diff --git a/README-CN.md b/README-CN.md
index ad31266bd4dd559c4fb402109c9a4d869c3526c1..b2ae7778377fd70bc4865c3e7576227ad5eba8a8 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -50,19 +50,12 @@ TDengine 目前 2.0 版服务器仅能在 Linux 系统上安装和运行，后
 
 ## 安装工具
 
-### Ubuntu 16.04 及以上版本 & Debian：
+### Ubuntu 18.04 及以上版本 & Debian：
 
 ```bash
 sudo apt-get install -y gcc cmake build-essential git libssl-dev
 ```
 
-### Ubuntu 14.04：
-
-```bash
-sudo apt-get install -y gcc cmake3 build-essential git binutils-2.26
-export PATH=/usr/lib/binutils-2.26/bin:$PATH
-```
-
 编译或打包 JDBC 驱动源码，需安装 Java JDK 8 或以上版本和 Apache Maven 2.7 或以上版本。
 
 安装 OpenJDK 8：
@@ -89,7 +82,7 @@ taosTools 是用于 TDengine 的辅助工具软件集合。目前它包含 taosB
 sudo apt install build-essential libjansson-dev libsnappy-dev liblzma-dev libz-dev pkg-config
 ```
 
-### CentOS 7：
+### CentOS 7.9：
 
 ```bash
 sudo yum install -y gcc gcc-c++ make cmake git openssl-devel
diff --git a/README.md b/README.md
index 309bf16d7756f4c091159f5116e08b9f29f930f3..2f38120b342e1fb60f3a5980575f75e45f2d0913 100644
--- a/README.md
+++ b/README.md
@@ -53,19 +53,12 @@ To build TDengine, use [CMake](https://cmake.org/) 3.0.2 or higher versions in t
 
 ## Install build dependencies
 
-### Ubuntu 16.04 and above or Debian
+### Ubuntu 18.04 and above or Debian
 
 ```bash
 sudo apt-get install -y gcc cmake build-essential git libssl-dev
 ```
 
-### Ubuntu 14.04
-
-```bash
-sudo apt-get install -y gcc cmake3 build-essential git binutils-2.26
-export PATH=/usr/lib/binutils-2.26/bin:$PATH
-```
-
 To compile and package the JDBC driver source code, you should have a Java jdk-8 or higher and Apache Maven 2.7 or higher installed.
 
 To install openjdk-8:
@@ -91,7 +84,7 @@ To build the [taosTools](https://github.com/taosdata/taos-tools) on Ubuntu/Debia
 sudo apt install build-essential libjansson-dev libsnappy-dev liblzma-dev libz-dev pkg-config
 ```
 
-### CentOS 7
+### CentOS 7.9
 
 ```bash
 sudo yum install epel-release
diff --git a/cmake/cmake.platform b/cmake/cmake.platform
index 49e730a8851a160c43de30d39f934dd6aad93659..cd1be78fbca7e03e5b1489db9085d413c895cb39 100644
--- a/cmake/cmake.platform
+++ b/cmake/cmake.platform
@@ -97,13 +97,13 @@ IF ("${CPUTYPE}" STREQUAL "")
 ELSE ()
   # if generate ARM version:
   #   cmake -DCPUTYPE=aarch32 .. or cmake -DCPUTYPE=aarch64
-  IF (${CPUTYPE} MATCHES "aarch32")
+  IF (${CPUTYPE} MATCHES "aarch32" or ${CPUTYPE} MATCHES "arm32")
     SET(PLATFORM_ARCH_STR "arm")
     MESSAGE(STATUS "input cpuType: aarch32")
     ADD_DEFINITIONS("-D_TD_ARM_")
     ADD_DEFINITIONS("-D_TD_ARM_32")
     SET(TD_ARM_32 TRUE)
-  ELSEIF (${CPUTYPE} MATCHES "aarch64")
+  ELSEIF (${CPUTYPE} MATCHES "aarch64" or ${CPUTYPE} MATCHES "arm64")
     SET(PLATFORM_ARCH_STR "arm64")
     MESSAGE(STATUS "input cpuType: aarch64")
     ADD_DEFINITIONS("-D_TD_ARM_")
diff --git a/examples/rust b/examples/rust
new file mode 160000
index 0000000000000000000000000000000000000000..7ed7a97715388fa144718764d6bf20f9bfc29a12
--- /dev/null
+++ b/examples/rust
@@ -0,0 +1 @@
+Subproject commit 7ed7a97715388fa144718764d6bf20f9bfc29a12
diff --git a/packaging/deb/makedeb.sh b/packaging/deb/makedeb.sh
index 3e46a1aa5575df27b7ca6c4e1ef67190d8047fdb..6de475a4c0ea48e8aa6befe1a735bf67e3f88b8f 100755
--- a/packaging/deb/makedeb.sh
+++ b/packaging/deb/makedeb.sh
@@ -60,7 +60,7 @@ cp ${compile_dir}/../packaging/tools/set_core.sh    ${pkg_dir}${install_home_pat
 cp ${compile_dir}/../packaging/tools/taosd-dump-cfg.gdb    ${pkg_dir}${install_home_path}/bin
 
