Libpng 1.4.8 - July 7, 2011 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-1.4.8.tar.xz (LZMA-compressed, recommended) libpng-1.4.8.tar.gz libpng-1.4.8.tar.bz2 Source files with CRLF line endings (for Windows), without the "configure" script lpng148.7z (LZMA-compressed, recommended) lpng148.zip Other information: libpng-1.4.8-README.txt libpng-1.4.8-LICENSE.txt Changes since the last public release (1.4.7): Undef "_ALL_SOURCE" for AIX, to prevent "jmpbuf" from being redefined. Copied png_debug macros from pngpriv.h into pngtest.c and removed "#include pngpriv.h" from pngtest.c, to avoid setting a bad example. Pass "" instead of '\0' to png_default_error() in png_err(). This mistake was introduced in libpng-1.2.20beta01. Check for up->location !PNG_AFTER_IDAT when writing unknown chunks before IDAT. Ported bugfix in pngrtran.c from 1.5.3: when expanding a paletted image, always expand to RGBA if transparency is present. Ported bugfix in pngrtran.c from 1.5.3: Ensure coefficients are OK for png_rgb_to_gray_fixed(); check for integer overflow in png_set_rgb_to_gray(). Fixed uninitialized memory read in png_format_buffer() (Bug report by Frank Busse, related to CVE-2004-0421). Fixed error in "ACCURATE" 16-to-8 scaling (John Bowler). Check for sCAL chunk too short. Send comments/corrections/commendations to glennrp at users.sourceforge.net or to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement). Glenn R-P