diff --git a/code-coverage/pom.xml b/code-coverage/pom.xml
index 54a3481e81a6..d448e37dae7f 100644
--- a/code-coverage/pom.xml
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@@ -24,7 +24,7 @@
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     <artifactId>iotdb-code-coverage</artifactId>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 0d48a5c111f8..52d3595ad195 100644
--- a/distribution/pom.xml
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diff --git a/example/client-cpp-example/pom.xml b/example/client-cpp-example/pom.xml
index 4c8b744e11c2..f4a6db03192d 100644
--- a/example/client-cpp-example/pom.xml
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diff --git a/example/flink/pom.xml b/example/flink/pom.xml
index 12f61ae884fd..9ad94d5b0609 100644
--- a/example/flink/pom.xml
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diff --git a/example/hadoop/pom.xml b/example/hadoop/pom.xml
index 380a0c0dc28f..e521680bf328 100644
--- a/example/hadoop/pom.xml
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diff --git a/example/jdbc/pom.xml b/example/jdbc/pom.xml
index 7218083d23a4..20342e0832a7 100644
--- a/example/jdbc/pom.xml
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diff --git a/example/kafka/pom.xml b/example/kafka/pom.xml
index 6becfe9c529a..d86f5cab68bd 100644
--- a/example/kafka/pom.xml
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index 22d44ab2b62a..ef233ea32ccd 100644
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diff --git a/example/mqtt/pom.xml b/example/mqtt/pom.xml
index dca2d95567bd..dccbf1da49dd 100644
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diff --git a/example/pom.xml b/example/pom.xml
index 32f0e506aa50..559fe382a413 100644
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diff --git a/example/pulsar/pom.xml b/example/pulsar/pom.xml
index 36bb63e36c95..6d48a6dc42fb 100644
--- a/example/pulsar/pom.xml
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diff --git a/example/rabbitmq/pom.xml b/example/rabbitmq/pom.xml
index b999442f1937..4ee64ed2f944 100644
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diff --git a/example/rest-java-example/pom.xml b/example/rest-java-example/pom.xml
index d7568b6774bc..cfdd6bde0156 100644
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diff --git a/example/rocketmq/pom.xml b/example/rocketmq/pom.xml
index 0ffb5c712492..dd826f7d00ab 100644
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index 5c8280d92add..ec6ba0699f3c 100644
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diff --git a/example/trigger/pom.xml b/example/trigger/pom.xml
index 7035d714817d..1af332be38a4 100644
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diff --git a/example/tsfile/pom.xml b/example/tsfile/pom.xml
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diff --git a/example/udf/pom.xml b/example/udf/pom.xml
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diff --git a/integration-test/pom.xml b/integration-test/pom.xml
index 3c2f16548fdb..5dd6904f10c3 100644
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index e5bcf3778e3a..aef8d4edf842 100644
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diff --git a/iotdb-api/pipe-api/pom.xml b/iotdb-api/pipe-api/pom.xml
index 815e6e60f137..7879197f9567 100644
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index ad08d4f348fe..07c1822e4a81 100644
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index 2f28afc92335..5a161087424d 100644
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diff --git a/iotdb-client/cli/pom.xml b/iotdb-client/cli/pom.xml
index b50bc475323f..f2be775eb06a 100644
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diff --git a/iotdb-client/client-cpp/pom.xml b/iotdb-client/client-cpp/pom.xml
index fe82adcd7f21..0ac47e05080e 100644
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diff --git a/iotdb-client/client-py/pom.xml b/iotdb-client/client-py/pom.xml
index 0bbc6ff85db0..79eabc18f4b2 100644
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diff --git a/iotdb-client/compile-tools/pom.xml b/iotdb-client/compile-tools/pom.xml
index 6116cb809f2a..62a18d614d92 100644
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diff --git a/iotdb-client/compile-tools/thrift/pom.xml b/iotdb-client/compile-tools/thrift/pom.xml
index 316a3e71fb78..62c80290dda0 100644
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diff --git a/iotdb-client/isession/pom.xml b/iotdb-client/isession/pom.xml
index 36c15184815e..9a2044ab599e 100644
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diff --git a/iotdb-client/jdbc/pom.xml b/iotdb-client/jdbc/pom.xml
index 72af7354cc05..c26a071e4f80 100644
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diff --git a/iotdb-client/service-rpc/pom.xml b/iotdb-client/service-rpc/pom.xml
index 602466798ce1..a044192b9576 100644
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diff --git a/iotdb-client/session/pom.xml b/iotdb-client/session/pom.xml
index 9d1f8736a8ef..4700dd7d5b86 100644
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diff --git a/iotdb-connector/flink-iotdb-connector/pom.xml b/iotdb-connector/flink-iotdb-connector/pom.xml
index b24ac8832888..f299f3aceb42 100644
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diff --git a/iotdb-connector/flink-tsfile-connector/pom.xml b/iotdb-connector/flink-tsfile-connector/pom.xml
index 42a32835cf7c..4206778f42d6 100644
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diff --git a/iotdb-connector/grafana-connector/pom.xml b/iotdb-connector/grafana-connector/pom.xml
index 181f58a5f572..c35fada6bee8 100644
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diff --git a/iotdb-connector/grafana-plugin/pom.xml b/iotdb-connector/grafana-plugin/pom.xml
index 9994236d082f..4cc9a8a2878c 100644
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diff --git a/iotdb-connector/hadoop/pom.xml b/iotdb-connector/hadoop/pom.xml
index 55b1a897e2ee..c94f07011dfa 100644
