diff --git a/ANNOUNCE b/ANNOUNCE
index 7138a18..785d3ca 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.4.9beta01 - September 2, 2011
+Libpng 1.4.9beta01 - February 17, 2012
 
 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.
@@ -26,11 +26,14 @@
 
 Changes since the last public release (1.4.8):
 
-version 1.4.9beta01 [September 2, 2011]
+version 1.4.9beta01 [February 17, 2012]
   Added vstudio/* and CMakeLists to EXTRA_DIST in Makefile.in and Makefile.am
   Updated contrib/pngminus/makefile.std (Samuli Souminen)
   Added SunOS support to configure.ac and Makefile.am (but configure and
     Makefile.in were not updated)
+  Fixed CVE-2011-3026 buffer overrun bug.  Deal more correctly with the test
+    on iCCP chunk length. Also removed spurious casts that may hide problems
+    on 16-bit systems.
 
 Send comments/corrections/commendations to glennrp at users.sourceforge.net
 or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 5c30c35..6c53af0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2825,11 +2825,14 @@
 version 1.4.8 [July 7, 2011]
   No changes.
 
-version 1.4.9beta01 [September 2, 2011]
+version 1.4.9beta01 [February 17, 2012]
   Added vstudio/* and CMakeLists to EXTRA_DIST in Makefile.in and Makefile.am
   Updated contrib/pngminus/makefile.std (Samuli Souminen)
   Added SunOS support to configure.ac and Makefile.am (but configure and
     Makefile.in were not updated)
+  Fixed CVE-2011-3026 buffer overrun bug.  Deal more correctly with the test
+    on iCCP chunk length. Also removed spurious casts that may hide problems
+    on 16-bit systems.
 
 Send comments/corrections/commendations to glennrp at users.sourceforge.net
 or to png-mng-implement at lists.sf.net (subscription required; visit
diff --git a/INSTALL b/INSTALL
index 7144f73..7ab81a9 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.4.9beta01 - July 8, 2011
+Installing libpng version 1.4.9beta01 - February 17, 2012
 
 On Unix/Linux and similar systems, you can simply type
 
diff --git a/LICENSE b/LICENSE
index fdc1aa2..485200a 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 1.4.9beta01, July 8, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.9beta01, February 17, 2012, are
 Copyright (c) 2004, 2006-2010 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
-July 8, 2011
+February 17, 2012
diff --git a/README b/README
index 35d06f1..df6b413 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.4.9beta01 - July 8, 2011 (shared library 14.0)
+README for libpng version 1.4.9beta01 - February 17, 2012 (shared library 14.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/libpng-1.4.9beta01.txt b/libpng-1.4.9beta01.txt
index 80e22ad..98fa428 100644
--- a/libpng-1.4.9beta01.txt
+++ b/libpng-1.4.9beta01.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.4.9beta01 - July 13, 2011
+ libpng version 1.4.9beta01 - February 17, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2010 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.4.9beta01 - July 13, 2011
+ libpng versions 0.97, January 1998, through 1.4.9beta01 - February 17, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
@@ -3312,7 +3312,7 @@
 
 XIII. Y2K Compliance in libpng
 
-July 13, 2011
+February 17, 2012
 
 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 86ca620..f647206 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "July 13, 2011"
+.TH LIBPNG 3 "February 17, 2012"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.9beta01
 .SH SYNOPSIS
@@ -895,7 +895,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.4.9beta01 - July 13, 2011
+ libpng version 1.4.9beta01 - February 17, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2010 Glenn Randers-Pehrson
@@ -906,7 +906,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.4.9beta01 - July 13, 2011
+ libpng versions 0.97, January 1998, through 1.4.9beta01 - February 17, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
@@ -4207,7 +4207,7 @@
 
 .SH XIII. Y2K Compliance in libpng
 
-July 13, 2011
+February 17, 2012
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -4469,7 +4469,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.4.9beta01 - July 13, 2011:
+Libpng version 1.4.9beta01 - February 17, 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).
 
