Apple released software and firmware updates late on Wednesday: the Apple Mac Pro SMC Firmware update 1.1 for Mac Pro, the iMac Software Update 1.0, and Boot Camp Beta 1.4.
1. The Apple Mac Pro SMC Firmware Update 1.1 adjusts fan behavior on the Mac Pro.
2. The iMac Software Update 1.0 provides bug fixes for 20- and 24-inch iMacs with 2.0, 2.4, and 2.8 GHz processors.