upgrade to 2.1.5
diff --git a/elastic-job-cloud/elastic-job-cloud-executor/pom.xml b/elastic-job-cloud/elastic-job-cloud-executor/pom.xml
index 983866a..57538f1 100644
--- a/elastic-job-cloud/elastic-job-cloud-executor/pom.xml
+++ b/elastic-job-cloud/elastic-job-cloud-executor/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>elastic-job-cloud</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-cloud-executor</artifactId>
diff --git a/elastic-job-cloud/elastic-job-cloud-scheduler/pom.xml b/elastic-job-cloud/elastic-job-cloud-scheduler/pom.xml
index acb7b0d..932e92b 100644
--- a/elastic-job-cloud/elastic-job-cloud-scheduler/pom.xml
+++ b/elastic-job-cloud/elastic-job-cloud-scheduler/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>elastic-job-cloud</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-cloud-scheduler</artifactId>
diff --git a/elastic-job-cloud/pom.xml b/elastic-job-cloud/pom.xml
index 9e27ef2..662128e 100644
--- a/elastic-job-cloud/pom.xml
+++ b/elastic-job-cloud/pom.xml
@@ -4,7 +4,7 @@
     <parent>

         <artifactId>elastic-job</artifactId>

         <groupId>com.dangdang</groupId>

-        <version>2.1.5-SNAPSHOT</version>

+        <version>2.1.5</version>

     </parent>

     <packaging>pom</packaging>

     <artifactId>elastic-job-cloud</artifactId>

diff --git a/elastic-job-common/elastic-job-common-core/pom.xml b/elastic-job-common/elastic-job-common-core/pom.xml
index d10fb12..498cf45 100644
--- a/elastic-job-common/elastic-job-common-core/pom.xml
+++ b/elastic-job-common/elastic-job-common-core/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.dangdang</groupId>
         <artifactId>elastic-job-common</artifactId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <artifactId>elastic-job-common-core</artifactId>
     <name>${project.artifactId}</name>
diff --git a/elastic-job-common/elastic-job-common-restful/pom.xml b/elastic-job-common/elastic-job-common-restful/pom.xml
index 1c28713..04f3adb 100644
--- a/elastic-job-common/elastic-job-common-restful/pom.xml
+++ b/elastic-job-common/elastic-job-common-restful/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>elastic-job-common</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-common-restful</artifactId>
diff --git a/elastic-job-common/pom.xml b/elastic-job-common/pom.xml
index 628fd83..62a95b1 100644
--- a/elastic-job-common/pom.xml
+++ b/elastic-job-common/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>elastic-job</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <packaging>pom</packaging>
     <artifactId>elastic-job-common</artifactId>
diff --git a/elastic-job-example/elastic-job-example-cloud/pom.xml b/elastic-job-example/elastic-job-example-cloud/pom.xml
index 84b31c4..f3fb1ad 100644
--- a/elastic-job-example/elastic-job-example-cloud/pom.xml
+++ b/elastic-job-example/elastic-job-example-cloud/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-example-cloud</artifactId>
diff --git a/elastic-job-example/elastic-job-example-embed-zk/pom.xml b/elastic-job-example/elastic-job-example-embed-zk/pom.xml
index a83ef2e..2a95c26 100644
--- a/elastic-job-example/elastic-job-example-embed-zk/pom.xml
+++ b/elastic-job-example/elastic-job-example-embed-zk/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-example-embed-zk</artifactId>
diff --git a/elastic-job-example/elastic-job-example-jobs/pom.xml b/elastic-job-example/elastic-job-example-jobs/pom.xml
index 5ec4175..d154552 100644
--- a/elastic-job-example/elastic-job-example-jobs/pom.xml
+++ b/elastic-job-example/elastic-job-example-jobs/pom.xml
@@ -2,7 +2,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-example-jobs</artifactId>
diff --git a/elastic-job-example/elastic-job-example-lite-java/pom.xml b/elastic-job-example/elastic-job-example-lite-java/pom.xml
index 32412c7..185f9f2 100644
--- a/elastic-job-example/elastic-job-example-lite-java/pom.xml
+++ b/elastic-job-example/elastic-job-example-lite-java/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-example-lite-java</artifactId>
diff --git a/elastic-job-example/elastic-job-example-lite-spring/pom.xml b/elastic-job-example/elastic-job-example-lite-spring/pom.xml
index 5816b8f..b5c5162 100644
--- a/elastic-job-example/elastic-job-example-lite-spring/pom.xml
+++ b/elastic-job-example/elastic-job-example-lite-spring/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>elastic-job-example-lite-spring</artifactId>
diff --git a/elastic-job-example/elastic-job-example-lite-springboot/pom.xml b/elastic-job-example/elastic-job-example-lite-springboot/pom.xml
index 01f8c8e..d656756 100644
--- a/elastic-job-example/elastic-job-example-lite-springboot/pom.xml
+++ b/elastic-job-example/elastic-job-example-lite-springboot/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>elastic-job-example</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     
diff --git a/elastic-job-example/pom.xml b/elastic-job-example/pom.xml
index 866c5d8..4a564e2 100644
--- a/elastic-job-example/pom.xml
+++ b/elastic-job-example/pom.xml
@@ -5,7 +5,7 @@
     <groupId>com.dangdang</groupId>
     <name>${project.artifactId}</name>
     <packaging>pom</packaging>
-    <version>2.1.5-SNAPSHOT</version>
+    <version>2.1.5</version>
     
