https://www.macrumors.com/2010/09/14/mac-os-x-10-6-5-build-10h542-seeded-to-select-developers/
Mac OS X 10.6.5 Build 10H542 Seeded to Select Developers - MacRumors
MacRumors has received word today that Apple has seeded yet another version of Mac OS X 10.6.5, termed Build 10H542, to select developers.
mac os x