[PATCH] NEWS: my changes for 0.28

[David Bremner]

I think this is all of the user (or package maintainer) visible stuff.
---
 NEWS | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/NEWS b/NEWS
index d6875dcc..fbfea956 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,29 @@
 Notmuch 0.28 (UNRELEASED)
 =========================
 
+General
+-------
+
+The threading algorithm has been updated to consider all references,
+not just the heuristically chosen parent (e.g. when that parent is not
+in the database). The heuristic for choosing a parent message has also
+been updated to again consider the In-Reply-To header, if it looks
+sensible.
+
+Build System
+------------
+
+The build system now installs notmuch-mutt and notmuch-emacs-mua with
+absolute shebangs, following the conventions of most Linux
+distributions.
+
+Test Suite
+----------
+
+Fix certain tests that were failing with GMime 2.6. Users are reminded
+that support for versions of GMime before 3.0.3 has been deprecated
+since Notmuch 0.25.
+
 Notmuch 0.27 (2018-06-13)
 =========================
 
-- 
2.19.0