[libpng15] Bump version to 1.5.11beta01
diff --git a/ANNOUNCE b/ANNOUNCE
index dbc2ed1..9445713 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,64 +1,36 @@
 
-Libpng 1.5.10 - March 29, 2012
+Libpng 1.5.11beta01 - April 12, 2012
 
-This is a public release of libpng, intended for use in production codes.
+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.
 
 Files available for download:
 
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.5.10.tar.xz (LZMA-compressed, recommended)
-   libpng-1.5.10.tar.gz
-   libpng-1.5.10.tar.bz2
+   1.5.11beta01.tar.xz (LZMA-compressed, recommended)
+   1.5.11beta01.tar.gz
+   1.5.11beta01.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lpng1510.7z  (LZMA-compressed, recommended)
-   lpng1510.zip
+   lp1511b01.7z  (LZMA-compressed, recommended)
+   lp1511b01.zip
 
 Other information:
 
-   libpng-1.5.10-README.txt
-   libpng-1.5.10-LICENSE.txt
+   1.5.11beta01-README.txt
+   1.5.11beta01-LICENSE.txt
 
-Changes since the last public release (1.5.9):
+Changes since the last public release (1.5.10):
 
-  Removed two useless #ifdef directives from pngread.c and one from pngrutil.c
-  Always put the CMAKE_LIBRARY in "lib" (removed special WIN32 case).
-  Removed empty vstudio/pngstest directory (Clifford Yapp).
-  Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from
-    pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
-    now that png_ptr->buffer is inaccessible to applications, the special
-    handling is no longer useful.
-  Fixed bug with png_handle_hIST with odd chunk length (Frank Busse).
-  Added PNG_SAFE_LIMITS feature to pnglibconf.dfa and code in pngconf.h
-    to reset the user limits to safe ones if PNG_SAFE_LIMITS is defined.
-    To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED" on the configure
-    command or put "#define PNG_SAFE_LIMITS_SUPPORTED" in pnglibconf.h.
-  Revised the SAFE_LIMITS feature to be the same as the feature in libpng16.
-  Added information about the new limits in the manual.
-  Updated Makefile.in
-  Removed unused "current_text" members of png_struct and the png_free()
-    of png_ptr->current_text from pngread.c
-  Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
-  Fixed CMF optimization of non-IDAT compressed chunks, which was added at
-    libpng-1.5.4.  It sometimes produced too small of a window.
-  Reject all iCCP chunks after the first, even if the first one is invalid.
-  Added palette-index checking. Issue a png_benign_error() if an invalid
-    index is found.
-  Revised example.c to put text strings in a temporary character array
-    instead of directly assigning string constants to png_textp members.
-    This avoids compiler warnings when -Wwrite-strings is enabled.
-  Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
-  Revised png_set_text_2() to avoid potential memory corruption (fixes
-    CVE-2011-3048).
+Version 1.5.11 [April 12, 2012]
 
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe)
-or to glennrp at users.sourceforge.net
+to subscribe) or to glennrp at users.sourceforge.net
 
 Glenn R-P
diff --git a/CHANGES b/CHANGES
index 70af827..d62444d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3854,6 +3854,8 @@
   Revised png_set_text_2() to avoid potential memory corruption (fixes
     CVE-2011-3048).
 
+Version 1.5.11 [April 12, 2012]
+
 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 b511789..c9a8dde 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,7 +35,7 @@
 
 set(PNGLIB_MAJOR 1)
 set(PNGLIB_MINOR 5)
-set(PNGLIB_RELEASE 10)
+set(PNGLIB_RELEASE 11)
 set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
 set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
 
