

Timer coalescing is a feature that enhances energy efficiency by reducing CPU usage by up to 72 percent. Ĭompressed Memory is a virtual memory compression system which automatically compresses data from inactive apps when approaching maximum memory capacity. Any app running on Mavericks can be eligible for this feature by default. OS X Mavericks introduced App Nap, which sleeps apps that are not currently visible. Mission Control has been updated to organize and switch between Desktop workspaces independently between multiple displays. Additionally, AirPlay compatible displays such as the Apple TV can be used as an external display. The menu bar and the Dock are available on each display. Mavericks and later versions are all available for free. OS X Mavericks can run on any Mac that can run OS X Mountain Lion as with Mountain Lion, 2 GB of RAM, 8 GB of available storage, and Mac OS X 10.6.8 (Snow Leopard) or later are required.

On October 22, 2013, Apple offered free upgrades for life on OS X and iWork.

During a keynote on October 22, 2013, Apple announced that the official release of 10.9 on the Mac App Store would be available immediately, and that unlike previous versions of OS X, 10.9 would be available at no charge to all users running Snow Leopard (10.6.8) or later.
