diff --git a/CHANGELOG.md b/CHANGELOG.md
index 709866457..a53df5cf6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 - Add point size option for scatter charts
 - Basic support for Xlsx reading/writing Chart Sheets [PR #2830](https://github.com/PHPOffice/PhpSpreadsheet/pull/2830)
 
+  Note that a ChartSheet is still only written as a normal Worksheet containing a single chart, not as an actual ChartSheet.
+
 ### Changed
 
 - Memory and speed improvements, particularly for the Cell Collection, and the Writers.