diff --git a/etc/NEWS b/etc/NEWS
index 0388cca97aa..57f04609679 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -134,8 +134,12 @@ transform function 'project-uniquify-dirname-transform'.
 The code that allowed "..." to be expanded in the "*Backtrace*" buffer
 should now work anywhere the data is generated by 'cl-print'.
 
+*** The 'backtrace-ellipsis' button is replaced by 'cl-print-ellipsis'.
+
 *** hash-tables' contents can be expanded via the ellipsis.
 
+*** Modes can control the expansion via 'cl-print-expand-ellipsis-function'.
+
 ** Modeline elements can now be right-aligned.
 Anything following the symbol 'mode-line-format-right-align' in
 'mode-line-format' will be right-aligned.  Exactly where it is