OS X Mavericks is the tenth major update of OS X and it was announced on October 22, 2013. There are many new features which include a better life battery, iCloud improvements and Finder changes. What is your opinion about it? Have you downloaded it? If yes, are you satisfied with it? Personally, I downloaded a couple of weeks ago. These new features are helpful, but I am not completely satisfied with it. I own an iMac 21' ( Late 2009 ) and there are many problems that make me mad. For example, it takes so much time to connect to a wireless network. I have to do something in order to improve my iMac's performance.