- 0.136u1: Fabio Priuli added driver data struct and save states to Block Hole.
- 0.135u4: Fabio Priuli converted Block Hole to use Konami video devices.
- 0.126u4: Andrew Gardner merged memory maps in Block Hole.
- 0.124: RansAckeR added DIP locations and fixed unknown dipswitches in Block Hole. Changed 'Unknown' to 'Unused' dipswitches.
- 0.99u4: Pierpaolo Prazzoli fixed K051960 sprite drawing and priority in clone Quarth.
- 0.36b13: Added Block Hole (Konami 1989).
- 0.36b5: Nicola Salmoria added Quarth (Japan) (Konami 1989).
- 11th September 1999: Nicola sent in a driver for Quarth (aka Block Hole).