Apple have added some new features that do things like allowing you to easily locate your mouse cursor.
They have also added some updates to Safari that will let you pin tabs and easily find out which tab is playing sound.
There have been some new multi-tasking features added that work in a similar way to the snap feature in Windows 8.
Apple have also made some improvements to mail and spotlight search.
Overall El Capitan isn’t a big change but there are certainly some good features that will give you a better experience while using your computer.
Aside from these new features there have been a lot of performance improvements. This OS will run much faster than Yosemite and Apple have also added Metal to Mac which is a system that the iPhone has used for around a year.
Metal will give you some huge improvements in rendering and overall performance.
It will also make Apple computers much better at gaming and overall Metal will make OS X a much better operating system.