diff --git a/ANNOUNCE b/ANNOUNCE
index 3146caa646048311641ef6adca86072364cfd254..cf971beaf97d0d58896ce922ce7956535bc24c1c 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.4.0beta87 - October 30, 2009
+Libpng 1.4.0beta88 - October 30, 2009
 
 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.
@@ -9,20 +9,20 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   1.4.0beta87.tar.xz (LZMA-compressed, recommended)
-   1.4.0beta87.tar.gz
-   1.4.0beta87.tar.bz2
+   1.4.0beta88.tar.xz (LZMA-compressed, recommended)
+   1.4.0beta88.tar.gz
+   1.4.0beta88.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lp140b87.zip
-   lp140b87.7z
+   lp140b88.zip
+   lp140b88.7z
 
 Other information:
 
-   1.4.0beta87-README.txt
-   1.4.0beta87-LICENSE.txt
+   1.4.0beta88-README.txt
+   1.4.0beta88-LICENSE.txt
 
 Changes since the last public release (1.2.10):
 
@@ -584,6 +584,8 @@ version 1.4.0rc01 [October 19, 2009]
 version 1.4.0beta87 [October 30, 2009]
   Moved version 1.4.0 back into beta.
 
+version 1.4.0beta87 [October 30, 2009]
+
 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/CHANGES b/CHANGES
index e20e57042e688c3a5d49251f7c41fa9e9ff04a1b..2ea22a27c456741209ebd5fe7058f61f24648751 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2270,6 +2270,8 @@ version 1.4.0rc01 [October 19, 2009]
 version 1.4.0beta87 [October 30, 2009]
   Moved version 1.4.0 back into beta.
 
+version 1.4.0beta87 [October 30, 2009]
+
 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 764c4389780658317a93c325b4bfd570e7c9f4cf..7bca715dc81e232a22cdaaa1df0939acc1af524e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -193,7 +193,7 @@ configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
 # SET UP LINKS
 if(PNG_SHARED)
   set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#    VERSION 14.${PNGLIB_RELEASE}.1.4.0beta87
+#    VERSION 14.${PNGLIB_RELEASE}.1.4.0beta88
      VERSION 14.${PNGLIB_RELEASE}.0
      SOVERSION 14
      CLEAN_DIRECT_OUTPUT 1)
diff --git a/INSTALL b/INSTALL
index 289a0a64d08d29f32cf7634f66dfbe2e7a4e0916..48427ca3805419bcc6c6c3a63478b988878a616f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.4.0beta87 - October 30, 2009
+Installing libpng version 1.4.0beta88 - October 30, 2009
 
 On Unix/Linux and similar systems, you can simply type
 
@@ -43,7 +43,7 @@ to have access to the zlib.h and zconf.h include files that
 correspond to the version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.4.0beta87" or "lpng109" and "zlib-1.2.1"
+might be called "libpng-1.4.0beta88" or "lpng109" and "zlib-1.2.1"
 or "zlib121") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
@@ -94,14 +94,14 @@ include
  CMakeLists.txt    =>  "cmake" script
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng14.so.14.1.4.0beta87)
+                       gcc, creates libpng14.so.14.1.4.0beta88)
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng14.so.14.1.4.0beta87)
+                       (gcc, creates libpng14.so.14.1.4.0beta88)
  makefile.gcmmx    =>  Linux/ELF makefile
-                       (gcc, creates libpng14.so.14.1.4.0beta87,
+                       (gcc, creates libpng14.so.14.1.4.0beta88,
                        uses assembler code tuned for Intel MMX platform)
  makefile.nommx    =>  Linux/ELF makefile
-                       (gcc, creates libpng14.so.14.1.4.0beta87
+                       (gcc, creates libpng14.so.14.1.4.0beta88
                        does not use Intel MMX assembler code)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
@@ -123,12 +123,12 @@ include
  makefile.openbsd  =>  OpenBSD makefile
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng14.so.14.1.4.0beta87)
+                       creates libpng14.so.14.1.4.0beta88)
  makefile.sunos    =>  Sun makefile
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng14.so.14.1.4.0beta87)
+                       creates libpng14.so.14.1.4.0beta88)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng14.so.14.1.4.0beta87)
+                       creates libpng14.so.14.1.4.0beta88)
  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/LICENSE b/LICENSE
index 517b83749f4e902b26e1888731dd81ad852f6aae..6658eaf0f827b04752049cffc11c913c9d8e60e4 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.4.0beta87, October 30, 2009, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.0beta88, October 30, 2009, 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
diff --git a/Makefile.am b/Makefile.am
index 8b6996ccd12ab58cf6ee3d78599469e883db7aac..8e1abe728f0d57365f402b56cde87d332ff2c619 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -86,7 +86,7 @@ EXTRA_DIST= \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.4.0beta87.txt pngvcrd.c 
+	example.c libpng-1.4.0beta88.txt pngvcrd.c 
 
