diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a4df57..f4081fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ 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).
 
 ## [Unreleased]
+### Changed
+ - Micro-optimizations in string and XML manipulations
 
 ## [6.0.0] - 2018-10-18
 ### Added