diff --git a/README.md b/README.md
index 87fda461f..c114e44ec 100755
--- a/README.md
+++ b/README.md
@@ -155,6 +155,7 @@ For previous versions, please read:
 
 ## V4 changes
 
+* v4.0, 2021-02-10, RTC: Refine performance about 700+ streams. 4.0.71
 * v4.0, 2021-02-08, RTC: Print stat for pli and timer every 5s. 4.0.70
 * v4.0, 2021-02-07, RTC: Parse PT fast and refine udp handler. 4.0.69
 * v4.0, 2021-02-05, RTC: Refine UDP packet peer fast id. 4.0.68
diff --git a/trunk/.gitignore b/trunk/.gitignore
index a59009bab..1cbd7b7e6 100644
--- a/trunk/.gitignore
+++ b/trunk/.gitignore
@@ -45,6 +45,7 @@ srs
 /janus
 *.dump
 bug
+/research/thread-model/thread-local
 *.gcp
 *.svg
 
diff --git a/trunk/src/app/srs_app_hybrid.cpp b/trunk/src/app/srs_app_hybrid.cpp
index 528a5184f..35d1dbe70 100644
--- a/trunk/src/app/srs_app_hybrid.cpp
+++ b/trunk/src/app/srs_app_hybrid.cpp
@@ -226,7 +226,8 @@ srs_error_t SrsHybridServer::notify(int event, srs_utime_t interval, srs_utime_t
     int memory = (int)(u->rss * 4 / 1024);
 
     _srs_pps_cids_get->update(); _srs_pps_cids_set->update();
-    _srs_pps_timer->update(); _srs_pps_pub->update(); _srs_pps_conn->update(); _srs_pps_dispose->update();
+    _srs_pps_timer->update(); _srs_pps_pub->update(); _srs_pps_conn->update();
+    _srs_pps_dispose->update();
 
     srs_trace("Hybrid cpu=%.2f%%,%dMB, cid=%d,%d, timer=%d,%d,%d, free=%d",
         u->percent * 100, memory,
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 21c702cbb..f5ff1fd88 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -24,6 +24,6 @@
 #ifndef SRS_CORE_VERSION4_HPP
 #define SRS_CORE_VERSION4_HPP
 
-#define SRS_VERSION4_REVISION 70
+#define SRS_VERSION4_REVISION 71
 
 #endif