diff --git a/all/pom.xml b/all/pom.xml
index e28108d28a..206f620ff8 100644
--- a/all/pom.xml
+++ b/all/pom.xml
@@ -20,11 +20,11 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>dubbo</artifactId>
-    <version>2.6.1</version>
+    <version>2.6.1-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>dubbo-all</name>
     <description>The all in one project of dubbo</description>
diff --git a/bom/pom.xml b/bom/pom.xml
index 58eb037ea6..5b70199d30 100644
--- a/bom/pom.xml
+++ b/bom/pom.xml
@@ -8,19 +8,19 @@
     <!--<parent>-->
     <!--<artifactId>dubbo-parent</artifactId>-->
     <!--<groupId>com.alibaba</groupId>-->
-    <!--<version>2.6.1</version>-->
+    <!--<version>2.6.1-SNAPSHOT</version>-->
     <!--<relativePath>../pom.xml</relativePath>-->
     <!--</parent>-->
     <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>7</version>
+        <groupId>org.apache</groupId>
+        <artifactId>apache</artifactId>
+        <version>18</version>
         <relativePath/>
     </parent>
 
     <groupId>com.alibaba</groupId>
     <artifactId>dubbo-bom</artifactId>
-    <version>2.6.1</version>
+    <version>2.6.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>dubbo-bom</name>
diff --git a/dependencies-bom/pom.xml b/dependencies-bom/pom.xml
index 503182b280..6433e2daa6 100644
--- a/dependencies-bom/pom.xml
+++ b/dependencies-bom/pom.xml
@@ -5,15 +5,15 @@
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>7</version>
-        <relativePath />
+        <groupId>org.apache</groupId>
+        <artifactId>apache</artifactId>
+        <version>18</version>
+        <relativePath/>
     </parent>
 
     <groupId>com.alibaba</groupId>
     <artifactId>dubbo-dependencies-bom</artifactId>
-    <version>2.6.1</version>
+    <version>2.6.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>dubbo-dependencies-bom</name>
diff --git a/dubbo-cluster/pom.xml b/dubbo-cluster/pom.xml
index 4464888a8d..9738c1746d 100644
--- a/dubbo-cluster/pom.xml
+++ b/dubbo-cluster/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-cluster</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-common/pom.xml b/dubbo-common/pom.xml
index 682fa1c802..b61f690f18 100644
--- a/dubbo-common/pom.xml
+++ b/dubbo-common/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-common</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-config/dubbo-config-api/pom.xml b/dubbo-config/dubbo-config-api/pom.xml
index ef25a876ce..1b701a5628 100644
--- a/dubbo-config/dubbo-config-api/pom.xml
+++ b/dubbo-config/dubbo-config-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-config</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-config-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-config/dubbo-config-spring/pom.xml b/dubbo-config/dubbo-config-spring/pom.xml
index 019537c58b..64b8e540e6 100644
--- a/dubbo-config/dubbo-config-spring/pom.xml
+++ b/dubbo-config/dubbo-config-spring/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-config</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-config-spring</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-config/pom.xml b/dubbo-config/pom.xml
index 87b7e0efcf..1c266b9ed6 100644
--- a/dubbo-config/pom.xml
+++ b/dubbo-config/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-config</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-container/dubbo-container-api/pom.xml b/dubbo-container/dubbo-container-api/pom.xml
index b0d58947a9..c31a598768 100644
--- a/dubbo-container/dubbo-container-api/pom.xml
+++ b/dubbo-container/dubbo-container-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-container</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-container-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-container/dubbo-container-log4j/pom.xml b/dubbo-container/dubbo-container-log4j/pom.xml
index 863ddcf4c0..a5051dfbb8 100644
--- a/dubbo-container/dubbo-container-log4j/pom.xml
+++ b/dubbo-container/dubbo-container-log4j/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-container</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-container-log4j</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-container/dubbo-container-logback/pom.xml b/dubbo-container/dubbo-container-logback/pom.xml
index 98fc54dd1d..7ba839cb93 100644
--- a/dubbo-container/dubbo-container-logback/pom.xml
+++ b/dubbo-container/dubbo-container-logback/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-container</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-container-logback</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-container/dubbo-container-spring/pom.xml b/dubbo-container/dubbo-container-spring/pom.xml
index b8b865bd16..40389fba2f 100644
--- a/dubbo-container/dubbo-container-spring/pom.xml
