diff --git a/modules/siddhi-core/pom.xml b/modules/siddhi-core/pom.xml
index 651b8586ae..b430bb3049 100644
--- a/modules/siddhi-core/pom.xml
+++ b/modules/siddhi-core/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../../pom.xml</relativePath>
 
     </parent>
diff --git a/modules/siddhi-extensions/eval-script/pom.xml b/modules/siddhi-extensions/eval-script/pom.xml
index 3387a1f6f6..8769d95291 100644
--- a/modules/siddhi-extensions/eval-script/pom.xml
+++ b/modules/siddhi-extensions/eval-script/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>siddhi-extensions</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/event-table/pom.xml b/modules/siddhi-extensions/event-table/pom.xml
index 320c353373..dd726eef5a 100644
--- a/modules/siddhi-extensions/event-table/pom.xml
+++ b/modules/siddhi-extensions/event-table/pom.xml
@@ -16,12 +16,11 @@
   ~ 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>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/geo/pom.xml b/modules/siddhi-extensions/geo/pom.xml
index 8b42a9cce3..12bc60c4e4 100644
--- a/modules/siddhi-extensions/geo/pom.xml
+++ b/modules/siddhi-extensions/geo/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>siddhi-extensions</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/math/pom.xml b/modules/siddhi-extensions/math/pom.xml
index 8d9ec678da..279741076f 100644
--- a/modules/siddhi-extensions/math/pom.xml
+++ b/modules/siddhi-extensions/math/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/ml/pom.xml b/modules/siddhi-extensions/ml/pom.xml
index beb21d0ad1..2b3c4a427c 100644
--- a/modules/siddhi-extensions/ml/pom.xml
+++ b/modules/siddhi-extensions/ml/pom.xml
@@ -15,13 +15,11 @@
   ~ 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>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/siddhi-extensions/pom.xml b/modules/siddhi-extensions/pom.xml
index 7678afcf8d..cbc20af5f5 100644
--- a/modules/siddhi-extensions/pom.xml
+++ b/modules/siddhi-extensions/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/regex/pom.xml b/modules/siddhi-extensions/regex/pom.xml
index 81303387e2..53b1935993 100644
--- a/modules/siddhi-extensions/regex/pom.xml
+++ b/modules/siddhi-extensions/regex/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/string/pom.xml b/modules/siddhi-extensions/string/pom.xml
index 4f01e5fcf1..9fe6d2e8ba 100644
--- a/modules/siddhi-extensions/string/pom.xml
+++ b/modules/siddhi-extensions/string/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/time/pom.xml b/modules/siddhi-extensions/time/pom.xml
index 2ef4d2eb81..af986a7066 100644
--- a/modules/siddhi-extensions/time/pom.xml
+++ b/modules/siddhi-extensions/time/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-extensions</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/siddhi-extensions/timeseries/pom.xml b/modules/siddhi-extensions/timeseries/pom.xml
index f7e7d20998..952fbc9c03 100644
--- a/modules/siddhi-extensions/timeseries/pom.xml
+++ b/modules/siddhi-extensions/timeseries/pom.xml
@@ -15,13 +15,11 @@
 ~ 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>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</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 5920fc697a..131755854f 100644
--- a/modules/siddhi-query-api/pom.xml
+++ b/modules/siddhi-query-api/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
         <relativePath>../../pom.xml</relativePath>
 
     </parent>
diff --git a/modules/siddhi-query-compiler/pom.xml b/modules/siddhi-query-compiler/pom.xml
index 4afec1660e..cc379bf8f7 100644
--- a/modules/siddhi-query-compiler/pom.xml
+++ b/modules/siddhi-query-compiler/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</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 bd74ecdd63..1ece3f1854 100644
--- a/modules/siddhi-samples/performance-samples/pom.xml
+++ b/modules/siddhi-samples/performance-samples/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.wso2.siddhi</groupId>
         <artifactId>siddhi-samples</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</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 3884e02bdd..ed3c66f89e 100644
--- a/modules/siddhi-samples/pom.xml
+++ b/modules/siddhi-samples/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <artifactId>siddhi</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</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 d273cef7a5..966f5a73ec 100644
--- a/modules/siddhi-samples/quick-start-samples/pom.xml
+++ b/modules/siddhi-samples/quick-start-samples/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>siddhi-samples</artifactId>
         <groupId>org.wso2.siddhi</groupId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0-alpha</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index 56f6e0379f..531e326a16 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,8 +15,7 @@
   ~ 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">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
@@ -28,7 +27,7 @@
     <groupId>org.wso2.siddhi</groupId>
     <artifactId>siddhi</artifactId>
     <packaging>pom</packaging>
-    <version>3.0.0-SNAPSHOT</version>
+    <version>3.0.0-alpha</version>
     <name>Siddhi</name>
     <description>Siddhi, high performing Complex Event Processing Engine</description>
 
@@ -341,7 +340,7 @@
         <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>v3.0.0-alpha</tag>
     </scm>
 
     <repositories>