[gegl] NEWS: update

[Øyvind Kolås <ok src gnome org>]

commit 7195038027022a9ee6ba571f57e8181288c46bb7
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Nov 11 23:05:54 2017 +0100

    NEWS: update

 docs/NEWS.txt |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/docs/NEWS.txt b/docs/NEWS.txt
index 3c8067e..cbf907f 100644
--- a/docs/NEWS.txt
+++ b/docs/NEWS.txt
@@ -4,6 +4,8 @@ GEGL-0.3.22 2017-11-
 Core
 ~~~~
 
+Refactored graph traversals to use topological sorts.
+
 Reduced temporary buffer allocation overhead in mipmap downscaling and
 autothreading code.
 
@@ -14,9 +16,6 @@ Migrated from intltool to GNU gettext
 
 Replace custom property redirection for meta-ops with GBinding.
 
-Make more use of visitors of the graph, removing exponential overhead for some
-graphs.
-
 Buffer
 ~~~~~~