prepare release 2.8.0(keep version or will release wrong artifacts) (#3375)

diff --git a/README.md b/README.md
index fb8b71d..137ab89 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,13 @@
 
 Apache ServiceComb Java Chassis is a Software Development Kit (SDK) for rapid development of microservices in Java, providing service registration, service discovery, dynamic routing, and service management features
 
+# releases
+
+| Release Train | Latest Version  | Compiled JDK Version | Tested JDK Version            |
+|---------------|-----------------|----------------------|-------------------------------|
+| 2.x.x         | 2.8.0           | OpenJDK 8            | OpenJDK 8, 11, 17 | 
+| 1.x.x         | 1.3.8           | OpenJDK 8             | OpenJDK 8                        |
+
 # Why use Java Chassis
 
 - **High performance**
@@ -25,12 +32,6 @@
 
   Java Chassis provides a lot of features for microservice governance and monitor.
 
-- **Multi languages support**
-
-  Via [ServiceComb Mesher](https://github.com/apache/servicecomb-mesher), the microservices
-  built by other languages are also able to work with ServiceComb components. And Java Chassis can communicate with such
-  microservices and make use of the built-in capabilities.
-
 # Quick Start
 
 Provider service:
diff --git a/README_ZH.md b/README_ZH.md
index 7bf1fc3..d15ba83 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -10,6 +10,13 @@
 
 [design]: https://servicecomb.apache.org/references/java-chassis/zh_CN/start/design.html
 
+# releases
+
+| 版本火车  | 最新版本  | 编译的JDK版本  | 支持的JDK版本 |
+|-------|-------|-----------|-------------------|
+| 2.x.x | 2.8.0 | OpenJDK 8 | OpenJDK 8, 11, 17 | 
+| 1.x.x | 1.3.8 | OpenJDK 8 | OpenJDK 8         |
+
 # 为什么使用Java Chassis
 
 - **高性能**
@@ -85,9 +92,9 @@
 
 # 联系我们
 
-Bugs: [issues](https://issues.apache.org/jira/browse/SCB)
+报告缺陷: [issues](https://issues.apache.org/jira/browse/SCB)
 
-mailing list: [subscribe](mailto:dev-subscribe@servicecomb.apache.org)  [dev](https://lists.apache.org/list.html?dev@servicecomb.apache.org)
+邮件列表: [subscribe](mailto:dev-subscribe@servicecomb.apache.org)  [dev](https://lists.apache.org/list.html?dev@servicecomb.apache.org)
 
 
 # 参与代码提交
diff --git a/archetypes/business-service-jaxrs/pom.xml b/archetypes/business-service-jaxrs/pom.xml
index 3d26969..4524e51 100644
--- a/archetypes/business-service-jaxrs/pom.xml
+++ b/archetypes/business-service-jaxrs/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>archetypes</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <groupId>org.apache.servicecomb.archetypes</groupId>
diff --git a/archetypes/business-service-pojo/pom.xml b/archetypes/business-service-pojo/pom.xml
index 8c2483a..f835a6a 100644
--- a/archetypes/business-service-pojo/pom.xml
+++ b/archetypes/business-service-pojo/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>archetypes</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <groupId>org.apache.servicecomb.archetypes</groupId>
diff --git a/archetypes/business-service-spring-boot2-starter/pom.xml b/archetypes/business-service-spring-boot2-starter/pom.xml
index 2f8d37e..1930520 100644
--- a/archetypes/business-service-spring-boot2-starter/pom.xml
+++ b/archetypes/business-service-spring-boot2-starter/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>archetypes</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <groupId>org.apache.servicecomb.archetypes</groupId>
diff --git a/archetypes/business-service-springmvc/pom.xml b/archetypes/business-service-springmvc/pom.xml
index 9585e1d..540e258 100644
--- a/archetypes/business-service-springmvc/pom.xml
+++ b/archetypes/business-service-springmvc/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>archetypes</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <groupId>org.apache.servicecomb.archetypes</groupId>
diff --git a/archetypes/pom.xml b/archetypes/pom.xml
index 9673acc..bdf346a 100644
--- a/archetypes/pom.xml
+++ b/archetypes/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
 
