Release v1.6.0 Khaki Campbell Duck

Change-Id: I08da365dd889093f9919476a02ee96ae9615f140
diff --git a/.mailmap b/.mailmap
index 4672e5c..94cb1ec 100644
--- a/.mailmap
+++ b/.mailmap
@@ -3,6 +3,7 @@
 Aℓex Converse <aconverse@google.com> <alex.converse@gmail.com>
 Alexis Ballier <aballier@gentoo.org> <alexis.ballier@gmail.com>
 Alpha Lam <hclam@google.com> <hclam@chromium.org>
+Daniele Castagna <dcastagna@chromium.org> <dcastagna@google.com>
 Deb Mukherjee <debargha@google.com>
 Erik Niemeyer <erik.a.niemeyer@intel.com> <erik.a.niemeyer@gmail.com>
 Guillaume Martres <gmartres@google.com> <smarter3@gmail.com>
@@ -13,12 +14,15 @@
 Johann Koenig <johannkoenig@google.com>
 Johann Koenig <johannkoenig@google.com> <johann.koenig@duck.com>
 Johann Koenig <johannkoenig@google.com> <johann.koenig@gmail.com>
+Johann Koenig <johannkoenig@google.com> <johannkoenig@chromium.org>
 John Koleszar <jkoleszar@google.com>
 Joshua Litt <joshualitt@google.com> <joshualitt@chromium.org>
 Marco Paniconi <marpan@google.com>
 Marco Paniconi <marpan@google.com> <marpan@chromium.org>
 Pascal Massimino <pascal.massimino@gmail.com>
 Paul Wilkins <paulwilkins@google.com>
+Peter de Rivaz <peter.derivaz@gmail.com>
+Peter de Rivaz <peter.derivaz@gmail.com> <peter.derivaz@argondesign.com>
 Ralph Giles <giles@xiph.org> <giles@entropywave.com>
 Ralph Giles <giles@xiph.org> <giles@mozilla.com>
 Ronald S. Bultje <rsbultje@gmail.com> <rbultje@google.com>
@@ -26,7 +30,8 @@
 Tamar Levy <tamar.levy@intel.com>
 Tamar Levy <tamar.levy@intel.com> <levytamar82@gmail.com>
 Tero Rintaluoma <teror@google.com> <tero.rintaluoma@on2.com>
-Timothy B. Terriberry <tterribe@xiph.org> Tim Terriberry <tterriberry@mozilla.com>
+Timothy B. Terriberry <tterribe@xiph.org> <tterriberry@mozilla.com>
 Tom Finegan <tomfinegan@google.com>
 Tom Finegan <tomfinegan@google.com> <tomfinegan@chromium.org>
 Yaowu Xu <yaowu@google.com> <yaowu@xuyaowu.com>
+Yaowu Xu <yaowu@google.com> <Yaowu Xu>
diff --git a/AUTHORS b/AUTHORS
index f89b677..fcd5c53 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -24,6 +24,7 @@
 Charles 'Buck' Krasic <ckrasic@google.com>
 chm <chm@rock-chips.com>
 Christian Duvivier <cduvivier@google.com>
+Daniele Castagna <dcastagna@chromium.org>
 Daniel Kang <ddkang@google.com>
 Deb Mukherjee <debargha@google.com>
 Dim Temp <dimtemp0@gmail.com>
@@ -56,10 +57,12 @@
 Jan Gerber <j@mailb.org>
 Jan Kratochvil <jan.kratochvil@redhat.com>
 Janne Salonen <jsalonen@google.com>
+Jean-Yves Avenard <jyavenard@mozilla.com>
 Jeff Faust <jfaust@google.com>
 Jeff Muizelaar <jmuizelaar@mozilla.com>
 Jeff Petkau <jpet@chromium.org>
 Jia Jia <jia.jia@linaro.org>
+Jian Zhou <zhoujian@google.com>
 Jim Bankoski <jimbankoski@google.com>
 Jingning Han <jingning@google.com>
 Joey Parrish <joeyparrish@google.com>
@@ -74,6 +77,7 @@
 Justin Lebar <justin.lebar@gmail.com>
 KO Myung-Hun <komh@chollian.net>
 Lawrence Velázquez <larryv@macports.org>
+Linfeng Zhang <linfengz@google.com>
 Lou Quillio <louquillio@google.com>
 Luca Barbato <lu_zero@gentoo.org>
