diff --git a/trunk/auto/auto_headers.sh b/trunk/auto/auto_headers.sh
index 25564d1d26..3983433a99 100755
--- a/trunk/auto/auto_headers.sh
+++ b/trunk/auto/auto_headers.sh
@@ -11,6 +11,7 @@ echo "#ifndef SRS_AUTO_HEADER_HPP" >> $SRS_AUTO_HEADERS_H
 echo "#define SRS_AUTO_HEADER_HPP" >> $SRS_AUTO_HEADERS_H
 echo "" >> $SRS_AUTO_HEADERS_H
 
+echo "#define SRS_AUTO_PACKAGER \"${SRS_AUTO_PACKAGER}\"" >> $SRS_AUTO_HEADERS_H
 echo "#define SRS_AUTO_BUILD_TS \"`date +%s`\"" >> $SRS_AUTO_HEADERS_H
 echo "#define SRS_AUTO_BUILD_DATE \"`date \"+%Y-%m-%d %H:%M:%S\"`\"" >> $SRS_AUTO_HEADERS_H
 echo "#define SRS_AUTO_UNAME \"`uname -a`\"" >> $SRS_AUTO_HEADERS_H
diff --git a/trunk/src/app/srs_app_latest_version.cpp b/trunk/src/app/srs_app_latest_version.cpp
index e1a591ec14..fce658795e 100644
--- a/trunk/src/app/srs_app_latest_version.cpp
+++ b/trunk/src/app/srs_app_latest_version.cpp
@@ -39,6 +39,15 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <sstream>
 using namespace std;
 
+// Whether we are in docker, defined in main module.
+extern bool _srs_in_docker;
+
+void srs_build_features(stringstream& ss)
+{
+    ss << "&docker=" << _srs_in_docker
+        << "&packager=" << SRS_AUTO_PACKAGER;
+}
+
 SrsLatestVersion::SrsLatestVersion()
 {
     trd_ = new SrsSTCoroutine("signal", this);
@@ -111,6 +120,7 @@ srs_error_t SrsLatestVersion::query_latest_version()
           << "&id=" << server_id_ << "&role=srs"
           << "&eip=" << srs_get_public_internet_address()
           << "&ts=" << srsu2ms(srs_get_system_time());
+    srs_build_features(ss);
     string url = ss.str();
 
     SrsHttpUri uri;
diff --git a/trunk/src/core/srs_core_version3.hpp b/trunk/src/core/srs_core_version3.hpp
index 684a4fc32d..90289f0552 100644
--- a/trunk/src/core/srs_core_version3.hpp
+++ b/trunk/src/core/srs_core_version3.hpp
@@ -24,6 +24,6 @@
 #ifndef SRS_CORE_VERSION3_HPP
 #define SRS_CORE_VERSION3_HPP
 
-#define SRS_VERSION3_REVISION 165
+#define SRS_VERSION3_REVISION 166
 
 #endif