by 
As OS X Yosemite is nearing release, Apple is now calling on developers to submit apps that are optimized for and compatible with the new OS for review in the Mac App Store. The call for app submissions come on the heels of Apple making a gold master build of OS X Yosemite for developers to download earlier today.
Add powerful new functionality throughout OS X Yosemite with app extensions, explore the innovative new Swift programming language, and take advantage of advances in game technologies, Safari, iCloud, and more. To prepare your apps for the Mac App Store, download and build with the OS X Yosemite GM candidate and Xcode 6.1 GM seed from the Mac Dev Center. With these latest releases, Swift is now final and you can submit your Mac apps written with Swift to the Mac App Store.
Apple has so far not given an exact launch date for the consumer availability of OS X Yosemite. The operating system will bring enhanced integration with iOS 8 and will debut this fall.
