Indeed, this was missing. I just added a Changelog section. But to answer you directly:
Improvements over V2.1:
- Fixed Sonya broken leg animation while knocked waiting for fatality
- Removed Kano red spots from all sprites
- Removed Rayden yellow spots from all sprites
- Improved Rayden ending 1 screen (improved lightning, blue eyes and face lining)
- Small improvement to Liu Kang ending 2 screen (the blurred faces at the background)
- Improved Liu Kang head rotation on J. Cage fatality (issue introduced in V1.7)
- Improved J. Cage head rotation on J. Cage fatality (issue introduced in V1.7)