@@ -225,7 +225,7 @@
 # SET UP LINKS
 if(PNG_SHARED)
   set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#   VERSION 15.${PNGLIB_RELEASE}.1.5.10
+#   VERSION 15.${PNGLIB_RELEASE}.1.5.11beta01
     VERSION 15.${PNGLIB_RELEASE}.0
     SOVERSION 15
     CLEAN_DIRECT_OUTPUT 1)
diff --git a/LICENSE b/LICENSE
index b72d125..3858bcb 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 1.5.10, March 29, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.11beta01, April 12, 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
@@ -108,4 +108,4 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-March 29, 2012
+April 12, 2012
diff --git a/README b/README
index e821ee4..eadbd03 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.5.10 - March 29, 2012 (shared library 15.0)
+README for libpng version 1.5.11beta01 - April 12, 2012 (shared library 15.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/configure b/configure
index df2d173..6994a9b 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for libpng 1.5.10.
+# Generated by GNU Autoconf 2.68 for libpng 1.5.11beta01.
 #
 # Report bugs to <png-mng-implement@lists.sourceforge.net>.
 #
@@ -570,8 +570,8 @@
 # Identity of this package.
 PACKAGE_NAME='libpng'
 PACKAGE_TARNAME='libpng'
-PACKAGE_VERSION='1.5.10'
-PACKAGE_STRING='libpng 1.5.10'
+PACKAGE_VERSION='1.5.11beta01'
+PACKAGE_STRING='libpng 1.5.11beta01'
 PACKAGE_BUGREPORT='png-mng-implement@lists.sourceforge.net'
 PACKAGE_URL=''
 
@@ -1321,7 +1321,7 @@
   # 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 1.5.10 to adapt to many kinds of systems.
+\`configure' configures libpng 1.5.11beta01 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1391,7 +1391,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libpng 1.5.10:";;
+     short | recursive ) echo "Configuration of libpng 1.5.11beta01:";;
    esac
   cat <<\_ACEOF
 
@@ -1502,7 +1502,7 @@
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libpng configure 1.5.10
+libpng configure 1.5.11beta01
 generated by GNU Autoconf 2.68
 
 Copyright (C) 2010 Free Software Foundation, Inc.
@@ -1925,7 +1925,7 @@
 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 1.5.10, which was
+It was created by libpng $as_me 1.5.11beta01, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   $ $0 $@
@@ -2740,7 +2740,7 @@
 
 # Define the identity of the package.
  PACKAGE='libpng'
- VERSION='1.5.10'
+ VERSION='1.5.11beta01'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2804,10 +2804,10 @@
 
 
 
-PNGLIB_VERSION=1.5.10
+PNGLIB_VERSION=1.5.11beta01
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=5
-PNGLIB_RELEASE=10
+PNGLIB_RELEASE=11
 
 
 
@@ -13417,7 +13417,7 @@
 # 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 1.5.10, which was
+This file was extended by libpng $as_me 1.5.11beta01, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -13483,7 +13483,7 @@
 cat >>$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 1.5.10
+libpng config.status 1.5.11beta01
 configured by $0, generated by GNU Autoconf 2.68,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 023aba4..d425297 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,15 +18,15 @@
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.5.10], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.5.11beta01], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.5.10
+PNGLIB_VERSION=1.5.11beta01
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=5
-PNGLIB_RELEASE=10
+PNGLIB_RELEASE=11
 
 dnl End of version number stuff
 
diff --git a/libpng-manual.txt b/libpng-manual.txt
index d55e80a..ff5aae8 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.10 - March 29, 2012
+ libpng version 1.5.11beta01 - April 12, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.10 - March 29, 2012
+ libpng versions 0.97, January 1998, through 1.5.11beta01 - April 12, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -4597,13 +4597,13 @@
 
 XIV. Y2K Compliance in libpng
 
-March 29, 2012
+April 12, 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 1.5.10 are Y2K compliant.  It is my belief that earlier
+upward through 1.5.11beta01 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 bba25af..a6a073e 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "March 29, 2012"
+.TH LIBPNG 3 "April 12, 2012"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.5.10
+libpng \- Portable Network Graphics (PNG) Reference Library 1.5.11beta01
 .SH SYNOPSIS
 \fI\fB
 
@@ -981,7 +981,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.10 - March 29, 2012
+ libpng version 1.5.11beta01 - April 12, 2012
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -992,7 +992,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.10 - March 29, 2012
+ libpng versions 0.97, January 1998, through 1.5.11beta01 - April 12, 2012
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -5579,13 +5579,13 @@
 
 .SH XIV. Y2K Compliance in libpng
 
-March 29, 2012
+April 12, 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 1.5.10 are Y2K compliant.  It is my belief that earlier
+upward through 1.5.11beta01 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
@@ -5798,6 +5798,7 @@
  1.5.9               15    10509  15.so.15.9[.0]
  1.5.10beta01-05     15    10510  15.so.15.10[.0]
  1.5.10              15    10510  15.so.15.10[.0]
+ 1.5.11beta01        15    10511  15.so.15.11[.0]
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -5854,7 +5855,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.5.10 - March 29, 2012:
+Libpng version 1.5.11beta01 - April 12, 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).
 
