diff --git a/modules/siddhi-annotations/pom.xml b/modules/siddhi-annotations/pom.xml
index bb295b9208..e806f9618f 100644
--- a/modules/siddhi-annotations/pom.xml
+++ b/modules/siddhi-annotations/pom.xml
@@ -17,13 +17,12 @@
   ~ under the License.
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../..</relativePath>
     </parent>
 
diff --git a/modules/siddhi-core/pom.xml b/modules/siddhi-core/pom.xml
index 4614079d2a..bcdf86b800 100644
--- a/modules/siddhi-core/pom.xml
+++ b/modules/siddhi-core/pom.xml
@@ -16,13 +16,12 @@
   ~ specific language governing permissions and limitations
   ~ under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
 
     </parent>
diff --git a/modules/siddhi-extensions/event-table/pom.xml b/modules/siddhi-extensions/event-table/pom.xml
index 2be4137550..650acd30ba 100644
--- a/modules/siddhi-extensions/event-table/pom.xml
+++ b/modules/siddhi-extensions/event-table/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/input-mappers/text-input-mapper/pom.xml b/modules/siddhi-extensions/input-mappers/text-input-mapper/pom.xml
index 69491bdd2c..a79e0e798e 100644
--- a/modules/siddhi-extensions/input-mappers/text-input-mapper/pom.xml
+++ b/modules/siddhi-extensions/input-mappers/text-input-mapper/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/input-transports/kafka-input-transport/pom.xml b/modules/siddhi-extensions/input-transports/kafka-input-transport/pom.xml
index e408ecb1c8..9811294075 100644
--- a/modules/siddhi-extensions/input-transports/kafka-input-transport/pom.xml
+++ b/modules/siddhi-extensions/input-transports/kafka-input-transport/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -75,17 +74,17 @@
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-extension-kafka-output-transport</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-extension-text-input-mapper</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-extension-text-output-mapper</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
     </dependencies>
 
diff --git a/modules/siddhi-extensions/input-transports/tcp-input-transport/pom.xml b/modules/siddhi-extensions/input-transports/tcp-input-transport/pom.xml
index 75c226eea5..0ea019a8df 100644
--- a/modules/siddhi-extensions/input-transports/tcp-input-transport/pom.xml
+++ b/modules/siddhi-extensions/input-transports/tcp-input-transport/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -58,7 +57,7 @@
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-tcp-transport</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
 
         <!-- Testing purposes -->
diff --git a/modules/siddhi-extensions/output-mappers/text-output-mapper/pom.xml b/modules/siddhi-extensions/output-mappers/text-output-mapper/pom.xml
index 215df1a690..3b6ca033a4 100644
--- a/modules/siddhi-extensions/output-mappers/text-output-mapper/pom.xml
+++ b/modules/siddhi-extensions/output-mappers/text-output-mapper/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/output-transports/kafka-output-transport/pom.xml b/modules/siddhi-extensions/output-transports/kafka-output-transport/pom.xml
index 75e03b3512..d84eb4f274 100644
--- a/modules/siddhi-extensions/output-transports/kafka-output-transport/pom.xml
+++ b/modules/siddhi-extensions/output-transports/kafka-output-transport/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -62,7 +61,7 @@
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-extension-text-output-mapper</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
     </dependencies>
 
diff --git a/modules/siddhi-extensions/output-transports/tcp-output-transport/pom.xml b/modules/siddhi-extensions/output-transports/tcp-output-transport/pom.xml
index f31a2dc9fc..0b934b9d5d 100644
--- a/modules/siddhi-extensions/output-transports/tcp-output-transport/pom.xml
+++ b/modules/siddhi-extensions/output-transports/tcp-output-transport/pom.xml
@@ -18,12 +18,11 @@
   ~ under the License.
   -->
 
