diff --git a/LICENSE b/LICENSE
index 54b0dd98..da829538 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,8 +10,8 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.2.51beta03, June 18, 2013, are
-Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
+libpng versions 1.2.6, August 15, 2004, through 1.2.51beta03, January 1, 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
 
@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-June 18, 2013
+January 1, 2014
diff --git a/README b/README
index d01a5c3f..290d051b 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.2.51beta03 - June 18, 2013 (shared library 12.0)
+README for libpng version 1.2.51beta03 - January 1, 2014 (shared library 12.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/png.h b/png.h
index d103b4eb..72103758 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.2.51beta03 - November 28, 2013
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * libpng version 1.2.51beta03 - January 1, 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.)
  *
@@ -10,7 +10,7 @@
  * 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 1.2.51beta03 - November 28, 2013: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.51beta03 - January 1, 2014: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -316,7 +316,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.2.51beta03, November 28, 2013, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.2.51beta03, January 1, 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:
@@ -428,7 +428,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    November 28, 2013
+ *    January 1, 2014
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -492,7 +492,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.2.51beta03"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.51beta03 - November 28, 2013\n"
+   " libpng version 1.2.51beta03 - January 1, 2014\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  13
diff --git a/pngrtran.c b/pngrtran.c
index 7f0ff92e..32119209 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,8 +1,8 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * Last changed in libpng 1.2.49 [March 29, 2012]
- * Copyright (c) 1998-2012 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.51 [January 1, 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.)
  *
@@ -917,7 +917,10 @@ png_init_read_transformations(png_structp png_ptr)
     for (i=0; i<png_ptr->num_trans; i++)
     {
       if (png_ptr->trans[i] != 0 && png_ptr->trans[i] != 0xff)
+      {
         k=1; /* Partial transparency is present */
+        break;
+      }
     }
     if (k == 0)
       png_ptr->transformations &= ~PNG_GAMMA;
diff --git a/pngset.c b/pngset.c
index a865e37c..ad1270fa 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,8 +1,8 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * Last changed in libpng 1.2.51 [June 18, 2013]
- * Copyright (c) 1998-2013 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.51 [January 1, 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.)
  *