 cp ${compile_dir}/build/bin/taosd                   ${pkg_dir}${install_home_path}/bin
-#cp ${compile_dir}/build/bin/taosBenchmark           ${pkg_dir}${install_home_path}/bin
+cp ${compile_dir}/build/bin/taosBenchmark           ${pkg_dir}${install_home_path}/bin
 
 if [ -f "${compile_dir}/build/bin/taosadapter" ]; then
     cp ${compile_dir}/build/bin/taosadapter                    ${pkg_dir}${install_home_path}/bin ||:
diff --git a/packaging/rpm/tdengine.spec b/packaging/rpm/tdengine.spec
index 79e4b2edb838412fd7bdc7a703458d1f6b89940f..d3d4bab0e697f10a4f1824931206cf53fd11d07b 100644
--- a/packaging/rpm/tdengine.spec
+++ b/packaging/rpm/tdengine.spec
@@ -69,7 +69,7 @@ cp %{_compiledir}/../packaging/tools/set_core.sh    %{buildroot}%{homepath}/bin
 cp %{_compiledir}/../packaging/tools/taosd-dump-cfg.gdb    %{buildroot}%{homepath}/bin
 cp %{_compiledir}/build/bin/taos                    %{buildroot}%{homepath}/bin
 cp %{_compiledir}/build/bin/taosd                   %{buildroot}%{homepath}/bin
-#cp %{_compiledir}/build/bin/taosBenchmark           %{buildroot}%{homepath}/bin
+cp %{_compiledir}/build/bin/taosBenchmark           %{buildroot}%{homepath}/bin
 
 if [ -f %{_compiledir}/build/bin/taosadapter ]; then
     cp %{_compiledir}/build/bin/taosadapter                    %{buildroot}%{homepath}/bin ||:
diff --git a/packaging/tools/post.sh b/packaging/tools/post.sh
index d637ab8d5ab74b5fc1d72f782be1b338db0d7638..aa80cfb86c839858e1702ea6c2b7f8fcd9cdfc99 100755
--- a/packaging/tools/post.sh
+++ b/packaging/tools/post.sh
@@ -132,6 +132,7 @@ function install_bin() {
     [ -x ${bin_dir}/taosd ] && ${csudo}ln -s ${bin_dir}/taosd ${bin_link_dir}/taosd          || :
     [ -x ${bin_dir}/taosadapter ] && ${csudo}ln -s ${bin_dir}/taosadapter ${bin_link_dir}/taosadapter             || :
     [ -x ${bin_dir}/taosBenchmark ] && ${csudo}ln -sf ${bin_dir}/taosBenchmark ${bin_link_dir}/taosdemo || :
+    [ -x ${bin_dir}/taosBenchmark ] && ${csudo}ln -sf ${bin_dir}/taosBenchmark ${bin_link_dir}/taosBenchmark || :
     [ -x ${bin_dir}/TDinsight.sh ] && ${csudo}ln -sf ${bin_dir}/TDinsight.sh ${bin_link_dir}/TDinsight.sh || :
     [ -x ${bin_dir}/taosdump ] && ${csudo}ln -s ${bin_dir}/taosdump ${bin_link_dir}/taosdump || :
     [ -x ${bin_dir}/set_core.sh ] && ${csudo}ln -s ${bin_dir}/set_core.sh ${bin_link_dir}/set_core || :
diff --git a/tools/taos-tools b/tools/taos-tools
new file mode 160000
index 0000000000000000000000000000000000000000..3c7dafeea3e558968165b73bee0f51024898e3da
--- /dev/null
+++ b/tools/taos-tools
@@ -0,0 +1 @@
+Subproject commit 3c7dafeea3e558968165b73bee0f51024898e3da