Getting stuck on the Updating Setup Files loading screen may indicate that the Blizzard Update Agent is having issues installing the game.
This is required only if you are using the emulator or the USB cable.
You do not need setup software if you are using just the wireless companion.
22.214.171.124650.0 - Last Final Update 126.96.36.199650.0a - Development Update 'a' based on Final Update '0' 188.8.131.52650.0b - Development Update 'b' based on Final Update '0a' 184.108.40.206650.0c - Development Update 'c' based on Final Update '0b' 220.127.116.11650.0d - Development Update 'd' based on Final Update '0c' 18.104.22.168650.0e - Development Update 'e' based on Final Update '0d' 22.214.171.124650.1 - Current Final Update '1' that has all the development updates from '0a' to '0e'Lib Spell Name2SID-1.1, Lib Spell Name2SID-1.1-Passives and Lib Spell Name2SID-1.1-Populator (the later is currenly only available through SVN) have all, as of version 1.1.09, been released under an MIT license.
See file included in each addon's folder for details.
You can find the latest Combo Update for your operating system located on Apple's Support Download When an older OS has no more incremental updates, you will need to upgrade to a new OS to obtain newer drivers and updates.