Beautiful additional background added, floor-level platforms are easier to discern from lava, added an immersive visual effect (cinders on the wind), fixed a bug in which levelsets could stop loading, and fixed dead-player-running scenario. Improved support for OSX.
Source: Steam Community (opens in a new tab)
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 10141610 · public branch
Steam updated · First observed