Apple Seeds OS X Mavericks GM
Apple has seeded OS X Mavericks GM last night. The “GM” stands for Golden Master, which is the final beta release before its launch. Everything that you see in the GM version is what you will see in version one of Mavericks. iOS 7 GM was seeded eight days before the launch, so this might give you an estimate of when OS X Mavericks will be released. Developers can update in the Mac App Store and go to “Updates”. Or developers can download it for the first time in the Mac Developer Center.