diff --git a/session/pom.xml b/session/pom.xml
index b928214..e8ee817 100644
--- a/session/pom.xml
+++ b/session/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/site/pom.xml b/site/pom.xml
index e2dd4d3..3468217 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/spark-iotdb-connector/pom.xml b/spark-iotdb-connector/pom.xml
index c0697bf..030a0f2 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-iotdb-connector</artifactId>
diff --git a/spark-tsfile/pom.xml b/spark-tsfile/pom.xml
index 1fb4eeb..120353f 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>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-tsfile</artifactId>
diff --git a/thrift-cluster/pom.xml b/thrift-cluster/pom.xml
index 1135798..419b8fa 100644
--- a/thrift-cluster/pom.xml
+++ b/thrift-cluster/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-cluster</artifactId>
diff --git a/thrift-sync/pom.xml b/thrift-sync/pom.xml
index f075748..0c0825b 100644
--- a/thrift-sync/pom.xml
+++ b/thrift-sync/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-sync</artifactId>
diff --git a/thrift/pom.xml b/thrift/pom.xml
index e9275d8..348d0dd 100644
--- a/thrift/pom.xml
+++ b/thrift/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift</artifactId>
diff --git a/tsfile/pom.xml b/tsfile/pom.xml
index 5429e5a..f26c930 100644
--- a/tsfile/pom.xml
+++ b/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile</artifactId>
diff --git a/zeppelin-interpreter/pom.xml b/zeppelin-interpreter/pom.xml
index 3ec60ed..c87ec08 100644
--- a/zeppelin-interpreter/pom.xml
+++ b/zeppelin-interpreter/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.4-SNAPSHOT</version>
+        <version>0.12.4</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>zeppelin-iotdb</artifactId>