Have you ever ruined an essay by over-editing it? Did you ever mistakenly delete a huge chunk of a report, and not realize it until days later? Maybe you thought you’d saved another copy of that important document, but your Mac seems to have swallowed it. No problem, because your Mac saves versions of your documents as you go, and lets you browse and restore them. And it’s all built in to — yes — Time Machine.

What happens if you’re working on a document and you realize you screwed it up? Maybe you deleted a few paragraphs without realizing. Or you’ve just been writing a bunch of nonsense for the past half-hour and wish you could go back to where you were before? On the Mac, you can easily do just that. It’s called versions, and it’s automatic.

Using versions, you can easily browse and restore previous versions of any document. Some apps have this built in, so you can do it right there inside the app itself. But the Finder also supports versions, so you can revert to a previous state of almost anything.

Did you know that your Mac keeps older versions of the documents you work on, auto-saving them in the background so you can go back to a previous revision, any time you like? It’s just like Time Machine, Apple’s Mac backup feature, only it’s for individual files. It even lets you compare old and current versions of your file, side-by-side. It’s called file versioning, and it’s pretty rad.

Microsoft Office 2011 looks awful on the new MacBook Pro’s Retina display. But unfortunately for its customers, it seems Microsoft has no plans to add high-resolution graphics. While Outlook 2011 does have Retina graphics, the company has confirmed that the rest of the suite will have “the same viewing quality as on any non-Retina device.”

Just as expected, Apple has issued an update to its iWork productivity suite to introduce a number of new features included in OS X Lion, including full-screen capability, resume, auto save, and more.

Soon after OS X Lion hits the Mac App Store today, Apple will update its iWork ’09 productivity suit to introduce some of Lion’s awesome new features, including auto save, resume, full screen mode and versions.