diff --git a/etc/NEWS b/etc/NEWS
index 45d4e505647..1fd2a00b3f9 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -629,6 +629,12 @@ changing and reversing the layout of side windows and returning the main
 (major non-side) window of a frame are provided.  For details consult
 the section "Side Windows" in the Elisp manual.
 
++++
+*** Support for atomic windows - rectangular compositions of windows
+treated by `split-window', `delete-window' and `delete-other-windows'
+like a single live window - is now official.  For details consult the
+section "Atomic Windows" in the Elisp manual.
+
 +++
 *** New `display-buffer' alist entry `window-parameters' allows to
 assign window parameters to the window used for displaying the buffer.