The first thing you should notice is that Apple changed the naming scheme. Ever since OS X 10.0 Cheetah, Apple’s operating system for its line of personal computers has been named after big cats. From Puma to Tiger to Snow Leopard, Apple used almost every big cat out there. Starting with OS X 11, Apple will name its premiere operating system after cities from Apple’s home state of California. I personally was hoping for it too be named after space objects and galaxies.
Something Apple users have been asking for ever since OS X Cheetah. So now you can open up multiple finder pages at once. This is a feature thats been speculated ever since OS X 10.5.
Instead of having too search through Finder or an app such as Microsoft Word, you can now tag files and documents and search for them by tag. One of the niftier features in OS X 10.9 for guys like me who write a lot of documents and would love for an easier way to find them.
The all important battery life. Something every electronics company struggles with. Every electronic and gadget user has wished for a longer battery life. So Apple finally did something about it. Apple added an app named AppNap which improves battery life by suspending CPU tasks that you don’t need. For example, if you have a CPU-intensive web site running in Safari and you cover it with another window, OS X will suspend that task so it doesn’t drain your battery when not needed. It’s a great idea that could add all important minutes too your battery life.
Ever since Apple introduced multi display support with OS X 10.7 its been plagued with problems. When you would open an app in too full screen mode it would force the second monitor too show a grey screen. Now you can use multiple full screen apps at once. Another great enhancement I would have loved when I was dual monitoring E3 and WWDC yesterday.
Popular apps and extensions such as LastPass save and sync your passwords. Apple decided too follow suit with their own app called, Keychain. With Keychain you will be able too sync your password between your iPhone, iPad, or Mac’s. It will be synced with iCloud and Apple will encrypt all the data it receives.
Notification Center Enhancements:
Notification center on the iPhone is a great feature. On the Mac, its basically useless. All it does is redirect you to the app that the notification came from. Now with OS X 10.9 you can reply too messages, update apps, and answer video chats from within the notification center. It will also sync your notifications from your iPhone too your Mac.
Calendar, Maps and iBooks:
Calendars, Contacts, and other apps with user interfaces that imitated the real-world equivalent are now gone! Apple also added a new Maps application where you can look up directions and send them straight to your iPhone. When you unlock your iPhone, you get sent straight to navigation. Apple also created an iBooks application so you can read your iBooks on your Mac. The feature set seems on par with what you’ll find on an iPad