Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ iMac 10.8.5 Supplemental Update 1.0 Agen G. N. Schmitz Recommended for iMac models released in late September 2013 (see '[1]Apple Updates iMac with Faster CPUs and 802.11ac Wi-Fi,' 24 September 2013), Apple has issued [2]iMac 10.8.5 Supplemental Update 1.0 for those models with an NVIDIA GeForce GT 750M graphics processor running OS X 10.8.5 Mountain Lion. The update fixes two bugs ' one that causes external drives to eject after the iMac goes to sleep and another the prevented certain USB Bluetooth adapters from working. (Free update, 17.1 MB) References 1. http://tidbits.com/article/14131 2. http://support.apple.com/kb/DL1700 .