diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 00418403a..4615e4010 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,6 +4,7 @@ on:
   push:
     tags:
       - v3*
+      - v4*
 
 jobs:
   k8s:
@@ -72,4 +73,11 @@ jobs:
         if: ${{ startsWith(github.ref, 'refs/tags/v3') }}
         run: |-
           kubectl set image deploy/srs3-deploy srs=registry.cn-hangzhou.aliyuncs.com/ossrs/srs:$SRS_TAG
-          kubectl describe deploy/srs3-deploy
\ No newline at end of file
+          kubectl describe deploy/srs3-deploy
+
+      - name: Release SRS 4.0 to Aliyun ACK
+        shell: bash
+        if: ${{ startsWith(github.ref, 'refs/tags/v4') }}
+        run: |-
+          kubectl set image deploy/srs4-deploy srs4=registry.cn-hangzhou.aliyuncs.com/ossrs/srs:$SRS_TAG
+          kubectl describe deploy/srs4-deploy
\ No newline at end of file
diff --git a/trunk/Dockerfile b/trunk/Dockerfile
index a48b22e79..616b3a7a2 100644
--- a/trunk/Dockerfile
+++ b/trunk/Dockerfile
@@ -6,7 +6,7 @@ RUN yum install -y gcc make gcc-c++ patch unzip perl git
 # Build and install SRS.
 COPY . /trunk
 WORKDIR /trunk
-RUN ./configure --jobs=2 && make -j2 && make install
+RUN ./configure --srt=on --jobs=2 && make -j2 && make install
 
 # All config files for SRS.
 RUN cp -R conf /usr/local/srs/conf
@@ -16,7 +16,7 @@ RUN cp research/api-server/static-dir/favicon.ico /usr/local/srs/objs/nginx/html
 RUN cp research/players/crossdomain.xml /usr/local/srs/objs/nginx/html/
 RUN cp -R research/console /usr/local/srs/objs/nginx/html/
 RUN cp -R research/players /usr/local/srs/objs/nginx/html/
-#RUN cp -R 3rdparty/signaling/www/demos /usr/local/srs/objs/nginx/html/
+RUN cp -R 3rdparty/signaling/www/demos /usr/local/srs/objs/nginx/html/
 
 ############################################################
 # dist