diff --git a/LICENSE b/LICENSE
index 0cae535..2ef8498 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 6, 2014, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 21, 2014, are
 Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -108,4 +108,4 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-April 6, 2014
+April 21, 2014
diff --git a/README b/README
index d0955f5..68275f9 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.11beta04 - April 6, 2014 (shared library 16.0)
+README for libpng version 1.6.11beta04 - April 21, 2014 (shared library 16.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/libpng-manual.txt b/libpng-manual.txt
index a84c0cf..6b06e68 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.11beta04 - April 13, 2014
+ libpng version 1.6.11beta04 - April 21, 2014
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.11beta04 - April 13, 2014
+ libpng versions 0.97, January 1998, through 1.6.11beta04 - April 21, 2014
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
@@ -5261,7 +5261,7 @@
 
 XVI. Y2K Compliance in libpng
 
-April 13, 2014
+April 21, 2014
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
diff --git a/libpng.3 b/libpng.3
index 27f0b48..d9ab5b4 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "April 13, 2014"
+.TH LIBPNG 3 "April 21, 2014"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.11beta04
 .SH SYNOPSIS
@@ -504,7 +504,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.11beta04 - April 13, 2014
+ libpng version 1.6.11beta04 - April 21, 2014
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
@@ -515,7 +515,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.11beta04 - April 13, 2014
+ libpng versions 0.97, January 1998, through 1.6.11beta04 - April 21, 2014
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
@@ -5765,7 +5765,7 @@
 
 .SH XVI. Y2K Compliance in libpng
 
-April 13, 2014
+April 21, 2014
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -6062,7 +6062,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.6.11beta04 - April 13, 2014:
+Libpng version 1.6.11beta04 - April 21, 2014:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -6085,7 +6085,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 13, 2014, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 21, 2014, are
 Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -6184,7 +6184,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-April 13, 2014
+April 21, 2014
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index e0b001c..897f56e 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "April 6, 2014"
+.TH LIBPNGPF 3 "April 21, 2014"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.11beta04
 (private functions)
diff --git a/png.5 b/png.5
index 3ab560e..e94653c 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "April 6, 2014"
+.TH PNG 5 "April 21, 2014"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.h b/png.h
index 326487c..36651b8 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.11beta04 - April 13, 2014
+ * libpng version 1.6.11beta04 - April 21, 2014
  * Copyright (c) 1998-2014 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -11,7 +11,7 @@
  * Authors and maintainers:
  *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *   libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *   libpng versions 0.97, January 1998, through 1.6.11beta04 - April 13, 2014: Glenn
+ *   libpng versions 0.97, January 1998, through 1.6.11beta04 - April 21, 2014: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -227,7 +227,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 13, 2014, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.6.11beta04, April 21, 2014, are
  * Copyright (c) 2004, 2006-2013 Glenn Randers-Pehrson, and are
  * distributed according to the same disclaimer and license as libpng-1.2.5
  * with the following individual added to the list of Contributing Authors:
@@ -339,7 +339,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    April 13, 2014
+ *    April 21, 2014
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -409,7 +409,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.6.11beta04"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.6.11beta04 - April 13, 2014\n"
+     " libpng version 1.6.11beta04 - April 21, 2014\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
diff --git a/pngconf.h b/pngconf.h
index ff00782..9fc8140 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.6.11beta04 - April 6, 2014
+ * libpng version 1.6.11beta04 - April 21, 2014
  *
  * Copyright (c) 1998-2013 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index ca029af..085b107 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.6.11beta04 - April 6, 2014
+libpng version 1.6.11beta04 - April 21, 2014
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 0566520..48dfd05 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.6.11beta04 - April 6, 2014
+ * libpng version 1.6.11beta04 - April 21, 2014
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index 1d72918..3f774ac 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.6.11beta04 - April 6, 2014
+Makefiles for  libpng version 1.6.11beta04 - April 21, 2014
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index 6325507..96bb4cd 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -578,6 +578,8 @@
 # PNG_sRGB_PROFILE_CHECKS setting controls how much work is done during the
 # check:
 #
+# -1: Don't do any sRGB profile checking.
+#
 # 0: Just validate the profile MD5 signature if present, otherwise use
 #    the checks in option 1.
 #
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 0cd5ef0..1013d33 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -2,7 +2,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng version 1.6.11beta04 - April 6, 2014 */
+/* Libpng version 1.6.11beta04 - April 21, 2014 */
 
 /* Copyright (c) 1998-2013 Glenn Randers-Pehrson */