Apple has pushed another update of Mac OS X 10.6.8 (10K537) to developers last night that arrives as a delta updates, which only includes some changes in Mac OS X 10.6.8. The new update is kicked out to get the focuses of developers on testing the different parts of the OS, including AirPort, Mac AppStore, Networking, Graphics Drivers, Quick Time and VPN.

The latest build of Mac OS X 10.6.8, which released yesterday night weighs in at 454MB, and it is currently available to download from the Mac Developer Center.