diff --git a/ANNOUNCE b/ANNOUNCE
index 5fab72a..5a6a063 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.2.49 - March 29, 2012
+Libpng 1.2.50 - July 10, 2012
 
 This is a public release of libpng, intended for use in production codes.
 
@@ -8,44 +8,44 @@
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.2.49.tar.xz (LZMA-compressed, recommended)
-   libpng-1.2.49.tar.gz
-   libpng-1.2.49.tar.bz2
+   libpng-1.2.50.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.50.tar.gz
+   libpng-1.2.50.tar.bz2
 
 Source files with LF line endings (for Unix/Linux) without the
 "configure" script
 
-   libpng-1.2.49-no-config.tar.xz (LZMA-compressed, recommended)
-   libpng-1.2.49-no-config.tar.gz
-   libpng-1.2.49-no-config.tar.bz2
+   libpng-1.2.50-no-config.tar.xz (LZMA-compressed, recommended)
+   libpng-1.2.50-no-config.tar.gz
+   libpng-1.2.50-no-config.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lpng1249.zip
-   lpng1249.7z
-   lpng1249.tar.bz2
+   lpng1250.zip
+   lpng1250.7z
+   lpng1250.tar.bz2
 
 Project files
 
-   libpng-1.2.49-project-netware.zip
-   libpng-1.2.49-project-wince.zip
+   libpng-1.2.50-project-netware.zip
+   libpng-1.2.50-project-wince.zip
 
 Other information:
 
-   libpng-1.2.49-README.txt
-   libpng-1.2.49-KNOWNBUGS.txt
-   libpng-1.2.49-LICENSE.txt
-   libpng-1.2.49-Y2K-compliance.txt
-   libpng-1.2.49-[previous version]-diff.txt
+   libpng-1.2.50-README.txt
+   libpng-1.2.50-KNOWNBUGS.txt
+   libpng-1.2.50-LICENSE.txt
+   libpng-1.2.50-Y2K-compliance.txt
+   libpng-1.2.50-[previous version]-diff.txt
 
-Changes since the last public release (1.2.48):
+Changes since the last public release (1.2.49):
 
-version 1.2.49 [March 29, 2012]
+version 1.2.50 [July 10, 2012]
 
-  Revised png_set_text_2() to avoid potential memory corruption (fixes
-    CVE-2011-3048).
-  Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
+version 1.0.60 and 1.2.50 [July 8, 2012]
+  Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
+
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index ad90e51..dc9e2ae 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2740,7 +2740,6 @@
   Updated contrib/pngminus/makefile.std (Samuli Souminen)
 
 version 1.0.57rc01 and 1.2.47rc01 [February 17, 2012]
-  Fixed CVE-2011-3026 buffer overrun bug.
   Fixed CVE-2011-3026 buffer overrun bug.  This bug was introduced when
     iCCP chunk support was added at libpng-1.0.6.
 
@@ -2770,11 +2769,14 @@
 version 1.0.58 and 1.2.48 [March 8, 2012]
   No changes.
 
-version 1.2.49rc01 [March 29, 2012]
+version 1.0.59 and 1.2.49 [March 29, 2012]
   Revised png_set_text_2() to avoid potential memory corruption (fixes
     CVE-2011-3048).
   Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
 
+version 1.0.60 and 1.2.50 [July 9, 2012]
+  Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
+
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c8c0d0b..00d9f7e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@
 
 set(PNGLIB_MAJOR 1)
 set(PNGLIB_MINOR 2)
-set(PNGLIB_RELEASE 49)
+set(PNGLIB_RELEASE 50)
 set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
 set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
 
@@ -215,7 +215,7 @@
 # SET UP LINKS
 if(PNG_SHARED)
   set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#   VERSION 0.${PNGLIB_RELEASE}.1.2.49
+#   VERSION 0.${PNGLIB_RELEASE}.1.2.50
     VERSION 0.${PNGLIB_RELEASE}.0
     SOVERSION 0
     CLEAN_DIRECT_OUTPUT 1)
diff --git a/INSTALL b/INSTALL
index b688362..f18fa54 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.2.49 - March 29, 2012
+Installing libpng version 1.2.50 - July 10, 2012
 
 On Unix/Linux and similar systems, you can simply type
 
@@ -46,7 +46,7 @@
 correspond to the version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.2.49" or "libpng12" and "zlib-1.2.3"
+might be called "libpng-1.2.50" or "libpng12" and "zlib-1.2.3"
 or "zlib123") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
diff --git a/KNOWNBUG b/KNOWNBUG
index 066c837..0c7ba48 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -1,5 +1,5 @@
 
