Update PDF files at 2021-04-09 05:16:10 UTC.
diff --git a/old_version_shardingsphere b/old_version_shardingsphere
index 83cafd4..719b99c 100644
--- a/old_version_shardingsphere
+++ b/old_version_shardingsphere
@@ -1,145 +1,34 @@
-commit c2166d61ec9450599278cae6254a5fc9399201fe
-Author: huanghao495430759 <34728144+huanghao495430759@users.noreply.github.com>
-Date:   Thu Apr 8 01:32:55 2021 -0500
+commit 5d19151438a23264899faf513337b16007ac405c
+Author: Liang Zhang <terrymanu@163.com>
+Date:   Fri Apr 9 12:58:48 2021 +0800
 
-    Issue#9326. New yaml configuration for authentication of ShardingProxy (#9897)
-    
-    * Add test case for PostgreSQLCommand #8439
-    
-    * Add test case for UpdateResponseHeader #8440
-    
-    * Add test case for PostgreSQLCommand #8439
-    
-    * Add test case for UpdateResponseHeader #8440
-    
-    * revert commit
-    
-    * issue#9326.New yaml configuration for authentication of ShardingProxy.
-    
-    * issue#9326.New yaml configuration for authentication of ShardingProxy.
-    
-    * issue#9326.New yaml configuration for authentication of ShardingProxy.
-    
-    * issue#9326.delete any unnecessary code.
-    
-    * issue#9326.fix authentication documents error.
-    
-    * issue#9326.fix any documents error and code error.
-    
-    * issue#9326.Renaming YamlUserConfigurationConverter.convertYamlUserConfigurationFormattings to YamlUserConfigurationConverter.convertYamlUserConfigurations.
-    
-    * issue#9326.Resolve RegistryCenter conflict.
-    
-    * issue#9845.fix any javadoc of YamlUserConfigurationConverter.
-    
-    * issue#9845.fix any conflict file error.
-    
-    * issue#9845.fix any conflict file error.
-    
-    * issue#9845.fix any conflict file error.
-    
-    Co-authored-by: huanghao-jk <huanghao-jk@360jinrong.net>
+    Update powered-by page (#10001)
 
-diff --git a/docs/document/content/features/governance/management/config-center.cn.md b/docs/document/content/features/governance/management/config-center.cn.md
-index 819b22d951..adee9ea22b 100644
---- a/docs/document/content/features/governance/management/config-center.cn.md
-+++ b/docs/document/content/features/governance/management/config-center.cn.md
-@@ -15,7 +15,7 @@ weight = 1
+diff --git a/docs/community/content/powered-by/_index.cn.md b/docs/community/content/powered-by/_index.cn.md
+index 2ee26fbea2..20ecafc486 100644
+--- a/docs/community/content/powered-by/_index.cn.md
++++ b/docs/community/content/powered-by/_index.cn.md
+@@ -192,7 +192,8 @@ chapter = true
+ <ul>
+     <li><a href="https://www.hikvision.com/" rel="nofollow">海康威视</a></li>
+     <li><a href="http://www.iotlead.com/" rel="nofollow">思创理德</a></li>
+-    <li><a href=" http://tcslwxwl.cn.b2b168.com/" rel="nofollow">神州商龙科技股份有限公司</a></li>
++    <li><a href="http://tcslwxwl.cn.b2b168.com/" rel="nofollow">神州商龙科技股份有限公司</a></li>
++    <li><a href="https://sunwuu.com/" rel="nofollow">商物云</a></li>
+ </ul>
  
- ```
- namespace
--    ├──authentication                            # 权限配置
-+    ├──users                                     # 权限配置
-     ├──props                                     # 属性配置
-     ├──schemas                                   # Schema 配置
-     ├      ├──${schema_1}                        # Schema 名称1
-@@ -28,13 +28,13 @@ namespace
-     ├      ├      ├──table                       # 表结构配置
- ```
+ ### 制造业
+diff --git a/docs/community/content/powered-by/_index.en.md b/docs/community/content/powered-by/_index.en.md
+index 7a4660975e..2357ae2776 100644
+--- a/docs/community/content/powered-by/_index.en.md
++++ b/docs/community/content/powered-by/_index.en.md
+@@ -192,7 +192,8 @@ Total: 165 companies.
+ <ul>
+     <li><a href="https://www.hikvision.com/" rel="nofollow">Hikvision</a></li>
+     <li><a href="http://www.iotlead.com/" rel="nofollow">Century Lead</a></li>
+-    <li><a href=" http://tcslwxwl.cn.b2b168.com/" rel="nofollow">Shenzhou Shanglong Technology Co.,Ltd </a></li>
++    <li><a href="http://tcslwxwl.cn.b2b168.com/" rel="nofollow">Shenzhou Shanglong Technology Co.,Ltd </a></li>
++    <li><a href="https://sunwuu.com/" rel="nofollow">SUNWUU</a></li>
+ </ul>
  
