We've recently published a -it's fascinating to see when privacy features that we take for granted were added to the operating system.īelow, we will take a look back at the many key features that have been added to OS X over the years. Features such as tabs in the Finder and in Safari, security features such as File Vault, apps like Face Time all these were launched with a big fanfare and have settled into their place as stalwarts of OS X. + + Timeline of Key Features Added to Every Mac OS X Release to Date Posted on February 18th, 2016 by If you use a Mac, you take for granted a number of features that, when they were first added to the OS X, were pretty big deals.