diff --git a/clients/config-center-client/pom.xml b/clients/config-center-client/pom.xml
index 4c3ad36..9bfa993 100644
--- a/clients/config-center-client/pom.xml
+++ b/clients/config-center-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>clients</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/clients/config-common/pom.xml b/clients/config-common/pom.xml
index d3f7f90..b3e1688 100644
--- a/clients/config-common/pom.xml
+++ b/clients/config-common/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>clients</artifactId>
         <groupId>org.apache.servicecomb</groupId>
-        <version>${revision}</version>
+        <version>2.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/clients/config-kie-client/pom.xml b/clients/config-kie-client/pom.xml
index 69aff12..a930d82 100644
--- a/clients/config-kie-client/pom.xml
+++ b/clients/config-kie-client/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>clients</artifactId>
         <groupId>org.apache.servicecomb</groupId>
-        <version>${revision}</version>
+        <version>2.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/clients/dashboard-client/pom.xml b/clients/dashboard-client/pom.xml
index db47fe8..0bd1738 100644
--- a/clients/dashboard-client/pom.xml
+++ b/clients/dashboard-client/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>clients</artifactId>
         <groupId>org.apache.servicecomb</groupId>
-        <version>${revision}</version>
+        <version>2.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/clients/http-client-common/pom.xml b/clients/http-client-common/pom.xml
index 3f352e9..d08d76d 100644
--- a/clients/http-client-common/pom.xml
+++ b/clients/http-client-common/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>clients</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/clients/pom.xml b/clients/pom.xml
index 00679e5..c6c7808 100644
--- a/clients/pom.xml
+++ b/clients/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/clients/service-center-client/pom.xml b/clients/service-center-client/pom.xml
index 5df37d6..f95571a 100755
--- a/clients/service-center-client/pom.xml
+++ b/clients/service-center-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>clients</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/common/common-access-log/pom.xml b/common/common-access-log/pom.xml
index 8ed76cc..298268b 100644
--- a/common/common-access-log/pom.xml
+++ b/common/common-access-log/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>common</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/common/common-protobuf/pom.xml b/common/common-protobuf/pom.xml
index 5475687..e6fe267 100644
--- a/common/common-protobuf/pom.xml
+++ b/common/common-protobuf/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>common</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>common-protobuf</artifactId>
   <name>Java Chassis::Common::Protobuf</name>
diff --git a/common/common-rest/pom.xml b/common/common-rest/pom.xml
index 64c7d8a..d9823bb 100644
--- a/common/common-rest/pom.xml
+++ b/common/common-rest/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>common</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>common-rest</artifactId>
diff --git a/common/pom.xml b/common/pom.xml
index 5024b4a..38543f2 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>common</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index d0c72eb..3039bb5 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>java-chassis-core</artifactId>
diff --git a/coverage-reports/pom.xml b/coverage-reports/pom.xml
index 8d52e90..6902435 100644
--- a/coverage-reports/pom.xml
+++ b/coverage-reports/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/demo/demo-crossapp/crossapp-client/pom.xml b/demo/demo-crossapp/crossapp-client/pom.xml
index cee8be3..d9d0b6f 100644
--- a/demo/demo-crossapp/crossapp-client/pom.xml
+++ b/demo/demo-crossapp/crossapp-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-crossapp</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>crossapp-client</artifactId>
   <name>Java Chassis::Demo::CrossApp::Client</name>
diff --git a/demo/demo-crossapp/crossapp-server/pom.xml b/demo/demo-crossapp/crossapp-server/pom.xml
index b57e465..f99a352 100644
--- a/demo/demo-crossapp/crossapp-server/pom.xml
+++ b/demo/demo-crossapp/crossapp-server/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-crossapp</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>crossapp-server</artifactId>
   <name>Java Chassis::Demo::CrossApp::Server</name>
diff --git a/demo/demo-crossapp/pom.xml b/demo/demo-crossapp/pom.xml
index 9f19ba2..b28a65b 100644
--- a/demo/demo-crossapp/pom.xml
+++ b/demo/demo-crossapp/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-crossapp</artifactId>
   <name>Java Chassis::Demo::CrossApp</name>
diff --git a/demo/demo-cse-v1/consumer/pom.xml b/demo/demo-cse-v1/consumer/pom.xml
index dc32aa5..5ade2af 100644
--- a/demo/demo-cse-v1/consumer/pom.xml
+++ b/demo/demo-cse-v1/consumer/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v1</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v1-consumer</artifactId>
diff --git a/demo/demo-cse-v1/gateway/pom.xml b/demo/demo-cse-v1/gateway/pom.xml
index 372fbb3..c3c3b7f 100644
--- a/demo/demo-cse-v1/gateway/pom.xml
+++ b/demo/demo-cse-v1/gateway/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v1</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v1-gateway</artifactId>
diff --git a/demo/demo-cse-v1/pom.xml b/demo/demo-cse-v1/pom.xml
index 44f8d40..bc0a7b3 100644
--- a/demo/demo-cse-v1/pom.xml
+++ b/demo/demo-cse-v1/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-cse-v1</artifactId>
   <name>Java Chassis::Demo::CSE-V1</name>
diff --git a/demo/demo-cse-v1/provider-canary/pom.xml b/demo/demo-cse-v1/provider-canary/pom.xml
index 5d0fe16..bcdb43c 100644
--- a/demo/demo-cse-v1/provider-canary/pom.xml
+++ b/demo/demo-cse-v1/provider-canary/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v1</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v1-provider-canary</artifactId>
diff --git a/demo/demo-cse-v1/provider/pom.xml b/demo/demo-cse-v1/provider/pom.xml
index 2729675..cb168fd 100644
--- a/demo/demo-cse-v1/provider/pom.xml
+++ b/demo/demo-cse-v1/provider/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v1</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v1-provider</artifactId>
diff --git a/demo/demo-cse-v1/test-client/pom.xml b/demo/demo-cse-v1/test-client/pom.xml
index 90d292b..b29be03 100644
--- a/demo/demo-cse-v1/test-client/pom.xml
+++ b/demo/demo-cse-v1/test-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v1</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v1-test-client</artifactId>
diff --git a/demo/demo-cse-v2/consumer/pom.xml b/demo/demo-cse-v2/consumer/pom.xml
index 0ccf9e6..432015d 100644
--- a/demo/demo-cse-v2/consumer/pom.xml
+++ b/demo/demo-cse-v2/consumer/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v2</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v2-consumer</artifactId>
diff --git a/demo/demo-cse-v2/gateway/pom.xml b/demo/demo-cse-v2/gateway/pom.xml
index 2c6fce7..c63fb70 100644
--- a/demo/demo-cse-v2/gateway/pom.xml
+++ b/demo/demo-cse-v2/gateway/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v2</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v2-gateway</artifactId>
diff --git a/demo/demo-cse-v2/pom.xml b/demo/demo-cse-v2/pom.xml
index f10c6c6..6a5ebb4 100644
--- a/demo/demo-cse-v2/pom.xml
+++ b/demo/demo-cse-v2/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-cse-v2</artifactId>
   <name>Java Chassis::Demo::CSE-V2</name>
diff --git a/demo/demo-cse-v2/provider/pom.xml b/demo/demo-cse-v2/provider/pom.xml
index 4b4c6e4..b2ed3c0 100644
--- a/demo/demo-cse-v2/provider/pom.xml
+++ b/demo/demo-cse-v2/provider/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v2</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v2-provider</artifactId>
diff --git a/demo/demo-cse-v2/test-client/pom.xml b/demo/demo-cse-v2/test-client/pom.xml
index 0b88812..89ab1b0 100644
--- a/demo/demo-cse-v2/test-client/pom.xml
+++ b/demo/demo-cse-v2/test-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-cse-v2</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>cse-v2-test-client</artifactId>
diff --git a/demo/demo-edge/authentication/pom.xml b/demo/demo-edge/authentication/pom.xml
index 9ec8163..001c0ea 100644
--- a/demo/demo-edge/authentication/pom.xml
+++ b/demo/demo-edge/authentication/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>authentication</artifactId>
   <name>Java Chassis::Demo::Edge::Authentication</name>
diff --git a/demo/demo-edge/business-1-1-0/pom.xml b/demo/demo-edge/business-1-1-0/pom.xml
index ce36927..fb154c9 100644
--- a/demo/demo-edge/business-1-1-0/pom.xml
+++ b/demo/demo-edge/business-1-1-0/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>business-1-1-0</artifactId>
   <name>Java Chassis::Demo::Edge::Business 1.1.0</name>
diff --git a/demo/demo-edge/business-1.0.0/pom.xml b/demo/demo-edge/business-1.0.0/pom.xml
index 8e1c5e7..b916be1 100644
--- a/demo/demo-edge/business-1.0.0/pom.xml
+++ b/demo/demo-edge/business-1.0.0/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>business-1-0-0</artifactId>
   <name>Java Chassis::Demo::Edge::Business 1.0.0</name>
diff --git a/demo/demo-edge/business-2.0.0/pom.xml b/demo/demo-edge/business-2.0.0/pom.xml
index 34b4f9b..6e0ac2b 100644
--- a/demo/demo-edge/business-2.0.0/pom.xml
+++ b/demo/demo-edge/business-2.0.0/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>business-2-0-0</artifactId>
   <name>Java Chassis::Demo::Edge::Business 2.0.0</name>
diff --git a/demo/demo-edge/consumer/pom.xml b/demo/demo-edge/consumer/pom.xml
index e018845..cf32e00 100644
--- a/demo/demo-edge/consumer/pom.xml
+++ b/demo/demo-edge/consumer/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>consumer</artifactId>
   <name>Java Chassis::Demo::Edge::Consumer</name>
diff --git a/demo/demo-edge/edge-service/pom.xml b/demo/demo-edge/edge-service/pom.xml
index 661eb89..dc9a2b1 100644
--- a/demo/demo-edge/edge-service/pom.xml
+++ b/demo/demo-edge/edge-service/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>edge-service</artifactId>
   <name>Java Chassis::Demo::Edge::Service</name>
diff --git a/demo/demo-edge/model/pom.xml b/demo/demo-edge/model/pom.xml
index 7d791be..b8f2fe6 100644
--- a/demo/demo-edge/model/pom.xml
+++ b/demo/demo-edge/model/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>model</artifactId>
   <name>Java Chassis::Demo::Edge::Model</name>
diff --git a/demo/demo-edge/pom.xml b/demo/demo-edge/pom.xml
index e428e93..20ab2af 100644
--- a/demo/demo-edge/pom.xml
+++ b/demo/demo-edge/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-edge</artifactId>
   <name>Java Chassis::Demo::Edge</name>
diff --git a/demo/demo-filter/filter-client/pom.xml b/demo/demo-filter/filter-client/pom.xml
index 75d26c5..c8e16f4 100644
--- a/demo/demo-filter/filter-client/pom.xml
+++ b/demo/demo-filter/filter-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-filter</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>filter-client</artifactId>
   <name>Java Chassis::Demo::Filter::Client</name>
diff --git a/demo/demo-filter/filter-server/pom.xml b/demo/demo-filter/filter-server/pom.xml
index 21eba21..e1ab8bb 100644
--- a/demo/demo-filter/filter-server/pom.xml
+++ b/demo/demo-filter/filter-server/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-filter</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>filter-server</artifactId>
   <name>Java Chassis::Demo::Filter::Server</name>
diff --git a/demo/demo-filter/pom.xml b/demo/demo-filter/pom.xml
index dfb6663..dbe769f 100644
--- a/demo/demo-filter/pom.xml
+++ b/demo/demo-filter/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-filter</artifactId>
   <name>Java Chassis::Demo::Filter</name>
diff --git a/demo/demo-jaxrs/jaxrs-client/pom.xml b/demo/demo-jaxrs/jaxrs-client/pom.xml
index 55fa23c..717fb59 100644
--- a/demo/demo-jaxrs/jaxrs-client/pom.xml
+++ b/demo/demo-jaxrs/jaxrs-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-jaxrs</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>jaxrs-client</artifactId>
   <name>Java Chassis::Demo::JAXRS::Client</name>
diff --git a/demo/demo-jaxrs/jaxrs-server/pom.xml b/demo/demo-jaxrs/jaxrs-server/pom.xml
index aa750db..f212221 100644
--- a/demo/demo-jaxrs/jaxrs-server/pom.xml
+++ b/demo/demo-jaxrs/jaxrs-server/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-jaxrs</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>jaxrs-server</artifactId>
   <name>Java Chassis::Demo::JAXRS::Server</name>
diff --git a/demo/demo-jaxrs/pom.xml b/demo/demo-jaxrs/pom.xml
index 798d231..a46aa46 100644
--- a/demo/demo-jaxrs/pom.xml
+++ b/demo/demo-jaxrs/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-jaxrs</artifactId>
   <name>Java Chassis::Demo::JAXRS</name>
diff --git a/demo/demo-local-registry/demo-local-registry-client/pom.xml b/demo/demo-local-registry/demo-local-registry-client/pom.xml
index 3e8b513..ec50fc9 100644
--- a/demo/demo-local-registry/demo-local-registry-client/pom.xml
+++ b/demo/demo-local-registry/demo-local-registry-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-local-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-local-registry/demo-local-registry-server/pom.xml b/demo/demo-local-registry/demo-local-registry-server/pom.xml
index e1083ae..163cd56 100644
--- a/demo/demo-local-registry/demo-local-registry-server/pom.xml
