Serenity CaldwellAssociate Editor, Macworld

Serenity has been writing and talking and tinkering with Apple products since she was old enough to double-click. In her spare time, she sketches, writes, acts, sings, and wears an assortment of hats.

How to post iPhone 5s slo-mo videos to Instagram and elsewhere

Can't get the iPhone 5s to post slow-motion clips to Instagram? Here's how you can make it work the way you want to.

Get to know iOS 7: iOS's other apps

Associate editor Serenity Caldwell and senior editor Dan Moren look at what's new in iOS 7's Calculator, Clock, Game Center, Passbook, