diff --git a/README.en.md b/README.en.md
deleted file mode 100644
index 232023cda443ae56f9b7c8a9690e01009d43fc3d..0000000000000000000000000000000000000000
--- a/README.en.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# pgpool2
-
-#### Description
-Pgpool-II is a middleware that works between PostgreSQL servers and a PostgreSQL database client.
-
-#### Software Architecture
-Software architecture description
-
-#### Installation
-
-1. xxxx
-2. xxxx
-3. xxxx
-
-#### Instructions
-
-1. xxxx
-2. xxxx
-3. xxxx
-
-#### Contribution
-
-1. Fork the repository
-2. Create Feat_xxx branch
-3. Commit your code
-4. Create Pull Request
-
-
-#### Gitee Feature
-
-1. You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
-2. Gitee blog [blog.gitee.com](https://blog.gitee.com)
-3. Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
-4. The most valuable open source project [GVP](https://gitee.com/gvp)
-5. The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
-6. The most popular members [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
diff --git a/README.md b/README.md
deleted file mode 100644
index fc1da8932e81dcdbdb60b11a751a94d74cb2e9c6..0000000000000000000000000000000000000000
--- a/README.md
+++ /dev/null
@@ -1,37 +0,0 @@
-# pgpool2
-
-#### 介绍
-Pgpool-II is a middleware that works between PostgreSQL servers and a PostgreSQL database client.
-
-#### 软件架构
-软件架构说明
-
-
-#### 安装教程
-
-1. xxxx
-2. xxxx
-3. xxxx
-
-#### 使用说明
-
-1. xxxx
-2. xxxx
-3. xxxx
-
-#### 参与贡献
-
-1. Fork 本仓库
-2. 新建 Feat_xxx 分支
-3. 提交代码
-4. 新建 Pull Request
-
-
-#### 特技
-
-1. 使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md
-2. Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com)
-3. 你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解 Gitee 上的优秀开源项目
-4. [GVP](https://gitee.com/gvp) 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目
-5. Gitee 官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help)
-6. Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
diff --git a/pcp_unix_domain_path.patch b/pcp_unix_domain_path.patch
new file mode 100644
index 0000000000000000000000000000000000000000..5b2b10685bb53f5209e1527609da81d25a6ec7ee
--- /dev/null
+++ b/pcp_unix_domain_path.patch
@@ -0,0 +1,17 @@
+*** src/include/pcp/pcp_stream.h 2020-07-31 09:24:10.835496879 +0900
+--- pcp_stream.h 2020-07-31 09:24:02.598396128 +0900
+***************
+*** 49,54 ****
+ extern int pcp_write(PCP_CONNECTION * pc, void *buf, int len);
+ extern int pcp_flush(PCP_CONNECTION * pc);
+
+! #define UNIX_DOMAIN_PATH "/tmp"
+
+ #endif /* PCP_STREAM_H */
+--- 49,54 ----
+ extern int pcp_write(PCP_CONNECTION * pc, void *buf, int len);
+ extern int pcp_flush(PCP_CONNECTION * pc);
+
+! #define UNIX_DOMAIN_PATH "/var/run/postgresql"
+
+ #endif /* PCP_STREAM_H */
diff --git a/pgpool-II-4.2.0.tar.gz b/pgpool-II-4.2.0.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..23ab9800925bcdbf7346204e6938e7e0c91615dc
Binary files /dev/null and b/pgpool-II-4.2.0.tar.gz differ
diff --git a/pgpool-II-head.patch b/pgpool-II-head.patch
new file mode 100644
index 0000000000000000000000000000000000000000..a6118cf428d173c6475d0b29a551d0b71d2421f8
--- /dev/null
+++ b/pgpool-II-head.patch
@@ -0,0 +1,11284 @@
+diff -crN pgpool-II-4.2.0/doc/src/sgml/html/LEGALNOTICE.html head/pgpool-II-4.2.0/doc/src/sgml/html/LEGALNOTICE.html
+*** pgpool-II-4.2.0/doc/src/sgml/html/LEGALNOTICE.html Thu Nov 26 01:26:12 2020
+--- head/pgpool-II-4.2.0/doc/src/sgml/html/LEGALNOTICE.html Thu Nov 26 09:06:01 2020
+***************
+*** 18,24 ****
+ HTTP-EQUIV="Content-Type"
+ CONTENT="text/html; charset=ISO-8859-1">