+++ b/demo/demo-local-registry/demo-local-registry-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-local-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-local-registry/pom.xml b/demo/demo-local-registry/pom.xml
index 1279a06..f4a80f8 100644
--- a/demo/demo-local-registry/pom.xml
+++ b/demo/demo-local-registry/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-local-registry</artifactId>
   <name>Java Chassis::Demo::Local Registry</name>
diff --git a/demo/demo-multi-registries/demo-multi-registries-client/pom.xml b/demo/demo-multi-registries/demo-multi-registries-client/pom.xml
index 3f66e39..cc0a451 100644
--- a/demo/demo-multi-registries/demo-multi-registries-client/pom.xml
+++ b/demo/demo-multi-registries/demo-multi-registries-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multi-registries</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-multi-registries/demo-multi-registries-server/pom.xml b/demo/demo-multi-registries/demo-multi-registries-server/pom.xml
index 818afb6..f11e863 100644
--- a/demo/demo-multi-registries/demo-multi-registries-server/pom.xml
+++ b/demo/demo-multi-registries/demo-multi-registries-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multi-registries</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-multi-registries/pom.xml b/demo/demo-multi-registries/pom.xml
index 30c440e..5bdfc64 100644
--- a/demo/demo-multi-registries/pom.xml
+++ b/demo/demo-multi-registries/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-multi-registries</artifactId>
   <name>Java Chassis::Demo::Multi Registry</name>
diff --git a/demo/demo-multi-service-center/demo-multi-service-center-client/pom.xml b/demo/demo-multi-service-center/demo-multi-service-center-client/pom.xml
index 68fe06d..ec1c88f 100644
--- a/demo/demo-multi-service-center/demo-multi-service-center-client/pom.xml
+++ b/demo/demo-multi-service-center/demo-multi-service-center-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multi-service-center</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-multi-service-center/demo-multi-service-center-serverA/pom.xml b/demo/demo-multi-service-center/demo-multi-service-center-serverA/pom.xml
index fa8ae98..6c318f4 100644
--- a/demo/demo-multi-service-center/demo-multi-service-center-serverA/pom.xml
+++ b/demo/demo-multi-service-center/demo-multi-service-center-serverA/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multi-service-center</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-multi-service-center/demo-multi-service-center-serverB/pom.xml b/demo/demo-multi-service-center/demo-multi-service-center-serverB/pom.xml
index 757c7cf..6f20ade 100644
--- a/demo/demo-multi-service-center/demo-multi-service-center-serverB/pom.xml
+++ b/demo/demo-multi-service-center/demo-multi-service-center-serverB/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multi-service-center</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-multi-service-center/pom.xml b/demo/demo-multi-service-center/pom.xml
index a5e16e8..57747c2 100644
--- a/demo/demo-multi-service-center/pom.xml
+++ b/demo/demo-multi-service-center/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-multi-service-center</artifactId>
   <name>Java Chassis::Demo::Multi Service Centers</name>
diff --git a/demo/demo-multiple/a-client/pom.xml b/demo/demo-multiple/a-client/pom.xml
index 079b9e1..d8365b1 100644
--- a/demo/demo-multiple/a-client/pom.xml
+++ b/demo/demo-multiple/a-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>a-client</artifactId>
   <name>Java Chassis::Demo::Multiple::A client</name>
diff --git a/demo/demo-multiple/a-server/pom.xml b/demo/demo-multiple/a-server/pom.xml
index 13f3b35..80aac06 100644
--- a/demo/demo-multiple/a-server/pom.xml
+++ b/demo/demo-multiple/a-server/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>a-server</artifactId>
   <name>Java Chassis::Demo::Multiple::A server</name>
diff --git a/demo/demo-multiple/b-client/pom.xml b/demo/demo-multiple/b-client/pom.xml
index 743eb15..d7f42b0 100644
--- a/demo/demo-multiple/b-client/pom.xml
+++ b/demo/demo-multiple/b-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>b-client</artifactId>
   <name>Java Chassis::Demo::Multiple::B client</name>
diff --git a/demo/demo-multiple/b-server/pom.xml b/demo/demo-multiple/b-server/pom.xml
index b6830fa..04cfe4a 100644
--- a/demo/demo-multiple/b-server/pom.xml
+++ b/demo/demo-multiple/b-server/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>b-server</artifactId>
diff --git a/demo/demo-multiple/multiple-client/pom.xml b/demo/demo-multiple/multiple-client/pom.xml
index c0ac711..790a366 100644
--- a/demo/demo-multiple/multiple-client/pom.xml
+++ b/demo/demo-multiple/multiple-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>multiple-client</artifactId>
   <name>Java Chassis::Demo::Multiple::Client</name>
diff --git a/demo/demo-multiple/multiple-server/pom.xml b/demo/demo-multiple/multiple-server/pom.xml
index 81699d3..a4f3281 100644
--- a/demo/demo-multiple/multiple-server/pom.xml
+++ b/demo/demo-multiple/multiple-server/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-multiple</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>multiple-server</artifactId>
   <name>Java Chassis::Demo::Multiple::Server</name>
diff --git a/demo/demo-multiple/pom.xml b/demo/demo-multiple/pom.xml
index 939508b..3bce0d0 100644
--- a/demo/demo-multiple/pom.xml
+++ b/demo/demo-multiple/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-multiple</artifactId>
   <name>Java Chassis::Demo::Multiple</name>
diff --git a/demo/demo-pojo/pojo-client/pom.xml b/demo/demo-pojo/pojo-client/pom.xml
index b2d48b6..7db3bc6 100644
--- a/demo/demo-pojo/pojo-client/pom.xml
+++ b/demo/demo-pojo/pojo-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-pojo</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>pojo-client</artifactId>
   <name>Java Chassis::Demo::POJO::Client</name>
diff --git a/demo/demo-pojo/pojo-server/pom.xml b/demo/demo-pojo/pojo-server/pom.xml
index d0ca348..537774b 100644
--- a/demo/demo-pojo/pojo-server/pom.xml
+++ b/demo/demo-pojo/pojo-server/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-pojo</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>pojo-server</artifactId>
   <name>Java Chassis::Demo::POJO::Server</name>
diff --git a/demo/demo-pojo/pom.xml b/demo/demo-pojo/pom.xml
index b8af170..6f49260 100644
--- a/demo/demo-pojo/pom.xml
+++ b/demo/demo-pojo/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-pojo</artifactId>
   <name>Java Chassis::Demo::POJO</name>
diff --git a/demo/demo-register-url-prefix/demo-register-url-prefix-client/pom.xml b/demo/demo-register-url-prefix/demo-register-url-prefix-client/pom.xml
index b729938..3b90e28 100644
--- a/demo/demo-register-url-prefix/demo-register-url-prefix-client/pom.xml
+++ b/demo/demo-register-url-prefix/demo-register-url-prefix-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-register-url-prefix</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-register-url-prefix/demo-register-url-prefix-server/pom.xml b/demo/demo-register-url-prefix/demo-register-url-prefix-server/pom.xml
index 0504421..75faa6f 100644
--- a/demo/demo-register-url-prefix/demo-register-url-prefix-server/pom.xml
+++ b/demo/demo-register-url-prefix/demo-register-url-prefix-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-register-url-prefix</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-register-url-prefix/pom.xml b/demo/demo-register-url-prefix/pom.xml
index 32a2df2..e422857 100644
--- a/demo/demo-register-url-prefix/pom.xml
+++ b/demo/demo-register-url-prefix/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-register-url-prefix</artifactId>
   <name>Java Chassis::Demo::Spring Boot::Register URL Prefix</name>
diff --git a/demo/demo-schema/pom.xml b/demo/demo-schema/pom.xml
index 733b545..808f487 100644
--- a/demo/demo-schema/pom.xml
+++ b/demo/demo-schema/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-schema</artifactId>
   <name>Java Chassis::Demo::Schema</name>
diff --git a/demo/demo-signature/pom.xml b/demo/demo-signature/pom.xml
index ef523e0..d02f9ff 100644
--- a/demo/demo-signature/pom.xml
+++ b/demo/demo-signature/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-signature</artifactId>
   <name>Java Chassis::Demo::Signature</name>
diff --git a/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-client/pom.xml b/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-client/pom.xml
index a8bf281..c78fe20 100644
--- a/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-client/pom.xml
+++ b/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-server/pom.xml b/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-server/pom.xml
index 82a4aba..fbf277e 100644
--- a/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-server/pom.xml
+++ b/demo/demo-spring-boot-provider/demo-spring-boot-jaxrs-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <properties>
     <demo.main>org.apache.servicecomb.springboot.jaxrs.server.JaxrsServer</demo.main>
diff --git a/demo/demo-spring-boot-provider/pom.xml b/demo/demo-spring-boot-provider/pom.xml
index 5ba5382..92f2077 100644
--- a/demo/demo-spring-boot-provider/pom.xml
+++ b/demo/demo-spring-boot-provider/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-spring-boot</artifactId>
   <name>Java Chassis::Demo::Spring Boot</name>
diff --git a/demo/demo-spring-boot-transport/demo-spring-boot-pojo-client/pom.xml b/demo/demo-spring-boot-transport/demo-spring-boot-pojo-client/pom.xml
index 98cabc4..f38ac55 100644
--- a/demo/demo-spring-boot-transport/demo-spring-boot-pojo-client/pom.xml
+++ b/demo/demo-spring-boot-transport/demo-spring-boot-pojo-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot-transport</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-spring-boot-transport/demo-spring-boot-pojo-server/pom.xml b/demo/demo-spring-boot-transport/demo-spring-boot-pojo-server/pom.xml
index c275200..16fd7ba 100644
--- a/demo/demo-spring-boot-transport/demo-spring-boot-pojo-server/pom.xml
+++ b/demo/demo-spring-boot-transport/demo-spring-boot-pojo-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot-transport</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-client/pom.xml b/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-client/pom.xml
index 1833dda..6de435e 100644
--- a/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-client/pom.xml
+++ b/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-client/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot-transport</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-server/pom.xml b/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-server/pom.xml
index 5bb0e65..600e59f 100644
--- a/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-server/pom.xml
+++ b/demo/demo-spring-boot-transport/demo-spring-boot-springmvc-server/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-spring-boot-transport</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <dependencies>
     <dependency>
diff --git a/demo/demo-spring-boot-transport/pom.xml b/demo/demo-spring-boot-transport/pom.xml
index 185109e..73ac8af 100644
--- a/demo/demo-spring-boot-transport/pom.xml
+++ b/demo/demo-spring-boot-transport/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-spring-boot-transport</artifactId>
   <name>Java Chassis::Demo::Spring Boot::Transport</name>
diff --git a/demo/demo-springmvc/pom.xml b/demo/demo-springmvc/pom.xml
index c6c73c5..55a6c0e 100644
--- a/demo/demo-springmvc/pom.xml
+++ b/demo/demo-springmvc/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-springmvc</artifactId>
   <name>Java Chassis::Demo::Spring MVC</name>
diff --git a/demo/demo-springmvc/springmvc-client/pom.xml b/demo/demo-springmvc/springmvc-client/pom.xml
index 415b22a..e1c884a 100644
--- a/demo/demo-springmvc/springmvc-client/pom.xml
+++ b/demo/demo-springmvc/springmvc-client/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-springmvc</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>springmvc-client</artifactId>
   <name>Java Chassis::Demo::Spring MVC::Client</name>
diff --git a/demo/demo-springmvc/springmvc-server/pom.xml b/demo/demo-springmvc/springmvc-server/pom.xml
index ec84209..c539a51 100644
--- a/demo/demo-springmvc/springmvc-server/pom.xml
+++ b/demo/demo-springmvc/springmvc-server/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-springmvc</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>springmvc-server</artifactId>
   <name>Java Chassis::Demo::Spring MVC::Server</name>
diff --git a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-client/pom.xml b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-client/pom.xml
index 1498039..334f755 100644
--- a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-client/pom.xml
+++ b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-client/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-zeroconfig-schemadiscovery-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-edge/pom.xml b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-edge/pom.xml
index 2c37b82..9d1257d 100644
--- a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-edge/pom.xml
+++ b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-edge/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-zeroconfig-schemadiscovery-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-server/pom.xml b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-server/pom.xml
index 87f11a2..eeb009b 100644
--- a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-server/pom.xml
