Bumping version to 2.4-SNAPSHOT

Change-Id: I1ad4301cab0ead4da5352da0a456e81ab5e8edfc
diff --git a/compiler/plugin/pom.xml b/compiler/plugin/pom.xml
index 3ea28f0..acba095 100644
--- a/compiler/plugin/pom.xml
+++ b/compiler/plugin/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-yang-compiler</artifactId>
-        <version>2.3</version>
+        <version>2.4-SNAPSHOT</version>
     </parent>
 
     <artifactId>onos-yang-compiler-plugin</artifactId>