diff --git a/contrib/libtests/pngstest.c b/contrib/libtests/pngstest.c
index 2c6b6c531..6e17b2022 100644
--- a/contrib/libtests/pngstest.c
+++ b/contrib/libtests/pngstest.c
@@ -1,7 +1,7 @@
 /*-
  * pngstest.c
  *
- * Copyright (c) 2011 John Cunningham Bowler
+ * Copyright (c) 2012 John Cunningham Bowler
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
  *
diff --git a/contrib/libtests/pngvalid.c b/contrib/libtests/pngvalid.c
index 03a40dea0..52f893a94 100644
--- a/contrib/libtests/pngvalid.c
+++ b/contrib/libtests/pngvalid.c
@@ -2,7 +2,7 @@
 /* pngvalid.c - validate libpng by constructing then reading png files.
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 2011 Glenn Randers-Pehrson
+ * Copyright (c) 2012 Glenn Randers-Pehrson
  * Written by John Cunningham Bowler
  *
  * This code is released under the libpng license.
diff --git a/contrib/libtests/timepng.c b/contrib/libtests/timepng.c
index 68f26bab3..4d5780428 100644
--- a/contrib/libtests/timepng.c
+++ b/contrib/libtests/timepng.c
@@ -1,6 +1,6 @@
 /* timepng.c
  *
- * Copyright (c) 2011 John Cunningham Bowler
+ * Copyright (c) 2012 John Cunningham Bowler
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
  *
diff --git a/example.c b/example.c
index ad188e52b..61d9d74db 100644
--- a/example.c
+++ b/example.c
@@ -3,7 +3,7 @@
 
 /* example.c - an example of using libpng
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Maintained 1998-2011 Glenn Randers-Pehrson
+ * Maintained 1998-2012 Glenn Randers-Pehrson
  * Maintained 1996, 1997 Andreas Dilger)
  * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  * To the extent possible under law, the authors have waived
diff --git a/png.c b/png.c
index 53a465b30..84084cff5 100644
--- a/png.c
+++ b/png.c
@@ -2,7 +2,7 @@
 /* png.c - location for general purpose libpng functions
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
@@ -762,14 +762,14 @@ png_get_copyright(png_const_structrp png_ptr)
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.6.0beta05 - December 30, 2011" PNG_STRING_NEWLINE \
-     "Copyright (c) 1998-2011 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
+     "libpng version 1.6.0beta05 - January 1, 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 1.6.0beta05 - December 30, 2011\
-      Copyright (c) 1998-2011 Glenn Randers-Pehrson\
+      return "libpng version 1.6.0beta05 - January 1, 2012\
+      Copyright (c) 1998-2012 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
 #  endif
diff --git a/png.h b/png.h
index 59f19fa65..5ba563c64 100644
--- a/png.h
+++ b/png.h
@@ -1,8 +1,8 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.0beta05 - December 30, 2011
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * libpng version 1.6.0beta05 - January 1, 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 1.6.0beta05 - December 30, 2011: Glenn
+ *   libpng versions 0.97, January 1998, through 1.6.0beta05 - January 1, 2012: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -198,8 +198,8 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta05, December 30, 2011, are
- * Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
+ * libpng versions 1.2.6, August 15, 2004, through 1.6.0beta05, January 1, 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:
  * =========================
  *
- *    December 30, 2011
+ *    January 1, 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 "1.6.0beta05"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.6.0beta05 - December 30, 2011\n"
+     " libpng version 1.6.0beta05 - January 1, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
diff --git a/pngconf.h b/pngconf.h
index d26a9cc99..e5b5f3bf6 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,9 +1,9 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.6.0beta05 - December 30, 2011
+ * libpng version 1.6.0beta05 - January 1, 2012
  *
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngerror.c b/pngerror.c
index 5a5a73ab9..434495335 100644
--- a/pngerror.c
+++ b/pngerror.c
@@ -2,7 +2,7 @@
 /* pngerror.c - stub functions for i/o and memory allocation
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngget.c b/pngget.c
index 4e1df5f30..e2c9175f3 100644
--- a/pngget.c
+++ b/pngget.c
@@ -2,7 +2,7 @@
 /* pngget.c - retrieval of values from info struct
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngmem.c b/pngmem.c
index 8406a9533..b33a0a1ca 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -2,7 +2,7 @@
 /* pngmem.c - stub functions for memory allocation
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngpread.c b/pngpread.c
index 74a7e89d5..3705e411f 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -2,7 +2,7 @@
 /* pngpread.c - read a png file in push mode
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngpriv.h b/pngpriv.h
index 8d7fd0c52..adad994a0 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -2,7 +2,7 @@
 /* pngpriv.h - private declarations for use inside libpng
  *
  * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngread.c b/pngread.c
index 174298be8..b5e61e2d0 100644
--- a/pngread.c
+++ b/pngread.c
@@ -2,7 +2,7 @@
 /* pngread.c - read a PNG file
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngrio.c b/pngrio.c
index 61d1470da..4dce51219 100644
--- a/pngrio.c
+++ b/pngrio.c
@@ -2,7 +2,7 @@
 /* pngrio.c - functions for data input
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngrtran.c b/pngrtran.c
index 47720e02a..b51270fe8 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -2,7 +2,7 @@
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngrutil.c b/pngrutil.c
index 5cc2edf44..2b316f566 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -2,7 +2,7 @@
 /* pngrutil.c - utilities to read a PNG file
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngset.c b/pngset.c
index 1c6d75155..8e9389daf 100644
--- a/pngset.c
+++ b/pngset.c
@@ -2,7 +2,7 @@
 /* pngset.c - storage of image information into info struct
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngstruct.h b/pngstruct.h
index a7c475c74..9e676ac69 100644
--- a/pngstruct.h
+++ b/pngstruct.h
@@ -1,7 +1,7 @@
 
