#1 - Feb. 20, 2013, 10:41 a.m.
Blizzard Post
In the upcoming Patch 5.2: The Thunder King, players using Mac OS X 10.6 will be presented with a message stating that we will no longer support Mac OS X 10.6. During this time, you will be able to continue playing; however, Mac OS X 10.6 will no longer be supported. We recommend Mac users upgrade their systems to Mac OS X 10.7.5 (or newer) as soon as possible.

We are giving players advance notice of this change to ensure Mac users have enough time to update their operating systems in preparation for the release of Patch 5.2: The Thunder King. We will provide an additional update when we no longer provide technical support for Mac OS X 10.6. Mac OS X 10.7 and Mac OS X 10.8 will continue to be fully supported per the recently posted Mac OS Support policy here. For more Mac-related information and help, visit the support site.