Days after iOS 8.2 beta (released with WatchKit), Apple today released the first test version of OS X Yosemite 10.10.2 (build 14C68k) for developers. Details about the update are still scarce, but it is expected that it will continue to improve and fix more bugs than those already solved by OS X 10.10.1. (RazorianFly)
Updated by Eduardo Marques · 11/21/2014 s 00:14
Apple also released the OS X Server 4.0.2 Developer Preview (build 14S347) for developers to test.