diff --git a/LICENSE b/LICENSE
index 099ceca..d194f64 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 1.5.19beta03, March 17, 2014, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.19beta03, April 6, 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
-March 17, 2014
+April 6, 2014
diff --git a/README b/README
index abf86b5..81b7e3e 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.5.19beta03 - March 17, 2014 (shared library 15.0)
+README for libpng version 1.5.19beta03 - April 6, 2014 (shared library 15.0)
 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 5d0fcab..74dc79b 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 1.5.19beta03 - March 17, 2014
+ libpng version 1.5.19beta03 - April 6, 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 1.5.19beta03 - March 17, 2014
+ libpng versions 0.97, January 1998, through 1.5.19beta03 - April 6, 2014
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
@@ -3689,6 +3689,8 @@
 
     png_set_compression_method(png_ptr, method);
 
+This controls the size of the IDAT chunks (default 8192):
+
     png_set_compression_buffer_size(png_ptr, size);
 
 As of libpng version 1.5.4, additional APIs became
@@ -4150,8 +4152,6 @@
 bKGD chunk; you must check those separately to determine the maximum
 palette index actually used.
 
-A. Changes that affect users of libpng
-
 There are no substantial API changes between the non-deprecated parts of
 the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
 members of the main libpng control structures, png_struct and png_info,
@@ -4411,7 +4411,8 @@
 
 XIII. Coding style
 
-Our coding style is similar to the "Allman" style, with curly
+Our coding style is similar to the "Allman" style
+(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
 braces on separate lines:
 
     if (condition)
@@ -4530,7 +4531,7 @@
 
 XIV. Y2K Compliance in libpng
 
-March 17, 2014
+April 6, 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 fd274d9..7d9b1a6 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "March 17, 2014"
+.TH LIBPNG 3 "April 6, 2014"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.19beta03
 .SH SYNOPSIS
@@ -492,7 +492,7 @@
 .SH LIBPNG.TXT
 Libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.19beta03 - March 17, 2014
+ libpng version 1.5.19beta03 - April 6, 2014
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
@@ -503,7 +503,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.19beta03 - March 17, 2014
+ libpng versions 0.97, January 1998, through 1.5.19beta03 - April 6, 2014
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
@@ -4181,6 +4181,8 @@
 
     png_set_compression_method(png_ptr, method);
 
+This controls the size of the IDAT chunks (default 8192):
+
     png_set_compression_buffer_size(png_ptr, size);
 
 As of libpng version 1.5.4, additional APIs became
@@ -4642,8 +4644,6 @@
 bKGD chunk; you must check those separately to determine the maximum
 palette index actually used.
 
-A. Changes that affect users of libpng
-
 There are no substantial API changes between the non-deprecated parts of
 the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
 members of the main libpng control structures, png_struct and png_info,
@@ -4903,7 +4903,8 @@
 
 .SH XIII. Coding style
 
-Our coding style is similar to the "Allman" style, with curly
+Our coding style is similar to the "Allman" style
+(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly
 braces on separate lines:
 
     if (condition)
@@ -5022,7 +5023,7 @@
 
 .SH XIV. Y2K Compliance in libpng
 
-March 17, 2014
+April 6, 2014
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -5320,7 +5321,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.5.19beta03 - March 17, 2014:
+Libpng version 1.5.19beta03 - April 6, 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).
 
@@ -5343,7 +5344,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.19beta03, March 17, 2014, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.19beta03, April 6, 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
@@ -5442,7 +5443,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-March 17, 2014
+April 6, 2014
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index a454be8..238f9c7 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "March 17, 2014"
+.TH LIBPNGPF 3 "April 6, 2014"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.19beta03
 (private functions)
diff --git a/png.5 b/png.5
index f0157e4..3ab560e 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "March 17, 2014"
+.TH PNG 5 "April 6, 2014"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 8da9afe..133e68e 100644
--- a/png.c
+++ b/png.c
@@ -658,13 +658,13 @@
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.5.19beta03 - March 22, 2014" PNG_STRING_NEWLINE \
+     "libpng version 1.5.19beta03 - April 6, 2014" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
      "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
      "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
      PNG_STRING_NEWLINE;
 #  else
-      return "libpng version 1.5.19beta03 - March 22, 2014\
+      return "libpng version 1.5.19beta03 - April 6, 2014\
       Copyright (c) 1998-2014 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
diff --git a/png.h b/png.h
index 290fa37..99b482c 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.5.19beta03 - March 17, 2014
+ * libpng version 1.5.19beta03 - April 6, 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 1.5.19beta03 - March 17, 2014: Glenn
+ *   libpng versions 0.97, January 1998, through 1.5.19beta03 - April 6, 2014: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -228,7 +228,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.5.19beta03, March 17, 2014, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.19beta03, April 6, 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:
@@ -340,7 +340,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 17, 2014
+ *    April 6, 2014
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -398,7 +398,9 @@
 /* This is not the place to learn how to use libpng. The file libpng-manual.txt
  * describes how to use libpng, and the file example.c summarizes it
  * with some code on which to build.  This file is useful for looking
- * at the actual function definitions and structure components.
+ * at the actual function definitions and structure components.  If that
+ * file has been stripped from your copy of libpng, you can find it at
+ * <http://www.libpng.org/pub/png/libpng-manual.txt>
  *
  * If you just need to read a PNG file and don't want to read the documentation
  * skip to the end of this file and read the section entitled 'simplified API'.
@@ -407,7 +409,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.5.19beta03"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.5.19beta03 - March 17, 2014\n"
+     " libpng version 1.5.19beta03 - April 6, 2014\n"
 
 #define PNG_LIBPNG_VER_SONUM   15
 #define PNG_LIBPNG_VER_DLLNUM  15
diff --git a/pngconf.h b/pngconf.h
index 4f42a2d..448a129 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.5.19beta03 - March 17, 2014
+ * libpng version 1.5.19beta03 - April 6, 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 35f6c8f..5fd6aa1 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.5.19beta03 - March 17, 2014
+libpng version 1.5.19beta03 - April 6, 2014
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index dabc96f..3dbd898 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.5.19beta03 - March 17, 2014
+ * libpng version 1.5.19beta03 - April 6, 2014
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index 0d085bc..2cba739 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.5.19beta03 - March 22, 2014
+Makefiles for  libpng version 1.5.19beta03 - April 6, 2014
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 71016ae..700e633 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -1,7 +1,7 @@
 /* 1.5.19beta03 STANDARD API DEFINITION */
 /* pnglibconf.h - library build configuration */
 
-/* libpng version 1.5.19beta03 - March 22, 2014 */
+/* libpng version 1.5.19beta03 - April 6, 2014 */
 
 /* Copyright (c) 1998-2013 Glenn Randers-Pehrson */