@@ -5877,7 +5878,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.10, March 29, 2012, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.11beta01, April 12, 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
@@ -5976,7 +5977,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-March 29, 2012
+April 12, 2012
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index 8449f17..2b66dbf 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "March 29, 2012"
+.TH LIBPNGPF 3 "April 12, 2012"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.5.10
+libpng \- Portable Network Graphics (PNG) Reference Library 1.5.11beta01
 (private functions)
 .SH SYNOPSIS
 \fB#include \fI"pngpriv.h"
diff --git a/png.5 b/png.5
index 34f0e59..40d77ad 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "March 29, 2012"
+.TH PNG 5 "April 12, 2012"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index cba18ba..6a6516b 100644
--- a/png.c
+++ b/png.c
@@ -14,7 +14,7 @@
 #include "pngpriv.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_5_10 Your_png_h_is_not_version_1_5_10;
+typedef png_libpng_version_1_5_11beta01 Your_png_h_is_not_version_1_5_11beta01;
 
 /* Tells libpng that we have already handled the first "num_bytes" bytes
  * of the PNG file signature.  If the PNG data is embedded into another
@@ -655,13 +655,13 @@
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.5.10 - March 29, 2012" PNG_STRING_NEWLINE \
+     "libpng version 1.5.11beta01 - April 12, 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 "libpng version 1.5.10 - March 29, 2012\
+      return "libpng version 1.5.11beta01 - April 12, 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 4e0dee1..71d3e21 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.5.10 - March 29, 2012
+ * libpng version 1.5.11beta01 - April 12, 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.)
@@ -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 1.5.10 - March 29, 2012: Glenn
+ *   libpng versions 0.97, January 1998, through 1.5.11beta01 - April 12, 2012: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -174,6 +174,7 @@
  *    1.5.9                   15    10509  15.so.15.9[.0]
  *    1.5.10beta01-05         15    10510  15.so.15.10[.0]
  *    1.5.10                  15    10510  15.so.15.10[.0]
+ *    1.5.11beta01            15    10511  15.so.15.11[.0]
  *
  *   Henceforth the source version will match the shared-library major
  *   and minor numbers; the shared-library major version number will be
@@ -205,7 +206,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.5.10, March 29, 2012, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.11beta01, April 12, 2012, are
  * Copyright (c) 2004, 2006-2012 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:
@@ -317,13 +318,13 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 29, 2012
+ *    April 12, 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 1.5.10 are Y2K compliant.  It is my belief that
+ *    upward through 1.5.11beta01 are Y2K compliant.  It is my belief that
  *    earlier versions were also Y2K compliant.
  *
  *    Libpng only has two year fields.  One is a 2-byte unsigned integer
@@ -381,9 +382,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.5.10"
+#define PNG_LIBPNG_VER_STRING "1.5.11beta01"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.5.10 - March 29, 2012\n"
+     " libpng version 1.5.11beta01 - April 12, 2012\n"
 
 #define PNG_LIBPNG_VER_SONUM   15
 #define PNG_LIBPNG_VER_DLLNUM  15
@@ -391,13 +392,13 @@
 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   5
-#define PNG_LIBPNG_VER_RELEASE 10
+#define PNG_LIBPNG_VER_RELEASE 11
 
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero:
  */
 
-#define PNG_LIBPNG_VER_BUILD  0
+#define PNG_LIBPNG_VER_BUILD  01
 
 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -414,7 +415,7 @@
 #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with
                                        PNG_LIBPNG_BUILD_PRIVATE */
 
-#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE
+#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_BETA
 
 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
  * We must not include leading zeros.
@@ -422,7 +423,7 @@
  * 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 10510 /* 1.5.10 */
+#define PNG_LIBPNG_VER 10511 /* 1.5.11 */
 
 /* Library configuration: these options cannot be changed after
  * the library has been built.
@@ -544,7 +545,7 @@
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef char* png_libpng_version_1_5_10;
+typedef char* png_libpng_version_1_5_11beta01;
 
