Mac OS X 10.9.5 was an update to Mac OS X 10.9 released on August 7, 2014. It had the following features: * Fixed an issue that prevented some Macs from automatically connecting to known Wi-Fi networks * Fixed issue causing the background or Apple logo to appear incorrectly on startup * Improved the reliability of waking from sleep * Included Safari 7.0.5 For detailed information about the security content of this update, see Apple security updates.