So far I know only the following:
Improvements in the Finder, networking, log-ins, Mac OS X bundled programs and various third party apps. Mac OS X 10.4.6 includes all the recent Apple security updates, addresses USB audio issues for Power Macs, makes Mac OS X aware of United States Daylight Savings Time (DST) changes enacted by the Energy Policy Act of 2005.34
You can use the Software Update app of System Preferences or download a standalone installer.
[
www.apple.com]
No free Pony
Damnit!