diff --git a/README.md b/README.md
index 9cf98d8b8..44789b094 100755
--- a/README.md
+++ b/README.md
@@ -92,6 +92,7 @@ A big `THANK YOU` also goes to:
 
 ## Releases
 
+* 2021-10-12, Release [v4.0.176](https://github.com/ossrs/srs/releases/tag/v4.0.176), 4.0 dev6, v4.0.176, 143675 lines.
 * 2021-09-05, Release [v4.0.161](https://github.com/ossrs/srs/releases/tag/v4.0.161), 4.0 dev5, v4.0.161, 145865 lines.
 * 2021-08-15, Release [v4.0.156](https://github.com/ossrs/srs/releases/tag/v4.0.156), 4.0 dev4, v4.0.156, 145490 lines.
 * 2021-08-14, Release [v4.0.153](https://github.com/ossrs/srs/releases/tag/v4.0.153), 4.0 dev3, v4.0.153, 145506 lines.
diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index f681e675a..1ec33f8d0 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -27,6 +27,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-10-12, Merge [#2549](https://github.com/ossrs/srs/pull/2549): Fix duration issue for HLS on_hls. v4.0.176
 * v4.0, 2021-10-11, Fix [#1641](https://github.com/ossrs/srs/issues/1641), HLS/RTC picture corrupt for SPS/PPS lost. v4.0.175
 * v4.0, 2021-10-11, RTC: Refine config, aac to rtmp_to_rtc, bframe to keep_bframe. v4.0.174
 * v4.0, 2021-10-10, For [#1641](https://github.com/ossrs/srs/issues/1641), Support RTMP publish and play regression test. v4.0.173
diff --git a/trunk/scripts/git.commit.sh b/trunk/scripts/git.commit.sh
index 653a09a04..509da3c3c 100755
--- a/trunk/scripts/git.commit.sh
+++ b/trunk/scripts/git.commit.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 
 #for file in $(git remote); do echo ""; git push $file $@; done
-for file in $(git remote -v|grep -v https|grep push|awk '{print $1}'); do echo ""; git push $file $@; done
+for file in $(git remote -v|grep -v https|grep push|awk '{print $1}'); do echo ""; echo "git push $file $@"; git push $file $@; done
 
diff --git a/trunk/src/app/srs_app_config.cpp b/trunk/src/app/srs_app_config.cpp
index 33b1a492b..09f875ad6 100644
--- a/trunk/src/app/srs_app_config.cpp
+++ b/trunk/src/app/srs_app_config.cpp
@@ -1984,6 +1984,16 @@ srs_error_t SrsConfig::parse_options(int argc, char** argv)
     if (config_file.empty()) {
         return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config, read help: %s -h", argv[0]);
     }
+
+    // For docker, if config is not specified, try srs.conf instead.
+    string try_config = srs_string_replace(config_file, "docker.conf", "srs.conf");
+    if (!srs_path_exists(config_file) && try_config != config_file) {
+        if (!srs_path_exists(try_config)) {
+            return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "no config file %s or %s", config_file.c_str(), try_config.c_str());
+        }
+        srs_warn("user config %s does not exists, use %s instead", config_file.c_str(), try_config.c_str());
+        config_file = try_config;
+    }
     
     err = parse_file(config_file.c_str());
     
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index cc8c1977d..5721b5e03 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    175
+#define VERSION_REVISION    176
 
 #endif