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Libpng 1.2.57 - December 29, 2016

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-1.2.57.tar.xz (LZMA-compressed, recommended)

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

   libpng-1.2.57-no-config.tar.xz (LZMA-compressed, recommended)

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

Project files

Other information:

   libpng-1.2.57-[previous version]-diff.txt
   libpng-1.2.57-*.asc (armored detached GPG signatures)

Changes since the last public release (1.2.56):

  Fix typos in libpng.3 synopses (Eric S. Raymond).
  Fixed undefined behavior in png_push_save_buffer(). Do not call
    memcpy() with a null source, even if count is zero (Leon Scroggins III).
  Fixed a potential null pointer dereference in png_set_text_2() (bug report
    and patch by Patrick Keshishian).

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Glenn R-P