Libpng 1.2.28 - April 30, 2008

This is a public release of libpng, intended for use in production codes.

Files available for download:

Source files with LF line endings (for Unix/Linux) and with a
"configure" script

   libpng-1.2.28.tar.gz
   libpng-1.2.28.tar.lzma
     (Get the lzma codec from <http://tukaani.org/lzma>).
   libpng-1.2.28.tar.bz2

Source files with LF line endings (for Unix/Linux) without the
"configure" script

   libpng-1.2.28-no-config.tar.gz
   libpng-1.2.28-no-config.tar.lzma
   libpng-1.2.28-no-config.tar.bz2

Source files with CRLF line endings (for Windows), without the
"configure" script

   lpng1228.zip
   lpng1228.7z
   lpng1228.tar.bz2

Project files

   libpng-1.2.28-project-netware.zip
   libpng-1.2.28-project-wince.zip

Other information:

   libpng-1.2.28-README.txt
   libpng-1.2.28-KNOWNBUGS.txt
   libpng-1.2.28-LICENSE.txt
   libpng-1.2.28-Y2K-compliance.txt
   libpng-1.2.28-[previous version]-diff.txt

Changes since the last public release (1.2.26):

version 1.2.28 [April 30, 2008]

  Fixed bug (introduced in libpng-1.0.6) with handling zero-length
    unknown chunks.
  Added more information about png_set_keep_unknown_chunks() to the
    documetation.
  Revised documentation about unknown chunk and user chunk handling.
  Issue a png_warning when reading a tRNS chunk with out-of-range samples.
  Added check for NULL ptr in TURBOC version of png_free_default().
  Removed several unnecessary checks for NULL before calling png_free().
  Revised png_set_tRNS() so that calling it twice removes and invalidates
    the previous call.
  Revised pngtest to check for out-of-range tRNS samples.
  Added AC_LIBTOOL_WIN32_DLL to configure.ac
  Added MAINTEINERCLEANFILES variable to Makefile.am
  Avoid changing color_type from GRAY to RGB by
    png_set_expand_gray_1_2_4_to_8().
  Fix broken URL for rfc2083 in png.5 and libpng-*.txt
  Removed a stray object file from contrib/gregbook

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Glenn R-P