diff --git a/_data/downloads.yml b/_data/downloads.yml
index ec9404ec52..9788b90ca8 100644
--- a/_data/downloads.yml
+++ b/_data/downloads.yml
@@ -7,7 +7,7 @@ preview:
 
 stable:
 
-  - 3.4.2
+  - 3.4.3
   - 3.3.8
   - 3.2.8
 
diff --git a/_data/releases.yml b/_data/releases.yml
index b00aa72721..a32e25b17d 100644
--- a/_data/releases.yml
+++ b/_data/releases.yml
@@ -21,6 +21,30 @@
 
 # 3.4 series
 
+- version: 3.4.3
+  date: 2025-04-14
+  post: /en/news/2025/04/14/ruby-3-4-3-released/
+  url:
+    gz:  https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.3.tar.gz
+    zip: https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.3.zip
+    xz:  https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.3.tar.xz
+  size:
+    gz:  23194448
+    zip: 28356998
+    xz:  17230984
+  sha1:
+    gz:  c269cd122ab9d4620a1e0e6a8f4de378deec3799
+    zip: 87cb747a766660cf487a2e9dbbc7a18a8f6b65d9
+    xz:  d0d86fdfe6bcf9f2eb3b450f3209f655ceda86da
+  sha256:
+    gz:  55a4cd1dcbe5ca27cf65e89a935a482c2bb2284832939266551c0ec68b437f46
+    zip: 06b8bf2ddf2642327c992d30f5d414ffa5a5df0c4c706d7b2507b42509fb5055
+    xz:  174dcd8c516694f833fd3c93ea227fa6c3321464577a3882a6fc7e4fe20237fd
+  sha512:
+    gz:  7019889939713c3e649003fed4d973dced36239fc354cfdee2d01dbdeb7e8512881a31b00efc3d5017f08cd492aed7914d15927bc8d076c0cae7534273e471e9
+    zip: b25289c899318ce5071b075fc1b75f602e0a543faeefa44df7e8064933500f9c357685fe21d09abc4034d481c22c89491c841f596d07e1cd269d800e6266cc24
+    xz:  b30aad675cdcc1bdfe9e5fffe9d1925db3b3ac854a5e34180c368bc6e66f73e29ba5d802fea249353b7d799c01384c58bdd763fd1b679303158baa7824b9c08e
+
 - version: 3.4.2
   date: 2025-02-14
   post: /en/news/2025/02/14/ruby-3-4-2-released/
diff --git a/en/news/_posts/2025-04-14-ruby-3-4-3-released.md b/en/news/_posts/2025-04-14-ruby-3-4-3-released.md
new file mode 100644
index 0000000000..f8f969291b
--- /dev/null
+++ b/en/news/_posts/2025-04-14-ruby-3-4-3-released.md
@@ -0,0 +1,50 @@
+---
+layout: news_post
+title: "Ruby 3.4.3 Released"
+author: k0kubun
+translator:
+date: 2025-04-14 08:06:57 +0000
+lang: en
+---
+
+Ruby 3.4.3 has been released.
+
+Please see the [GitHub releases](https://github.com/ruby/ruby/releases/tag/v3_4_3) for further details.
+[release notes on GitHub](https://github.com/ruby/ruby/releases/tag/v3_4_3) for further details.
+
+## Release Schedule
+
+We intend to release the latest stable Ruby version (currently Ruby 3.4) every 2 months.
+Ruby 3.4.4 will be released in June, 3.4.5 in August, 3.4.6 in October, and 3.4.7 in December.
+
+If there's any change that affects a considerable amount of people, those versions may be released earlier than expected.
+
+## Download
+
+{% assign release = site.data.releases | where: "version", "3.4.3" | first %}
+
+* <{{ release.url.gz }}>
+
+      SIZE: {{ release.size.gz }}
+      SHA1: {{ release.sha1.gz }}
+      SHA256: {{ release.sha256.gz }}
+      SHA512: {{ release.sha512.gz }}
+
+* <{{ release.url.xz }}>
+
+      SIZE: {{ release.size.xz }}
+      SHA1: {{ release.sha1.xz }}
+      SHA256: {{ release.sha256.xz }}
+      SHA512: {{ release.sha512.xz }}
+
+* <{{ release.url.zip }}>
+
+      SIZE: {{ release.size.zip }}
+      SHA1: {{ release.sha1.zip }}
+      SHA256: {{ release.sha256.zip }}
+      SHA512: {{ release.sha512.zip }}
+
+## Release Comment
+
+Many committers, developers, and users who provided bug reports helped us make this release.
+Thanks for their contributions.