Libpng 1.5.23 - July 23, 2015
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-1.5.23.tar.xz (LZMA-compressed, recommended)
libpng-1.5.23.tar.gz
libpng-1.5.23.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lpng1523.7z (LZMA-compressed, recommended)
lpng1523.zip
Other information:
libpng-1.5.23-README.txt
libpng-1.5.23-LICENSE.txt
libpng-1.5.23-*.asc (armored detached GPG signatures)
Changes since the last public release (1.5.22):
Removed unused PNG_SET_CHUNK_[CACHE|MALLOC]_LIMIT_SUPPORTED definitions
from pnglibconf.h.prebuilt (Andrew Church).
Replaced "unexpected" with an integer in pngset.c where a long was
expected, to avoid a compiler warning when PNG_DEBUG > 1.
Fix typecast in a png_debug2() statement in png_set_text_2() to
avoid a compiler warning in PNG_DEBUG builds.
Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
Avoid a harmless potential integer overflow in png_XYZ_from_xy() (Bug
report from Christopher Ferris).
Removed WRITE_WEIGHTED_FILTERED code, to save a few kbytes of the
compiled library size. It never worked properly and as far as we can
tell, no one uses it. The png_set_filter_heuristics() and
png_set_filter_heuristics_fixed() APIs are retained but deprecated
and do nothing.
Quieted Coverity issues in pngvalid.c.
Removed non-working progressive reader 'skip' function.
Belatedly added Mans Rullgard to the list of Contributing Authors.
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Glenn R-P
