In addition Apple made another significant and rather stunning announcement. Going forward Apple intends to no longer charge for OS X point releases of the operating system going forward. Previously, Apple charged for point releases of its OS X operating system. The decision could have a far reaching impact in the Microsoft camp after the dust settles.
Mavericks is hailed as a very significant release of OS X for the Mac. Version 10.9 comes with new apps and features as well as significant performance and battery life improvements over previous versions of OS X according to Apple.
Mac users running OS X and are at least on Snow Leopard from 2007 onward will be able to download the upgrade starting today.