The PC edition will go ahead on Monday 1st Feb, but the Mac edition will unfortunately be delayed by up to two weeks. This is to ensure that the experiences between all platforms will be exactly the same and avoid any bugs that could arise before sufficient testing. Apologies for the delay but rest assured it will be worth the wait!
MAC version delay
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 2476188 · previouslive branch
Steam updated · First observed
Build 2476247 · earlyreview branch
Steam updated · First observed