[gdm] NEWS: update for release

[Ray Strode <halfline src gnome org>]

commit 22c3d774e2f02a1ee2b8a39f1fc06f2602680236
Author: Ray Strode <rstrode redhat com>
Date:   Thu Jan 5 13:20:17 2017 -0500

    NEWS: update for release

 NEWS |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index bcad374..21e77b2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,13 @@
 ==============
+Version 3.23.4
+==============
+- Make X11DisplayName property accurate
+- Fix bug that forced wayland on second logins even if user didn't pick it
+- kill clients from display on logout (multiseat and xdmcp only)
+- send hangup to process group when session exits
+- allow specifying pam_gdm install location to configure
+
+==============
 Version 3.22.1
 ==============
 - Fix wayland login after Xorg logout for a user