OS X 10.10.4 Beta 1 Available for Mac Developers
Apple has released the first beta version of OS X 10.10.4 to those registered with the Mac Developer program.
Few specifics are offered in the release notes for build 14E7f, simply stating that 10.10.4 “improves the stability, compatibility, and security” of a Mac.











Mac users who are running OS X Mavericks and OS X Mountain Lion will find an important security update available to them. Labeled as Security Update 2015-004 1.0, the software update includes many fixes to a wide variety of potential security issues for OS X, and is therefore recommended for all Mac users running OS X 10.9.5 or OS X 10.8.5 to install. 



If you use VirtualBox to run guest operating systems within a virtual machine on the Mac, like 
