uoYabause the unofficial version of Yabause the SEGA Saturn Emulator for WIndows and Android has been updated, heres whats new:

uoYabause v0.3.9 Changelog:
Faster rotate screen generation
Implement vertical cell scroll
Fix bug: Transparent polygons are not drawn on GPU tessellation mode.
Improve VDP1 transparent for OpenGL ES 3.1 devices

More info: http://www.uoyabause.org/