Prepare for 4.22 release

* NEWS: Update for 4.22 release.

diff --git a/NEWS b/NEWS
index f1816fb1c7a799681020adb64da924b528cff074..f1035c7cfe34745b66c682b3c53e33335cd61187 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-Noteworthy changes in release ?.?? (????-??-??)
+Noteworthy changes in release 4.22 (2018-04-05)
 ===============================================
 
 * Changes in infrastructure