maint: post-release administrivia

* NEWS: Add header line for the next release.

diff --git a/NEWS b/NEWS
index 4ffc90cbc945f82ce9665e708efee98fcd2ace5f..69f2bb5a2b065292046f9dfe0c7fac51b83faf2e 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+Noteworthy changes in release ?.?? (????-??-??)
+===============================================
+
 Noteworthy changes in release 4.12 (2016-05-31)
 ===============================================