     <modules>
         <module>elastic-job-example-jobs</module>
@@ -20,7 +20,7 @@
     
     <properties>
         <java.version>1.7</java.version>
-        <elastic-job.version>2.1.5-SNAPSHOT</elastic-job.version>
+        <elastic-job.version>2.1.5</elastic-job.version>
         <curator.version>2.10.0</curator.version>
         <springframework.version>4.3.4.RELEASE</springframework.version>
         <slf4j.version>1.7.7</slf4j.version>
diff --git a/elastic-job-lite/elastic-job-lite-console/pom.xml b/elastic-job-lite/elastic-job-lite-console/pom.xml
index 544cf27..1fafcf1 100644
--- a/elastic-job-lite/elastic-job-lite-console/pom.xml
+++ b/elastic-job-lite/elastic-job-lite-console/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.dangdang</groupId>
         <artifactId>elastic-job-lite</artifactId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <artifactId>elastic-job-lite-console</artifactId>
     <packaging>jar</packaging>
diff --git a/elastic-job-lite/elastic-job-lite-core/pom.xml b/elastic-job-lite/elastic-job-lite-core/pom.xml
index 06df7b1..557b095 100644
--- a/elastic-job-lite/elastic-job-lite-core/pom.xml
+++ b/elastic-job-lite/elastic-job-lite-core/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.dangdang</groupId>
         <artifactId>elastic-job-lite</artifactId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <artifactId>elastic-job-lite-core</artifactId>
     <name>${project.artifactId}</name>
diff --git a/elastic-job-lite/elastic-job-lite-lifecycle/pom.xml b/elastic-job-lite/elastic-job-lite-lifecycle/pom.xml
index 418622a..92cceb7 100644
--- a/elastic-job-lite/elastic-job-lite-lifecycle/pom.xml
+++ b/elastic-job-lite/elastic-job-lite-lifecycle/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>elastic-job-lite</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <artifactId>elastic-job-lite-lifecycle</artifactId>
     <name>${project.artifactId}</name>
diff --git a/elastic-job-lite/elastic-job-lite-spring/pom.xml b/elastic-job-lite/elastic-job-lite-spring/pom.xml
index c8cd99c..6f49192 100644
--- a/elastic-job-lite/elastic-job-lite-spring/pom.xml
+++ b/elastic-job-lite/elastic-job-lite-spring/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>com.dangdang</groupId>
         <artifactId>elastic-job-lite</artifactId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <artifactId>elastic-job-lite-spring</artifactId>
     <name>${project.artifactId}</name>
diff --git a/elastic-job-lite/pom.xml b/elastic-job-lite/pom.xml
index c802fb3..98bce62 100644
--- a/elastic-job-lite/pom.xml
+++ b/elastic-job-lite/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>elastic-job</artifactId>
         <groupId>com.dangdang</groupId>
-        <version>2.1.5-SNAPSHOT</version>
+        <version>2.1.5</version>
     </parent>
     <packaging>pom</packaging>
     <artifactId>elastic-job-lite</artifactId>
diff --git a/pom.xml b/pom.xml
index 0a7756a..62d9fb4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.dangdang</groupId>
     <artifactId>elastic-job</artifactId>
-    <version>2.1.5-SNAPSHOT</version>
+    <version>2.1.5</version>
     <packaging>pom</packaging>
     <name>${project.artifactId}</name>
     <description>Elastic-Job - distributed scheduled job solution</description>