--### /authentication
-+### /users
- 
- 权限配置,可配置访问 ShardingSphere-Proxy 的用户名和密码。
- 
- ```yaml
--username: root
--password: root
-+- root@127.0.0.1:root
-+- sharding@%:sharding
- ```
- 
- ### /props
-diff --git a/docs/document/content/features/governance/management/config-center.en.md b/docs/document/content/features/governance/management/config-center.en.md
-index 8f46a719b3..ef92824f90 100644
---- a/docs/document/content/features/governance/management/config-center.en.md
-+++ b/docs/document/content/features/governance/management/config-center.en.md
-@@ -11,11 +11,11 @@ weight = 1
- 
- ## Structure in Configuration Center
- 
--Under defined namespace, configuration center stores data sources, rule configurations, authentication configuration, and properties in YAML. Modifying nodes can dynamically refresh configurations.
-+Under defined namespace, configuration center stores data sources, rule configurations, user configurations, and properties in YAML. Modifying nodes can dynamically refresh configurations.
- 
- ```
- namespace
--    ├──authentication                            # Authentication configuration
-+    ├──users                                     # Users configuration
-     ├──props                                     # Properties configuration
-     ├──schemas                                   # Schema configuration
-     ├      ├──${schema_1}                        # Schema name 1
-@@ -28,13 +28,13 @@ namespace
-     ├      ├      ├──table                       # Table configuration
- ```
- 
--### /authentication
-+### /users
- 
--Authentication configuration. Can configure username and password for ShardingSphere-Proxy.
-+user configurations. Can configure username and password for ShardingSphere-Proxy.
- 
- ```yaml
--username: root
--password: root
-+- root@127.0.0.1:root
-+- sharding@%:sharding
- ```
- 
- ### /props
-diff --git a/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.cn.md b/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.cn.md
-index 416a22283c..d7117f514e 100644
---- a/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.cn.md
-+++ b/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.cn.md
-@@ -7,11 +7,7 @@ weight = 2
- 配置用户名、密码、可访问的数据库后,必须使用正确的用户名、密码才可登录。
- 
- ```yaml
--authentication:
-   users:
--    root: # 自定义用户名
--      password: root # 自定义密码
--    sharding: # 自定义用户名
--      password: sharding # 自定义密码
--      hostname: '%' # 允许访问Sharding Proxy的主机。
-+  - root@:root # <username>@<hostname>:<password>
-+  - sharding@%:sharding
- ```
-diff --git a/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.en.md b/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.en.md
-index 953ef4712d..2540919149 100644
---- a/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.en.md
-+++ b/docs/document/content/user-manual/shardingsphere-proxy/configuration/authentication.en.md
-@@ -6,11 +6,7 @@ weight = 2
- It is used to verify the authentication to log in ShardingSphere-Proxy, which must use correct user name and password after the configuration of them.
- 
- ```yaml
--authentication:
--  users:
--    root: # Self-defined username
--      password: root # Self-defined password
--    sharding: # Self-defined username
--      password: sharding # Self-defined password
--      hostname: '%' # Which host can be allowed to access the Sharding Proxy.
-+users:
-+  - root@:root # <username>@<hostname>:<password>
-+  - sharding@%:sharding
- ```
+ ### Manufacturing
diff --git a/pdf/shardingsphere_docs_cn.pdf b/pdf/shardingsphere_docs_cn.pdf
index 7717cb1..b5ade2c 100644
--- a/pdf/shardingsphere_docs_cn.pdf
+++ b/pdf/shardingsphere_docs_cn.pdf
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diff --git a/pdf/shardingsphere_docs_en.pdf b/pdf/shardingsphere_docs_en.pdf
index 5021585..1086701 100644
--- a/pdf/shardingsphere_docs_en.pdf
+++ b/pdf/shardingsphere_docs_en.pdf
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