OS X 10.10.3 Beta 2 Available for Testing
A new beta version of OS X Yosemite 10.10.3 has been released by Apple. The second beta build arrives as 14D87h and continues to emphasize the new Photos app for Mac.
Mac users who are registered to participate in the OS X developer program can find the update available in the Mac App Store Update mechanism, or through the OS X Dev Center website. It’s possible that Mac users in the Public Beta may find the release available to them in the future, but at the moment it appears to be a developer only release.
The Photos app aims to replace iPhoto as an image management tool for Mac users. Sharing much in common with the iOS versions of Photos app, the OS X Photos app looks similar visually and has a heavy emphasis on iCloud Photo Library, perhaps making it the defining feature of OS X 10.10.3.
Presumably, OS X 10.10.3 will also include other bug fixes and improvements to OS X Yosemite, though none are specifically mentioned in the release notes accompanying the download. Some Mac users running Yosemite have been bothered by a continuous stream of bugs or difficulties with the OS X release, ranging from wi-fi and network challenges to broader usability concerns.
There is no known timeline for a public release of OS X 10.10.3, currently the most recent version of Mac OS available to the public is OS X 10.10.2.
Separately, developers for iPhone, iPad, iPod touch, and Apple TV can find iOS 8.3 beta 2 available as well as new version of Xcode.