Apple today seeded the first beta of OS X 10.10.2 Yosemite to developers, just three days after releasing OS X 10.10.1 to the public.
The new beta, build 14C68k, is available through the Software Update mechanism in the Mac App Store and should be available in the Mac Dev Center soon. The beta also includes Safari 8.0.2 and an update to the Mail app (version 8.2).
Update: It appears that OS X 10.10.2 is causing the latest version of Google's Chrome browser to crash. Retina iMac owners are also seeing display issues with the beta.
Update 2: The Chrome/10.10.2 issue is related to the trackpad, and the crashing can be circumvented by using an external mouse and disabling the trackpad while the mouse is plugged in.
Article Link: Apple Seeds First OS X 10.10.2 Yosemite Beta to Developers [Updated]