[gdm] NEWS: update for release

[Ray Strode <halfline src gnome org>]

commit 1950d8504f6e77f8944a5e6a127f34acc0847153
Author: Ray Strode <rstrode redhat com>
Date:   Wed Dec 17 12:14:40 2014 -0500

    NEWS: update for release

 NEWS |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index 8771231..85391ff 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,12 @@
 ===============
+Version 3.15.3
+===============
+- set XDG_SESSION_TYPE in user sessions
+- propagate XDG_CONFIG_DIRS and XCURSOR_PATH into login sessions
+- Require plymouth if using systemd
+- Translation updates
+
+===============
 Version 3.15.2
 ===============
 - Fix session selection for smartcard users.