+++ b/dubbo-container/dubbo-container-spring/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-container</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-container-spring</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-container/pom.xml b/dubbo-container/pom.xml
index 3e4a20680e..dad749f1c5 100644
--- a/dubbo-container/pom.xml
+++ b/dubbo-container/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-container</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-demo/dubbo-demo-api/pom.xml b/dubbo-demo/dubbo-demo-api/pom.xml
index 19c17cc2d7..d550598b41 100644
--- a/dubbo-demo/dubbo-demo-api/pom.xml
+++ b/dubbo-demo/dubbo-demo-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-demo</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-demo-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-demo/dubbo-demo-consumer/pom.xml b/dubbo-demo/dubbo-demo-consumer/pom.xml
index 22a7ac433e..faa5b963b2 100644
--- a/dubbo-demo/dubbo-demo-consumer/pom.xml
+++ b/dubbo-demo/dubbo-demo-consumer/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-demo</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-demo-consumer</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-demo/dubbo-demo-provider/pom.xml b/dubbo-demo/dubbo-demo-provider/pom.xml
index ddfc888b2d..c2b1a19547 100644
--- a/dubbo-demo/dubbo-demo-provider/pom.xml
+++ b/dubbo-demo/dubbo-demo-provider/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-demo</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-demo-provider</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-demo/pom.xml b/dubbo-demo/pom.xml
index 051fd7d930..f176e63495 100644
--- a/dubbo-demo/pom.xml
+++ b/dubbo-demo/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-demo</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-filter/dubbo-filter-cache/pom.xml b/dubbo-filter/dubbo-filter-cache/pom.xml
index bd0791f325..a1c9d4a65e 100644
--- a/dubbo-filter/dubbo-filter-cache/pom.xml
+++ b/dubbo-filter/dubbo-filter-cache/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-filter</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-filter-cache</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-filter/dubbo-filter-validation/pom.xml b/dubbo-filter/dubbo-filter-validation/pom.xml
index 758434779d..024d5a299c 100644
--- a/dubbo-filter/dubbo-filter-validation/pom.xml
+++ b/dubbo-filter/dubbo-filter-validation/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-filter</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-filter-validation</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-filter/pom.xml b/dubbo-filter/pom.xml
index 427427886f..755a7bbc1a 100644
--- a/dubbo-filter/pom.xml
+++ b/dubbo-filter/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-filter</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-monitor/dubbo-monitor-api/pom.xml b/dubbo-monitor/dubbo-monitor-api/pom.xml
index 203de9e98f..d1af8490c9 100644
--- a/dubbo-monitor/dubbo-monitor-api/pom.xml
+++ b/dubbo-monitor/dubbo-monitor-api/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-monitor</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-monitor-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-monitor/dubbo-monitor-default/pom.xml b/dubbo-monitor/dubbo-monitor-default/pom.xml
index b9526075b0..0e74174c8f 100644
--- a/dubbo-monitor/dubbo-monitor-default/pom.xml
+++ b/dubbo-monitor/dubbo-monitor-default/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-monitor</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-monitor-default</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-monitor/pom.xml b/dubbo-monitor/pom.xml
index b8c39dbb43..162db8b0ad 100644
--- a/dubbo-monitor/pom.xml
+++ b/dubbo-monitor/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-monitor</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-plugin/dubbo-qos/pom.xml b/dubbo-plugin/dubbo-qos/pom.xml
index da75cdf1d9..2b99b386df 100644
--- a/dubbo-plugin/dubbo-qos/pom.xml
+++ b/dubbo-plugin/dubbo-qos/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-plugin</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dubbo-plugin/pom.xml b/dubbo-plugin/pom.xml
index aac6458d14..0b915d6ef8 100644
--- a/dubbo-plugin/pom.xml
+++ b/dubbo-plugin/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>dubbo-parent</artifactId>
         <groupId>com.alibaba</groupId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dubbo-registry/dubbo-registry-api/pom.xml b/dubbo-registry/dubbo-registry-api/pom.xml
index 9f432a2e0c..d9c59e4ed2 100644
--- a/dubbo-registry/dubbo-registry-api/pom.xml
