libpng 1.6.40.git
=================

This is a development version, not intended to be a public release.
It will be replaced by a public release, or by another development
version, at a later time.


libpng 1.6.39 - November 20, 2022
=================================

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


Files available for download
----------------------------

Source files with LF line endings (for Unix/Linux):

 * libpng-1.6.39.tar.xz (LZMA-compressed, recommended)
 * libpng-1.6.39.tar.gz

Source files with CRLF line endings (for Windows):

 * lpng1639.7z (LZMA-compressed, recommended)
 * lpng1639.zip

Other information:

 * README.md
 * LICENSE.md
 * AUTHORS.md
 * TRADEMARK.md


Changes from version 1.6.38 to version 1.6.39
---------------------------------------------

 * Changed the error handler of oversized chunks (i.e. larger than
   PNG_USER_CHUNK_MALLOC_MAX) from png_chunk_error to png_benign_error.
 * Fixed a buffer overflow error in contrib/tools/pngfix.
 * Fixed a memory leak (CVE-2019-6129) in contrib/tools/pngcp.
 * Disabled the ARM Neon optimizations by default in the CMake file,
   following the default behavior of the configure script.
 * Allowed configure.ac to work with the trunk version of autoconf.
 * Removed the support for "install" targets from the legacy makefiles;
   removed the obsolete makefile.cegcc.
 * Cleaned up the code and updated the internal documentation.


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