diff --git a/.version b/.version
index 1d7a9cb..d19a958 100644
--- a/.version
+++ b/.version
@@ -1 +1,3 @@
-{"version":"1.3.18"}
+{
+  "version": "1.4.0"
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d85fd09..adfc21e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,23 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.4.0] - 2026-01-09
+
+### 🚀 Features
+
+- Migrate from GitLab CI to Gitea Actions
+- Add release workflow using shared workflow
+
+### 📚 Documentation
+
+- Add CLAUDE.md for Claude Code guidance
+
+### ⚙️ Miscellaneous Tasks
+
+- *(deps)* Update golang:1.25.5 docker digest to ad03ba9
+- *(deps)* Update actions/checkout action to v6
+- *(deps)* Update actions/setup-go action to v6
+
 ## [1.3.18] - 2025-12-18
 
 ### 🐛 Bug Fixes