diff --git a/CHANGES.md b/CHANGES.md
index 1fdc1469f20..fd2ebc15174 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -83,6 +83,9 @@ Unreleased
   possible to use library dependencies shadowed by local modules (#3825,
   @rgrinberg)
 
+- Allow (formatting ...) field in (env ...) stanza to set per-directory
+  formatting specification. (#3942, @nojb)
+
 2.7.1 (2/09/2020)
 -----------------