cleaned up some bugs added png_set_filler() split up pngstub.c into pngmem.c, pngio.c, and pngerror.c added #define's to remove unwanted code moved png_info_init() to png.c added old_size into png_realloc() added functions to manually set filtering and compression info changed compression parameters based on image type optimized filter selection code added version info changed external functions passing floats to doubles (k&r problems?) put all the configurable stuff in pngconf.h enabled png_set_shift to work with paletted images on read added png_read_update_info() - updates info structure with transformations

cleaned up lots of bugs finished dithering and other stuff added test program changed name from pnglib to libpng

first beta release added png_large_malloc() and png_large_free() added png_size_t cleaned up some compiler warnings added png_start_read_image()

interfaced with zlib 0.8 fixed many reading and writing bugs saved using 3 spaces instead of tabs

cleaned up code and commented code simplified time handling into png_time created png_color_16 and png_color_8 to handle color needs cleaned up color type defines fixed various bugs made various names more consistent interfaced with zlib 0.71 cleaned up zTXt reader and writer (using zlib's Reset functions) split transformations into pngrtran.c and pngwtran.c

added pull reader split up pngwrite.c to several files added pnglib.txt added example.c cleaned up writer, adding a few new transformations fixed some bugs in writer interfaced with zlib 0.5 added K&R support added check for 64 KB blocks for 16 bit machines

added reader into png.h fixed small problems in stub file

initial work-in-progress release