diff --git a/apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/trace.graphqls b/apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/trace.graphqls
index decd531af..0e5340899 100644
--- a/apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/trace.graphqls
+++ b/apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/trace.graphqls
@@ -43,6 +43,7 @@ type Span {
   spanId: Int!
   parentSpanId: Int!
   refs: [Ref!]!
+  applicationCode: String!
   startTime: Long!
   endTime: Long!
   operationName: String
diff --git a/docs/Supported-list.md b/docs/Supported-list.md
index 08a11951b..ea49a3aa1 100644
--- a/docs/Supported-list.md
+++ b/docs/Supported-list.md
@@ -24,7 +24,7 @@
   * [Sharding-JDBC](https://github.com/shardingjdbc/sharding-jdbc) 1.5.x
   * PostgreSQL Driver 8.x, 9.x, 42.x
 * RPC Frameworks
-  * [Dubbo](https://github.com/alibaba/dubbo) 2.5.3
+  * [Dubbo](https://github.com/alibaba/dubbo) 2.5.4 -> 2.6.0
   * [Dubbox](https://github.com/dangdangdotcom/dubbox) 2.8.4
   * [Motan](https://github.com/weibocom/motan) 0.2.x -> 1.1.0
   * [gRPC](https://github.com/grpc/grpc-java) 1.6+