Possession v12 is now available for download.
Rather than auto-assigning points to your stats when you kill an enemy, you can now choose which stats you want to increase from the character screen. There's a setting to set it back to the old style where it randomly assigns
Tombstones can now generate on levels where you've died, with the name of your character & date of their death.
The game will now try to autosave if it crashes. It does this in a new file, so it doesn't risk corrupting your old save.