Good news for all users those were waiting for OS X Mavericks from months. Apple has finished the development of OS X Mavericks that promises to unleash the computing power and significantly reduces the load on processors and battery.

In addition to performance improvements, the new OS brings a facelift – not like iOS 7 — to apps such as Safari and Calendar, easier networking, iOS notifications, improved multi-monitor support and more.

Apple has reportedly delivered a new build — eliminating the Developer Preview definition — to AppleSeed members and Apple employees. Besides, the very first confirmation on OS X 10.10 internally called OS X Syrah has appeared online.

The version of OS X Mavericks released yesterday on AppleSeed, is numbered 13A598, while Developer Preview 8 had a version number of 13A584. The current build — a slight increase over the current DP version – has fueled the speculation of Golden Master build as it drops the words Developer Preview, suggesting that development is finally over. According to 9to5Mac, the same version will be served to end users soon.

OS X Mavericks Golden Master

According to some sources, OS X Mavericks is likely to come in the second half of October for less than $20. Additionally, Apple has also released a newer version of Xcode 5.0.1 for building applications for Mavericks and an iPhoto 9.4.7 update “addresses an issue that caused iPhoto to quit unexpectedly on launch when running OS X Mavericks GM Seed.”

Moreover, Apple has also started preparing OS X 10.10 for the next year, which has been recognized in Web traffic from September. The OS is internally called OS X Syrah – implies a variety of black grapes for wine. Rumors have that its interface will inherit the simplicity introduced on iDevice, with too gaudy colors. If Apple follows its tradition then OS X Syrah can be expected next summer at the WWDC 2014.