Mac 
MacBook Pro (Retina, 13-inch, Late 2013): Keyboard and Multi-Touch trackpad may become unresponsive
Apple is aware of rare circumstances where the built-in keyboard and Multi-Touch trackpad may become unresponsive on 13-inch MacBook Pro with Retina display (Late 2013) computers.
MacBook Air (Mid 2013): FaceTime HD Camera might not work after OS X v10.8.5 update
The FaceTime HD Camera on your MacBook Air (Mid 2013) stops working with 32-bit applications (such as Skype, iMovie, Final Cut Pro, and QuickTime Player) after installing the OS X Mountain Lion v10.8.5 update.
Screen flashes when using iPhoto print products
The display on your iMac (21.5-inch, Late 2013) computer may flash when using iPhoto print products in Full Screen mode.
iMac (Late 2013): Recommended software and firmware updates
OS X software and firmware updates are available for iMac (21.5-inch, Late 2013) and iMac (27-inch, Late 2013) computers.
iMac (Late 2013): Memory specifications
Learn which kinds of memory to use with your iMac (21.5-inch, Late 2013) or iMac (27-inch, Late 2013) computer.
iMac (Late 2013): iTunes audio distorts via Thunderbolt display
iTunes audio may have distortion such as pops, crackles, or drops when played through a Thunderbolt display.
MacBook Air (Mid 2013): FaceTime HD Camera might not work after OS X 10.8.5 update
The FaceTime HD Camera on your MacBook Air (Mid 2013) stops working with 32-bit applications (such as Skype, iMovie, Final Cut Pro, and QuickTime Player) after installing the OS X Mountain Lion v10.8.5 update.
MacBook Air (Mid 2013): Keyboard/trackpad inoperative, black screen, or alert messages when installing Windows 7
When installing Windows 7 using the Boot Camp Assistant on MacBook Air (Mid 2013) computers, the following issues might occur: The keyboard and trackpad are inoperative Black screen "Press any key to boot to CD or DVD" or "CDBOOT: Couldn’t … Continue reading
