The 10.7.1 update is recommended for all users running OS X Lion and includes general operating system fixes that enhance the stability and compatibility of your Mac, including fixes that:

• Address an issue that may cause the system to become unresponsive when playing a video in Safari
• Resolve an issue that may cause system audio to stop working when using HDMI or optical audio out
• Improve the reliability of Wi-Fi connections
• Resolve an issue that prevents transfer of your data, settings, and compatible applications to a new Mac running OS X Lion
• Resolve an issue where MacBook Air may boot up when MagSafe Adapter is attached
• Resolve an issue causing intermittent display flickering on MacBook Air
• Resolve an issue that causes the SD card slot in Mac mini to run at reduced speed with SD and SDHC media

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