 /* Three color definitions.  The order of the red, green, and blue, (and the
  * exact size) is not important, although the size of the fields need to
diff --git a/pngconf.h b/pngconf.h
index bbb547f..1daf8d5 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.5.10 - March 29, 2012
+ * libpng version 1.5.11beta01 - April 12, 2012
  *
  * Copyright (c) 1998-2012 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpriv.h b/pngpriv.h
index e76a579..0ceb6b8 100644
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -6,7 +6,7 @@
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
- * Last changed in libpng 1.5.10 [March 29, 2012]
+ * Last changed in libpng 1.5.10 [(PENDING RELEASE)]
  *
  * This code is released under the libpng license.
  * For conditions of distribution and use, see the disclaimer
diff --git a/pngstruct.h b/pngstruct.h
index 43a45cd..e062738 100644
--- a/pngstruct.h
+++ b/pngstruct.h
@@ -5,7 +5,7 @@
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
- * Last changed in libpng 1.5.9 [March 29, 2012]
+ * Last changed in libpng 1.5.9 [(PENDING RELEASE)]
  *
  * This code is released under the libpng license.
  * For conditions of distribution and use, see the disclaimer
diff --git a/pngtest.c b/pngtest.c
index 0295840..7367b49 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1817,4 +1817,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef png_libpng_version_1_5_10 Your_png_h_is_not_version_1_5_10;
+typedef png_libpng_version_1_5_11beta01 Your_png_h_is_not_version_1_5_11beta01;
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 938e7da..173e9d4 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.5.10 - March 29, 2012
+libpng version 1.5.11beta01 - April 12, 2012
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 0060f12..213a322 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.5.10 - March 29, 2012
+ * libpng version 1.5.11beta01 - April 12, 2012
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index 46611a5..6cda45e 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,9 +1,9 @@
 
-Makefiles for  libpng version 1.5.10 - March 29, 2012
+Makefiles for  libpng version 1.5.11beta01 - April 12, 2012
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng15.so.15.1.5.10)
+                       (gcc, creates libpng15.so.15.1.5.11beta01)
  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 libpng15.so.15.1.5.10)
+                       (gcc, creates libpng15.so.15.1.5.11beta01)
  makefile.freebsd  =>  FreeBSD makefile
  makefile.gcc      =>  Generic gcc makefile
  makefile.hpgcc    =>  HPUX makefile using gcc
@@ -35,12 +35,12 @@
  makefile.os2      =>  OS/2 Makefile (gcc and emx, requires libpng.def)
  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng15.so.15.1.5.10)
+                       creates libpng15.so.15.1.5.11beta01)
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng15.so.15.1.5.10)
+                       creates libpng15.so.15.1.5.11beta01)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng15.so.15.1.5.10)
+                       creates libpng15.so.15.1.5.11beta01)
  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 4dda9cd..12baf86 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -11,7 +11,7 @@
 
 # Modeled after libxml-config.
 
-version=1.5.10
+version=1.5.11beta01
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index f96298c..a5ff028 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.5.10
+Version: 1.5.11beta01
 Libs: -L${libdir} -lpng15
 Cflags: -I${includedir}
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index fbc3d78..1f08d8e 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@
 
 VERMAJ = 1
 VERMIN = 5
-VERMIC = 10
+VERMIC = 11
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index f1c75b6..7d3ebc7 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -10,7 +10,7 @@
 # Library name:
 LIBNAME = libpng15
 PNGMAJ = 15
-RELEASE = 10
+RELEASE = 11
 
 # Shared library names:
 LIBSO=$(LIBNAME).so
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index c447f12..acfd295 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -17,7 +17,7 @@
 
 LIB=	png15
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.5.10
+SHLIB_MINOR=	1.5.11beta01
 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 d154810..878a0b1 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -17,7 +17,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	15
-SHLIB_MINOR=	1.5.10
+SHLIB_MINOR=	1.5.11beta01
 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.openbsd b/scripts/makefile.openbsd
index 3a1b84e..6630057 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -11,7 +11,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	15
-SHLIB_MINOR=	1.5.10
+SHLIB_MINOR=	1.5.11beta01
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 6facf39..f84928d 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -3,7 +3,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng 1.5.10 - March 29, 2012 */
+/* Libpng 1.5.11beta01 - April 12, 2012 */
 
 /* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
 
diff --git a/scripts/symbols.def b/scripts/symbols.def
index bf958bc..1ea40f3 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.5.10
+;Version 1.5.11beta01
  png_access_version_number @1
  png_set_sig_bytes @2
  png_sig_cmp @3