diff --git a/antlr/pom.xml b/antlr/pom.xml
index 08ebb67..e29d0f3 100644
--- a/antlr/pom.xml
+++ b/antlr/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-antlr</artifactId>
diff --git a/cli/pom.xml b/cli/pom.xml
index 09860fe..9587ce2 100644
--- a/cli/pom.xml
+++ b/cli/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-cli</artifactId>
diff --git a/client-cpp/pom.xml b/client-cpp/pom.xml
index 124dc27..77081f4 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp</artifactId>
diff --git a/client-py/pom.xml b/client-py/pom.xml
index bcff89f..805adbb 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-python-api</artifactId>
diff --git a/cluster/pom.xml b/cluster/pom.xml
index afd0a8c..6bed14c 100644
--- a/cluster/pom.xml
+++ b/cluster/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-cluster</artifactId>
diff --git a/code-coverage/pom.xml b/code-coverage/pom.xml
index 17941e6..9596244 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-code-coverage</artifactId>
diff --git a/compile-tools/pom.xml b/compile-tools/pom.xml
index 55a7e25..3ad8ed9 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 eb0ea5d..f8b4eee 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 bb16e94..c852ece 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>cross-tests</artifactId>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 67bb646..b63995e 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 7511f52..097128f 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>client-cpp-example</artifactId>
diff --git a/example/flink/pom.xml b/example/flink/pom.xml
index d98768e..a7cf2a0 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-example</artifactId>
diff --git a/example/hadoop/pom.xml b/example/hadoop/pom.xml
index 65219e5..b03648f 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-example</artifactId>
diff --git a/example/jdbc/pom.xml b/example/jdbc/pom.xml
index e9030c6..7f87710 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>jdbc-example</artifactId>
diff --git a/example/kafka/pom.xml b/example/kafka/pom.xml
index 5d2b103..e0fac33 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>kafka-example</artifactId>
diff --git a/example/mqtt/pom.xml b/example/mqtt/pom.xml
index 7a5b337..3747efe 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>mqtt-example</artifactId>
diff --git a/example/pom.xml b/example/pom.xml
index f25e282..5e4f837 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <packaging>pom</packaging>
diff --git a/example/pulsar/pom.xml b/example/pulsar/pom.xml
index 4de6608..22a2818 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/rocketmq/pom.xml b/example/rocketmq/pom.xml
index 07eebc8..76aaf39 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>rocketmq-example</artifactId>
diff --git a/example/session/pom.xml b/example/session/pom.xml
index 239ee77..ee7bc99 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>client-example</artifactId>
diff --git a/example/spark/pom.xml b/example/spark/pom.xml
index 842e470..eb47bf5 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/example/tsfile/pom.xml b/example/tsfile/pom.xml
index c9cccea..cc62adc 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile-example</artifactId>
diff --git a/example/udf/pom.xml b/example/udf/pom.xml
index 6b627ae..076d48f 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 c1c12de..92f4e72 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 4c1a4d1..718887c 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>flink-tsfile-connector</artifactId>
diff --git a/grafana/pom.xml b/grafana/pom.xml
index a4c09b1..e5961da 100644
--- a/grafana/pom.xml
+++ b/grafana/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <!--parent>
diff --git a/hadoop/pom.xml b/hadoop/pom.xml
index ba93d86..9ede4bb 100644
--- a/hadoop/pom.xml
+++ b/hadoop/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hadoop-tsfile</artifactId>
diff --git a/hive-connector/pom.xml b/hive-connector/pom.xml
index fe07f58..7528f81 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>hive-connector</artifactId>
diff --git a/jdbc/pom.xml b/jdbc/pom.xml
index a9bf040..9c4824b 100644
--- a/jdbc/pom.xml
+++ b/jdbc/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-jdbc</artifactId>
diff --git a/pom.xml b/pom.xml
index 6ca34dd..fc19a31 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.iotdb</groupId>
     <artifactId>iotdb-parent</artifactId>
-    <version>0.12.6-SNAPSHOT</version>
+    <version>0.12.6</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>v0.12.6</tag>
     </scm>
     <!-- Only configure the site distribution as the rest is handled by the apache parent -->
     <distributionManagement>
diff --git a/rewriteFileTool/pom.xml b/rewriteFileTool/pom.xml
index 4a9e65f..adc86b0 100644
--- a/rewriteFileTool/pom.xml
+++ b/rewriteFileTool/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rewriteFileTool</artifactId>
diff --git a/server/pom.xml b/server/pom.xml
index 5903ab6..2602a62 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-server</artifactId>
diff --git a/service-rpc/pom.xml b/service-rpc/pom.xml
index 17eb589..12edd46 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>service-rpc</artifactId>
diff --git a/session/pom.xml b/session/pom.xml
index f82f9f1..bf5073d 100644
--- a/session/pom.xml
+++ b/session/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/site/pom.xml b/site/pom.xml
index 40dbe58..336994b 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</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 5e69ca6..ea49ba3 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-iotdb-connector</artifactId>
diff --git a/spark-tsfile/pom.xml b/spark-tsfile/pom.xml
index 9e94311..c8d0574 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>spark-tsfile</artifactId>
diff --git a/thrift-cluster/pom.xml b/thrift-cluster/pom.xml
index d32c598..b2e7e92 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-cluster</artifactId>
diff --git a/thrift-sync/pom.xml b/thrift-sync/pom.xml
index ee1e9e4..7de0e19 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-sync</artifactId>
diff --git a/thrift/pom.xml b/thrift/pom.xml
index 6feeafb..dcf70a5 100644
--- a/thrift/pom.xml
+++ b/thrift/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift</artifactId>
diff --git a/tsfile/pom.xml b/tsfile/pom.xml
index e318789..f5255cf 100644
--- a/tsfile/pom.xml
+++ b/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile</artifactId>
diff --git a/zeppelin-interpreter/pom.xml b/zeppelin-interpreter/pom.xml
index 808c688..eec19cc 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>0.12.6-SNAPSHOT</version>
+        <version>0.12.6</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>zeppelin-iotdb</artifactId>