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -58,7 +57,7 @@
         <dependency>
             <groupId>org.wso2.siddhi</groupId>
             <artifactId>siddhi-tcp-transport</artifactId>
-            <version>4.0.0-SNAPSHOT</version>
+            <version>4.0.0-M1</version>
         </dependency>
     </dependencies>
 
diff --git a/modules/siddhi-extensions/pom.xml b/modules/siddhi-extensions/pom.xml
index 1615456ba5..87402bc1ad 100644
--- a/modules/siddhi-extensions/pom.xml
+++ b/modules/siddhi-extensions/pom.xml
@@ -17,12 +17,11 @@
   ~ specific language governing permissions and limitations
   ~ under the License.
   -->
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/transport/tcp-transport/pom.xml b/modules/siddhi-extensions/transport/tcp-transport/pom.xml
index ad39c70074..020c21eb68 100644
--- a/modules/siddhi-extensions/transport/tcp-transport/pom.xml
+++ b/modules/siddhi-extensions/transport/tcp-transport/pom.xml
@@ -16,12 +16,11 @@
   ~ specific language governing permissions and limitations
   ~ under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-query-api/pom.xml b/modules/siddhi-query-api/pom.xml
index d041ae4a92..e12bf70966 100644
--- a/modules/siddhi-query-api/pom.xml
+++ b/modules/siddhi-query-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
 
     </parent>
diff --git a/modules/siddhi-query-compiler/pom.xml b/modules/siddhi-query-compiler/pom.xml
index 79a54ead4e..bad10e5b5e 100644
--- a/modules/siddhi-query-compiler/pom.xml
+++ b/modules/siddhi-query-compiler/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-samples/performance-samples/pom.xml b/modules/siddhi-samples/performance-samples/pom.xml
index 5aafcf7029..98c012b80e 100644
--- a/modules/siddhi-samples/performance-samples/pom.xml
+++ b/modules/siddhi-samples/performance-samples/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-samples</artifactId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>performance-samples</artifactId>
diff --git a/modules/siddhi-samples/pom.xml b/modules/siddhi-samples/pom.xml
index 0a115f8461..60bfb47330 100644
--- a/modules/siddhi-samples/pom.xml
+++ b/modules/siddhi-samples/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
 
     </parent>
diff --git a/modules/siddhi-samples/quick-start-samples/pom.xml b/modules/siddhi-samples/quick-start-samples/pom.xml
index cbc9ef0802..51466aa6c7 100644
--- a/modules/siddhi-samples/quick-start-samples/pom.xml
+++ b/modules/siddhi-samples/quick-start-samples/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>siddhi-samples</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/modules/siddhi-service/pom.xml b/modules/siddhi-service/pom.xml
index 2b29ef39ae..f0e4d15304 100644
--- a/modules/siddhi-service/pom.xml
+++ b/modules/siddhi-service/pom.xml
@@ -16,12 +16,11 @@
   ~ specific language governing permissions and limitations
   ~ under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>4.0.0-SNAPSHOT</version>
+        <version>4.0.0-M1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
@@ -97,10 +96,8 @@
                                 </filter>
                             </filters>
                             <transformers>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
-                                <transformer
-                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>org.wso2.siddhi.service.api.Application</mainClass>
                                 </transformer>
                             </transformers>
diff --git a/pom.xml b/pom.xml
index ab9997e541..bf82f22dd8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,8 +17,7 @@
   ~ under the License.
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
@@ -30,7 +29,7 @@
     <groupId>org.wso2.siddhi</groupId>
     <artifactId>siddhi</artifactId>
     <packaging>pom</packaging>
-    <version>4.0.0-SNAPSHOT</version>
+    <version>4.0.0-M1</version>
     <name>Siddhi</name>
     <description>Siddhi, high performing Complex Event Processing Engine</description>
 
@@ -538,7 +537,7 @@
         <url>https://github.com/wso2/siddhi.git</url>
         <developerConnection>scm:git:https://github.com/wso2/siddhi.git</developerConnection>
         <connection>scm:git:https://github.com/wso2/siddhi.git</connection>
-        <tag>HEAD</tag>
+        <tag>v4.0.0-M1</tag>
     </scm>
 
     <repositories>