
Apple today seeded the third beta of OS X 10.10.2 Yosemite to developers, just over two weeks after seeing the second 10.10.2 beta and over a month after releasing OS X 10.10.1 to the public.
The new beta, build 14C81f, is available through the Software Update mechanism in the Mac App Store and through the Mac Dev Center.

In the release notes for the third 10.10.2 beta, Apple asks developers to focus on Wi-Fi, indicating the update may fix some of the lingering Wi-Fi problems. Apple also asks developers to focus on Mail and VoiceOver.
Article Link: Apple Seeds OS X Yosemite 10.10.2 Build 14C81f to Developers