diff --git a/etc/NEWS b/etc/NEWS
index bac7333110e..d50b9cc4029 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -630,6 +630,8 @@ specifies what to do when a buffer is visited, killed, or written.
 
 +++
 ** Archive Mode has basic support to browse Rar archives.
+Note, however, that the free version of the unrar command only handles
+versions 1 and 2 of the Rar format.
 
 ** BibTeX mode