diff --git a/CHANGELOG-2.5.md b/CHANGELOG-2.5.md
index 5bf340614..39f1c02c3 100644
--- a/CHANGELOG-2.5.md
+++ b/CHANGELOG-2.5.md
@@ -1,3 +1,18 @@
+## RubyInstaller-2.5.9-1 - 2020-04-19
+
+### Added
+- Add more environment variables needed for configure scripts: MSYSTEM_PREFIX, MSYSTEM_CARCH, MSYSTEM_CHOST, MINGW_CHOST, MINGW_PREFIX
+
+### Changed
+- Update to ruby-2.5.9, see [release notes](https://www.ruby-lang.org/en/news/2021/04/05/ruby-2-5-9-released/).
+- Update to OpenSSL-1.1.1k .
+- Update of the SSL CA certificate list.
+- ridk version: Avoid possible crash due to invalid encoding. #208
+- Install pkgconf instead of pkg-config on x86_64 following the change of MSYS2.
+- Avoid creation of .irbrc if directory isn't writeable. #212
+- Update the pacman repos in part 2 in addition to part 1. #220
+
+
 ## RubyInstaller-2.5.8-2 - 2020-10-06
 
 ### Added
diff --git a/CHANGELOG-2.6.md b/CHANGELOG-2.6.md
index f7fc278b1..b73f767eb 100644
--- a/CHANGELOG-2.6.md
+++ b/CHANGELOG-2.6.md
@@ -1,3 +1,18 @@
+## RubyInstaller-2.6.7-1 - 2020-04-19
+
+### Added
+- Add more environment variables needed for configure scripts: MSYSTEM_PREFIX, MSYSTEM_CARCH, MSYSTEM_CHOST, MINGW_CHOST, MINGW_PREFIX
+
+### Changed
+- Update to ruby-2.6.7, see [release notes](https://www.ruby-lang.org/en/news/2021/04/05/ruby-2-6-7-released/).
+- Update to OpenSSL-1.1.1k .
+- Update of the SSL CA certificate list.
+- ridk version: Avoid possible crash due to invalid encoding. #208
+- Install pkgconf instead of pkg-config on x86_64 following the change of MSYS2.
+- Avoid creation of .irbrc if directory isn't writeable. #212
+- Update the pacman repos in part 2 in addition to part 1. #220
+
+
 ## RubyInstaller-2.6.6-2 - 2020-10-06
 
 ### Added
diff --git a/CHANGELOG-2.7.md b/CHANGELOG-2.7.md
index 527880f2e..b6db2fb4f 100644
--- a/CHANGELOG-2.7.md
+++ b/CHANGELOG-2.7.md
@@ -1,3 +1,18 @@
+## RubyInstaller-2.7.3-1 - 2020-04-19
+
+### Added
+- Add more environment variables needed for configure scripts: MSYSTEM_PREFIX, MSYSTEM_CARCH, MSYSTEM_CHOST, MINGW_CHOST, MINGW_PREFIX
+
+### Changed
+- Update to ruby-2.7.3, see [release notes](https://www.ruby-lang.org/en/news/2021/04/05/ruby-2-7-3-released/).
+- Update to OpenSSL-1.1.1k .
+- Update of the SSL CA certificate list.
+- ridk version: Avoid possible crash due to invalid encoding. #208
+- Install pkgconf instead of pkg-config on x86_64 following the change of MSYS2.
+- Avoid creation of .irbrc if directory isn't writeable. #212
+- Update the pacman repos in part 2 in addition to part 1. #220
+
+
 ## RubyInstaller-2.7.2-1 - 2020-10-06
 
 ### Added
diff --git a/CHANGELOG-3.0.md b/CHANGELOG-3.0.md
index 1527099cc..091f81640 100644
--- a/CHANGELOG-3.0.md
+++ b/CHANGELOG-3.0.md
@@ -1,3 +1,18 @@
+## RubyInstaller-3.0.1-1 - 2020-04-19
+
+### Added
+- Add more environment variables needed for configure scripts: MSYSTEM_PREFIX, MSYSTEM_CARCH, MSYSTEM_CHOST, MINGW_CHOST, MINGW_PREFIX
+
+### Changed
+- Update to ruby-3.0.1, see [release notes](https://www.ruby-lang.org/en/news/2021/04/05/ruby-3-0-1-released/).
+- Update to OpenSSL-1.1.1k .
+- Update of the SSL CA certificate list.
+- ridk version: Avoid possible crash due to invalid encoding. #208
+- Install pkgconf instead of pkg-config on x86_64 following the change of MSYS2.
+- Avoid creation of .irbrc if directory isn't writeable. #212
+- Update the pacman repos in part 2 in addition to part 1. #220
+
+
 ## RubyInstaller-3.0.0-1 - 2020-12-28
 
 This is the first release based on ruby-3.0.0: https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-released/