
CAVEAT EMPTORE
==============
(known bugs, problems, or limitations in the current version of OptiPNG)


Legend
------
-  Minor bug, limitation, or incompletely-implemented feature.
   Not dangerous.
!  Bug that may cause OptiPNG to act differently than intended,
   but without causing accidental data loss.
   Inconvenient, but not dangerous.
!! Bug that may cause accidental data loss. Dangerous.
*  Another problematic issue, that is not necessarily a bug.


Version 0.4.3	12-aug-2003
-------------
* To avoid some bugs present in the latest libpng library
  (either libpng-1.0.15 or libpng-1.2.5), it is recommended to
  link OptiPNG statically to a patched version of libpng-1.0.15,
  supplied with the OptiPNG source distribution.
  (This is NOT a bug in OptiPNG itself.)
  When a newer, corrected libpng version will be officially
  released, this note will become obsolescent.
- The color palette reductions are implemented only partially.
  (This does NOT affect the file integrity.)
- The bit depth reductions below 8, for grayscale images, are
  not implemented yet.
- The RGB(A)-to-palette reductions are not implemented yet.

