diff --git a/etc/NEWS b/etc/NEWS
index b034dab7e61..10dddf8c84b 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -1126,6 +1126,12 @@ buffer, and you can use 'RET' to cycle outline visibility.  When
 the value is 'in-margins', Outline Minor Mode uses the window margins
 for buttons that hide/show outlines.
 
++++
+*** buttons and headings now have their own keymap.
+'outline-button-icon-map', 'outline-overlay-button-map', and
+'outline-inserted-button-map' are now available as defined keymaps
+instead of being anonymous keymaps.
+
 ** Windows
 
 +++