OS X Mavericks - Wikipedia, the free encyclopedia OS X Mavericks is compatible with all Macs that are capable of running OS X Mountain Lion; as with Mountain Lion, ...
Apple seeds first beta of OS X Mavericks 10.9.4 to developers ... 28 May 2014 ... Just a couple of weeks after releasing OS X Mavericks 10.9.3 to users, Apple has seeded the first beta ...