@@ -4492,7 +4492,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.4.9beta01, July 13, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.9beta01, February 17, 2012, 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
@@ -4591,7 +4591,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-July 13, 2011
+February 17, 2012
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index c6fa828..48549fe 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "July 8, 2011"
+.TH LIBPNGPF 3 "February 17, 2012"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.9beta01
 (private functions)
diff --git a/png.5 b/png.5
index c21a296..8d8c6a1 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "July 8, 2011"
+.TH PNG 5 "February 17, 2012"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 2defd78..1d860cb 100644
--- a/png.c
+++ b/png.c
@@ -547,13 +547,13 @@
 #else
 #ifdef __STDC__
    return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.4.9beta01 - July 8, 2011" PNG_STRING_NEWLINE \
+     "libpng version 1.4.9beta01 - February 17, 2012" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2010 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 1.4.9beta01 - July 8, 2011\
+      return ((png_charp) "libpng version 1.4.9beta01 - February 17, 2012\
       Copyright (c) 1998-2010 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 bdbe588..314f512 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.4.9beta01 - July 8, 2011
+ * libpng version 1.4.9beta01 - February 17, 2012
  * Copyright (c) 1998-2011 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 1.4.9beta01 - July 8, 2011: Glenn
+ *  libpng versions 0.97, January 1998, through 1.4.9beta01 - February 17, 2012: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -193,7 +193,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.4.9beta01, July 8, 2011, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.4.9beta01, February 17, 2012, are
  * Copyright (c) 2004, 2006-2010 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:
@@ -305,7 +305,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    July 8, 2011
+ *    February 17, 2012
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -369,7 +369,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.4.9beta01"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.4.9beta01 - July 8, 2011\n"
+   " libpng version 1.4.9beta01 - February 17, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   14
 #define PNG_LIBPNG_VER_DLLNUM  14
diff --git a/pngconf.h b/pngconf.h
index 5453cfd..9bb15d2 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.4.9beta01 - July 8, 2011
+ * libpng version 1.4.9beta01 - February 17, 2012
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpread.c b/pngpread.c
index a2d8dbf..47dc1ec 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -701,7 +701,7 @@
       new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256;
       old_buffer = png_ptr->save_buffer;
       png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
-         (png_size_t)new_max);
+         new_max);
       if (png_ptr->save_buffer == NULL)
       {
         png_free(png_ptr, old_buffer);
@@ -1219,7 +1219,7 @@
 #endif
 
    png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-      (png_size_t)(length + 1));
+      length + 1);
    png_ptr->current_text[length] = '\0';
    png_ptr->current_text_ptr = png_ptr->current_text;
    png_ptr->current_text_size = (png_size_t)length;
@@ -1319,7 +1319,7 @@
 #endif
 
    png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-      (png_size_t)(length + 1));
+      length + 1);
    png_ptr->current_text[length] = '\0';
    png_ptr->current_text_ptr = png_ptr->current_text;
    png_ptr->current_text_size = (png_size_t)length;
@@ -1518,7 +1518,7 @@
 #endif
 
    png_ptr->current_text = (png_charp)png_malloc(png_ptr,
-      (png_size_t)(length + 1));
+      length + 1);
    png_ptr->current_text[length] = '\0';
    png_ptr->current_text_ptr = png_ptr->current_text;
    png_ptr->current_text_size = (png_size_t)length;
@@ -1657,7 +1657,7 @@
       png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name) - 1]
         = '\0';
 
-      png_ptr->unknown_chunk.size = (png_size_t)length;
+      png_ptr->unknown_chunk.size = length;
 
       if (length == 0)
          png_ptr->unknown_chunk.data = NULL;
@@ -1665,7 +1665,7 @@
       else
       {
          png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr,
-            (png_size_t)length);
+            length);
          png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length);
       }
 
diff --git a/pngpriv.h b/pngpriv.h
index e798dfe..1a7ad0b 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -1,7 +1,7 @@
 
 /* pngpriv.h - private declarations for use inside libpng
  *
- * libpng version 1.4.9beta01 - July 8, 2011
+ * libpng version 1.4.9beta01 - February 17, 2012
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrutil.c b/pngrutil.c
index ac3101b..d8f11f0 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -377,15 +377,18 @@
       /* Now check the limits on this chunk - if the limit fails the
        * compressed data will be removed, the prefix will remain.
        */
+      if (prefix_size >= (~(png_size_t)0) - 1 ||
+         expanded_size >= (~(png_size_t)0) - 1 - prefix_size
 #ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
-      if (png_ptr->user_chunk_malloc_max &&
+         || (png_ptr->user_chunk_malloc_max &&
           (prefix_size + expanded_size >= png_ptr->user_chunk_malloc_max - 1))
 #else
 #  ifdef PNG_USER_CHUNK_MALLOC_MAX
-      if ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
+         || ((PNG_USER_CHUNK_MALLOC_MAX > 0) &&
           prefix_size + expanded_size >= PNG_USER_CHUNK_MALLOC_MAX - 1)
 #  endif
 #endif
+         )
          png_warning(png_ptr, "Exceeded size limit while expanding chunk");
 
