A new Mac version has been updated that fixes several issues including support for OSX Yosemite & Mavericks, boost tower bugs fixed (both choose & hover), several crashes removed, and the multiplayer versioning has been updated (affects who you matchmake with).
The 'dark levels' bug that affects some AMD Radeon graphics users is still present unfortunately. This is an issue with the AMD driver for the cards on OSX, and while we've tried several workarounds, we have not been able to avoid the driver bug. We've asked AMD to give us a pre-release driver, but at this point in time it does not look like they'll get permission to do so, so there may be a longer wait than desired until the driver is updated and released through Apple. We'll let you know if and when we have more information on this Mac problem that affects several users.
