The release updates Mac OS X 10.2.6 and 10.2.7 running on G3 and G4 Macs, and will not work on G5 machines.
As well as several enhancements for Safari, there are security improvements, a full list of which are available online.
The update also offers a number of Bluetooth enhancements, including: the Bluetooth menu bar item works properly when a Bluetooth USB adaptor is disconnected and reconnected; Bluetooth keyboards no longer show a delayed response following sleep, and all Bluetooth devices are available after sleep; and Bluetooth preferences correctly displays the Bluetooth menu bar item's status if the item was enabled elsewhere.
Enhancements Other improvements include: support for USB 2.0 devices, including PCI and PC cards for computers that do not include USB 2.0 hardware; all FireWire storage devices now mount; audio applications no longer unexpectedly quit when a USB or FireWire-based audio device is disconnected; Windows on external displays connected to some PowerBook computers are better drawn; and iBooks no longer make clicking sound reported under OS X 10.2.5 and 2.6.
For Mac-based servers, Apple's notes read: "The update improves client login and authentication experience by addressing these situations: Directory Services authentication stalls, preventing client login; when using the LDAPv3 plug-in, the first log-in by a user works normally but subsequent log-in attempts do not; and when using the LDAPv3 plug-in, clients do not reestablish connection after entering CLOSE_WAIT state."
The update is available through OS X's Software Update, and an installer is also available for download from Apple's Support Web site. A Combo update is also available. This updates OS X versions 10.2-10.2.7 to 10.2.8.