+++ b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-server/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-zeroconfig-schemadiscovery-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-tests/pom.xml b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-tests/pom.xml
index 80035b0..faec0bf 100644
--- a/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-tests/pom.xml
+++ b/demo/demo-zeroconfig-schemadiscovery-registry/demo-zeroconfig-schemadiscovery-registry-tests/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-zeroconfig-schemadiscovery-registry</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <properties>
diff --git a/demo/demo-zeroconfig-schemadiscovery-registry/pom.xml b/demo/demo-zeroconfig-schemadiscovery-registry/pom.xml
index 3b1a621..955eaf5 100644
--- a/demo/demo-zeroconfig-schemadiscovery-registry/pom.xml
+++ b/demo/demo-zeroconfig-schemadiscovery-registry/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb.demo</groupId>
     <artifactId>demo-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>demo-zeroconfig-schemadiscovery-registry</artifactId>
   <name>Java Chassis::Demo::ZeroConfig-SchemaDiscovery Registry</name>
diff --git a/demo/docker-build-config/pom.xml b/demo/docker-build-config/pom.xml
index 9750546..f10360c 100644
--- a/demo/docker-build-config/pom.xml
+++ b/demo/docker-build-config/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>demo-parent</artifactId>
     <groupId>org.apache.servicecomb.demo</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/demo/docker-run-config-edge/pom.xml b/demo/docker-run-config-edge/pom.xml
index 0f7fdd2..9ea8067 100644
--- a/demo/docker-run-config-edge/pom.xml
+++ b/demo/docker-run-config-edge/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>demo-parent</artifactId>
     <groupId>org.apache.servicecomb.demo</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/demo/docker-run-config-local/pom.xml b/demo/docker-run-config-local/pom.xml
index d5d35df..0380351 100644
--- a/demo/docker-run-config-local/pom.xml
+++ b/demo/docker-run-config-local/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>demo-parent</artifactId>
     <groupId>org.apache.servicecomb.demo</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/demo/docker-run-config/pom.xml b/demo/docker-run-config/pom.xml
index 5c9fb8b..d49c803 100644
--- a/demo/docker-run-config/pom.xml
+++ b/demo/docker-run-config/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>demo-parent</artifactId>
     <groupId>org.apache.servicecomb.demo</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/demo/pom.xml b/demo/pom.xml
index 12d7a48..84b7991 100644
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <groupId>org.apache.servicecomb.demo</groupId>
diff --git a/dependencies/bom/pom.xml b/dependencies/bom/pom.xml
index 46c184c..7c9026a 100644
--- a/dependencies/bom/pom.xml
+++ b/dependencies/bom/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-dependencies-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>java-chassis-bom</artifactId>
diff --git a/dependencies/default/pom.xml b/dependencies/default/pom.xml
index abc3594..845de9a 100644
--- a/dependencies/default/pom.xml
+++ b/dependencies/default/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-dependencies-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>java-chassis-dependencies</artifactId>
diff --git a/dependencies/pom.xml b/dependencies/pom.xml
index a2b0053..61c8950 100644
--- a/dependencies/pom.xml
+++ b/dependencies/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>java-chassis-dependencies-parent</artifactId>
diff --git a/deployment/pom.xml b/deployment/pom.xml
index deb3b05..0c63ae6 100644
--- a/deployment/pom.xml
+++ b/deployment/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 12a8309..d7eae7b 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>apache-servicecomb-java-chassis-distribution</artifactId>
diff --git a/dynamic-config/config-apollo/pom.xml b/dynamic-config/config-apollo/pom.xml
index 316eab0..36696a9 100644
--- a/dynamic-config/config-apollo/pom.xml
+++ b/dynamic-config/config-apollo/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>dynamic-config</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>config-apollo</artifactId>
diff --git a/dynamic-config/config-cc/pom.xml b/dynamic-config/config-cc/pom.xml
index e9306fd..df522b2 100644
--- a/dynamic-config/config-cc/pom.xml
+++ b/dynamic-config/config-cc/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>dynamic-config</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/dynamic-config/config-kie/pom.xml b/dynamic-config/config-kie/pom.xml
index 939eb9f..5b01554 100644
--- a/dynamic-config/config-kie/pom.xml
+++ b/dynamic-config/config-kie/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>dynamic-config</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/dynamic-config/config-nacos/pom.xml b/dynamic-config/config-nacos/pom.xml
index e26ba61..4d338a5 100644
--- a/dynamic-config/config-nacos/pom.xml
+++ b/dynamic-config/config-nacos/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>dynamic-config</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>config-nacos</artifactId>
diff --git a/dynamic-config/pom.xml b/dynamic-config/pom.xml
index 75ab76f..9f6ebec 100644
--- a/dynamic-config/pom.xml
+++ b/dynamic-config/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/edge/edge-core/pom.xml b/edge/edge-core/pom.xml
index ff33c36..56466ab 100644
--- a/edge/edge-core/pom.xml
+++ b/edge/edge-core/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>edge</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>edge-core</artifactId>
   <name>Java Chassis::Edge::Core</name>
diff --git a/edge/pom.xml b/edge/pom.xml
index a1965b6..1f4a3eb 100644
--- a/edge/pom.xml
+++ b/edge/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>edge</artifactId>
diff --git a/foundations/foundation-common/pom.xml b/foundations/foundation-common/pom.xml
index 9139c33..96c8b24 100644
--- a/foundations/foundation-common/pom.xml
+++ b/foundations/foundation-common/pom.xml
@@ -20,7 +20,7 @@
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <artifactId>foundations</artifactId>
   </parent>
   <artifactId>foundation-common</artifactId>
diff --git a/foundations/foundation-config/pom.xml b/foundations/foundation-config/pom.xml
index 760356d..10a7497 100644
--- a/foundations/foundation-config/pom.xml
+++ b/foundations/foundation-config/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>foundations</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/foundations/foundation-metrics/pom.xml b/foundations/foundation-metrics/pom.xml
index df62abc..38bed88 100644
--- a/foundations/foundation-metrics/pom.xml
+++ b/foundations/foundation-metrics/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>foundations</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>foundation-metrics</artifactId>
   <name>Java Chassis::Foundations::Metrics</name>
diff --git a/foundations/foundation-protobuf/pom.xml b/foundations/foundation-protobuf/pom.xml
index 898a579..3f02732 100644
--- a/foundations/foundation-protobuf/pom.xml
+++ b/foundations/foundation-protobuf/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>foundations</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/foundations/foundation-registry/pom.xml b/foundations/foundation-registry/pom.xml
index 180bac9..c2fe3d9 100644
--- a/foundations/foundation-registry/pom.xml
+++ b/foundations/foundation-registry/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>foundations</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/foundations/foundation-spi/pom.xml b/foundations/foundation-spi/pom.xml
index 5614446..ce5df4c 100644
--- a/foundations/foundation-spi/pom.xml
+++ b/foundations/foundation-spi/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>foundations</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>foundation-spi</artifactId>
   <name>Java Chassis::Foundations::SSL</name>
diff --git a/foundations/foundation-ssl/pom.xml b/foundations/foundation-ssl/pom.xml
index 91ac9d5..10354a8 100644
--- a/foundations/foundation-ssl/pom.xml
+++ b/foundations/foundation-ssl/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>foundations</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>foundation-ssl</artifactId>
   <name>Java Chassis::Foundations::SSL</name>
diff --git a/foundations/foundation-test-scaffolding/pom.xml b/foundations/foundation-test-scaffolding/pom.xml
index aad1575..729a7c4 100644
--- a/foundations/foundation-test-scaffolding/pom.xml
+++ b/foundations/foundation-test-scaffolding/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>foundations</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>foundation-test-scaffolding</artifactId>
   <name>Java Chassis::Foundations::Test Scaffolding</name>
diff --git a/foundations/foundation-vertx/pom.xml b/foundations/foundation-vertx/pom.xml
index a1dafd1..274809f 100644
--- a/foundations/foundation-vertx/pom.xml
+++ b/foundations/foundation-vertx/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>foundations</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>foundation-vertx</artifactId>
   <name>Java Chassis::Foundations::Vertx</name>
diff --git a/foundations/pom.xml b/foundations/pom.xml
index b66de34..fb6a1dd 100644
--- a/foundations/pom.xml
+++ b/foundations/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>foundations</artifactId>
diff --git a/governance/pom.xml b/governance/pom.xml
index 4092a95..dae0fdb 100644
--- a/governance/pom.xml
+++ b/governance/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/handlers/handler-bizkeeper/pom.xml b/handlers/handler-bizkeeper/pom.xml
index 622c584..07749e4 100644
--- a/handlers/handler-bizkeeper/pom.xml
+++ b/handlers/handler-bizkeeper/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>handler-bizkeeper</artifactId>
diff --git a/handlers/handler-fault-injection/pom.xml b/handlers/handler-fault-injection/pom.xml
index a388a0b..cedbacd 100755
--- a/handlers/handler-fault-injection/pom.xml
+++ b/handlers/handler-fault-injection/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>handler-fault-injection</artifactId>
   <name>Java Chassis::Handlers::Fault Injection</name>
diff --git a/handlers/handler-flowcontrol-qps/pom.xml b/handlers/handler-flowcontrol-qps/pom.xml
index 603c92c..a336356 100644
--- a/handlers/handler-flowcontrol-qps/pom.xml
+++ b/handlers/handler-flowcontrol-qps/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>handler-flowcontrol-qps</artifactId>
   <name>Java Chassis::Handlers::Flow Control QPS</name>
diff --git a/handlers/handler-governance/pom.xml b/handlers/handler-governance/pom.xml
index 849a652..1b9f079 100644
--- a/handlers/handler-governance/pom.xml
+++ b/handlers/handler-governance/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>handler-governance</artifactId>
diff --git a/handlers/handler-loadbalance/pom.xml b/handlers/handler-loadbalance/pom.xml
index 4507180..911c282 100644
--- a/handlers/handler-loadbalance/pom.xml
+++ b/handlers/handler-loadbalance/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>handler-loadbalance</artifactId>
diff --git a/handlers/handler-publickey-auth/pom.xml b/handlers/handler-publickey-auth/pom.xml
index fcedce9..25dd857 100644
--- a/handlers/handler-publickey-auth/pom.xml
+++ b/handlers/handler-publickey-auth/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>handlers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>handler-publickey-auth</artifactId>
diff --git a/handlers/handler-router/pom.xml b/handlers/handler-router/pom.xml
index 806b2f7..2170208 100644
--- a/handlers/handler-router/pom.xml
+++ b/handlers/handler-router/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>handlers</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/handlers/handler-tracing-zipkin/pom.xml b/handlers/handler-tracing-zipkin/pom.xml
index 5ebf71c..4cf58af 100644
--- a/handlers/handler-tracing-zipkin/pom.xml
+++ b/handlers/handler-tracing-zipkin/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>handlers</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/handlers/pom.xml b/handlers/pom.xml
index e3c26f6..099e3a6 100644
--- a/handlers/pom.xml
+++ b/handlers/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/huawei-cloud/darklaunch/pom.xml b/huawei-cloud/darklaunch/pom.xml
index cab5aa2..e26a3c2 100644
--- a/huawei-cloud/darklaunch/pom.xml
+++ b/huawei-cloud/darklaunch/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>huawei-cloud</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/huawei-cloud/dashboard/pom.xml b/huawei-cloud/dashboard/pom.xml
index 0bd9c96..d6a324d 100644
--- a/huawei-cloud/dashboard/pom.xml
+++ b/huawei-cloud/dashboard/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>huawei-cloud</artifactId>
         <groupId>org.apache.servicecomb</groupId>
-        <version>${revision}</version>
+        <version>2.8.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/huawei-cloud/environment/pom.xml b/huawei-cloud/environment/pom.xml
index 5805845..112a28b 100644
--- a/huawei-cloud/environment/pom.xml
+++ b/huawei-cloud/environment/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>huawei-cloud</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>servicestage-environment</artifactId>
diff --git a/huawei-cloud/pom.xml b/huawei-cloud/pom.xml
index 2636e58..e66a53b 100644
--- a/huawei-cloud/pom.xml
+++ b/huawei-cloud/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
 