       /* If the size is zero either there was an error and a message
@@ -1261,7 +1264,7 @@
 
    png_free(png_ptr, png_ptr->chunkdata);
    png_ptr->chunkdata = (png_charp)png_malloc(png_ptr, length + 1);
-   slength = (png_size_t)length;
+   slength = length;
    png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);
 
    if (png_crc_finish(png_ptr, skip))
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 66c4e67..e192c42 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.4.9beta01 - July 8, 2011
+libpng version 1.4.9beta01 - February 17, 2012
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 1233ea7..18670e6 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source and build
  *
- * libpng version 1.4.9beta01 - July 8, 2011
+ * libpng version 1.4.9beta01 - February 17, 2012
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index a446cd6..cd92170 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.4.9beta01 - July 8, 2011
+Makefiles for  libpng version 1.4.9beta01 - February 17, 2012
 
  makefile.linux    =>  Linux/ELF makefile
                        (gcc, creates libpng14.so.14.1.4.9beta01)
diff --git a/sunfix-makefile.patch b/sunfix-makefile.patch
new file mode 100644
index 0000000..70ea403
--- /dev/null
+++ b/sunfix-makefile.patch
@@ -0,0 +1,16 @@
+Index: libpng-1.2.46/Makefile.am
+===================================================================
+--- libpng-1.2.46.orig/Makefile.am	2011-08-30 14:48:43.039223476 +0400
++++ libpng-1.2.46/Makefile.am	2011-08-30 15:02:18.775861919 +0400
+@@ -49,7 +49,11 @@
+ 
+ if HAVE_LD_VERSION_SCRIPT
+   # Versioned symbols and restricted exports
++if HAVE_SOLARIS_LD
++  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M Wl,libpng.vers
++else
++  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
++endif
+   libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
+ else
+   # Only restricted exports when possible
diff --git a/sunfix.patch b/sunfix.patch
new file mode 100644
index 0000000..8b281cd
--- /dev/null
+++ b/sunfix.patch
@@ -0,0 +1,45 @@
+Index: libpng-1.2.46/configure.ac
+===================================================================
+--- libpng-1.2.46.orig/configure.ac	2011-08-30 14:48:43.039028289 +0400
++++ libpng-1.2.46/configure.ac	2011-08-30 14:56:09.680021389 +0400
+@@ -78,8 +78,23 @@
+ AC_SUBST(LIBPNG_DEFINES)
+ AC_SUBST(LIBPNG_NO_MMX)
+ 
++AC_MSG_CHECKING([if using Solaris linker])
++SLD=`$LD --version 2>&1 | grep Solaris`
++if test "$SLD"; then
++    have_solaris_ld=yes
++    AC_MSG_RESULT(yes)
++else
++    have_solaris_ld=no
++    AC_MSG_RESULT(no)
++fi
++AM_CONDITIONAL(HAVE_SOLARIS_LD, test "$have_solaris_ld" = "yes")
++
+ AC_MSG_CHECKING([if libraries can be versioned])
+-GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
++if test "$have_solaris_ld" = "yes"; then
++    GLD=`$LD --help < /dev/null 2>&1 | grep 'M mapfile'`
++else
++    GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
++fi
+ if test "$GLD"; then
+     have_ld_version_script=yes
+     AC_MSG_RESULT(yes)
+Index: libpng-1.2.46/Makefile.am
+===================================================================
+--- libpng-1.2.46.orig/Makefile.am	2011-08-30 14:48:43.039223476 +0400
++++ libpng-1.2.46/Makefile.am	2011-08-30 15:02:18.775861919 +0400
+@@ -49,7 +49,11 @@
+ 
+ if HAVE_LD_VERSION_SCRIPT
+   # Versioned symbols and restricted exports
++if HAVE_SOLARIS_LD
++  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M Wl,libpng.vers
++else
++  libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
++endif
+   libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
+ else
+   # Only restricted exports when possible