Here's whatsnew:
scsp:
- Fixed slot pitch LFO. Amplitude LFO is probably more accurate now too.
emulated bios:
- Added Backup RAM manager functions.
opengl video core:
- Fixed a bug with VDP2 2x2 plane size rotation screens.
- Optimized tile mode rotation screens
- Added support for VDP1 polyline.
software video core:
- FPS display now working.
- Added support for VDP2 rotation without coefficient tables.
- Fixed a bug in VDP2 24 BPP bitmap mode.
- Fixed several clipping bugs in Normal and Scaled Sprites.
- Fixed a bug with VDP2 2x2 plane size rotation screens.
- Optimized tile mode rotation screens.
linux port:
- Cursor now disappears after 2 seconds of inactivity in the gtk port.
macos port:
- New high resolution icon.
- Add some missing OS X application property list keys.
windows port:
- Fixed window position bug.
- Other bug fixes.
general:
- Tweaked frame timing code so it's more accurate.
- Re-implemented save states.
- Some internal changes do so that sound, video, and cd cores can be changed
at runtime.

Get it here:
http://yabause.org/download/

-Trebor