diff --git a/LICENSE b/LICENSE
index 22cd440..e6da715 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 1.6.0beta18, March 10, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.0beta18, March 16, 2012, are
 Copyright (c) 2004, 2006-2011 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 10, 2012
+March 16, 2012
diff --git a/README b/README
index 22d3395..4474c68 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.0beta18 - March 10, 2012 (shared library 16.0)
+README for libpng version 1.6.0beta18 - March 16, 2012 (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 b7832e3..8c1d448 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 1.6.0beta18 - March 10, 2012
+ libpng version 1.6.0beta18 - March 16, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.0beta18 - March 10, 2012
+ libpng versions 0.97, January 1998, through 1.6.0beta18 - March 16, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -5003,7 +5003,7 @@
 
 XVI. Y2K Compliance in libpng
 
-March 10, 2012
+March 16, 2012
 
 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 6aa3def..65737bb 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "March 10, 2012"
+.TH LIBPNG 3 "March 16, 2012"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.0beta18
 .SH SYNOPSIS
@@ -1007,7 +1007,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.0beta18 - March 10, 2012
+ libpng version 1.6.0beta18 - March 16, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -1018,7 +1018,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.0beta18 - March 10, 2012
+ libpng versions 0.97, January 1998, through 1.6.0beta18 - March 16, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -6011,7 +6011,7 @@
 
 .SH XVI. Y2K Compliance in libpng
 
-March 10, 2012
+March 16, 2012
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -6279,7 +6279,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.6.0beta18 - March 10, 2012:
+Libpng version 1.6.0beta18 - March 16, 2012:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -6302,7 +6302,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.6.0beta18, March 10, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.0beta18, March 16, 2012, 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
@@ -6401,7 +6401,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-March 10, 2012
+March 16, 2012
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index b940554..7fa957c 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "March 10, 2012"
+.TH LIBPNGPF 3 "March 16, 2012"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.0beta18
 (private functions)
diff --git a/png.5 b/png.5
index ad82d1a..7d35a69 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "March 10, 2012"
+.TH PNG 5 "March 16, 2012"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 951eee7..a65b39d 100644
--- a/png.c
+++ b/png.c
@@ -747,13 +747,13 @@
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.6.0beta18 - March 10, 2012" PNG_STRING_NEWLINE \
+     "libpng version 1.6.0beta18 - March 16, 2012" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2012 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 1.6.0beta18 - March 10, 2012\
+      return "libpng version 1.6.0beta18 - March 16, 2012\
       Copyright (c) 1998-2012 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 312f26b..bc0bb08 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.0beta18 - March 11, 2012
+ * libpng version 1.6.0beta18 - March 16, 2012
  * Copyright (c) 1998-2012 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 1.6.0beta18 - March 11, 2012: Glenn
+ *   libpng versions 0.97, January 1998, through 1.6.0beta18 - March 16, 2012: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -198,7 +198,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta18, March 11, 2012, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta18, March 16, 2012, are
  * Copyright (c) 2004, 2006-2012 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:
@@ -310,7 +310,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 11, 2012
+ *    March 16, 2012
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -376,7 +376,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.6.0beta18"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.6.0beta18 - March 11, 2012\n"
+     " libpng version 1.6.0beta18 - March 16, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
diff --git a/pngconf.h b/pngconf.h
index bb2ed3c..82d9a77 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.6.0beta18 - March 10, 2012
+ * libpng version 1.6.0beta18 - March 16, 2012
  *
  * Copyright (c) 1998-2012 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngset.c b/pngset.c
index 07b78c4..bde866f 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1328,6 +1328,12 @@
 {
    png_debug(1, "in png_set_benign_errors");
 
+   /* If allowed is 1, png_benign_error() is treated as a warning.
+    *
+    * If allowed is 0, png_benign_error() is treated as an error (which
+    * is the default behavior if png_set_benign_errors() is not called).
+    */
+
    if (allowed)
       png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN;
 
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 4e4633e..89204b6 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.6.0beta18 - March 10, 2012
+libpng version 1.6.0beta18 - March 16, 2012
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 60db6e2..e08f708 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.6.0beta18 - March 10, 2012
+ * libpng version 1.6.0beta18 - March 16, 2012
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index b2e7b60..722e8a3 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.6.0beta18 - March 10, 2012
+Makefiles for  libpng version 1.6.0beta18 - March 16, 2012
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile