Mac OS X 10.10 Yosemite: All The New Features

Apple has now released its free OS X upgrade for Mac users in the form os 10.10 Yosemite.

So should you upgrade?

This video takes you through the big new features in this slick, but arguably slight update, and confirms what you already knew: you should upgrade if you're willing to accept a very small risk of bugs for some amazing new features.