updated 04:20 pm EDT, Thu September 2, 2010
Apple stays on weekly release track
Apple is seeding a fourth developer build of Mac OS X 10.6.5, 10H535. Developers are being asked to concentrate testing on the same areas as before, including Mail, iCal, QuickTime, Time Machine, 3D rendering and USB devices. The known issue from the last build is still present, and has in fact been expanded to include Parallels as a culprit, alongside VMware. Having either of the virtualization platforms installed may prevent USB devices from working when a Mac comes out of sleep.
Seeds of v10.6.5 have so far held to a weekly schedule, and 10H535 is in fact arriving exactly one week after 10H531. Particularly as a new flaw in the code has been discovered, though, it remains unclear when the finished update might be pushed to the public. Apple sometimes links OS updates to the debut of refreshed Macs.