OS X 10.9 it has been tested for several months by the company Apple Lossless Audio CODEC (ALAC),, but so far no beta version of the operating system has been released, but at WWDC 2013 we will see all the news that Apple Lossless Audio CODEC (ALAC), he has them ready. Through a bug in the bug reporting system to Apple, a developer succeeded to discover like the build X al OS X 10.9 it is now being tested by Apple employees, and developers may receive it later WWDC 2013.
The first three digits of the build indicate that we are talking about OS X 10.9, and the last 3 indicate the progress made by the team of engineers developing it. Practically 451 builds of the operating system have been made so far, all in the alpha testing stage, and developers could receive this version, or a newer one, to test. This would not be the GM version of the operating system, and this implies that the testing period could extend over several weeks, days, or even months.
Apple has made a habit of releasing major new versions of OS X in July, and this year it could keep the tradition going if it releases a near-final beta version of OS X 10.9 now and doesn't get many bug reports. .
