version 4.18.0

* NEWS: Record release date.

Signed-off-by: Simon Josefsson <simon@josefsson.org>
diff --git a/NEWS b/NEWS
index d07f6db..bf7aa0f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU Libtasn1 NEWS                                     -*- outline -*-
 
-* Noteworthy changes in release ?.? (????-??-??) [?]
+* Noteworthy changes in release 4.18.0 (2021-11-09) [stable]
 - Improve GTK-DOC manual.  Closes: #35.
 - Improve --help and --version for tools with gnulib.  Closes: #37.
 - Update gnulib files and various maintenance fixes.