+++ b/dubbo-registry/dubbo-registry-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-registry</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-registry/dubbo-registry-default/pom.xml b/dubbo-registry/dubbo-registry-default/pom.xml
index 1786647fe8..2a1ee1620e 100644
--- a/dubbo-registry/dubbo-registry-default/pom.xml
+++ b/dubbo-registry/dubbo-registry-default/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-registry</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry-default</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-registry/dubbo-registry-multicast/pom.xml b/dubbo-registry/dubbo-registry-multicast/pom.xml
index 2b64e6c188..ce895ba60b 100644
--- a/dubbo-registry/dubbo-registry-multicast/pom.xml
+++ b/dubbo-registry/dubbo-registry-multicast/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-registry</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry-multicast</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-registry/dubbo-registry-redis/pom.xml b/dubbo-registry/dubbo-registry-redis/pom.xml
index 9257094ab9..caee559a8e 100644
--- a/dubbo-registry/dubbo-registry-redis/pom.xml
+++ b/dubbo-registry/dubbo-registry-redis/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-registry</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry-redis</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-registry/dubbo-registry-zookeeper/pom.xml b/dubbo-registry/dubbo-registry-zookeeper/pom.xml
index b1ba554622..f7e42ad31f 100644
--- a/dubbo-registry/dubbo-registry-zookeeper/pom.xml
+++ b/dubbo-registry/dubbo-registry-zookeeper/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-registry</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry-zookeeper</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-registry/pom.xml b/dubbo-registry/pom.xml
index cf6ab87b6e..4b9613f81d 100644
--- a/dubbo-registry/pom.xml
+++ b/dubbo-registry/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-registry</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-api/pom.xml b/dubbo-remoting/dubbo-remoting-api/pom.xml
index 73cc9195bc..a2ecf7afc0 100644
--- a/dubbo-remoting/dubbo-remoting-api/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-grizzly/pom.xml b/dubbo-remoting/dubbo-remoting-grizzly/pom.xml
index ef774e7bdf..3b2dc9192c 100644
--- a/dubbo-remoting/dubbo-remoting-grizzly/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-grizzly/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-grizzly</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-http/pom.xml b/dubbo-remoting/dubbo-remoting-http/pom.xml
index beb49e17b4..2b05f17374 100644
--- a/dubbo-remoting/dubbo-remoting-http/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-http/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-http</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-mina/pom.xml b/dubbo-remoting/dubbo-remoting-mina/pom.xml
index a9958f1366..9e02ea28ba 100644
--- a/dubbo-remoting/dubbo-remoting-mina/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-mina/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-mina</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-netty/pom.xml b/dubbo-remoting/dubbo-remoting-netty/pom.xml
index e281ddcea3..f0d7cc7c62 100644
--- a/dubbo-remoting/dubbo-remoting-netty/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-netty/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-netty</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-netty4/pom.xml b/dubbo-remoting/dubbo-remoting-netty4/pom.xml
index 836c88d3c5..397ae756f5 100644
--- a/dubbo-remoting/dubbo-remoting-netty4/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-netty4/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>dubbo-remoting</artifactId>
         <groupId>com.alibaba</groupId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dubbo-remoting/dubbo-remoting-p2p/pom.xml b/dubbo-remoting/dubbo-remoting-p2p/pom.xml
index 9cec967aaa..ffab44011c 100644
--- a/dubbo-remoting/dubbo-remoting-p2p/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-p2p/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-p2p</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/dubbo-remoting-zookeeper/pom.xml b/dubbo-remoting/dubbo-remoting-zookeeper/pom.xml
index 2ff33976d1..a79e3d5084 100644
--- a/dubbo-remoting/dubbo-remoting-zookeeper/pom.xml
+++ b/dubbo-remoting/dubbo-remoting-zookeeper/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-remoting</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting-zookeeper</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-remoting/pom.xml b/dubbo-remoting/pom.xml
index da07bb131e..f822268b9d 100644
--- a/dubbo-remoting/pom.xml
+++ b/dubbo-remoting/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-remoting</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-api/pom.xml b/dubbo-rpc/dubbo-rpc-api/pom.xml
