Given your Mac isn’t new and is filled with data, you will probably need enough free space on your Mac. Apple doesn’t seem to offer downloads of older versions of Safari, and I’m not even sure they would install on Mac OS X, as Safari seems to be part of the OS like Internet Explorer is on Windows. So you can explore the web for up to three hours longer and stream video for up to four hours longer than on any other browser. And Safari plays HTML5 video - the format used by your favorite streaming services - whenever it’s available. Safari is optimized specifically for Mac, so it’s more efficient than other browsers on macOS. We’ll be repeatedly referring to these Apple OS versions below, so it’s good to know the basic macOS timeline. Old Version Of Safari For Mac A list of all Mac OS X versions Further down we’ll explain where to get one and what problems you may face down the road. Finally, if you want to run a parallel copy of Mac OS X on a virtual machine, you too will need a working installation file of an older Mac OS X. Also, you may have noticed your Mac’s performance went down right after the last update. To begin with, some of your apps may not be working properly (or simply crash) on newer operating systems. There are many reasons that could point you to this radical decision. So, you’ve decided to download an older version of Mac OS X.
