updated 03:20 pm EDT, Wed August 27, 2014
Testing continues slow advance
A little over a week after the last one, Apple has issued a new beta of OS X 10.9.5 to developers. The code is identified as build 13F24. Areas of testing focus remain unchanged, and include Safari, graphics, Thunderbolt support, and USB/USB smart cards.
Registered developers can download the beta via the Mac App Store. At this stage, it's unclear how close Apple is to pushing out the final version of 10.9.5 to the public.