diff --git a/README.md b/README.md
index d018db0a1f0a358bde750da0075b1736b15a7d39..2fdc83db96d1b418aabddabe35f9709e2c72f810 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,8 @@ pip install paddle-serving-server-gpu # GPU
 
 You may need to use a domestic mirror source (in China, you can use the Tsinghua mirror source, add `-i https://pypi.tuna.tsinghua.edu.cn/simple` to pip command) to speed up the download.
 
+If you need install modules compiled with develop branch, please download packages from [latest packages list](./doc/LATEST_PACKAGES.md) and install with `pip install` command.
+
 Client package support Centos 7 and Ubuntu 18, or you can use HTTP service without install client.
 
 <h2 align="center">Quick Start Example</h2>
diff --git a/README_CN.md b/README_CN.md
index 3e39e1854c9fda8545172dfb7679fde881827741..547a50e7a430f3afb3a69eae211ed87cb248a268 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -57,6 +57,8 @@ pip install paddle-serving-server-gpu # GPU
 
 您可能需要使用国内镜像源（例如清华源, 在pip命令中添加`-i https://pypi.tuna.tsinghua.edu.cn/simple`）来加速下载。
 
+如果需要使用develop分支编译的安装包，请从[最新安装包列表](./doc/LATEST_PACKAGES.md)中获取下载地址进行下载，使用`pip install`命令进行安装。
+
 客户端安装包支持Centos 7和Ubuntu 18，或者您可以使用HTTP服务，这种情况下不需要安装客户端。
 
 <h2 align="center">快速启动示例</h2>
diff --git a/doc/LATEST_PACKAGES.md b/doc/LATEST_PACKAGES.md
new file mode 100644
index 0000000000000000000000000000000000000000..8756743a5c23778ea2d4753a693a272d5f6eb992
--- /dev/null
+++ b/doc/LATEST_PACKAGES.md
@@ -0,0 +1,47 @@
+# Latest Wheel Packages
+
+## CPU server
+### Python 3
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_server-0.3.0-py3-none-any.whl
+```
+
+### Python 2
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_server-0.3.0-py2-none-any.whl
+```
+
+## GPU server
+### Python 3
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_server_gpu-0.3.0-py3-none-any.whl
+```
+### Python 2
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_server_gpu-0.3.0-py2-none-any.whl
+```
+
+## Client
+### Python 3.7
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_client-0.3.0-cp37-none-manylinux1_x86_64.whl
+```
+### Python 3.6
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_client-0.3.0-cp36-none-manylinux1_x86_64.whl
+```
+### Python 2.7
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_client-0.3.0-cp27-none-manylinux1_x86_64.whl
+```
+
+## App
+### Python 3
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_app-0.1.0-py3-none-any.whl
+```
+
+### Python 2
+```
+https://paddle-serving.bj.bcebos.com/whl/paddle_serving_app-0.1.0-py2-none-any.whl
+```
diff --git a/python/examples/bert/test_multi_fetch_client.py b/python/examples/bert/test_multi_fetch_client.py
new file mode 100644
index 0000000000000000000000000000000000000000..c15c4d4deaf282c432ff0990ee03c6e80daeee74
--- /dev/null
+++ b/python/examples/bert/test_multi_fetch_client.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from paddle_serving_client import Client
+from paddle_serving_app.reader import ChineseBertReader
+import sys
+
+client = Client()
+client.load_client_config("./bert_seq32_client/serving_client_conf.prototxt")
+client.connect(["127.0.0.1:9292"])
+
+reader = ChineseBertReader({"max_seq_len": 32})
+fetch = ["sequence_10", "sequence_12", "pooled_output"]
+expected_shape = {
+    "sequence_10": (4, 32, 768),
+    "sequence_12": (4, 32, 768),
+    "pooled_output": (4, 768)
+}
+batch_size = 4
+feed_batch = []
+
+for line in sys.stdin:
+    feed = reader.process(line)
+    if len(feed_batch) < batch_size:
+        feed_batch.append(feed)
+    else:
+        fetch_map = client.predict(feed=feed_batch, fetch=fetch)
+        feed_batch = []
+        for var_name in fetch:
+            if fetch_map[var_name].shape != expected_shape[var_name]:
+                print("fetch var {} shape error.".format(var_name))
+                sys.exit(1)
diff --git a/python/examples/fit_a_line/test_multi_process_client.py b/python/examples/fit_a_line/test_multi_process_client.py
new file mode 100644
index 0000000000000000000000000000000000000000..46ba3b60b5ae09b568868531d32234ade50d8556
--- /dev/null
+++ b/python/examples/fit_a_line/test_multi_process_client.py
@@ -0,0 +1,36 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from paddle_serving_client import Client
+from paddle_serving_client.utils import MultiThreadRunner
+import paddle
+
+
+def single_func(idx, resource):
+    client = Client()
+    client.load_client_config(
+        "./uci_housing_client/serving_client_conf.prototxt")
+    client.connect(["127.0.0.1:9293", "127.0.0.1:9292"])
+    test_reader = paddle.batch(
+        paddle.reader.shuffle(
+            paddle.dataset.uci_housing.test(), buf_size=500),
+        batch_size=1)
+    for data in test_reader():
+        fetch_map = client.predict(feed={"x": data[0][0]}, fetch=["price"])
+    return [[0]]
+
+
+multi_thread_runner = MultiThreadRunner()
+thread_num = 4
+result = multi_thread_runner.run(single_func, thread_num, {})
diff --git a/python/examples/senta/get_data.sh b/python/examples/senta/get_data.sh
index fcd060f42aa2386e841f122c851394fc472d7f5b..7fd5c3e21880c44f27c4f4a037be87dc24790bc4 100644
--- a/python/examples/senta/get_data.sh
+++ b/python/examples/senta/get_data.sh
@@ -1,7 +1,7 @@
 wget https://paddle-serving.bj.bcebos.com/paddle_hub_models/text/SentimentAnalysis/senta_bilstm.tar.gz --no-check-certificate
 tar -xzvf senta_bilstm.tar.gz
 wget https://paddle-serving.bj.bcebos.com/paddle_hub_models/text/LexicalAnalysis/lac.tar.gz --no-check-certificate
-tar -xzvf lac_model.tar.gz
+tar -xzvf lac.tar.gz
 wget https://paddle-serving.bj.bcebos.com/reader/lac/lac_dict.tar.gz  --no-check-certificate
 tar -xzvf lac_dict.tar.gz
 wget https://paddle-serving.bj.bcebos.com/reader/senta/vocab.txt --no-check-certificate
diff --git a/tools/serving_build.sh b/tools/serving_build.sh
index 43e55174ab30374d853ed1bb25aa4a9cc637afd5..8e78e13ef8e86b55af6a90df1b9235611508c0ba 100644
--- a/tools/serving_build.sh
+++ b/tools/serving_build.sh
@@ -331,6 +331,75 @@ function python_test_bert() {
     cd ..
 }
 