diff --git a/huawei-cloud/servicestage/pom.xml b/huawei-cloud/servicestage/pom.xml
index f0c6ed1..ad786bd 100644
--- a/huawei-cloud/servicestage/pom.xml
+++ b/huawei-cloud/servicestage/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>huawei-cloud</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>servicestage</artifactId>
diff --git a/inspector/pom.xml b/inspector/pom.xml
index 867552e..58e3d67 100644
--- a/inspector/pom.xml
+++ b/inspector/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/integration-tests/dynamic-config-tests/pom.xml b/integration-tests/dynamic-config-tests/pom.xml
index cf39259..be61023 100644
--- a/integration-tests/dynamic-config-tests/pom.xml
+++ b/integration-tests/dynamic-config-tests/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/it-common/pom.xml b/integration-tests/it-common/pom.xml
index 434a57f..33d9e6d 100644
--- a/integration-tests/it-common/pom.xml
+++ b/integration-tests/it-common/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/it-consumer/pom.xml b/integration-tests/it-consumer/pom.xml
index 8e678d8..a7c97a1 100644
--- a/integration-tests/it-consumer/pom.xml
+++ b/integration-tests/it-consumer/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/it-consumer/src/main/java/org/apache/servicecomb/it/deploy/Deploys.java b/integration-tests/it-consumer/src/main/java/org/apache/servicecomb/it/deploy/Deploys.java
index 33f4ab6..607b932 100644
--- a/integration-tests/it-consumer/src/main/java/org/apache/servicecomb/it/deploy/Deploys.java
+++ b/integration-tests/it-consumer/src/main/java/org/apache/servicecomb/it/deploy/Deploys.java
@@ -17,12 +17,14 @@
 package org.apache.servicecomb.it.deploy;
 