-Known bugs in libpng version 1.2.49
+Known bugs in libpng version 1.2.50
 
 1. February 23, 2006: The custom makefiles don't build libpng with -lz.
 
diff --git a/LICENSE b/LICENSE
index c04d730..a684fe5 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 1.2.49, March 29, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.2.50, July 10, 2012, are
 Copyright (c) 2004, 2006-2009 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 29, 2012
+July 10, 2012
diff --git a/Makefile.am b/Makefile.am
index dfd1588..5580848 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -89,7 +89,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.2.49.txt pnggccrd.c pngvcrd.c
+	example.c libpng-1.2.50.txt pnggccrd.c pngvcrd.c
 
 CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
 libpng.sym
diff --git a/Makefile.in b/Makefile.in
index 9b46e4a..ba8f39e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -354,7 +354,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.2.49.txt pnggccrd.c pngvcrd.c
+	example.c libpng-1.2.50.txt pnggccrd.c pngvcrd.c
 
 CLEANFILES = pngout.png libpng12.pc libpng12-config libpng.vers \
 libpng.sym
@@ -1146,7 +1146,7 @@
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
 	esac
-	chmod -R a-w $(distdir); chmod a+w $(distdir)
+	chmod -R a-w $(distdir); chmod u+w $(distdir)
 	mkdir $(distdir)/_build
 	mkdir $(distdir)/_inst
 	chmod a-w $(distdir)
diff --git a/README b/README
index 9559685..0b4e6ae 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.2.49 - March 29, 2012 (shared library 12.0)
+README for libpng version 1.2.50 - July 10, 2012 (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.
@@ -199,11 +199,11 @@
        makefile.std     =>  Generic UNIX makefile (cc, creates static
                             libpng.a)
        makefile.elf     =>  Linux/ELF gcc makefile symbol versioning,
-                            creates libpng12.so.0.1.2.49)
+                            creates libpng12.so.0.1.2.50)
        makefile.linux   =>  Linux/ELF makefile (gcc, creates
-                            libpng12.so.0.1.2.49)
+                            libpng12.so.0.1.2.50)
        makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
-                            libpng12.so.0.1.2.49, previously
+                            libpng12.so.0.1.2.50, previously
                             used assembler code tuned for Intel MMX
                             platform)
        makefile.gcc     =>  Generic makefile (gcc, creates static
@@ -228,12 +228,12 @@
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
        makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng12.so.0.1.2.49)
+                            (gcc, creates libpng12.so.0.1.2.50)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng12.so.0.1.2.49)
+                            (gcc, creates libpng12.so.0.1.2.50)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng12.so.0.1.2.49)
+                            (gcc, creates libpng12.so.0.1.2.50)
        makefile.32sunu  =>  Sun Ultra 32-bit makefile
        makefile.64sunu  =>  Sun Ultra 64-bit makefile
        makefile.sco     =>  For SCO OSr5  ELF and Unixware 7 with Native cc
diff --git a/Y2KINFO b/Y2KINFO
index 6e46b68..fd36996 100644
--- a/Y2KINFO
+++ b/Y2KINFO
@@ -1,13 +1,13 @@
    Y2K compliance in libpng:
    =========================
 
-      March 29, 2012
+      July 10, 2012
 
       Since the PNG Development group is an ad-hoc body, we can't make
       an official declaration.
 
       This is your unofficial assurance that libpng from version 0.71 and
-      upward through 1.2.49 are Y2K compliant.  It is my belief that earlier
+      upward through 1.2.50 are Y2K compliant.  It is my belief that earlier
       versions were also Y2K compliant.
 
