diff --git a/Changelist.md b/Changelist.md
index d1e481c2..f950d85b 100644
--- a/Changelist.md
+++ b/Changelist.md
@@ -1,4 +1,22 @@
 
+# v2.4.20 2021.05.18
+### en
+- application add addServantWithParams support parameter for handle
+- remove message.h opentracking define
+- fix tc_timer memory leak and timer id duplicate bug
+- support grpc and add GrpcDemo and fix tc_grpc compiler
+- 修复 windows 下 socket 设置阻塞异常
+- 修复 refresh-endpoint-interval 配置无效
+- update unittest
+### cn
+- Application 添加 addServantWithParams, 支持Servant构造参数
+- 去掉Message.h opentracking 定义
+- 修复tc_timer内存泄露和timer id可能冲突的问题
+- 支持grpc GrpcDemo, 修复tc_grpc compiler
+- 修复 windows 下 socket 设置阻塞异常
+- 修复 refresh-endpoint-interval 配置无效
+- 更新unittest
+
 # v2.4.19 2021.05.18
 ### en
 - fix TARS_OPENTARCKING not report trace bug
diff --git a/cmake/Common.cmake b/cmake/Common.cmake
index cc09c57a..5f49b649 100755
--- a/cmake/Common.cmake
+++ b/cmake/Common.cmake
@@ -1,6 +1,6 @@
 
 
-set(TARS_VERSION "2.4.13")
+set(TARS_VERSION "2.4.20")
 add_definitions(-DTARS_VERSION="${TARS_VERSION}")
 
 set(CMAKE_VERBOSE_MAKEFILE off)