Apple preps final non-security OS X Mavericks update

Apple is working its way toward releasing OS X Mountain Lion 10.9.5, very likely the last non-security update for the 10-month old operating system.

Apple issued a new build of the beta of 10.9.5 yesterday, according to 9to5Mac.com. The build, the fourth in a series for 10.9.5, was identified as “13F18.”