diff --git a/.version b/.version
index b6d1813..372b6ea 100644
--- a/.version
+++ b/.version
@@ -1 +1,3 @@
-{"version":"v0.3.1"}
+{
+  "version": "v0.4.0"
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b29af6c..e9c3847 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,47 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.4.0] - 2026-01-09
+
+### 🚀 Features
+
+- Migrate from GitLab CI to Gitea Actions
+
+### 🚜 Refactor
+
+- Update module path to new repository location
+
+### 📚 Documentation
+
+- Add CLAUDE.md for Claude Code integration
+
+### 🧪 Testing
+
+- Add concurrent fetch and read tests for privileges
+
+### ⚙️ Miscellaneous Tasks
+
+- *(deps)* Update golang:1.25.3 docker digest to 9ac0edc
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.6.1
+- *(deps)* Update pre-commit hook gitleaks/gitleaks to v8.29.0
+- *(deps)* Update dependency go to v1.25.4
+- *(deps)* Update golang docker tag to v1.25.4
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.6.2
+- *(deps)* Update golang:1.25.4 docker digest to efe81fa
+- *(deps)* Update pre-commit hook gitleaks/gitleaks to v8.29.1
+- *(deps)* Update pre-commit hook gitleaks/gitleaks to v8.30.0
+- *(deps)* Update dependency go to v1.25.5
+- *(deps)* Update golang docker tag to v1.25.5
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.7.0
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.7.1
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.7.2
+- *(deps)* Update golang:1.25.5 docker digest to 0c27bcf
+- *(deps)* Update golang:1.25.5 docker digest to ad03ba9
+- *(deps)* Update actions/setup-go action to v6
+- *(deps)* Update actions/checkout action to v6
+- *(deps)* Update pre-commit hook golangci/golangci-lint to v2.8.0
+- Add pre-commit and release workflows
+
 ## [0.3.1] - 2025-11-02
 
 ### 🐛 Bug Fixes