The update weighs in at a mere 17.4 MB, a nice departure from the hefty updates of old. It offers reprieve from a number of bugs and issues. This is what Apple says has been resolved:
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
For detailed information on this update, please visit this website: http://support.apple.com/kb/HT4764.