. Detection of numeric values inside strings passed as high & low.
. Proper handle the situations where high == low.
- Added XBM support for bundled GD library. (Marcus)
-- Added imagesavealpha() function. (Jukka Holappa, Pierre-Alain Joye)
- Added imagefilter() function. Allows application of various filters.
Only available with bundled GD. (Pierre-Alain Joye, Ilia)
-- Added imageistruecolor(). Only available with GD2. (Pierre-Alain Joye)
- Added antialiased drawing support to bundled GD. (Pierre-Alain Joye, Ilia)
. imageantialias($im, $flag) to (de)active antialias
. imageline antialias support