ANNOUNCE

Libpng 1.2.38beta01 - June 17, 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.

Files available for download:

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

   libpng-1.2.38beta01.tar.gz
   libpng-1.2.38beta01.tar.lzma
     (Get the lzma codec from <http://tukaani.org/lzma>).
   libpng-1.2.38beta01.tar.bz2

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

   libpng-1.2.38beta01-no-config.tar.gz
   libpng-1.2.38beta01-no-config.tar.lzma
   libpng-1.2.38beta01-no-config.tar.bz2

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

   lp1238b01.zip
   lp1238b01.7z
   lp1238b01.tar.bz2

Project files

   libpng-1.2.38beta01-project-netware.zip
   libpng-1.2.38beta01-project-wince.zip

Other information:

   libpng-1.2.38beta01-README.txt
   libpng-1.2.38beta01-KNOWNBUGS.txt
   libpng-1.2.38beta01-LICENSE.txt
   libpng-1.2.38beta01-Y2K-compliance.txt
   libpng-1.2.38beta01-[previous version]-diff.txt

Changes since the last public release (1.2.36):

version 1.2.37beta01 [May 14, 2009]
  Fixed inconsistency in pngrutil.c, introduced in libpng-1.2.36.  The
    memset() was using "png_ptr->rowbytes" instead of "row_bytes", which
    the corresponding png_malloc() uses (Joe Drew).
  Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
  Updated some of the makefiles in the scripts directory (merged with
    those in libpng-1.4.0beta57).

version 1.2.37beta02 [May 19, 2009]
  Fixed typo in libpng documentation (FILTER_AVE should be FILTER_AVG)
  Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
  Conditionally compile png_read_finish_row() which is not used by
    progressive readers.
  Added contrib/pngminim/preader to demonstrate building minimal progressive
    decoder, based on contrib/gregbook with embedded libpng and zlib.

version 1.2.37beta03 [May 20, 2009]
  In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
    is only one makefile in those directories, and revised the README files
    accordingly.
  Reformated sources in libpng style (3-space indentation, comment format)

version 1.2.37rc01 [May 27, 2009]
  No changes.

versions 1.2.37 and 1.0.45 [June 4, 2009]
  Reformatted several remaining "else statement;" and "if () statement;" into
    two lines.
  Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
    and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
  Added sections about the git repository and our coding style to the
    documentation (merged from libpng-1.4.0beta62)
  Added a section in the documentation about using png_get_io_ptr() in
    configure scripts to detect the presence of libpng.

version 1.2.38beta01 [June 17, 2009]
  Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
    multiple times and to specify the sample order in the tRNS chunk,
    because the ISO PNG specification has a typo in the tRNS table.
  Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
    PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
    available for ignoring known chunks even when not saving unknown chunks.
  Added PNG_NO_HANDLE_AS_UNKNOWN in the PNG_LEGACY_SUPPORTED block of
    pngconf.h, and moved the various unknown chunk macro definitions
    outside of the PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.

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