+function python_test_multi_fetch() {
+    # pwd: /Serving/python/examples
+    local TYPT=$1
+    export SERVING_BIN=${SERVING_WORKDIR}/build-server-${TYPE}/core/general-server/serving
+    cd bert # pwd: /Serving/python/examples/bert
+    case $TYPE in
+        CPU)
+            #download model (max_seq_len=32)
+            wget https://paddle-serving.bj.bcebos.com/bert_example/bert_multi_fetch.tar.gz
+            tar -xzvf bert_multi_fetch.tar.gz
+            check_cmd "python -m paddle_serving_server.serve --model bert_seq32_model --port 9292 &"
+            sleep 5
+            check_cmd "head -n 8 data-c.txt | python test_multi_fetch_client.py"
+            kill_server_process
+            echo "bert mutli fetch RPC inference pass"
+            ;;
+        GPU)
+            #download model (max_seq_len=32)
+            wget https://paddle-serving.bj.bcebos.com/bert_example/bert_multi_fetch.tar.gz
+            tar -xzvf bert_multi_fetch.tar.gz
+            check_cmd "python -m paddle_serving_server_gpu.serve --model bert_seq32_model --port 9292 --gpu_ids 0 &"
+            sleep 5
+            check_cmd "head -n 8 data-c.txt | python test_multi_fetch_client.py"
+            kill_server_process
+            echo "bert mutli fetch RPC inference pass"
+            ;;
+        *)
+            echo "error type"
+            exit 1
+            ;;
+    esac
+    echo "test multi fetch $TYPE finished as expected."
+    unset SERVING_BIN
+    cd ..
+}
+
+function python_test_multi_process(){
+    # pwd: /Serving/python/examples
+    local TYPT=$1
+    export SERVING_BIN=${SERVING_WORKDIR}/build-server-${TYPE}/core/general-server/serving
+    cd fit_a_line # pwd: /Serving/python/examples/fit_a_line
+    sh get_data.sh
+    case $TYPE in
+        CPU)
+            check_cmd "python -m paddle_serving_server.serve --model uci_housing_model --port 9292 &"
+            check_cmd "python -m paddle_serving_server.serve --model uci_housing_model --port 9293 &"
+            sleep 5
+            check_cmd "python test_multi_process_client.py"
+            kill_server_process
+            echo "bert mutli rpc RPC inference pass"
+            ;;
+        GPU)
+            check_cmd "python -m paddle_serving_server_gpu.serve --model uci_housing_model --port 9292 --gpu_ids 0 &"
+            check_cmd "python -m paddle_serving_server_gpu.serve --model uci_housing_model --port 9293 --gpu_ids 0 &"
+            sleep 5
+            check_cmd "python test_multi_process_client.py"
+            kill_server_process
+            echo "bert mutli process RPC inference pass"
+            ;;
+        *)
+            echo "error type"
+            exit 1
+            ;;
+    esac
+    echo "test multi process $TYPE finished as expected."
+    unset SERVING_BIN
+    cd ..
+}
+
 function python_test_imdb() {
     # pwd: /Serving/python/examples
     local TYPE=$1
@@ -436,7 +505,9 @@ function python_run_test() {
     python_run_criteo_ctr_with_cube $TYPE # pwd: /Serving/python/examples
     python_test_bert $TYPE # pwd: /Serving/python/examples
     python_test_imdb $TYPE # pwd: /Serving/python/examples
-    python_test_lac $TYPE
+    python_test_lac $TYPE # pwd: /Serving/python/examples
+    python_test_multi_process $TYPE # pwd: /Serving/python/examples
+    python_test_multi_fetch $TYPE # pwd: /Serving/python/examples
     echo "test python $TYPE part finished as expected."
     cd ../.. # pwd: /Serving
 }