Apple is rumoured to be releasing OS X 10.9 codenamed "Cabaret" at WWDC later this Spring. OS X 10.9 which was reportedly delayed so Apple could focus on iOS 7, is rumoured to carry over many features from iOS.
According to 9to5 Mac, those features will include enhancements to the Finder including tags and tabbed browsing modes. The new operating system will also include a new Safari web browser with a redesigned backend for improved page loading, speed, and efficiency. Amongst other features borrowed from iOS will include "Quick App Switching" and a new Multi-Tasking mode.
Another are of improvement needed for OS X 10.9 is multiple full screen apps or spaces. Up until now, Apple's OS only allows one full screen app running at a time, without the ability to access other apps in full-screen mode. In an email to Craig Federigi, Apple's Senior Vice President of Software Engineering, one user lamented this lack of support to which Craig replied "I can't comment on future product plans, but please do know we are absolutely aware of our customers passion on this topic"
Apple has introduced many carry over features from iOS with the current rendition of OS X 10.8 Mountain Lion including iMessage, Notifications and in OS X 10.7, the App Store and iCloud. If past versions are an indicator, expect OS X 10.9 to be shipping Summer 2013. With most of the big cats already used in prior versions, which cat do feel will grace the final version of OS X? Let us know in the comments along with features you would like to see.
Source: 9to5 Mac