diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1ac375c1d9e..7fc334f8566 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,8 +40,8 @@ endif()
 message (STATUS "CMAKE_PREFIX_PATH: ${CMAKE_PREFIX_PATH}")
 message (STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
 set(OPENMLDB_VERSION_MAJOR 0)
-set(OPENMLDB_VERSION_MINOR 8)
-set(OPENMLDB_VERSION_BUG 6)
+set(OPENMLDB_VERSION_MINOR 9)
+set(OPENMLDB_VERSION_BUG 1)
 
 function(get_commitid CODE_DIR COMMIT_ID)
     find_package(Git REQUIRED)
diff --git a/java/hybridse-native/pom.xml b/java/hybridse-native/pom.xml
index 632f3fe04a4..ba85e0169a0 100644
--- a/java/hybridse-native/pom.xml
+++ b/java/hybridse-native/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-	<version>0.8.6-SNAPSHOT</version>
+	<version>0.9.1-SNAPSHOT</version>
 	<relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java/hybridse-proto/pom.xml b/java/hybridse-proto/pom.xml
index e179740a4ec..4bd333cb322 100644
--- a/java/hybridse-proto/pom.xml
+++ b/java/hybridse-proto/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java/hybridse-sdk/pom.xml b/java/hybridse-sdk/pom.xml
index 34d9e34e37e..ed8911fa572 100644
--- a/java/hybridse-sdk/pom.xml
+++ b/java/hybridse-sdk/pom.xml
@@ -6,7 +6,7 @@
     <parent>
       <artifactId>openmldb-parent</artifactId>
       <groupId>com.4paradigm.openmldb</groupId>
-      <version>0.8.6-SNAPSHOT</version>
+      <version>0.9.1-SNAPSHOT</version>
       <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java/openmldb-batch/pom.xml b/java/openmldb-batch/pom.xml
index 5fcbca9a8f1..8c0371e227a 100644
--- a/java/openmldb-batch/pom.xml
+++ b/java/openmldb-batch/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openmldb-batch</artifactId>
diff --git a/java/openmldb-batchjob/pom.xml b/java/openmldb-batchjob/pom.xml
index 101758c60dc..e449320d012 100644
--- a/java/openmldb-batchjob/pom.xml
+++ b/java/openmldb-batchjob/pom.xml
@@ -7,7 +7,7 @@
   <parent>
       <artifactId>openmldb-parent</artifactId>
       <groupId>com.4paradigm.openmldb</groupId>
-      <version>0.8.6-SNAPSHOT</version>
+      <version>0.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>openmldb-batchjob</artifactId>
diff --git a/java/openmldb-common/pom.xml b/java/openmldb-common/pom.xml
index afa86a5a0dc..6be5746496c 100644
--- a/java/openmldb-common/pom.xml
+++ b/java/openmldb-common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>openmldb-common</artifactId>
diff --git a/java/openmldb-jdbc/pom.xml b/java/openmldb-jdbc/pom.xml
index dca8db69e79..f51395b9ac0 100644
--- a/java/openmldb-jdbc/pom.xml
+++ b/java/openmldb-jdbc/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java/openmldb-native/pom.xml b/java/openmldb-native/pom.xml
index 214a918f7b6..ed3c45fae8b 100644
--- a/java/openmldb-native/pom.xml
+++ b/java/openmldb-native/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java/openmldb-spark-connector/pom.xml b/java/openmldb-spark-connector/pom.xml
index 574e8ddbf84..529618163e0 100644
--- a/java/openmldb-spark-connector/pom.xml
+++ b/java/openmldb-spark-connector/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openmldb-spark-connector</artifactId>
diff --git a/java/openmldb-synctool/pom.xml b/java/openmldb-synctool/pom.xml
index d752ce6d41b..bbdb1aa1fa8 100644
--- a/java/openmldb-synctool/pom.xml
+++ b/java/openmldb-synctool/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
     <artifactId>openmldb-synctool</artifactId>
     <name>openmldb-synctool</name>
diff --git a/java/openmldb-taskmanager/pom.xml b/java/openmldb-taskmanager/pom.xml
index 1b0fe69928e..6fee727ff3e 100644
--- a/java/openmldb-taskmanager/pom.xml
+++ b/java/openmldb-taskmanager/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>openmldb-parent</artifactId>
         <groupId>com.4paradigm.openmldb</groupId>
-        <version>0.8.6-SNAPSHOT</version>
+        <version>0.9.1-SNAPSHOT</version>
     </parent>
     <artifactId>openmldb-taskmanager</artifactId>
     <name>openmldb-taskmanager</name>
diff --git a/java/pom.xml b/java/pom.xml
index 7435a8cdfee..999ae2b8bae 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -7,7 +7,7 @@
     <artifactId>openmldb-parent</artifactId>
     <packaging>pom</packaging>
     <name>openmldb</name>
-    <version>0.8.6-SNAPSHOT</version>
+    <version>0.9.1-SNAPSHOT</version>
     <modules>
         <module>hybridse-sdk</module>
         <module>hybridse-native</module>
@@ -65,7 +65,7 @@
         <!-- the version for hybridse-native & openmldb-native
              override this to publish a variant release e.g. macOS variant
              checkout java/prepare_release.sh how to prepare a variant release -->
-        <variant.native.version>0.8.6-SNAPSHOT</variant.native.version>
+        <variant.native.version>0.9.1-SNAPSHOT</variant.native.version>
 
         <plugin.violationSeverity>error</plugin.violationSeverity>
         <spotless-maven-plugin.version>2.9.0</spotless-maven-plugin.version>
diff --git a/python/openmldb_sdk/setup.py b/python/openmldb_sdk/setup.py
index fa92ff71911..c682cc0c49f 100644
--- a/python/openmldb_sdk/setup.py
+++ b/python/openmldb_sdk/setup.py
@@ -18,7 +18,7 @@
 
 setup(
     name='openmldb',
-    version='0.8.6a0',
+    version='0.9.1a0',
     author='OpenMLDB Team',
     author_email=' ',
     url='https://github.com/4paradigm/OpenMLDB',
diff --git a/python/openmldb_tool/setup.py b/python/openmldb_tool/setup.py
index e36856f8d37..d43a21c1c70 100644
--- a/python/openmldb_tool/setup.py
+++ b/python/openmldb_tool/setup.py
@@ -18,7 +18,7 @@
 
 setup(
     name="openmldb-tool",
-    version='0.8.6a0',
+    version='0.9.1a0',
     author="OpenMLDB Team",
     author_email=" ",
     url="https://github.com/4paradigm/OpenMLDB",