diff -ru4NwbB libpng-1.2.49/png.h libpng-1.2.50/png.h
--- libpng-1.2.49/png.h	2012-03-28 23:52:36.975869592 -0500
+++ libpng-1.2.50/png.h	2012-07-09 19:36:56.905164590 -0500
@@ -281,8 +281,10 @@
  *    1.2.48                  13    10248  12.so.0.48[.0]
  *    1.2.49rc01              13    10249  12.so.0.49[.0]
  *    1.0.59                  10    10059  10.so.0.59[.0]
  *    1.2.49                  13    10249  12.so.0.49[.0]
+ *    1.0.60                  10    10060  10.so.0.60[.0]
+ *    1.2.50                  13    10250  12.so.0.50[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
  *    used for changes in backward compatibility, as it is intended.  The
diff -ru4NwbB libpng-1.2.49/pnggccrd.c libpng-1.2.50/pnggccrd.c
--- libpng-1.2.49/pnggccrd.c	2012-03-28 23:52:37.013239753 -0500
+++ libpng-1.2.50/pnggccrd.c	2012-07-09 19:36:56.943028430 -0500
@@ -1,7 +1,7 @@
 /* pnggccrd.c
  *
- * Last changed in libpng 1.2.48 [July 10, 2012]
+ * Last changed in libpng 1.2.48 [March 8, 2012]
  * Copyright (c) 1998-2012 Glenn Randers-Pehrson
  *
  * This code is released under the libpng license.
  * For conditions of distribution and use, see the disclaimer
diff -ru4NwbB libpng-1.2.49/pngread.c libpng-1.2.50/pngread.c
--- libpng-1.2.49/pngread.c	2012-03-28 23:52:37.046543302 -0500
+++ libpng-1.2.50/pngread.c	2012-07-09 19:36:56.974932198 -0500
@@ -1,8 +1,8 @@
 
 /* pngread.c - read a PNG file
  *
- * Last changed in libpng 1.2.48 [July 10, 2012]
+ * Last changed in libpng 1.2.48 [March 8, 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.)
  *
diff -ru4NwbB libpng-1.2.49/pngrtran.c libpng-1.2.50/pngrtran.c
--- libpng-1.2.49/pngrtran.c	2012-03-28 23:52:37.074448122 -0500
+++ libpng-1.2.50/pngrtran.c	2012-07-09 19:36:56.996883555 -0500
@@ -1,9 +1,9 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * Last changed in libpng 1.2.45 [July 7, 2011]
- * Copyright (c) 1998-2011 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.49 [March 29, 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.)
  *
  * This code is released under the libpng license.
diff -ru4NwbB libpng-1.2.49/pngrutil.c libpng-1.2.50/pngrutil.c
--- libpng-1.2.49/pngrutil.c	2012-03-28 23:52:37.088480986 -0500
+++ libpng-1.2.50/pngrutil.c	2012-07-09 19:36:57.011011459 -0500
@@ -1,8 +1,8 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.2.48 [July 10, 2012]
+ * Last changed in libpng 1.2.48 [March 8, 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.)
  *
diff -ru4NwbB libpng-1.2.49/pngset.c libpng-1.2.50/pngset.c
--- libpng-1.2.49/pngset.c	2012-03-28 23:52:37.097178174 -0500
+++ libpng-1.2.50/pngset.c	2012-07-09 19:36:57.019705149 -0500
@@ -1,9 +1,9 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * Last changed in libpng 1.2.43 [February 25, 2010]
- * Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ * Last changed in libpng 1.2.49 [March 29, 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.)
  *
  * This code is released under the libpng license.
diff -ru4NwbB libpng-1.2.49/pngvcrd.c libpng-1.2.50/pngvcrd.c
--- libpng-1.2.49/pngvcrd.c	2012-03-28 23:52:37.119161084 -0500
+++ libpng-1.2.50/pngvcrd.c	2012-07-09 19:36:57.041828987 -0500
@@ -1,7 +1,7 @@
 /* pngvcrd.c
  *
- * Last changed in libpng 1.2.48 [July 10, 2012]
+ * Last changed in libpng 1.2.48 [March 8, 2012]
  * Copyright (c) 1998-2012 Glenn Randers-Pehrson
  *
  * This code is released under the libpng license.
  * For conditions of distribution and use, see the disclaimer
diff -ru4NwbB libpng-1.2.49/projects/xcode/libpng.xcodeproj/project.pbxproj libpng-1.2.50/projects/xcode/libpng.xcodeproj/project.pbxproj
--- libpng-1.2.49/projects/xcode/libpng.xcodeproj/project.pbxproj	2012-03-28 23:52:38.203321024 -0500
+++ libpng-1.2.50/projects/xcode/libpng.xcodeproj/project.pbxproj	2012-07-09 19:36:58.112649000 -0500
@@ -221,9 +221,9 @@
 			buildSettings = {
 				COPY_PHASE_STRIP = NO;
 				DYLIB_COMPATIBILITY_VERSION = 3;
 				DYLIB_CURRENT_VERSION = 3;
-				FRAMEWORK_VERSION = 1.2.49;
+				FRAMEWORK_VERSION = 1.2.50;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@executable_path/../Frameworks";
@@ -239,9 +239,9 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				DYLIB_COMPATIBILITY_VERSION = 3;
 				DYLIB_CURRENT_VERSION = 3;
-				FRAMEWORK_VERSION = 1.2.49;
+				FRAMEWORK_VERSION = 1.2.50;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
 				INSTALL_PATH = "@executable_path/../Frameworks";