libpng-1.4.3 and 1.2.44 are available from
and libpng-1.5.0beta31 is available from
Added missing quotation marks in the aix block of configure.ac
The new "vstudio" project was missing from the zip and 7z distributions.
Rewrote png_process_IDAT_data to consistently treat extra data as warnings
and handle end conditions more cleanly.
Removed the now-redundant check for out-of-bounds new_row from example.c
Changed char *msg to PNG_CONST char *msg in pngrutil.c
Stop memory leak when reading a malformed sCAL chunk.