       Libpng only has three year fields.  One is a 2-byte unsigned integer
diff --git a/configure b/configure
index 8f157db..3f91cbe 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.65 for libpng 1.2.49.
+# Generated by GNU Autoconf 2.65 for libpng 1.2.50.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -701,8 +701,8 @@
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.2.49'
-PACKAGE_STRING='libpng 1.2.49'
+PACKAGE_VERSION='1.2.50'
+PACKAGE_STRING='libpng 1.2.50'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
 PACKAGE_URL=''
 
@@ -1435,7 +1435,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures libpng 1.2.49 to adapt to many kinds of systems.
+\`configure' configures libpng 1.2.50 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1505,7 +1505,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.2.49:";;
+     short | recursive ) echo "Configuration of libpng 1.2.50:";;
    esac
   cat <<\_ACEOF
 
@@ -1612,7 +1612,7 @@
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libpng configure 1.2.49
+libpng configure 1.2.50
 generated by GNU Autoconf 2.65
 
 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -2037,7 +2037,7 @@
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by libpng $as_me 1.2.49, which was
+It was created by libpng $as_me 1.2.50, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
@@ -2845,7 +2845,7 @@
 
 # Define the identity of the package.
  PACKAGE='libpng'
- VERSION='1.2.49'
+ VERSION='1.2.50'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2909,10 +2909,10 @@
 
 
 
-PNGLIB_VERSION=1.2.49
+PNGLIB_VERSION=1.2.50
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=2
-PNGLIB_RELEASE=49
+PNGLIB_RELEASE=50
 
 
 
@@ -12079,7 +12079,7 @@
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by libpng $as_me 1.2.49, which was
+This file was extended by libpng $as_me 1.2.50, which was
 generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -12145,7 +12145,7 @@
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-libpng config.status 1.2.49
+libpng config.status 1.2.50
 configured by $0, generated by GNU Autoconf 2.65,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index bf44ac0..057dca3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,15 +18,15 @@
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.2.49], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.2.50], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.2.49
+PNGLIB_VERSION=1.2.50
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=2
-PNGLIB_RELEASE=49
+PNGLIB_RELEASE=50
 
 dnl End of version number stuff
 
diff --git a/libpng-1.2.49.txt b/libpng-1.2.50.txt
similarity index 99%
rename from libpng-1.2.49.txt
rename to libpng-1.2.50.txt
index 194fe41..6f1b089 100644
--- a/libpng-1.2.49.txt
+++ b/libpng-1.2.50.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.49 - March 29, 2012
+ libpng version 1.2.50 - July 10, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.49 - March 29, 2012
+ libpng versions 0.97, January 1998, through 1.2.50 - July 10, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -878,7 +878,7 @@
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.
 
-As of libpng version 1.2.49, not all possible expansions are supported.
+As of libpng version 1.2.50, not all possible expansions are supported.
 
 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -3179,13 +3179,13 @@
 
 XIII. Y2K Compliance in libpng
 
-March 29, 2012
+July 10, 2012
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.49 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.50 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
diff --git a/libpng.3 b/libpng.3
index 61e0017..0724fb5 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "March 29, 2012"
+.TH LIBPNG 3 "July 10, 2012"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.49
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.50
 .SH SYNOPSIS
 \fI\fB
 
@@ -821,7 +821,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.49 - March 29, 2012
+ libpng version 1.2.50 - July 10, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -832,7 +832,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.49 - March 29, 2012
+ libpng versions 0.97, January 1998, through 1.2.50 - July 10, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -1699,7 +1699,7 @@
 As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
 added.  It expands the sample depth without changing tRNS to alpha.
 
-As of libpng version 1.2.49, not all possible expansions are supported.
+As of libpng version 1.2.50, not all possible expansions are supported.
 
 In the following table, the 01 means grayscale with depth<8, 31 means
 indexed with depth<8, other numerals represent the color type, "T" means
@@ -4000,13 +4000,13 @@
 
 .SH XIII. Y2K Compliance in libpng
 
-March 29, 2012
+July 10, 2012
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.49 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.50 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
@@ -4382,7 +4382,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.2.49 - March 29, 2012:
+Libpng version 1.2.50 - July 10, 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).
 
@@ -4405,7 +4405,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.2.49, March 29, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.2.50, July 10, 2012, are
 Copyright (c) 2004,2006-2008 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
@@ -4504,7 +4504,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-March 29, 2012
+July 10, 2012
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index 9a2c2ef..9b921e6 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "March 29, 2012"
+.TH LIBPNGPF 3 "July 10, 2012"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.49
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.50
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.5 b/png.5
index e16d303..23bbef9 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "March 29, 2012"
+.TH PNG 5 "July 10, 2012"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 8d98612..18d26db 100644
--- a/png.c
+++ b/png.c
@@ -17,7 +17,7 @@
 #include "png.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_49 Your_png_h_is_not_version_1_2_49;
+typedef version_1_2_50 Your_png_h_is_not_version_1_2_50;
 
