The OS X 10.8.5 Supplemental Update is recommended for all users running OS X Mountain Lion 10.8.5. This update:
- Resolves an issue that may prevent certain applications from using the FaceTime HD camera on mid-2013 MacBook Air systems.
- Fixes an issues that may cause external drives to be ejected after the computers goes to sleep.
- Addresses an issue that may prevent HDMI audio from working after waking from sleep.
- Fixes an issue that may prevent certain USB Bluetooth adapters from working.