 CLEANFILES= pngout.png libpng14.pc libpng14-config libpng.vers \
 libpng.sym
diff --git a/Makefile.in b/Makefile.in
index c4a355915249c9f687df312fc0d6a9f241c730cf..04ee488752a4b6bc38763b8f0d8124164b18847f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -351,7 +351,7 @@ EXTRA_DIST = \
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.4.0beta87.txt pngvcrd.c 
+	example.c libpng-1.4.0beta88.txt pngvcrd.c 
 
 CLEANFILES = pngout.png libpng14.pc libpng14-config libpng.vers \
 libpng.sym
diff --git a/README b/README
index 7459e3df027c4afefdf7c28cfa7a9291dc6e05c4..662f47bea504bf1aad3d70941e5498f1ab5b680c 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.4.0beta87 - October 30, 2009 (shared library 14.0)
+README for libpng version 1.4.0beta88 - October 30, 2009 (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.
@@ -184,11 +184,11 @@ Files in this distribution:
        descrip.mms      =>  VMS makefile for MMS or MMK
        makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
        makefile.elf     =>  Linux/ELF makefile symbol versioning,
-                            gcc, creates libpng14.so.14.1.4.0beta87)
+                            gcc, creates libpng14.so.14.1.4.0beta88)
        makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng14.so.14.1.4.0beta87)
+                            (gcc, creates libpng14.so.14.1.4.0beta88)
        makefile.gcmmx   =>  Linux/ELF makefile
-                            (gcc, creates libpng14.so.14.1.4.0beta87,
+                            (gcc, creates libpng14.so.14.1.4.0beta88,
                             uses assembler code tuned for Intel MMX platform)
        makefile.gcc     =>  Generic makefile (gcc, creates static libpng.a)
        makefile.knr     =>  Archaic UNIX Makefile that converts files with
@@ -209,12 +209,12 @@ Files in this distribution:
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
        makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng14.so.14.1.4.0beta87)
+                            (gcc, creates libpng14.so.14.1.4.0beta88)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng14.so.14.1.4.0beta87)
+                            (gcc, creates libpng14.so.14.1.4.0beta88)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng14.so.14.1.4.0beta87)
+                            (gcc, creates libpng14.so.14.1.4.0beta88)
        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/configure b/configure
index 7abaf711ac38c0088d0f91d8479607631b587852..658bcd43ab8867febb3f7af8185ac94f1ad5a56f 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.64 for libpng 1.4.0beta87.
+# Generated by GNU Autoconf 2.64 for libpng 1.4.0beta88.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -698,8 +698,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.4.0beta87'
-PACKAGE_STRING='libpng 1.4.0beta87'
+PACKAGE_VERSION='1.4.0beta88'
+PACKAGE_STRING='libpng 1.4.0beta88'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
 PACKAGE_URL=''
 
