diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3781126..8bd1bdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 --------------------------------------------------------------------------------
 
-## [Unreleased]
+## [0.4.0] - 2026-01-17
 
 ### Added
 
diff --git a/src/lib.luau b/src/lib.luau
index 3312f26..28784b4 100644
--- a/src/lib.luau
+++ b/src/lib.luau
@@ -1,4 +1,4 @@
-local version = { major = 0, minor = 3, patch = 1 }
+local version = { major = 0, minor = 4, patch = 0 }
 
 local root = require "./root"
 local branch = require "./branch"