The port is cleaned up to remove a lot of heavy dependencies.
New features
SDL2 resolution-independent window scaling, environmental audio, IRIX compatibility
regeneration during sleep, time dilation
iwd2 ability stacking, iwd ZZ* weapon bonuses
portrait.2da handling, avatar shadows, dialogF.tlk handling
Improved features
infravision
better compatibility with bgt, 10pp, ia, kelsey, dr
sdl2 input, mouse scrolling, opengl driver
iwd2 cg&lu, item (un)usability, avatar sizes, permanent clabs
ambients, verbal constants, random walk, walk sounds
bugfixes
c9c0912cb9