Bit of a mixed grab bag this one with changes based on the feedback over the past few weeks.
There's now a Medium Cubic dungeon size. The number of rooms sits firmly between the Small and Big sizes and there's 3 new achievements to go with it.
The game's soundtrack should now be available in the Steam media player thingy.
There's 4 new challenge room designs, one for each of the four main areas. They're a bit harder than the usual ones.
There's 4 new enemies and 3 new items.
Various bits and bobs gameplay changes, such as defensive orbs now being half as effective against bosses, some dungeon special room layout tweaks, etc.