diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26cdced..8ece2b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v0.4.0
+
+- Use Go 1.23.
+- Switch to GitHub Actions for CI.
+- Bump license year.
+
 ## v0.3.0
 
 - Do not prefix/suffix comment with whitespace.
@@ -23,4 +29,4 @@
 
 ## v0.0.1
 
-- Initial release.
\ No newline at end of file
+- Initial release.