index 44ceec52df..0f15ef829b 100644
--- a/dubbo-rpc/dubbo-rpc-api/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-api/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-dubbo/pom.xml b/dubbo-rpc/dubbo-rpc-dubbo/pom.xml
index ff3c427177..fef7697fd8 100644
--- a/dubbo-rpc/dubbo-rpc-dubbo/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-dubbo/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-dubbo</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-hessian/pom.xml b/dubbo-rpc/dubbo-rpc-hessian/pom.xml
index 114c65ee4b..5f8acbe88c 100644
--- a/dubbo-rpc/dubbo-rpc-hessian/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-hessian/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-hessian</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-http/pom.xml b/dubbo-rpc/dubbo-rpc-http/pom.xml
index 2e953ad6ac..aa408ed69c 100644
--- a/dubbo-rpc/dubbo-rpc-http/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-http/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-http</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-injvm/pom.xml b/dubbo-rpc/dubbo-rpc-injvm/pom.xml
index d3529e4888..587486aa2f 100644
--- a/dubbo-rpc/dubbo-rpc-injvm/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-injvm/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-injvm</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-memcached/pom.xml b/dubbo-rpc/dubbo-rpc-memcached/pom.xml
index ed50bbdbf7..a4e6fbf3f7 100644
--- a/dubbo-rpc/dubbo-rpc-memcached/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-memcached/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-memcached</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-redis/pom.xml b/dubbo-rpc/dubbo-rpc-redis/pom.xml
index c9f5a98cf5..ddc640dc75 100644
--- a/dubbo-rpc/dubbo-rpc-redis/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-redis/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-redis</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-rest/pom.xml b/dubbo-rpc/dubbo-rpc-rest/pom.xml
index 4a8a4b149e..d5d7661559 100644
--- a/dubbo-rpc/dubbo-rpc-rest/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-rest/pom.xml
@@ -19,7 +19,7 @@
 	<parent>
 		<groupId>com.alibaba</groupId>
 		<artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
 	</parent>
 	<artifactId>dubbo-rpc-rest</artifactId>
 	<packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-rmi/pom.xml b/dubbo-rpc/dubbo-rpc-rmi/pom.xml
index 1624ea187e..93eca1f435 100644
--- a/dubbo-rpc/dubbo-rpc-rmi/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-rmi/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-rmi</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-thrift/pom.xml b/dubbo-rpc/dubbo-rpc-thrift/pom.xml
index 002eb7e2a3..bd29d365fc 100644
--- a/dubbo-rpc/dubbo-rpc-thrift/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-thrift/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-thrift</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/dubbo-rpc-webservice/pom.xml b/dubbo-rpc/dubbo-rpc-webservice/pom.xml
index aca13e223a..e9c1d18e28 100644
--- a/dubbo-rpc/dubbo-rpc-webservice/pom.xml
+++ b/dubbo-rpc/dubbo-rpc-webservice/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-rpc</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc-webservice</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-rpc/pom.xml b/dubbo-rpc/pom.xml
index 4be7200ceb..24eb55e4bd 100644
--- a/dubbo-rpc/pom.xml
+++ b/dubbo-rpc/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-rpc</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-api/pom.xml b/dubbo-serialization/dubbo-serialization-api/pom.xml
index 6a22ff86b8..54f5022113 100644
--- a/dubbo-serialization/dubbo-serialization-api/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-api/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-api</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-fastjson/pom.xml b/dubbo-serialization/dubbo-serialization-fastjson/pom.xml
index c1dfe7e205..8bd60f3120 100644
--- a/dubbo-serialization/dubbo-serialization-fastjson/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-fastjson/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-fastjson</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-fst/pom.xml b/dubbo-serialization/dubbo-serialization-fst/pom.xml
index 6f903d4e8e..c249709ae2 100644
--- a/dubbo-serialization/dubbo-serialization-fst/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-fst/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-fst</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-hessian2/pom.xml b/dubbo-serialization/dubbo-serialization-hessian2/pom.xml
index 927b8feb20..cf32771703 100644
