diff --git a/NEWS b/NEWS
index 47654e49a..314dc6a79 100644
--- a/NEWS
+++ b/NEWS
@@ -39,6 +39,13 @@ because a local `_' definition would prevent `_' from being recognized
 as aux syntax for `match', `syntax-rules', and similar.  The new
 recommended conventional alias for `gettext' is `G_'.
 
+** Add --r6rs command-line option
+
+The new `install-r6rs!' procedure adapts Guile's defaults to be more
+R6RS-compatible.  This procedure is called if the user passes `--r6rs'
+as a command-line argument.  See "R6RS Incompatibilities" in the manual,
+for full details.
+
 
 
 Changes in alpha 2.9.x (since the stable 2.2 series):