@@ -1431,7 +1431,7 @@ if test "$ac_init_help" = "long"; then
   # 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 1.4.0beta87 to adapt to many kinds of systems.
+\`configure' configures libpng 1.4.0beta88 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1501,7 +1501,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.4.0beta87:";;
+     short | recursive ) echo "Configuration of libpng 1.4.0beta88:";;
    esac
   cat <<\_ACEOF
 
@@ -1608,7 +1608,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libpng configure 1.4.0beta87
+libpng configure 1.4.0beta88
 generated by GNU Autoconf 2.64
 
 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -2033,7 +2033,7 @@ cat >config.log <<_ACEOF
 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 1.4.0beta87, which was
+It was created by libpng $as_me 1.4.0beta88, which was
 generated by GNU Autoconf 2.64.  Invocation command line was
 
   $ $0 $@
@@ -2841,7 +2841,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='libpng'
- VERSION='1.4.0beta87'
+ VERSION='1.4.0beta88'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2905,7 +2905,7 @@ fi
 
 
 
-PNGLIB_VERSION=1.4.0beta87
+PNGLIB_VERSION=1.4.0beta88
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=4
 PNGLIB_RELEASE=0
@@ -12022,7 +12022,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # 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 1.4.0beta87, which was
+This file was extended by libpng $as_me 1.4.0beta88, which was
 generated by GNU Autoconf 2.64.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -12086,7 +12086,7 @@ Report bugs to <png-mng-implement@lists.sourceforge.net>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-libpng config.status 1.4.0beta87
+libpng config.status 1.4.0beta88
 configured by $0, generated by GNU Autoconf 2.64,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.ac b/configure.ac
index ac742a443635da02094278adef3e4caa812b1e20..b503a6571aee56c4e5444b983a1ccaaf2ac894ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,12 +18,12 @@ AC_PREREQ(2.59)
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.4.0beta87], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.4.0beta88], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.4.0beta87
+PNGLIB_VERSION=1.4.0beta88
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=4
 PNGLIB_RELEASE=0
diff --git a/libpng-1.4.0beta87.txt b/libpng-1.4.0beta88.txt
similarity index 99%
rename from libpng-1.4.0beta87.txt
rename to libpng-1.4.0beta88.txt
index 9280c8307e493df6d39e3b3073c3c29f35b0e3e1..4413f7fd721cecd9071b6a454bafde276e444497 100644
--- a/libpng-1.4.0beta87.txt
+++ b/libpng-1.4.0beta88.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.4.0beta87 - October 30, 2009
+ libpng version 1.4.0beta88 - October 30, 2009
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.4.0beta87 - October 30, 2009
+ libpng versions 0.97, January 1998, through 1.4.0beta88 - October 30, 2009
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -871,7 +871,7 @@ things.
 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 1.4.0beta87, not all possible expansions are supported.
+As of libpng version 1.4.0beta88, 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
@@ -3220,7 +3220,7 @@ 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 1.4.0beta87 are Y2K compliant.  It is my belief that earlier
+upward through 1.4.0beta88 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 f157f58d0f8025b0842a4c82870c321f26abb768..4cd27fb79af31b6cf4e8c26a6b2baf0fab45b4c3 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
 .TH LIBPNG 3 "October 30, 2009"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta87
+libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta88
 .SH SYNOPSIS
 \fI\fB
 
@@ -809,7 +809,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.4.0beta87 - October 30, 2009
+ libpng version 1.4.0beta88 - October 30, 2009
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -820,7 +820,7 @@ libpng.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.4.0beta87 - October 30, 2009
+ libpng versions 0.97, January 1998, through 1.4.0beta88 - October 30, 2009
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2009 Glenn Randers-Pehrson
 
