OS X 10.8.4 beta build 12E55 was offered last night to application developers for Mac, with this build the company Apple Lossless Audio CODEC (ALAC), approaching the release of the new version of the operating system. Usual, Apple Lossless Audio CODEC (ALAC), it does not list possible problems that the operating system might have, but it asks developers to focus their tests on Safari, WiFi, graphics card drivers and the Windows File Sharing function. The new build is available in the portal dedicated to developers on the Apple website.