 /* Version information for C files.  This had better match the version
  * string defined in png.h.
@@ -724,13 +724,13 @@
 #else
 #ifdef __STDC__
    return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.2.49 - March 29, 2012" PNG_STRING_NEWLINE \
+     "libpng version 1.2.50 - July 10, 2012" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2011 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 ((png_charp) "libpng version 1.2.49 - March 29, 2012\
+      return ((png_charp) "libpng version 1.2.50 - July 10, 2012\
       Copyright (c) 1998-2011 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 b58c458..3560969 100644
--- a/png.h
+++ b/png.h
@@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.2.49 - March 29, 2012
+ * libpng version 1.2.50 - July 10, 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.)
@@ -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 1.2.49 - March 29, 2012: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.50 - July 10, 2012: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -282,6 +282,8 @@
  *    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
@@ -313,7 +315,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.2.49, March 29, 2012, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.2.50, July 10, 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:
@@ -425,13 +427,13 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 29, 2012
+ *    July 10, 2012
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
  *
  *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.2.49 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.2.50 are Y2K compliant.  It is my belief that earlier
  *    versions were also Y2K compliant.
  *
  *    Libpng only has three year fields.  One is a 2-byte unsigned integer
@@ -487,9 +489,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.2.49"
+#define PNG_LIBPNG_VER_STRING "1.2.50"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.49 - March 29, 2012\n"
+   " libpng version 1.2.50 - July 10, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  13
@@ -497,7 +499,7 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   2
-#define PNG_LIBPNG_VER_RELEASE 49
+#define PNG_LIBPNG_VER_RELEASE 50
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero:
  */
@@ -527,7 +529,7 @@
  * version 1.0.0 was mis-numbered 100 instead of 10000).  From
  * version 1.0.1 it's    xxyyzz, where x=major, y=minor, z=release
  */
-#define PNG_LIBPNG_VER 10249 /* 1.2.49 */
+#define PNG_LIBPNG_VER 10250 /* 1.2.50 */
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Include the compression library's header */
@@ -1567,7 +1569,7 @@
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef png_structp version_1_2_49;
+typedef png_structp version_1_2_50;
 
 typedef png_struct FAR * FAR * png_structpp;
 
diff --git a/pngconf.h b/pngconf.h
index 85d9b2a..042a5e9 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.2.49 - March 29, 2012
+ * libpng version 1.2.50 - July 10, 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 --git a/pnggccrd.c b/pnggccrd.c
index cdaebc2..7eb7f67 100644
--- a/pnggccrd.c
+++ b/pnggccrd.c
@@ -1,6 +1,6 @@
 /* pnggccrd.c
  *
- * Last changed in libpng 1.2.48 [March 29, 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.
diff --git a/pngread.c b/pngread.c
index 0a075df..69ee464 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,7 +1,7 @@
 
 /* pngread.c - read a PNG file
  *
- * Last changed in libpng 1.2.48 [March 29, 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 --git a/pngrtran.c b/pngrtran.c
index c486930..7f0ff92 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 1.2.45 [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.)
  *
diff --git a/pngrutil.c b/pngrutil.c
index 952f30b..1de7427 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.2.48 [March 29, 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 --git a/pngset.c b/pngset.c
index c9ab8f6..72d89fc 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,8 +1,8 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * Last changed in libpng 1.2.43 [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.)
  *
diff --git a/pngtest.c b/pngtest.c
index 1b5a5f9..ccb3dce 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1702,4 +1702,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_49 your_png_h_is_not_version_1_2_49;
+typedef version_1_2_50 your_png_h_is_not_version_1_2_50;
diff --git a/pngvcrd.c b/pngvcrd.c
index d0670c4..f553138 100644
--- a/pngvcrd.c
+++ b/pngvcrd.c
@@ -1,6 +1,6 @@
 /* pngvcrd.c
  *
- * Last changed in libpng 1.2.48 [March 29, 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.
diff --git a/projects/wince.txt b/projects/wince.txt
index f8f6f59..a058a19 100644
--- a/projects/wince.txt
+++ b/projects/wince.txt
@@ -1,6 +1,6 @@
 A set of project files is available for WinCE.  Get
-libpng-1.2.49-project-wince.zip from a libpng distribution
+libpng-1.2.50-project-wince.zip from a libpng distribution
 site such as http://libpng.sourceforge.net/index.html
 
