Users with multiple monitors seem to have become second-class citizens on the Mac, but it's not too late for Apple to turn that around in the next OS X update.

Can you transfer a Lion file that has multiple saved versions to another Mac and expect to browse those versions? No, and Chris Breen explains why.

Apple told Mac developers Tuesday that it would be extending the sandboxing deadline for all App Store apps yet again, this time to June 1. Additionally, Apple has confirmed that apps may remain on the App Store without sandboxing after this deadline, but developers may only submit bug fix updates for them. Macworld spoke with several app developers about their thoughts on the extension.

There are a bunch of interesting changes to look forward to when Mountain Lion roars onto the scene this summer. But for those uninterested in flashy features, there are plenty of minor changes, as well. Here's a quick look at ten that caught my eye.

Mountain Lion looks promising. But Lex Friedman hopes Apple will add support for Siri, the voice recognition assistant from the iPhone 4S, to the next iteration of the Mac OS as well.

If you missed the big news this week, boy are you in for some exciting reading: Apple announced a new release of OS X. But while that announcement and its aftershocks dominated the week's news, we wrote about a few other things as well.

When Apple released Lion (OS X 10.7), Mail received its biggest overhaul ever, gaining many new and noteworthy features. The changes to Mail in Mountain Lion are more subtle, though there are some nice improvements, along with one significant omission.

Sometimes maybe we shouldn't.

Though Safari didn't receive as huge an overhaul in Mountain Lion as other OS X apps have, it still got some love from the folks in Cupertino. Here are a few brief impressions of Safari's new features.

No idea is too crazy for Tim Cook, but you might be crazy if you opt for a real mountain lion over an operating system update. And while Apple may be pulling the iPad from unauthorized Chinese retailers, the auditors are pulling out their clipboards and shaking their heads over Foxconn's factories.

iOS 5 offered systemwide Twitter integration; Apple says similar integration is coming to the Mac in Mountain Lion. But what about Facebook?

Got a question about Mountain Lion? We dive into the things you need to know about availability, features, and changes in the next version of OS X.

Though Mountain Lion snuck onto the scene just this morning, I've already discovered a few delightful details about the apps in Apple's upcoming OS update for the Mac, thanks to editorial director Jason Snell's hands on with the software. Here are five app changes I can't wait to see come to my Mac this summer.

The latest version of OS X is looking at lot more like iOS.

Many Mac users will welcome the updated versions of iCal and Address Book--renamed Calendar and Contacts, respectively--offered in Mountain Lion. While they don’t fix all issues present in their Lion counterparts, each offers a number of significant improvements. Here’s a quick look.

Apple released Messages, the successor to iChat, in beta form. Staff writer Lex Friedman took a look at what's right about the updated instant messaging and iMessaging app, and what needs improvement.

One of the new features in Mountain Lion is Gatekeeper, which can restrict users to running Mac apps from the Mac App Store and trusted developers. Developers had both positive and cautious things to say about the idea.

Here are a few name changes to get used to with the upcoming Mountain Lion OS X.

Macworld's Jason Snell joins host Chris Breen to discuss the next version of the Mac OS--Mountain Lion.

Apple on Thursday released a beta of Messages, the iChat replacement due in Mountain Lion.