Hello I have found some bugs on the mac release for this game.
1) The game is not optimized and does not run well for mac.
2) In game the mouse curser will not be in focus of the window and move outside of the game window after attempting to move.
The mac is on OS X El Capitan version 10.11.6, the specs are:
1.6 GHz Intel Core i5,
8 GB 1600 MHz DDR3
Intel HD Graphics 6000 1536 MB
It can run Minecraft well, even with many mods having no problem.