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diff --git a/iotdb-connector/hive-connector/pom.xml b/iotdb-connector/hive-connector/pom.xml
index e73da634472e..4795f7a9a783 100644
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diff --git a/iotdb-connector/spark-iotdb-connector/pom.xml b/iotdb-connector/spark-iotdb-connector/pom.xml
index 6c582db84902..6516a4498e34 100644
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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 78d875be9290..cfe75ee6fb81 100644
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         <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 3489dbe43377..e360524bc334 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 1256028943fe..bef3b89a04ca 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 0a3c7cf632ec..69bff90c2165 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>zeppelin-iotdb</artifactId>
diff --git a/iotdb-core/antlr/pom.xml b/iotdb-core/antlr/pom.xml
index 192112eae593..adeecac93508 100644
--- a/iotdb-core/antlr/pom.xml
+++ b/iotdb-core/antlr/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-antlr</artifactId>
diff --git a/iotdb-core/confignode/pom.xml b/iotdb-core/confignode/pom.xml
index 2fe6ee53303e..1fd6ebe605c0 100644
--- a/iotdb-core/confignode/pom.xml
+++ b/iotdb-core/confignode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-confignode</artifactId>
diff --git a/iotdb-core/consensus/pom.xml b/iotdb-core/consensus/pom.xml
index 58d252f5a7b6..eef96eef8261 100644
--- a/iotdb-core/consensus/pom.xml
+++ b/iotdb-core/consensus/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/iotdb-core/datanode/pom.xml b/iotdb-core/datanode/pom.xml
index 7aa1da5247f8..2920d2be41b9 100644
--- a/iotdb-core/datanode/pom.xml
+++ b/iotdb-core/datanode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-server</artifactId>
diff --git a/iotdb-core/metrics/dropwizard-metrics/pom.xml b/iotdb-core/metrics/dropwizard-metrics/pom.xml
index d5722dcb6c77..1c1ab4b6c457 100644
--- a/iotdb-core/metrics/dropwizard-metrics/pom.xml
+++ b/iotdb-core/metrics/dropwizard-metrics/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-metrics</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dropwizard-metrics</artifactId>
diff --git a/iotdb-core/metrics/interface/pom.xml b/iotdb-core/metrics/interface/pom.xml
index 6996a4d8ce45..3499289f4768 100644
--- a/iotdb-core/metrics/interface/pom.xml
+++ b/iotdb-core/metrics/interface/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-metrics</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>metrics-interface</artifactId>
diff --git a/iotdb-core/metrics/micrometer-metrics/pom.xml b/iotdb-core/metrics/micrometer-metrics/pom.xml
index e483c21d67cf..7c2899bb44cf 100644
--- a/iotdb-core/metrics/micrometer-metrics/pom.xml
+++ b/iotdb-core/metrics/micrometer-metrics/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-metrics</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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>1.2.0-SNAPSHOT</version>
+            <version>1.2.1</version>
         </dependency>
         <dependency>
             <groupId>io.micrometer</groupId>
diff --git a/iotdb-core/metrics/pom.xml b/iotdb-core/metrics/pom.xml
index 181a09c306af..8e6e0a2ef450 100644
--- a/iotdb-core/metrics/pom.xml
+++ b/iotdb-core/metrics/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-metrics</artifactId>
diff --git a/iotdb-core/mlnode/pom.xml b/iotdb-core/mlnode/pom.xml
index e01c12866160..6d311f368690 100644
--- a/iotdb-core/mlnode/pom.xml
+++ b/iotdb-core/mlnode/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-mlnode</artifactId>
diff --git a/iotdb-core/node-commons/pom.xml b/iotdb-core/node-commons/pom.xml
index 2a751880739d..60ae1ff28e1e 100644
--- a/iotdb-core/node-commons/pom.xml
+++ b/iotdb-core/node-commons/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>node-commons</artifactId>
diff --git a/iotdb-core/tsfile/pom.xml b/iotdb-core/tsfile/pom.xml
index 637a9b6488b8..90bb21c25211 100644
--- a/iotdb-core/tsfile/pom.xml
+++ b/iotdb-core/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.iotdb</groupId>
         <artifactId>iotdb-parent</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>tsfile</artifactId>
diff --git a/iotdb-protocol/openapi/pom.xml b/iotdb-protocol/openapi/pom.xml
index 51432c7dc9f7..4c3f7010905d 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 043f8feaa9da..a1b37b1de4e4 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 12235813038a..4d6ba4374dd3 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift-confignode</artifactId>
diff --git a/iotdb-protocol/thrift-iot-consensus/pom.xml b/iotdb-protocol/thrift-iot-consensus/pom.xml
index ba8d846c4a2f..f857bf5c8846 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 34965cc49bb3..a900c189b483 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</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 4d064168b80c..43d40174ed82 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>iotdb-thrift</artifactId>
diff --git a/library-udf/pom.xml b/library-udf/pom.xml
index 237358751e6c..157ee68fd29b 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>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>library-udf</artifactId>
diff --git a/pom.xml b/pom.xml
index 32ad62197e52..660dcaea03bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.iotdb</groupId>
     <artifactId>iotdb-parent</artifactId>
-    <version>1.2.0-SNAPSHOT</version>
+    <version>1.2.1</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>v1.2.1</tag>
     </scm>
     <!-- Only configure the site distribution as the rest is handled by the apache parent -->
     <distributionManagement>
diff --git a/site/pom.xml b/site/pom.xml
index 33111f79508a..287d57e42aa1 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>iotdb-parent</artifactId>
         <groupId>org.apache.iotdb</groupId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>