diff --git a/CHANGELOG.md b/CHANGELOG.md
index f241ba78d..c9bea3681 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-08-07, Merge [#2514](https://github.com/ossrs/srs/pull/2514), Get original client ip instead of proxy ip, for rtc api #2514. 4.0.150
 * v4.0, 2021-08-07, Fix [#2508](https://github.com/ossrs/srs/pull/2508), Support features query by API. 4.0.149
 * v4.0, 2021-07-25, Fix build failed. 4.0.146
 * v4.0, 2021-07-24, Merge [#2373](https://github.com/ossrs/srs/pull/2373), RTC: Fix NACK negotiation bug for Firefox. 4.0.145
diff --git a/README.md b/README.md
index 784941fa1..9c9554ed8 100755
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ please set the CANDIDATE ([CN][v4_CN_WebRTC#config-candidate],[EN][v4_EN_WebRTC#
 ```bash
 docker run --rm -it -p 1935:1935 -p 1985:1985 -p 8080:8080 \
     --env CANDIDATE=$(ifconfig en0 inet| grep 'inet '|awk '{print $2}') -p 8000:8000/udp \
-    ossrs/srs:v4.0.139 ./objs/srs -c conf/srs.conf
+    ossrs/srs:4 ./objs/srs -c conf/srs.conf
 ```
 
 <a name="usage-source"></a>
@@ -219,6 +219,7 @@ Please read [CHANGELOG](CHANGELOG.md#changelog).
 
 ## Releases
 
+* 2020-08-07, Release [v4.0.150](https://github.com/ossrs/srs/releases/tag/v4.0.150), 4.0 dev2, v4.0.150, 145289 lines.
 * 2020-07-25, Release [v4.0.146](https://github.com/ossrs/srs/releases/tag/v4.0.146), 4.0 dev1, v4.0.146, 144026 lines.
 * 2020-07-04, Release [v4.0.139](https://github.com/ossrs/srs/releases/tag/v4.0.139), 4.0 dev0, v4.0.139, 143245 lines.
 * 2020-06-27, [Release v3.0-r0][r3.0r0], 3.0 release0, 3.0.141, 122674 lines.
diff --git a/trunk/3rdparty/signaling/README.md b/trunk/3rdparty/signaling/README.md
index f20c724f9..b534457f0 100644
--- a/trunk/3rdparty/signaling/README.md
+++ b/trunk/3rdparty/signaling/README.md
@@ -9,7 +9,7 @@ WebRTC signaling for https://github.com/ossrs/srs
 ```bash
 docker run --rm --env CANDIDATE=$(ifconfig en0 inet| grep 'inet '|awk '{print $2}') \
   -p 1935:1935 -p 8080:8080 -p 1985:1985 -p 8000:8000/udp \
-  registry.cn-hangzhou.aliyuncs.com/ossrs/srs:v4.0.95 \
+  registry.cn-hangzhou.aliyuncs.com/ossrs/srs:4 \
   objs/srs -c conf/rtc.conf
 ```
 
diff --git a/trunk/3rdparty/srs-bench/README.md b/trunk/3rdparty/srs-bench/README.md
index d45820cc8..9fb5ff9ca 100644
--- a/trunk/3rdparty/srs-bench/README.md
+++ b/trunk/3rdparty/srs-bench/README.md
@@ -105,7 +105,7 @@ ffmpeg -re -i doc/source.200kbps.768x320.flv -c copy -f flv -y rtmp://localhost/
 if [[ ! -z $(ifconfig en0 inet| grep 'inet '|awk '{print $2}') ]]; then 
   docker run -p 1935:1935 -p 8080:8080 -p 1985:1985 -p 8000:8000/udp \
       --rm --env CANDIDATE=$(ifconfig en0 inet| grep 'inet '|awk '{print $2}')\
-      registry.cn-hangzhou.aliyuncs.com/ossrs/srs:v4.0.76 objs/srs -c conf/rtc.conf
+      registry.cn-hangzhou.aliyuncs.com/ossrs/srs:4 objs/srs -c conf/rtc.conf
 fi
 ```
 
diff --git a/trunk/src/app/srs_app_latest_version.cpp b/trunk/src/app/srs_app_latest_version.cpp
index 54a08aa8c..53576dfa8 100644
--- a/trunk/src/app/srs_app_latest_version.cpp
+++ b/trunk/src/app/srs_app_latest_version.cpp
@@ -58,13 +58,15 @@ void srs_build_features(stringstream& ss)
         SrsConfDirective* conf = root->at(i);
 
         if (!rtsp && conf->is_stream_caster() && _srs_config->get_stream_caster_enabled(conf)) {
-            if (_srs_config->get_stream_caster_engine(conf) == "rtsp") {
+            string engine = _srs_config->get_stream_caster_engine(conf);
+            if (engine == "rtsp") {
                 rtsp = true;
             }
         }
 
         if (conf->is_vhost() && _srs_config->get_vhost_enabled(conf)) {
             nn_vhosts++;
+
             if (!forward && _srs_config->get_forward_enabled(conf)) {
                 forward = true;
             }
@@ -96,14 +98,19 @@ void srs_build_features(stringstream& ss)
                 security = true;
             }
 
-            for (int j = 0; j < (int)conf->directives.size(); j++) {
+            for (int j = 0; j < (int)conf->directives.size() && j < 64; j++) {
                 SrsConfDirective* prop = conf->directives.at(j);
+
                 if (!ingest && prop->name == "ingest" && _srs_config->get_ingest_enabled(prop)) {
                     ingest = true;
                 }
                 if (!transcode && prop->name == "transcode" && _srs_config->get_transcode_enabled(prop)) {
                     transcode = true;
                 }
+
+                if (ingest && transcode) {
+                    break;
+                }
             }
         }
     }
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index ecdec4892..e856ee24a 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    149
+#define VERSION_REVISION    150
 
 #endif