Apple released Mac OS X 10.4.10 update for both PPC and Intel on Wednesday. Improvements are in the areas of Bluetooth, RAW camera support, USB mounting of hard drives, and some calendar calculations.
Apple advises that the installation process should not be interrupted, and as usual, has provided stand-alone (delta) installers for PPC and Intel if that might be a problem.
The delta update takes Mac OS X from 10.4.9 to 10.4.10.
A complete list of fixes and a link to the combo updater are available in Appleis release document.