Release Notes: Deprecated use of libpng png_struct members and use of non-exported libpng functions have been eliminated. Pngcrush can now be built with system libpng-1.5.x.
Release Notes: This release is built with libpng-1.2.38. A confusing error message that stated, "the -cc option is not activated," was changed to, "the -cc option is not supported."
Release Notes: This version detects and reports the presence of the Xcode CgBI chunk. This version is built with libpng-1.2.36.