--- a/dubbo-serialization/dubbo-serialization-hessian2/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-hessian2/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-hessian2</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-jdk/pom.xml b/dubbo-serialization/dubbo-serialization-jdk/pom.xml
index 1e84db6e42..a27d7cdfcc 100644
--- a/dubbo-serialization/dubbo-serialization-jdk/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-jdk/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-jdk</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/dubbo-serialization-kryo/pom.xml b/dubbo-serialization/dubbo-serialization-kryo/pom.xml
index f1757d2505..531d6071bc 100644
--- a/dubbo-serialization/dubbo-serialization-kryo/pom.xml
+++ b/dubbo-serialization/dubbo-serialization-kryo/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-serialization</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization-kryo</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-serialization/pom.xml b/dubbo-serialization/pom.xml
index d8f5912eef..d0f1c65921 100644
--- a/dubbo-serialization/pom.xml
+++ b/dubbo-serialization/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-serialization</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-test/dubbo-test-benchmark/pom.xml b/dubbo-test/dubbo-test-benchmark/pom.xml
index 6c3fc10b11..eb397275ef 100644
--- a/dubbo-test/dubbo-test-benchmark/pom.xml
+++ b/dubbo-test/dubbo-test-benchmark/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-test</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-test-benchmark</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-test/dubbo-test-compatibility/dubbo-test-spring3/pom.xml b/dubbo-test/dubbo-test-compatibility/dubbo-test-spring3/pom.xml
index 894de82473..32ece066fb 100644
--- a/dubbo-test/dubbo-test-compatibility/dubbo-test-spring3/pom.xml
+++ b/dubbo-test/dubbo-test-compatibility/dubbo-test-spring3/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>dubbo-test-compatibility</artifactId>
         <groupId>com.alibaba</groupId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dubbo-test/dubbo-test-compatibility/pom.xml b/dubbo-test/dubbo-test-compatibility/pom.xml
index 3a2de9c65a..6c82d7997d 100644
--- a/dubbo-test/dubbo-test-compatibility/pom.xml
+++ b/dubbo-test/dubbo-test-compatibility/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-test</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-test-compatibility</artifactId>
     <packaging>pom</packaging>
diff --git a/dubbo-test/dubbo-test-examples/pom.xml b/dubbo-test/dubbo-test-examples/pom.xml
index fd9cd1c6c2..2238dce22d 100644
--- a/dubbo-test/dubbo-test-examples/pom.xml
+++ b/dubbo-test/dubbo-test-examples/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-test</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-test-examples</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-test/dubbo-test-integration/pom.xml b/dubbo-test/dubbo-test-integration/pom.xml
index bfe38bc549..797d1508d1 100644
--- a/dubbo-test/dubbo-test-integration/pom.xml
+++ b/dubbo-test/dubbo-test-integration/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-test</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-test-integration</artifactId>
     <packaging>jar</packaging>
diff --git a/dubbo-test/pom.xml b/dubbo-test/pom.xml
index 022ad8f91b..68bd790fc9 100644
--- a/dubbo-test/pom.xml
+++ b/dubbo-test/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>dubbo-test</artifactId>
     <packaging>pom</packaging>
diff --git a/hessian-lite/pom.xml b/hessian-lite/pom.xml
index 07eec26931..be38f4421b 100644
--- a/hessian-lite/pom.xml
+++ b/hessian-lite/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>com.alibaba</groupId>
         <artifactId>dubbo-parent</artifactId>
-        <version>2.6.1</version>
+        <version>2.6.1-SNAPSHOT</version>
     </parent>
     <artifactId>hessian-lite</artifactId>
     <packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 96ba40242e..5d033a3f67 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,14 +20,14 @@
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>7</version>
+        <groupId>org.apache</groupId>
+        <artifactId>apache</artifactId>
+        <version>18</version>
     </parent>
 
     <groupId>com.alibaba</groupId>
     <artifactId>dubbo-parent</artifactId>
-    <version>2.6.1</version>
+    <version>2.6.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>${project.artifactId}</name>
@@ -142,7 +142,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>dubbo-dependencies-bom</artifactId>
-                <version>2.6.1</version>
+                <version>2.6.1-SNAPSHOT</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>