@@ -1680,7 +1680,7 @@ things.
 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 1.4.0beta87, not all possible expansions are supported.
+As of libpng version 1.4.0beta88, 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
@@ -4029,7 +4029,7 @@ 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 1.4.0beta87 are Y2K compliant.  It is my belief that earlier
+upward through 1.4.0beta88 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
@@ -4198,7 +4198,8 @@ the first widely used release:
  1.2.13              13    10213  12.so.0.13[.0]
  1.4.0beta15-36      14    10400  14.so.0.0[.0]
  1.4.0beta37-87      14    10400  14.so.14.0[.0]
- 1.4.0rc01-02        14    10400  14.so.14.0[.0]
+ 1.4.0rc01           14    10400  14.so.14.0[.0]
+ 1.4.0beta88         14    10400  14.so.14.0[.0]
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -4254,7 +4255,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.4.0beta87 - October 30, 2009:
+Libpng version 1.4.0beta88 - October 30, 2009:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -4277,7 +4278,7 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.4.0beta87, October 30, 2009, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.0beta88, October 30, 2009, 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
diff --git a/libpngpf.3 b/libpngpf.3
index 8dcecc61d7131f3b19db82d93bf71fc779193074..6a093b82f81538b627c7f73f2fd934e9294af666 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
 .TH LIBPNGPF 3 "October 30, 2009"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta87
+libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta88
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.c b/png.c
index cc5430ee241eb01a9398ff114fd8d7fbd47c1d29..5170a00319046c17fbcfe684d8cb68628371c67b 100644
--- a/png.c
+++ b/png.c
@@ -16,7 +16,7 @@
 #include "pngpriv.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_4_0beta87 Your_png_h_is_not_version_1_4_0beta87;
+typedef version_1_4_0beta88 Your_png_h_is_not_version_1_4_0beta88;
 
 /* Version information for C files.  This had better match the version
  * string defined in png.h.
@@ -547,13 +547,13 @@ png_get_copyright(png_structp png_ptr)
 #else
 #ifdef __STDC__
    return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version x 1.4.0beta87 - October 30, 2009" PNG_STRING_NEWLINE \
+     "libpng version x 1.4.0beta88 - October 30, 2009" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2009 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 1.4.0beta87 - October 30, 2009\
+      return ((png_charp) "libpng version 1.4.0beta88 - October 30, 2009\
       Copyright (c) 1998-2009 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 e9908f90e40e5aaaaafaf7a252010ece5b599bfa..147041d8ac6dfde86c9263d79df522c1366b054c 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.4.0beta87 - October 30, 2009
+ * libpng version 1.4.0beta88 - October 30, 2009
  * Copyright (c) 1998-2009 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 1.4.0beta87 - October 30, 2009: Glenn
+ *  libpng versions 0.97, January 1998, through 1.4.0beta88 - October 30, 2009: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -130,7 +130,8 @@
  *    1.2.13                  13    10213  12.so.0.13[.0]
  *    1.4.0beta15-36          14    10400  14.so.0.0[.0]
  *    1.4.0beta37-87          14    10400  14.so.14.0[.0]
- *    1.4.0rc01-02            14    10400  14.so.14.0[.0]
+ *    1.4.0rc01               14    10400  14.so.14.0[.0]
+ *    1.4.0beta88             14    10400  14.so.14.0[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -162,7 +163,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta87, October 30, 2009, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta88, October 30, 2009, 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:
@@ -280,7 +281,7 @@
  *    an official declaration.
  *
  *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.4.0beta87 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.4.0beta88 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
@@ -336,9 +337,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.4.0beta87"
+#define PNG_LIBPNG_VER_STRING "1.4.0beta88"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.4.0beta87 - October 30, 2009\n"
+   " libpng version 1.4.0beta88 - October 30, 2009\n"
 
 #define PNG_LIBPNG_VER_SONUM   14
 #define PNG_LIBPNG_VER_DLLNUM  14
@@ -351,7 +352,7 @@
  * PNG_LIBPNG_VER_STRING, omitting any leading zero:
  */
 
