As rumoured just a few days ago Apple has now released the first seed of Mac OS X 10.4.10 to members of ADC.
The builds are 8R205 (PPC) and 8R2205 (Intel), the update currently fixes issues with mds and network home directories, and an issue with the BSD Kernel. In addition, the PowerPC build corrects a problem with JavaScriptCore.
Developers are being asked to test in excess of 30 particular areas although no known issues are listed.