 Makoto Kato <makoto.kt@gmail.com>
@@ -107,9 +111,11 @@
 Ronald S. Bultje <rsbultje@gmail.com>
 Rui Ueyama <ruiu@google.com>
 Sami Pietilä <samipietila@google.com>
+Sasi Inguva <isasi@google.com>
 Scott Graham <scottmg@chromium.org>
 Scott LaVarnway <slavarnway@google.com>
 Sean McGovern <gseanmcg@gmail.com>
+Sergey Kolomenkin <kolomenkin@gmail.com>
 Sergey Ulanov <sergeyu@chromium.org>
 Shimon Doodkin <helpmepro1@gmail.com>
 Shunyao Li <shunyaoli@google.com>
@@ -126,8 +132,10 @@
 Tom Finegan <tomfinegan@google.com>
 Vignesh Venkatasubramanian <vigneshv@google.com>
 Yaowu Xu <yaowu@google.com>
+Yi Luo <luoyi@google.com>
 Yongzhe Wang <yongzhe@google.com>
 Yunqing Wang <yunqingwang@google.com>
+Yury Gitman <yuryg@google.com>
 Zoe Liu <zoeliu@google.com>
 Google Inc.
 The Mozilla Foundation
diff --git a/CHANGELOG b/CHANGELOG
index 7db420e..795d395 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,32 @@
-Next Release
-  - Incompatible changes:
-    The VP9 encoder's default keyframe interval changed to 128 from 9999.
+2016-07-20 v1.6.0 "Khaki Campbell Duck"
+  This release improves upon the VP9 encoder and speeds up the encoding and
+  decoding processes.
+
+  - Upgrading:
+    This release is ABI incompatible with 1.5.0 due to a new 'color_range' enum
+    in vpx_image and some minor changes to the VP8_COMP structure.
+
+    The default key frame interval for VP9 has changed from 128 to 9999.
+
+  - Enhancement:
+    A core focus has been performance for low end Intel processors. SSSE3
+    instructions such as 'pshufb' have been avoided and instructions have been
+    reordered to better accommodate the more constrained pipelines.
+
+    As a result, devices based on Celeron processors have seen substantial
+    decoding improvements. From Indian Runner Duck to Javan Whistling Duck,
+    decoding speed improved between 10 and 30%. Between Javan Whistling Duck
+    and Khaki Campbell Duck, it improved another 10 to 15%.
+
+    While Celeron benefited most, Core-i5 also improved 5% and 10% between the
+    respective releases.
+
+    Realtime performance for WebRTC for both speed and quality has received a
+    lot of attention.
+
+  - Bug Fixes:
+    A number of fuzzing issues, found variously by Mozilla, Chromium and others,
+    have been fixed and we strongly recommend updating.
 
 2015-11-09 v1.5.0 "Javan Whistling Duck"
   This release improves upon the VP9 encoder and speeds up the encoding and
diff --git a/README b/README
index 29072b9..a8e6aeb 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README - 23 March 2015
+README - 20 July 2016
 
 Welcome to the WebM VP8/VP9 Codec SDK!
 
diff --git a/libs.mk b/libs.mk
index ededde8..9a6092a 100644
--- a/libs.mk
+++ b/libs.mk
@@ -229,7 +229,7 @@
 LIBS-$(if yes,$(CONFIG_STATIC)) += $(BUILD_PFX)libvpx.a $(BUILD_PFX)libvpx_g.a
 $(BUILD_PFX)libvpx_g.a: $(LIBVPX_OBJS)
 
-SO_VERSION_MAJOR := 3
+SO_VERSION_MAJOR := 4
 SO_VERSION_MINOR := 0
 SO_VERSION_PATCH := 0
 ifeq ($(filter darwin%,$(TGT_OS)),$(TGT_OS))