 Put the zip file in this directory (projects) and then run
-"unzip -a libpng-1.2.49-project-wince.zip"
+"unzip -a libpng-1.2.50-project-wince.zip"
diff --git a/projects/xcode/libpng.xcodeproj/project.pbxproj b/projects/xcode/libpng.xcodeproj/project.pbxproj
index 57085a0..35f9ffe 100644
--- a/projects/xcode/libpng.xcodeproj/project.pbxproj
+++ b/projects/xcode/libpng.xcodeproj/project.pbxproj
@@ -222,7 +222,7 @@
 				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;
@@ -240,7 +240,7 @@
 			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;
diff --git a/scripts/README.txt b/scripts/README.txt
index 4c0b4bc..3b6bb3a 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,8 +1,8 @@
 
-Makefiles for  libpng version 1.2.49 - March 29, 2012
+Makefiles for  libpng version 1.2.50 - July 10, 2012
 
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng12.so.0.1.2.49)
+                       (gcc, creates libpng12.so.0.1.2.50)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
                        ansi2knr (Requires ansi2knr.c from
@@ -20,7 +20,7 @@
  makefile.dec      =>  DEC Alpha UNIX makefile
  makefile.dj2      =>  DJGPP 2 makefile
  makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng12.so.0.1.2.49)
+                       gcc, creates libpng12.so.0.1.2.50)
  makefile.freebsd  =>  FreeBSD makefile
  makefile.gcc      =>  Generic gcc makefile
  makefile.gccmmx   =>  Generic gcc makefile previously using MMX code
@@ -38,14 +38,14 @@
  makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng12.so.0.1.2.49)
+                       creates libpng12.so.0.1.2.50)
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng12.so.0.1.2.49)
+                       creates libpng12.so.0.1.2.50)
  makefile.solaris-x86  =>  Solaris 2.X makefile (gcc, no MMX code,
-                       creates libpng12.so.0.1.2.49)
+                       creates libpng12.so.0.1.2.50)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng12.so.0.1.2.49)
+                       creates libpng12.so.0.1.2.50)
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  makefile.sunos    =>  Sun makefile
  makefile.32sunu   =>  Sun Ultra 32-bit makefile
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 6429bbd..229dedc 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
 
 # Modeled after libxml-config.
 
-version=1.2.49
+version=1.2.50
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 7454f09..3ee7186 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.2.49
+Version: 1.2.50
 Libs: -L${libdir} -lpng12
 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 835e891..2127b23 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index d899b97..e1566d4 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 361a07b..e23716e 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -23,7 +23,7 @@
 
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index 66cd90e..82464e7 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index c0eeb39..1aff52e 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@
 
 VERMAJ = 1
 VERMIN = 2
-VERMIC = 49
+VERMIC = 50
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index da7aa80..9826a3c 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -77,7 +77,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
 CYGDLL = 12
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index db5c494..2edb8d7 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -22,7 +22,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 12
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index bc398b8..e4b46af 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -8,7 +8,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index dc544cc..b93d2cb 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -16,7 +16,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index 153ee19..24ed729 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -17,7 +17,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index 110a4f3..562aa84 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -21,7 +21,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 3e8bd5a..bdf7959 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index c621fc8..9edc23a 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -21,7 +21,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 983ae06..1db8dea 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw
index 7fbc8d8..99539c4 100644
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -81,7 +81,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
 MINGDLL = 12
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 651ff1c..7bd2300 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@
 
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.49
+SHLIB_MINOR=	1.2.50
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index c8f91d7..d8466fa 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.49
+SHLIB_MINOR=	1.2.50
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.nommx b/scripts/makefile.nommx
index 93bf2e3..a6d9ad5 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 2f7e199..443cc5f 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.49
+SHLIB_MINOR=	1.2.50
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 63815a4..c734b04 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -12,7 +12,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index 722ba2f..76f9fcb 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 90879fd..34a76ee 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index 4af464b..49f3242 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -11,7 +11,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 68c588d..852c6d9 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index 370ae67..16e2dc2 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.49
+PNGMIN = 1.2.50
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/png32ce.def b/scripts/png32ce.def
index 112904c..d234927 100644
--- a/scripts/png32ce.def
+++ b/scripts/png32ce.def
@@ -5,7 +5,7 @@
 LIBRARY lpngce
 
 EXPORTS
-;Version 1.2.49
+;Version 1.2.50
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index d07f2fd..5fe8938 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.2.49
+; Version 1.2.50
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index 27c7f90..cca91e1 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.2.49
+;Version 1.2.50
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3