Pre-orders and previews underway ahead of launch.
Apple Announces OS X 'Mavericks' with Tabbed Finder, Safari Redesign, Maps and iBooks
Tagging items allows users to categorize and search for files more easily. With multiple displays, Finder will display a menu bar in each to allow easier control of all apps. Mission Control has also been modified to allow easy transfer of apps between displays, and Mavericks can display apps through a connected Apple TV.
A new feature called Timer Coalescing will reduce CPU activity by smoothing out active processes and idle time while another new feature, Compressed Memory, will compress inactive memory to make free space available to running apps.
Safari gets a revised Top Sites page and a sidebar with direct bookmark and Reading List access. Also visible in the sidebar are links shared by friends through social networks. The browser's memory and energy usage has also been improved in Mavericks.
Keychain moves to iCloud in Mavericks to enable cross-device synchronization of passwords for use within Safari and other apps. Keychain will be able to suggest strong passwords and will remember credit card information to make online shopping easier.
Notifications also get an overhaul with the ability to respond to iMessages or even decline Facetime calls right from the notification banner. After waking from sleep, notification banners for alerts received during sleep will appear on the lock screen.
A Maps app will come to the Mac in Mavericks, offering search capabilities, Flyover views, turn-by-turn directions and the ability to send directions directly to an iOS device.
iBooks is coming to the Mac as well, with direct access to content available in the iTunes Store. Reading features include bookmarks, a night mode, and access to embedded multimedia elements.
Registered developers can preview Mavericks starting today and the final public release of the OS is planned for the fall.