NEWS: deprecate pre-1.4.0 Xapian

We want to give people some heads up before dropping support, since
removing a bunch of ifdefs will be a pain to revert.

diff --git a/NEWS b/NEWS
index a5eb643964dcad9b14bbcd7df45bdbae21a2260a..bc96c1b721ba0e47005ac326395b63e3b6b52c47 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,12 @@
 Notmuch 0.27 (UNRELEASED)
 =========================
 
+Dependencies
+------------
+
+As of this release, support for versions of Xapian before 1.4.0 is
+deprecated, and may disappear in a future release of notmuch.
+
 Notmuch 0.26.2 (2018-04-28)
 ===========================