 import java.io.File;
+import java.io.FileReader;
 import java.io.IOException;
 import java.net.URL;
 
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.SystemUtils;
-import org.apache.servicecomb.core.SCBEngine;
+import org.apache.maven.model.Model;
+import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -101,20 +103,31 @@
     initSpringBoot2ServletProducer();
   }
 
-  private void initPomVersion() {
+  private void initPomVersion() throws Throwable {
     // already set manually
     if (pomVersion != null) {
       return;
     }
 
     // already package to jar
-    pomVersion = SCBEngine.class.getPackage().getImplementationVersion();
+    pomVersion = Deploys.class.getPackage().getImplementationVersion();
     if (pomVersion != null) {
       return;
     }
 
-    // read environment
-    pomVersion = System.getenv("revision");
+    // run in ide
+    MavenXpp3Reader reader = new MavenXpp3Reader();
+    Model model = reader.read(new FileReader("pom.xml"));
+    pomVersion = model.getVersion();
+    if (pomVersion != null) {
+      return;
+    }
+
+    if (model.getParent() == null) {
+      throw new IllegalStateException("can not find pom ServiceComb version");
+    }
+
+    pomVersion = model.getParent().getVersion();
     if (pomVersion != null) {
       return;
     }
@@ -208,9 +221,9 @@
     URL urlTrust = Thread.currentThread().getContextClassLoader().getResource("certificates/trust.jks");
     if (urlServer != null && urlTrust != null) {
       definition.appendArgs(new String[] {"-Dservicecomb.rest.address=0.0.0.0:0?sslEnabled=true&protocol=http2",
-          "-Dservicecomb.highway.address=0.0.0.0:0?sslEnabled=true",
-          "-Dserver.p12=" + urlServer.getPath(),
-          "-Dtrust.jks=" + urlTrust.getPath()
+              "-Dservicecomb.highway.address=0.0.0.0:0?sslEnabled=true",
+              "-Dserver.p12=" + urlServer.getPath(),
+              "-Dtrust.jks=" + urlTrust.getPath()
       });
     }
     definition.setAppId("integration-test");
diff --git a/integration-tests/it-edge/pom.xml b/integration-tests/it-edge/pom.xml
index 691d912..4dea983 100644
--- a/integration-tests/it-edge/pom.xml
+++ b/integration-tests/it-edge/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/it-producer-deploy-springboot2-servlet/pom.xml b/integration-tests/it-producer-deploy-springboot2-servlet/pom.xml
index 7484861..9987ed5 100644
--- a/integration-tests/it-producer-deploy-springboot2-servlet/pom.xml
+++ b/integration-tests/it-producer-deploy-springboot2-servlet/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>it-producer-deploy-springboot2-servlet</artifactId>
@@ -33,7 +33,7 @@
       <dependency>
         <groupId>org.apache.servicecomb</groupId>
         <artifactId>java-chassis-dependencies</artifactId>
-        <version>${revision}</version>
+        <version>2.8.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -44,7 +44,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>it-producer</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
     </dependency>
     <dependency>
       <groupId>org.apache.servicecomb</groupId>
diff --git a/integration-tests/it-producer-deploy-springboot2-standalone/pom.xml b/integration-tests/it-producer-deploy-springboot2-standalone/pom.xml
index 3bb1710..c28d3d6 100644
--- a/integration-tests/it-producer-deploy-springboot2-standalone/pom.xml
+++ b/integration-tests/it-producer-deploy-springboot2-standalone/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>it-producer-deploy-springboot2-standalone</artifactId>
diff --git a/integration-tests/it-producer/pom.xml b/integration-tests/it-producer/pom.xml
index 95f4c0b..3256747 100644
--- a/integration-tests/it-producer/pom.xml
+++ b/integration-tests/it-producer/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/jaxrs-tests/pom.xml b/integration-tests/jaxrs-tests/pom.xml
index a2e7409..8781ddf 100644
--- a/integration-tests/jaxrs-tests/pom.xml
+++ b/integration-tests/jaxrs-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/pojo-test/pom.xml b/integration-tests/pojo-test/pom.xml
index eb3e3af..6dc56dd 100644
--- a/integration-tests/pojo-test/pom.xml
+++ b/integration-tests/pojo-test/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/pom.xml b/integration-tests/pom.xml
index fc4ec9b..b021b29 100644
--- a/integration-tests/pom.xml
+++ b/integration-tests/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/integration-tests/spring-jaxrs-tests/pom.xml b/integration-tests/spring-jaxrs-tests/pom.xml
index ab9f658..cc55e8e 100644
--- a/integration-tests/spring-jaxrs-tests/pom.xml
+++ b/integration-tests/spring-jaxrs-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>jaxrs-tests</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
       <type>test-jar</type>
     </dependency>
     <dependency>
diff --git a/integration-tests/spring-pojo-connection-limit-test/pom.xml b/integration-tests/spring-pojo-connection-limit-test/pom.xml
index 3e0399a..a9293ce 100644
--- a/integration-tests/spring-pojo-connection-limit-test/pom.xml
+++ b/integration-tests/spring-pojo-connection-limit-test/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/spring-pojo-tests/pom.xml b/integration-tests/spring-pojo-tests/pom.xml
index bcc9486..dfb5a4a 100644
--- a/integration-tests/spring-pojo-tests/pom.xml
+++ b/integration-tests/spring-pojo-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/springmvc-tests/common/pom.xml b/integration-tests/springmvc-tests/common/pom.xml
index e9bc2a4..7d811db 100644
--- a/integration-tests/springmvc-tests/common/pom.xml
+++ b/integration-tests/springmvc-tests/common/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/springmvc-tests/common/src/test/java/org/apache/servicecomb/demo/springmvc/tests/SpringMvcIntegrationTestBase.java b/integration-tests/springmvc-tests/common/src/test/java/org/apache/servicecomb/demo/springmvc/tests/SpringMvcIntegrationTestBase.java
index 741e7b2..7048add 100644
--- a/integration-tests/springmvc-tests/common/src/test/java/org/apache/servicecomb/demo/springmvc/tests/SpringMvcIntegrationTestBase.java
+++ b/integration-tests/springmvc-tests/common/src/test/java/org/apache/servicecomb/demo/springmvc/tests/SpringMvcIntegrationTestBase.java
@@ -49,9 +49,9 @@
 import org.apache.servicecomb.provider.springmvc.reference.async.CseAsyncRestTemplate;
 import org.hamcrest.MatcherAssert;
 import org.hamcrest.Matchers;
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.io.TempDir;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.core.io.FileSystemResource;
@@ -74,8 +74,6 @@
 @SuppressWarnings("deprecation")
 // TODO : upgrade to spring 5 will having warning's , we'll fix it later
 public class SpringMvcIntegrationTestBase {
-  private static String LINE_SEP = System.getProperty("line.separator");
-
   @TempDir
   public static Path folder;
 
@@ -229,8 +227,8 @@
 
   @Test
   public void ableToUploadFile() throws Exception {
-    String file1Content = "hello world" + LINE_SEP;
-    String file2Content = "bonjour" + LINE_SEP;
+    String file1Content = "hello world";
+    String file2Content = "bonjour";
     String username = "mike";
 
     MultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
diff --git a/integration-tests/springmvc-tests/connection-limit/pom.xml b/integration-tests/springmvc-tests/connection-limit/pom.xml
index a304ce2..3b747ad 100644
--- a/integration-tests/springmvc-tests/connection-limit/pom.xml
+++ b/integration-tests/springmvc-tests/connection-limit/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>springmvc-tests-common</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
       <type>test-jar</type>
     </dependency>
     <dependency>
diff --git a/integration-tests/springmvc-tests/general-with-springboot/pom.xml b/integration-tests/springmvc-tests/general-with-springboot/pom.xml
index 1e760cc..e0c7520 100644
--- a/integration-tests/springmvc-tests/general-with-springboot/pom.xml
+++ b/integration-tests/springmvc-tests/general-with-springboot/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/springmvc-tests/general/pom.xml b/integration-tests/springmvc-tests/general/pom.xml
index a841a52..0988e9c 100644
--- a/integration-tests/springmvc-tests/general/pom.xml
+++ b/integration-tests/springmvc-tests/general/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>springmvc-tests-common</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
       <type>test-jar</type>
     </dependency>
     <dependency>
diff --git a/integration-tests/springmvc-tests/pom.xml b/integration-tests/springmvc-tests/pom.xml
index 19fe524..ba5d48d 100644
--- a/integration-tests/springmvc-tests/pom.xml
+++ b/integration-tests/springmvc-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/springmvc-tests/simplified-mapping-with-springboot/pom.xml b/integration-tests/springmvc-tests/simplified-mapping-with-springboot/pom.xml
index 30ee0bc..da8301d 100644
--- a/integration-tests/springmvc-tests/simplified-mapping-with-springboot/pom.xml
+++ b/integration-tests/springmvc-tests/simplified-mapping-with-springboot/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>springmvc-tests-common</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
       <type>test-jar</type>
     </dependency>
     <dependency>
diff --git a/integration-tests/springmvc-tests/simplified-mapping/pom.xml b/integration-tests/springmvc-tests/simplified-mapping/pom.xml
index 26d8b38..de5044f 100644
--- a/integration-tests/springmvc-tests/simplified-mapping/pom.xml
+++ b/integration-tests/springmvc-tests/simplified-mapping/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>springmvc-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
@@ -33,7 +33,7 @@
     <dependency>
       <groupId>org.apache.servicecomb.tests</groupId>
       <artifactId>springmvc-tests-common</artifactId>
-      <version>${revision}</version>
+      <version>2.8.0</version>
       <type>test-jar</type>
     </dependency>
     <dependency>
diff --git a/integration-tests/test-common/pom.xml b/integration-tests/test-common/pom.xml
index 52e44b9..850e6e8 100644
--- a/integration-tests/test-common/pom.xml
+++ b/integration-tests/test-common/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/integration-tests/tracing-tests/pom.xml b/integration-tests/tracing-tests/pom.xml
index 7ac81b6..0506fc8 100644
--- a/integration-tests/tracing-tests/pom.xml
+++ b/integration-tests/tracing-tests/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>integration-tests</artifactId>
     <groupId>org.apache.servicecomb.tests</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/metrics/metrics-core/pom.xml b/metrics/metrics-core/pom.xml
index 6b9cd8c..c6856d1 100644
--- a/metrics/metrics-core/pom.xml
+++ b/metrics/metrics-core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>metrics</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/metrics/metrics-integration/metrics-prometheus/pom.xml b/metrics/metrics-integration/metrics-prometheus/pom.xml
index 49db9dd..5569a69 100644
--- a/metrics/metrics-integration/metrics-prometheus/pom.xml
+++ b/metrics/metrics-integration/metrics-prometheus/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>metrics-integration</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/metrics/metrics-integration/pom.xml b/metrics/metrics-integration/pom.xml
index 6940fb8..4c1ac64 100644
--- a/metrics/metrics-integration/pom.xml
+++ b/metrics/metrics-integration/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>metrics</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/metrics/pom.xml b/metrics/pom.xml
index 3d165c0..5204cc9 100644
--- a/metrics/pom.xml
+++ b/metrics/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
 
diff --git a/parents/default/pom.xml b/parents/default/pom.xml
index ca0a751..5cbfe30 100644
--- a/parents/default/pom.xml
+++ b/parents/default/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-dependencies</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../../dependencies/default</relativePath>
   </parent>
 
diff --git a/parents/pom.xml b/parents/pom.xml
index ae2c5d8..28eaa9a 100644
--- a/parents/pom.xml
+++ b/parents/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <artifactId>java-chassis-parents</artifactId>
diff --git a/pom.xml b/pom.xml
index 0d5a643..7edf547 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.servicecomb</groupId>
   <artifactId>java-chassis</artifactId>
-  <version>${revision}</version>
+  <version>2.8.0</version>
   <packaging>pom</packaging>
 
   <name>ServiceComb Java Chassis</name>
@@ -37,7 +37,6 @@
   <url>https://github.com/apache/servicecomb-java-chassis</url>
 
   <properties>
-    <revision>2.8.0</revision>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <java.version>1.8</java.version>
     <argLine>-Dfile.encoding=UTF-8</argLine>
diff --git a/providers/pom.xml b/providers/pom.xml
index 624c4d5..f11cad5 100644
--- a/providers/pom.xml
+++ b/providers/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>providers</artifactId>
diff --git a/providers/provider-jaxrs/pom.xml b/providers/provider-jaxrs/pom.xml
index 0feee91..818555e 100644
--- a/providers/provider-jaxrs/pom.xml
+++ b/providers/provider-jaxrs/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>providers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>provider-jaxrs</artifactId>
   <name>Java Chassis::Providers::JAXRS</name>
diff --git a/providers/provider-pojo/pom.xml b/providers/provider-pojo/pom.xml
index 68f6f67..fcccb13 100644
--- a/providers/provider-pojo/pom.xml
+++ b/providers/provider-pojo/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>providers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>provider-pojo</artifactId>
   <name>Java Chassis::Providers::POJO</name>
diff --git a/providers/provider-rest-common/pom.xml b/providers/provider-rest-common/pom.xml
index 2c11fc2..9bd31b9 100644
--- a/providers/provider-rest-common/pom.xml
+++ b/providers/provider-rest-common/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>providers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>provider-rest-common</artifactId>
   <name>Java Chassis::Providers::Rest Common</name>
diff --git a/providers/provider-springmvc/pom.xml b/providers/provider-springmvc/pom.xml
index 7be4268..3bbec15 100644
--- a/providers/provider-springmvc/pom.xml
+++ b/providers/provider-springmvc/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>providers</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>provider-springmvc</artifactId>
   <name>Java Chassis::Providers::Spring MVC</name>
diff --git a/service-registry/pom.xml b/service-registry/pom.xml
index 647d30a..36f9d61 100644
--- a/service-registry/pom.xml
+++ b/service-registry/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/service-registry/registry-lightweight/pom.xml b/service-registry/registry-lightweight/pom.xml
index ca0a1ee..ba0f939 100644
--- a/service-registry/registry-lightweight/pom.xml
+++ b/service-registry/registry-lightweight/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>service-registry-parent</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/service-registry/registry-local/pom.xml b/service-registry/registry-local/pom.xml
index 2902620..26217c8 100644
--- a/service-registry/registry-local/pom.xml
+++ b/service-registry/registry-local/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>service-registry-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/service-registry/registry-schema-discovery/pom.xml b/service-registry/registry-schema-discovery/pom.xml
index 07c95f6..0720f91 100644
--- a/service-registry/registry-schema-discovery/pom.xml
+++ b/service-registry/registry-schema-discovery/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>service-registry-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/service-registry/registry-service-center/pom.xml b/service-registry/registry-service-center/pom.xml
index e99179c..cac3a1c 100644
--- a/service-registry/registry-service-center/pom.xml
+++ b/service-registry/registry-service-center/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>service-registry-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/service-registry/registry-zero-config/pom.xml b/service-registry/registry-zero-config/pom.xml
index 0847d15..4f3cf14 100644
--- a/service-registry/registry-zero-config/pom.xml
+++ b/service-registry/registry-zero-config/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>service-registry-parent</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/solutions/pom.xml b/solutions/pom.xml
index 26b556d..e8f0e4c 100644
--- a/solutions/pom.xml
+++ b/solutions/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/solutions/solution-basic/pom.xml b/solutions/solution-basic/pom.xml
index cb6a5db..b3c3623 100644
--- a/solutions/solution-basic/pom.xml
+++ b/solutions/solution-basic/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>solutions</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-boot/pom.xml b/spring-boot/pom.xml
index c665fd5..4dc3a9e 100644
--- a/spring-boot/pom.xml
+++ b/spring-boot/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
 
