New Safari builds were released by Apple recently to developers for OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, and the latest OS X 10.10 Yosemite. The Cupertino-based company also released a new firmware update for its Thunderbolt Display on the same day. Developers were asked to focus on syncing of Safari’s cross-device history and username and password importing for the company’s newest OS X Yosemite. Other focuses for Safari were password AutoFill, WebGL graphics for Retina displays, and general website and extension compatibility.

As for the Thunderbolt Display firmware update, it’s supposed to fix the ‘rare’ issue of blacking out of displays. The update is also supposed to improve reliability of the display connection with external devices in version 1.2. Safari betas 6.2.1, 7.1.1, and 8.0.1 can be downloaded by developers from the developer portal. Developers who want to download Thunderbolt Display firmware version 1.2 from Apple’s Support Pages, will need 10.9.4 and later as well as 1.7MB of space.

Source: Apple