- Compatible with libpng 1.2.x and newer (tested with 1.2.50, 1.4.12, 1.5.17 and 1.6.3)
- Fix locating X color database on Mac OS X
- Fix sCAL handling (converting sng to png incorrectly swapped width and height)
- Fix several bugs in base64 handling, and clarify that it differs from RFC2045
- Fix dumping and validation of sRGB intent value.
- Fix handling of iTXt when 'translated' contained non-latin-1 data (it can contain arbitrary UTF-8 data)
- Fix support for long text blocks
- Fix validation of iTXt blocks
- Fix failure when multiple sng files where given on command line.