Issue #21138: Change default reformat paragraph width to PEP 8's 72.
diff --git a/Misc/NEWS b/Misc/NEWS
index 89167fb..8f424ff 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -289,7 +289,9 @@
 IDLE
 ----
 
-- Issue 21284: Paragraph reformat test passes after user changes reformat width.
+- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation.
+
+- Issue #21284: Paragraph reformat test passes after user changes reformat width.
 
 - Issue #20406: Use Python application icons for Idle window title bars.
   Patch mostly by Serhiy Storchaka.