Apple releases OS X Mavericks 10.9.5 beta build 13F12

  OS X Mavericks 10.9.5 beta build 13F12 for application developers for Mac was launched this evening by the company Apple Lossless Audio CODEC (ALAC),, this being the last major update for this version of the operating system. Apple Lossless Audio CODEC (ALAC), it does not specify the changes made to its operating system for Macs, but asks application developers to focus their checks on USB drivers, USB Smart Cards, graphics card drivers, Safari, and Thunderbolt.

  OS X Mavericks 10.9.5 beta build 13F12 is available for download through the Software Update system of OS X, if you already have a previous version installed.