Dan Potter and the Cryptic Allusion Team have today released KOS 1.1.8, heres whats new in this release:

Important changes include: bug fixes, OggVorbis updated to 1.0Final, new public maple API, non-square PNG loading, dcload-ip support while using lwIP, more generic queueing sound driver, Trilinear’s KGL Z-Clipper, Japanese support for bios fonts, paletted texture support, working CDDA support, conio serial-console support, and the removal of several deprecated functions (see release notes).

Theres an absolute heapful of changes etc, so for more information and to download urself a copy head on over to http://gamedev.allusion.net/