diff --git a/README.en.md b/README.en.md
index db49601b7e54894e9847cb3f2e77e3ae175cb874..dccf3bc5e99b4de33a7126819d021ef1104d2790 100644
--- a/README.en.md
+++ b/README.en.md
@@ -14,7 +14,7 @@ AArch64
 
 #### Instructions
 
-Note! Only openEuler 20.09 is supported currently.
+Note! Only openEuler 20.09 and 20.03 LTS SP1 are supported currently.
 
 After installing raspberrypi-build, you can find the scripts and related files for building openEuler image of Raspberry Pi in `/opt/raspberrypi-build`.
 
diff --git a/README.md b/README.md
index 334bdd5e58dd3fa40d485dcb22bd5c820cbc5396..05c13ad05c1acd87c150fb079002b2900bb43335 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ AArch64
 
 #### 使用说明
 
-注意！当前只支持 openEuler 20.09 版本。
+注意！当前只支持 openEuler 20.09/20.03 LTS SP1 版本。
 
 安装 raspberrypi-build 后，树莓派镜像构建的脚本及相关文件会保存在 `/opt/raspberrypi-build`。
 
diff --git a/raspberrypi-build.spec b/raspberrypi-build.spec
index ed424b967b1ae359d2b5776a2ba895787a8bc4df..11eeff4c8f549f940e904e3a82ebb8a42db1a0dc 100644
--- a/raspberrypi-build.spec
+++ b/raspberrypi-build.spec
@@ -1,8 +1,8 @@
 %global debug_package %{nil}
 
 Name:		raspberrypi-build
-Version:	2.2
-Release:	8
+Version:	2.3
+Release:	9
 Summary:	Scripts of building images for RaspberryPi
 License:	Mulan v2
 ExclusiveArch: aarch64
@@ -32,6 +32,11 @@ cp -a raspberrypi-build/config %{buildroot}/opt/raspberrypi-build/
 
 
 %changelog
+* Mon Dec 21 2020 Yafen Fang<yafen@iscas.ac.cn> - 2.3-9
+- bug fix: mount and umount dir
+- add License in scripts
+- install and start haveged on boot
+
 * Mon Nov 23 2020 Yafen Fang<yafen@iscas.ac.cn> - 2.2-8
 - update 99-com.rules to its latest commit: a312e1166d325d98a1e237d4527b01e05b0cce3d
 
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