diff --git a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-servlet/pom.xml b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-servlet/pom.xml
index 0d35fd7..c27f0b5 100644
--- a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-servlet/pom.xml
+++ b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-servlet/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>java-chassis-spring-boot-starters</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-standalone/pom.xml b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-standalone/pom.xml
index 7a5fefe..12f7ab1 100644
--- a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-standalone/pom.xml
+++ b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter-standalone/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>java-chassis-spring-boot-starters</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter/pom.xml b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter/pom.xml
index 95424ac..1c9fe4f 100644
--- a/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter/pom.xml
+++ b/spring-boot/spring-boot-starters/java-chassis-spring-boot-starter/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>java-chassis-spring-boot-starters</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-boot/spring-boot-starters/pom.xml b/spring-boot/spring-boot-starters/pom.xml
index a0c612f..3bb4e4e 100644
--- a/spring-boot/spring-boot-starters/pom.xml
+++ b/spring-boot/spring-boot-starters/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>java-chassis-spring-boot</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/swagger/pom.xml b/swagger/pom.xml
index e6d488c..013cc78 100644
--- a/swagger/pom.xml
+++ b/swagger/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>swagger</artifactId>
diff --git a/swagger/swagger-generator/generator-core/pom.xml b/swagger/swagger-generator/generator-core/pom.xml
index 340d819..f88b20e 100644
--- a/swagger/swagger-generator/generator-core/pom.xml
+++ b/swagger/swagger-generator/generator-core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-generator</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-generator-core</artifactId>
   <name>Java Chassis::Swagger::Generator::Core</name>
diff --git a/swagger/swagger-generator/generator-jaxrs/pom.xml b/swagger/swagger-generator/generator-jaxrs/pom.xml
index 179310f..2ca023a 100644
--- a/swagger/swagger-generator/generator-jaxrs/pom.xml
+++ b/swagger/swagger-generator/generator-jaxrs/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-generator</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-generator-jaxrs</artifactId>
   <name>Java Chassis::Swagger::Generator::Jaxrs</name>
diff --git a/swagger/swagger-generator/generator-spring-data/pom.xml b/swagger/swagger-generator/generator-spring-data/pom.xml
index 1025031..8fbcd74 100644
--- a/swagger/swagger-generator/generator-spring-data/pom.xml
+++ b/swagger/swagger-generator/generator-spring-data/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-generator</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/swagger/swagger-generator/generator-springmvc/pom.xml b/swagger/swagger-generator/generator-springmvc/pom.xml
index 59420a4..1a7ea45 100644
--- a/swagger/swagger-generator/generator-springmvc/pom.xml
+++ b/swagger/swagger-generator/generator-springmvc/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-generator</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-generator-springmvc</artifactId>
   <name>Java Chassis::Swagger::Generator::Spring MVC</name>
diff --git a/swagger/swagger-generator/pom.xml b/swagger/swagger-generator/pom.xml
index 05b047f..3c0e454 100644
--- a/swagger/swagger-generator/pom.xml
+++ b/swagger/swagger-generator/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-generator</artifactId>
   <name>Java Chassis::Swagger::Generator</name>
diff --git a/swagger/swagger-invocation/invocation-core/pom.xml b/swagger/swagger-invocation/invocation-core/pom.xml
index af1d11f..3219c28 100644
--- a/swagger/swagger-invocation/invocation-core/pom.xml
+++ b/swagger/swagger-invocation/invocation-core/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-invocation</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-invocation-core</artifactId>
   <name>Java Chassis::Swagger::Invocation::Core</name>
diff --git a/swagger/swagger-invocation/invocation-jaxrs/pom.xml b/swagger/swagger-invocation/invocation-jaxrs/pom.xml
index 295a6b5..fa67582 100644
--- a/swagger/swagger-invocation/invocation-jaxrs/pom.xml
+++ b/swagger/swagger-invocation/invocation-jaxrs/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-invocation</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-invocation-jaxrs</artifactId>
   <name>Java Chassis::Swagger::Invocation::JAXRS</name>
diff --git a/swagger/swagger-invocation/invocation-springmvc/pom.xml b/swagger/swagger-invocation/invocation-springmvc/pom.xml
index 0af8e40..c8edc5a 100644
--- a/swagger/swagger-invocation/invocation-springmvc/pom.xml
+++ b/swagger/swagger-invocation/invocation-springmvc/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-invocation</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-invocation-springmvc</artifactId>
   <name>Java Chassis::Swagger::Invocation::Spring MVC</name>
diff --git a/swagger/swagger-invocation/invocation-validator/pom.xml b/swagger/swagger-invocation/invocation-validator/pom.xml
index 1bd2893..3949905 100644
--- a/swagger/swagger-invocation/invocation-validator/pom.xml
+++ b/swagger/swagger-invocation/invocation-validator/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger-invocation</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-invocation-validator</artifactId>
   <name>Java Chassis::Swagger::Invocation::Validator</name>
diff --git a/swagger/swagger-invocation/pom.xml b/swagger/swagger-invocation/pom.xml
index 65cc433..0dc12a9 100644
--- a/swagger/swagger-invocation/pom.xml
+++ b/swagger/swagger-invocation/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>swagger</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>swagger-invocation</artifactId>
   <name>Java Chassis::Swagger::Invocation</name>
diff --git a/tracing/pom.xml b/tracing/pom.xml
index 5809ecf..23004bc 100644
--- a/tracing/pom.xml
+++ b/tracing/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <modelVersion>4.0.0</modelVersion>
diff --git a/tracing/tracing-common/pom.xml b/tracing/tracing-common/pom.xml
index ac56fc5..8e5dd40 100644
--- a/tracing/tracing-common/pom.xml
+++ b/tracing/tracing-common/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>tracing</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/tracing/tracing-zipkin/pom.xml b/tracing/tracing-zipkin/pom.xml
index 294fb13..04b553d 100644
--- a/tracing/tracing-zipkin/pom.xml
+++ b/tracing/tracing-zipkin/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <artifactId>tracing</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/transports/pom.xml b/transports/pom.xml
index 2c29326..5944514 100644
--- a/transports/pom.xml
+++ b/transports/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>java-chassis-parent</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
     <relativePath>../parents/default</relativePath>
   </parent>
   <artifactId>transports</artifactId>
diff --git a/transports/transport-common/pom.xml b/transports/transport-common/pom.xml
index 8a1c6df..52b5c50 100644
--- a/transports/transport-common/pom.xml
+++ b/transports/transport-common/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <artifactId>transports</artifactId>
     <groupId>org.apache.servicecomb</groupId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/transports/transport-highway/pom.xml b/transports/transport-highway/pom.xml
index 9783e9b..9feb1bf 100644
--- a/transports/transport-highway/pom.xml
+++ b/transports/transport-highway/pom.xml
@@ -21,7 +21,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>transports</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>transport-highway</artifactId>
   <name>Java Chassis::Transports::Hightway</name>
diff --git a/transports/transport-rest/pom.xml b/transports/transport-rest/pom.xml
index 14d6adb..92aea63 100644
--- a/transports/transport-rest/pom.xml
+++ b/transports/transport-rest/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>transports</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>transport-rest</artifactId>
   <name>Java Chassis::Transports::Rest</name>
diff --git a/transports/transport-rest/transport-rest-client/pom.xml b/transports/transport-rest/transport-rest-client/pom.xml
index 9a4cdad..7fc351e 100644
--- a/transports/transport-rest/transport-rest-client/pom.xml
+++ b/transports/transport-rest/transport-rest-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>transport-rest</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>transport-rest-client</artifactId>
   <name>Java Chassis::Transports::Rest::Client</name>
diff --git a/transports/transport-rest/transport-rest-servlet/pom.xml b/transports/transport-rest/transport-rest-servlet/pom.xml
index e82f37c..8629056 100644
--- a/transports/transport-rest/transport-rest-servlet/pom.xml
+++ b/transports/transport-rest/transport-rest-servlet/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>transport-rest</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>transport-rest-servlet</artifactId>
   <name>Java Chassis::Transports::Rest::Servlet</name>
diff --git a/transports/transport-rest/transport-rest-vertx/pom.xml b/transports/transport-rest/transport-rest-vertx/pom.xml
index 1d65c55..453f8d4 100644
--- a/transports/transport-rest/transport-rest-vertx/pom.xml
+++ b/transports/transport-rest/transport-rest-vertx/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.servicecomb</groupId>
     <artifactId>transport-rest</artifactId>
-    <version>${revision}</version>
+    <version>2.8.0</version>
   </parent>
   <artifactId>transport-rest-vertx</artifactId>
   <name>Java Chassis::Transports::Rest::Vertx</name>