diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3201e38..1492c32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ Note to self: See the bottom of this file for the release template text.
  - `//sculpt`: Fix undefined `default` brush
  - Commands that modify the terrain now ignore liquids
  - `//hollow`: Fix safe region bug
+ - Significant backend refactoring to tidy things up
+
 
 ## v1.13: The transformational update (2nd January 2022)
  - Add [`//sfactor`](https://worldeditadditions.mooncarrot.space/Reference/#sfactor) (_selection factor_) - Selection Tools by @VorTechnix are finished for now.