diff --git a/CHANGES b/CHANGES
index 541cfff94..f79253820 100644
--- a/CHANGES
+++ b/CHANGES
@@ -84,6 +84,7 @@ Features added
 * #6212 autosummary: Add :confval:`autosummary_imported_members` to display
   imported members on autosummary
 * #6271: ``make clean`` is catastrophically broken if building into '.'
+* #6363: Support ``%O%`` environment variable in make.bat
 * #4777: py domain: Add ``:async:`` option to :rst:dir:`py:function` directive
 * py domain: Add new options to :rst:dir:`py:method` directive