-#define PNG_LIBPNG_VER_BUILD  87
+#define PNG_LIBPNG_VER_BUILD  88
 
 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -1331,7 +1332,7 @@ struct png_struct_def
 /* 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_4_0beta87;
+typedef png_structp version_1_4_0beta88;
 
 typedef png_struct FAR * FAR * png_structpp;
 
diff --git a/pngconf.h b/pngconf.h
index 457e099475bcf3538cf9259c309b689423a91098..ab1708e403a6ba24ac738983877359f17e6b56b9 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.4.0beta87 - October 30, 2009
+ * libpng version 1.4.0beta88 - October 30, 2009
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2009 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpriv.h b/pngpriv.h
index 2430a879f68ee8e7d73e0e876bad244a6296edab..86d151a227bc5aab77386164cf2b2fc4702cfe15 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -1,7 +1,7 @@
 
 /* pngpriv.h - private declarations for use inside libpng
  *
- * libpng version 1.4.0beta87 - October 30, 2009
+ * libpng version 1.4.0beta88 - October 30, 2009
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2009 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngtest.c b/pngtest.c
index b75ec982780a49aac2215fe664487cb7667cc7ec..6e05db24dcf5cc4dd0400a4534715327ecf06d01 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1619,4 +1619,4 @@ main(int argc, char *argv[])
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_4_0beta87 your_png_h_is_not_version_1_4_0beta87;
+typedef version_1_4_0beta88 your_png_h_is_not_version_1_4_0beta88;
diff --git a/projects/xcode/libpng.xcodeproj/project.pbxproj b/projects/xcode/libpng.xcodeproj/project.pbxproj
index 0c85ad56d3c80f4dc043a0bc43d85590aef48e39..4056edd7296884e8ce75db06d661ff60331613aa 100644
--- a/projects/xcode/libpng.xcodeproj/project.pbxproj
+++ b/projects/xcode/libpng.xcodeproj/project.pbxproj
@@ -226,7 +226,7 @@
 				COPY_PHASE_STRIP = NO;
 				DYLIB_COMPATIBILITY_VERSION = 14;
 				DYLIB_CURRENT_VERSION = 14;
-				FRAMEWORK_VERSION = 1.4.0beta87;
+				FRAMEWORK_VERSION = 1.4.0beta88;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
@@ -244,7 +244,7 @@
 			buildSettings = {
 				DYLIB_COMPATIBILITY_VERSION = 14;
 				DYLIB_CURRENT_VERSION = 14;
-				FRAMEWORK_VERSION = 1.4.0beta87;
+				FRAMEWORK_VERSION = 1.4.0beta88;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index d6526158e5f14bf89fb38d3c1fee12bc6e9c6b22..31b27a92697e0df714928d5326009bcd02065221 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
 
 # Modeled after libxml-config.
 
-version=1.4.0beta87
+version=1.4.0beta88
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 5cf6f27994415f3db486ad284ec5bc477697fee7..bbd191ba6836a6c54424e9d8df948d26a6f22502 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@ includedir=@includedir@/libpng14
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.4.0beta87
+Version: 1.4.0beta88
 Libs: -L${libdir} -lpng14
 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index a3b59cbc00bc2363bfe1e74a77938005ca281b7b..2a32eec8bd0fcd48140b174e555b24190c245bc5 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 570a1c3c97235d911260c55b8583848d7122218b..c4cb3712a0d2e3d3fdfd3e0f26c532ed50c79ee6 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 93b4673c803873ed32bca1e47d83c18dd1c97712..dbdc112fe0ebf16b959bf8bcc01d3663b8ae8fbf 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -23,7 +23,7 @@ LN_SF = ln -f -s
 
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index cdae56129289b9b4423838f7cd222b5f57f45092..ae1a6235422077b017f5664ebda8ee03601c7b92 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index f92686446ea48cedb2d8a49d11dad6379c8975a6..63f1fc5361295af033696d7cc4460c5dd4270896 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -68,7 +68,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng14
 PNGMAJ = 14
 CYGDLL = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index f41c9edebe144fd00caaff13c0b1b17bf02260f6..074c05b0ea5df7567a49e2853a9afe68208d5548 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -22,7 +22,7 @@ ZLIBINC=../zlib
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index 4799c1c5e8270914c224441e3eaf38a331562e47..d430af143850f8516ad9098630765f970b1ff944 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -8,7 +8,7 @@
 
