"This update is recommended for all Macintosh computers running Mac OS X Snow Leopard 10.6.2 and includes fixes for the following:
- Inability to turn AirPort on or off in some cases after upgrading from Mac OS X Leopard
- An occasional loss of network connection when using Wake on Demand
- Inability to create a computer-to-computer network, or share the Internet connection on some MacBook, MacBook Pro, and Mac mini computers" This update requires a restart.