 /* pngstruct.h - header file for PNG reference library
  *
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngtest.c b/pngtest.c
index 8def6721e..30e138447 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -2,7 +2,7 @@
 /* pngtest.c - a simple test program to test libpng
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngtrans.c b/pngtrans.c
index 3eea9b421..3ff6e58d5 100644
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -2,7 +2,7 @@
 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngwio.c b/pngwio.c
index 6f8525fef..1752e1f30 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -2,7 +2,7 @@
 /* pngwio.c - functions for data output
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngwrite.c b/pngwrite.c
index 1b9d781d9..9fa5ae0ba 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -2,7 +2,7 @@
 /* pngwrite.c - general routines to write a PNG file
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngwtran.c b/pngwtran.c
index de25ef293..d3d47f3fb 100644
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -2,7 +2,7 @@
 /* pngwtran.c - transforms the data in a row for PNG writers
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/pngwutil.c b/pngwutil.c
index b3ed84f9c..35cb31e02 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -2,7 +2,7 @@
 /* pngwutil.c - utilities to write a PNG file
  *
  * Last changed in libpng 1.6.0 [(PENDING RELEASE)]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * 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.)
  *
diff --git a/scripts/options.awk b/scripts/options.awk
index 27b549a66..a8dff044a 100755
--- a/scripts/options.awk
+++ b/scripts/options.awk
@@ -1,7 +1,7 @@
 #!/bin/awk -f
 # scripts/options.awk - library build configuration control
 #
-# last changed in libpng version 1.5.7 - (PENDING RELEASE)
+# last changed in libpng version 1.5.7 - December 15, 2011
 #
 # Copyright (c) 1998-2011 Glenn Randers-Pehrson
 #
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 42300f2f1..aa64eb58f 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -3,9 +3,9 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng 1.6.0beta05 - December 30, 2011 */
+/* Libpng 1.6.0beta05 - January 1, 2012 */
 
-/* Copyright (c) 1998-2011 Glenn Randers-Pehrson */
+/* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
 
 /* This code is released under the libpng license. */
 /* For conditions of distribution and use, see the disclaimer */