Update NEWS

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
diff --git a/NEWS b/NEWS
index 93cdf6d..78015b1 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,10 @@
-libva NEWS -- summary of user visible changes.  2014-12-28
+libva NEWS -- summary of user visible changes.  2015-03-xx
 Copyright (C) 2009-2014 Intel Corporation
 
+Version 1.5.1 - DD.Mar.2015
+* API: correct the comment for num_token_partitions in struct  _VAEncPictureParameterBufferVP8
+* VA/x11: fix double Unlocks/SyncHandle to avoid segmentation fault
+
 Version 1.5.0 - 28.Dec.2014
 * API: add support for HEVC decoding
 * API: extend JPEG encoding data structures and add configuration attribute for JPEG encoding