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CAVEAT.txt
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2004-05-31
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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 0.4.5 31-may-2004
-------------
* 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 integrity of PNG files.)
- The bit depth reductions below 8, for grayscale images, are
not implemented yet.
- The RGB(A)-to-palette reductions are not implemented yet.