diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
index 35916c0..c61994d 100755
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
@@ -1,6 +1,6 @@
 admin_name=任務調度中心
 admin_name_full=分布式任務調度平臺XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
index 35916c0..c61994d 100755
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
@@ -1,6 +1,6 @@
 admin_name=任務調度中心
 admin_name_full=分布式任務調度平臺XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 7a03592..92ebf73 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
 	<packaging>jar</packaging>

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
index 35916c0..c61994d 100755
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
@@ -1,6 +1,6 @@
 admin_name=任務調度中心
 admin_name_full=分布式任務調度平臺XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 7a03592..92ebf73 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-executor-samples/pom.xml b/xxl-job-executor-samples/pom.xml
index 3ad85ff..11187b8 100644
--- a/xxl-job-executor-samples/pom.xml
+++ b/xxl-job-executor-samples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-samples</artifactId>
     <packaging>pom</packaging>

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
index 35916c0..c61994d 100755
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
@@ -1,6 +1,6 @@
 admin_name=任務調度中心
 admin_name_full=分布式任務調度平臺XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 7a03592..92ebf73 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-executor-samples/pom.xml b/xxl-job-executor-samples/pom.xml
index 3ad85ff..11187b8 100644
--- a/xxl-job-executor-samples/pom.xml
+++ b/xxl-job-executor-samples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-samples</artifactId>
     <packaging>pom</packaging>
diff --git a/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml b/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
index e01d4d4..7972677 100644
--- a/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
+++ b/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-sample-frameless</artifactId>
     <packaging>jar</packaging>

diff --git a/doc/db/tables_xxl_job.sql b/doc/db/tables_xxl_job.sql
index ed8ecae..33dbb0c 100644
--- a/doc/db/tables_xxl_job.sql
+++ b/doc/db/tables_xxl_job.sql
@@ -1,5 +1,5 @@
 #
-# XXL-JOB v2.3.1
+# XXL-JOB v2.4.0-SNAPSHOT
 # Copyright (c) 2015-present, xuxueli.
 
 CREATE database if NOT EXISTS `xxl_job` default character set utf8mb4 collate utf8mb4_unicode_ci;
diff --git a/pom.xml b/pom.xml
index 4b068b1..a4cdc76 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.xuxueli</groupId>
 	<artifactId>xxl-job</artifactId>
-	<version>2.3.1</version>
+	<version>2.4.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>${project.artifactId}</name>
diff --git a/xxl-job-admin/pom.xml b/xxl-job-admin/pom.xml
index b10941f..d1eb795 100644
--- a/xxl-job-admin/pom.xml
+++ b/xxl-job-admin/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-admin</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-admin/src/main/resources/i18n/message_en.properties b/xxl-job-admin/src/main/resources/i18n/message_en.properties
index 001f841..2e91fd6 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_en.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_en.properties
@@ -1,6 +1,6 @@
 admin_name=Scheduling Center
 admin_name_full=Distributed Task Scheduling Platform XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=en
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
index 69ef6e3..7891570 100644
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_CN.properties
@@ -1,6 +1,6 @@
 admin_name=任务调度中心
 admin_name_full=分布式任务调度平台XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
index 35916c0..c61994d 100755
--- a/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
+++ b/xxl-job-admin/src/main/resources/i18n/message_zh_TC.properties
@@ -1,6 +1,6 @@
 admin_name=任務調度中心
 admin_name_full=分布式任務調度平臺XXL-JOB
-admin_version=2.3.1
+admin_version=2.4.0-SNAPSHOT
 admin_i18n=
 
 ## system
diff --git a/xxl-job-core/pom.xml b/xxl-job-core/pom.xml
index 7a03592..92ebf73 100644
--- a/xxl-job-core/pom.xml
+++ b/xxl-job-core/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.xuxueli</groupId>
 		<artifactId>xxl-job</artifactId>
-		<version>2.3.1</version>
+		<version>2.4.0-SNAPSHOT</version>
 	</parent>
 	<artifactId>xxl-job-core</artifactId>
 	<packaging>jar</packaging>
diff --git a/xxl-job-executor-samples/pom.xml b/xxl-job-executor-samples/pom.xml
index 3ad85ff..11187b8 100644
--- a/xxl-job-executor-samples/pom.xml
+++ b/xxl-job-executor-samples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-samples</artifactId>
     <packaging>pom</packaging>
diff --git a/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml b/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
index e01d4d4..7972677 100644
--- a/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
+++ b/xxl-job-executor-samples/xxl-job-executor-sample-frameless/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-sample-frameless</artifactId>
     <packaging>jar</packaging>
diff --git a/xxl-job-executor-samples/xxl-job-executor-sample-springboot/pom.xml b/xxl-job-executor-samples/xxl-job-executor-sample-springboot/pom.xml
index 84ea9ea..9175792 100644
--- a/xxl-job-executor-samples/xxl-job-executor-sample-springboot/pom.xml
+++ b/xxl-job-executor-samples/xxl-job-executor-sample-springboot/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.xuxueli</groupId>
         <artifactId>xxl-job-executor-samples</artifactId>
-        <version>2.3.1</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
     <artifactId>xxl-job-executor-sample-springboot</artifactId>
     <packaging>jar</packaging>