diff --git a/ANNOUNCE b/ANNOUNCE
index 9041246..8f3385a 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.6.0beta03 - December 21, 2011
+Libpng 1.6.0beta03 - December 22, 2011
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -59,7 +59,7 @@
     The include path of 'config.h' was erroneously made relative in pngvalid.c
     in libpng 1.5.7.
 
-Version 1.6.0beta03 [December 21, 2011]
+Version 1.6.0beta03 [December 22, 2011]
   Start-up code size improvements, error handler flexibility. These changes
     alter how the tricky allocation of the initial png_struct and png_info
     structures are handled. png_info is now handled in pretty much the same
diff --git a/CHANGES b/CHANGES
index c4a6b9d..d50b6e9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3810,7 +3810,7 @@
     The include path of 'config.h' was erroneously made relative in pngvalid.c
     in libpng 1.5.7.
 
-Version 1.6.0beta03 [December 21, 2011]
+Version 1.6.0beta03 [December 22, 2011]
   Start-up code size improvements, error handler flexibility. These changes
     alter how the tricky allocation of the initial png_struct and png_info
     structures are handled. png_info is now handled in pretty much the same
diff --git a/LICENSE b/LICENSE
index e49014b..afc0c3e 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 1.6.0beta03, December 21, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.0beta03, December 22, 2011, 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
-December 21, 2011
+December 22, 2011
diff --git a/README b/README
index 9c68ad2..8a08a40 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.0beta03 - December 21, 2011 (shared library 16.0)
+README for libpng version 1.6.0beta03 - December 22, 2011 (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/contrib/libtests/pngvalid.c b/contrib/libtests/pngvalid.c
index a22d4db..fc780a0 100644
--- a/contrib/libtests/pngvalid.c
+++ b/contrib/libtests/pngvalid.c
@@ -3887,6 +3887,9 @@
    {
       png_const_charp correct = "29 Aug 2079 13:53:60 +0000";
       png_const_charp result;
+#     if PNG_LIBPNG_VER >= 10600
+         char timestring[29];
+#     endif
       png_structp pp;
       png_time pt;
 
@@ -3904,7 +3907,15 @@
       pt.minute = 53;
       pt.second = 60; /* a leap second */
 
-      result = png_convert_to_rfc1123(pp, &pt);
+#     if PNG_LIBPNG_VER < 10600
+         result = png_convert_to_rfc1123(pp, &pt);
+#     else
+         if (png_convert_to_rfc1123_buffer(timestring, &pt))
+            result = timestring;
+
+         else
+            result = NULL;
+#     endif
 
       if (result == NULL)
          png_error(pp, "png_convert_to_rfc1123 failed");
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 87f7617..e79740c 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 1.6.0beta03 - December 21, 2011
+ libpng version 1.6.0beta03 - December 22, 2011
  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 1.6.0beta03 - December 21, 2011
+ libpng versions 0.97, January 1998, through 1.6.0beta03 - December 22, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -4573,7 +4573,7 @@
 
 XIV. Y2K Compliance in libpng
 
-December 21, 2011
+December 22, 2011
 
 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 c71b348..06ae539 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "December 21, 2011"
+.TH LIBPNG 3 "December 22, 2011"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.0beta03
 .SH SYNOPSIS
@@ -1007,7 +1007,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.0beta03 - December 21, 2011
+ libpng version 1.6.0beta03 - December 22, 2011
  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 1.6.0beta03 - December 21, 2011
+ libpng versions 0.97, January 1998, through 1.6.0beta03 - December 22, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -5581,7 +5581,7 @@
 
 .SH XIV. Y2K Compliance in libpng
 
-December 21, 2011
+December 22, 2011
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -5850,7 +5850,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.6.0beta03 - December 21, 2011:
+Libpng version 1.6.0beta03 - December 22, 2011:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -5873,7 +5873,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.6.0beta03, December 21, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.6.0beta03, December 22, 2011, 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
@@ -5972,7 +5972,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-December 21, 2011
+December 22, 2011
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index f38a705..bad252c 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "December 21, 2011"
+.TH LIBPNGPF 3 "December 22, 2011"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.0beta03
 (private functions)
diff --git a/png.5 b/png.5
index d325601..a2934e0 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "December 21, 2011"
+.TH PNG 5 "December 22, 2011"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index eb0ab11..02aa3cc 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.6.0beta03 - December 21, 2011
+libpng version 1.6.0beta03 - December 22, 2011
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 6d75b74..56ce388 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.6.0beta03 - December 21, 2011
+ * libpng version 1.6.0beta03 - December 22, 2011
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *