diff --git a/cmd/Open-IM-SDK-Core b/cmd/Open-IM-SDK-Core
index 855e89361..23f31958d 160000
--- a/cmd/Open-IM-SDK-Core
+++ b/cmd/Open-IM-SDK-Core
@@ -1 +1 @@
-Subproject commit 855e893610c905e3105484c3519613b993301bd2
+Subproject commit 23f31958dae08260c5f9631f4937389a8e2d6751
diff --git a/config/config.yaml b/config/config.yaml
index a2d08fcbf..29bc4416c 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -1,7 +1,7 @@
 # The class cannot be named by Pascal or camel case.
 # If it is not used, the corresponding structure will not be set,
 # and it will not be read naturally.
-serverversion: 1.0.3
+serverversion: 2.0.0
 #---------------Infrastructure configuration---------------------#
 etcd:
   etcdSchema: openIM
@@ -11,7 +11,7 @@ mysql:
   dbMysqlAddress: [ 127.0.0.1:13306 ]
   dbMysqlUserName: root
   dbMysqlPassword: openIM
-  dbMysqlDatabaseName: openIM
+  dbMysqlDatabaseName: openIM_v2
   dbTableName: eMsg
   dbMsgTableNum: 1
   dbMaxOpenConns: 20