diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 2c518cd24..32511806e 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -19,6 +19,19 @@
 
 -->
 
+# Apache TsFile 1.1.1
+
+## Improvement/Bugfix
+* Fixed the issue that the time of the first data item written to TSFile by measurement cannot be a negative number (#297)
+* Add LongConsumer ioSizeRecorder in TsFileSequenceReader for IoTDB scan (#301)
+* Add readItimeseriesMetadata method (#312)
+* Tablet.serialize() may throw an exception due to null values in the Date column (#330)
+* Add FlushChunkMetadataListener (#328)
+* Add final for readData methods (#347)
+* Bump logback to 1.3.15 (#362)
+* Fix example compile issue (#400)
+* Fixed the empty string ser/de bug & null string[] array calculation bug (#449)
+
 # Apache TsFile 1.1.0
 
 ## New Feature
diff --git a/cpp/pom.xml b/cpp/pom.xml
index d4cc65a20..3473b73fc 100644
--- a/cpp/pom.xml
+++ b/cpp/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-parent</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>tsfile-cpp</artifactId>
     <packaging>pom</packaging>
diff --git a/java/common/pom.xml b/java/common/pom.xml
index e3ff5e4bd..e80f2f814 100644
--- a/java/common/pom.xml
+++ b/java/common/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-java</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>common</artifactId>
     <name>TsFile: Java: Common</name>
diff --git a/java/examples/pom.xml b/java/examples/pom.xml
index 15fd1fa48..729f56394 100644
--- a/java/examples/pom.xml
+++ b/java/examples/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-java</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>examples</artifactId>
     <name>TsFile: Java: Examples</name>
@@ -36,7 +36,7 @@
         <dependency>
             <groupId>org.apache.tsfile</groupId>
             <artifactId>tsfile</artifactId>
-            <version>1.1.1-8c45afe9-SNAPSHOT</version>
+            <version>1.1.2-SNAPSHOT</version>
         </dependency>
     </dependencies>
     <build>
diff --git a/java/pom.xml b/java/pom.xml
index d5cf61a82..7a9ae1b57 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -24,10 +24,10 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-parent</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>tsfile-java</artifactId>
-    <version>1.1.1-8c45afe9-SNAPSHOT</version>
+    <version>1.1.2-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>TsFile: Java</name>
     <modules>
diff --git a/java/tsfile/pom.xml b/java/tsfile/pom.xml
index edd164a8a..42ab37166 100644
--- a/java/tsfile/pom.xml
+++ b/java/tsfile/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-java</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>tsfile</artifactId>
     <name>TsFile: Java: TsFile</name>
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>org.apache.tsfile</groupId>
             <artifactId>common</artifactId>
-            <version>1.1.1-8c45afe9-SNAPSHOT</version>
+            <version>1.1.2-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>com.github.luben</groupId>
diff --git a/pom.xml b/pom.xml
index 687fce2f8..109244fed 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     </parent>
     <groupId>org.apache.tsfile</groupId>
     <artifactId>tsfile-parent</artifactId>
-    <version>1.1.1-8c45afe9-SNAPSHOT</version>
+    <version>1.1.2-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Apache TsFile Project Parent POM</name>
     <properties>
diff --git a/python/pom.xml b/python/pom.xml
index 50bda5f59..a87b4dfc2 100644
--- a/python/pom.xml
+++ b/python/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.tsfile</groupId>
         <artifactId>tsfile-parent</artifactId>
-        <version>1.1.1-8c45afe9-SNAPSHOT</version>
+        <version>1.1.2-SNAPSHOT</version>
     </parent>
     <artifactId>tsfile-python</artifactId>
     <packaging>pom</packaging>