Apple on Thursday pushed out a batch of new Safari builds for developers covering OS X 10.10 Yosemite, OS X 10.9 Mavericks and OS X 10.8 Mountain Lion. Safari betas 8.0.1, 7.1.1 and 6.2.1 bring a few new areas of focus for their corresponding Mac operating systems, being Yosemite, Mavericks and Mountain Lion, respectively. For OS X Yosemite, Apple asks developers to test Safari’s cross-device history syncing capabilities and importing usernames and passwords from Firefox. Other areas of interest for all Safari builds include WebGL graphics on Retina displays, extension compatibility, password AutoFill across multiple devices and general website compatibility. Apple notes the most recent beta builds are not fully localized and require current maintenance updates for run correctly.