diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18e5ac720..f9c3cab4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - Unreleased
+### Changed
+- Minimum three.js version is now r166
+- Remove variety of deprecated functions.
+
 ## [0.3.46] - 2024.12.24
 ### Fixed
 - Types: Convert types of use non-wrapper types.