 # Library name:
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng14
 
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index 0bf2146941424fd416fba038a29ce7c742edd280..83d16e5436af14d766ef6a210c43acb4b573c135 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -16,7 +16,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index d86e7183c21e5ee996df9744bdd8d3f506820b53..1517161e58b4636714af84bef982d444bee2b829 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index ec08bf6a581cee4a31524718fe70547d5d54e605..ae4324cd83fc3479b05aa1470697f6c01e51e504 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index 1acc13ec482846de224a58450a4c31f2b593c75f..a2fd67ec9e6c11b2cb5652885aa3f9b5313a4f1d 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -21,7 +21,7 @@ ZLIBINC=/opt/zlib/include
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 8bfb5144e2f99262b61e1c2af51a808435e84bc9..5269ab359fcee7f7b044e8ba995902507b5f710a 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw
index 277f41d98ad011779a08d6f133e3241fc644ee38..f443e0261f2349f2b90ef36f386f046d3fbb37db 100644
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -68,7 +68,7 @@ CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
 LIBNAME = libpng14
 PNGMAJ = 14
 MINGDLL = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 4e9a75a98ff35e9026f31d2a344609ae057e80e7..3f94c635d79da7a8892c96d0a12f3fa4ade9d095 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng14
 
 LIB=	png14
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.4.0beta87
+SHLIB_MINOR=	1.4.0beta88
 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 5f7d2d40c82403602fdf043f19cebb15b4edb613..239c70810416e3639d67eec8145c08b71f799217 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.4.0beta87
+SHLIB_MINOR=	1.4.0beta88
 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 73982755ca61bf2e1ab9134a3ad2eb34e4fee9be..49192f1a2d8ee19658096476338f81aeae943bfb 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 7cd67c96e3f243b7835e2de190ca6a0943d0ea5b..458c579ac680e1d998c60368ca34f2102e6404c1 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@ LIBDIR=	${PREFIX}/lib
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.4.0beta87
+SHLIB_MINOR=	1.4.0beta88
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 602694f979d77c387e62ef81212ef8a4aec33654..0148427c9f3008423bc13b0be955a272a8a7bd3f 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -12,7 +12,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index d98863a894c12d87dbc9eeec65bc40411c9402ea..3e85bb34748edba695e0c885274fdffeae54f5a8 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 0d3a93cf6923fb7919569ce046f9e507aa7487ee..b55feb79277dc4070049871d8ebfa239fa63d407 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME=libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index 81f4fa6dd4c4fedd5535713cc9ec55d73a5b1236..0cb1401dd3f37e30836e9ce8d3d2492ccd44921f 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -11,7 +11,7 @@
 
 # Library name:
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng14
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index d5201690711b1776d6d39bea496885ef5dd284da..286a053f27ea0a5b391815fafa01c9e00ce1b847 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -11,7 +11,7 @@
 # Library name:
 LIBNAME = libpng14
 PNGMAJ = 14
-PNGMIN = 1.4.0beta87
+PNGMIN = 1.4.0beta88
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 793bc371af11029f24d68af4696ded90d4d69f34..a9a00c8fe779697a1ad83df959d4e499dc4a85a3 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.4.0beta87
+; Version 1.4.0beta88
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
diff --git a/scripts/pngwin.def b/scripts/pngwin.def
index dbbf622dc987a337f8a4715c426fcdd84d915d29..45c45ec6f9eb6bb7d5e0cfc571251adb767241f0 100644
--- a/scripts/pngwin.def
+++ b/scripts/pngwin.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.4.0beta87
+;Version 1.4.0beta88
   png_build_grayscale_palette
   png_chunk_error
   png_chunk_warning