The Mac saw a new (free!)

operating system this year alongside all kinds of great other apps.

Let’s take a look back at our biggest and best Mac posts of the last year.

Now your options are vast and the installation process is fairly simple.

Should I Upgrade to Mac OS X Yosemite?

Dear Lifehacker,So Yosemite is coming out today.

You guys have been using it; what do you think?

Here are 10 hidden features you might not have noticed yet.

Here’s how to test if your machine is vulnerable.

Don’t worry though, most of the common annoyances can get fixed up with a few clicks.

Here’s how to set it up and use it.

It also costs $3,000.

Here are some of our favorites.

Here’s how to burn Yosemite to a USB drive instead.

Not all Macs will support it, though.

Here’s how to find out if yours will.

If you’re migrating from Linux, you’ll find many familiar commands work the way you expect.

If you’re not a fan of this behavior, Macgasm shows you how to clear out that log.

Browse the app’s huge collection of movies and documentaries, pick one, and click play.

Subsequently, I’ve avoided it for years.

Here’s what I’ve learned in my time.

Alfred’s an app launcher and utility that makes that possible.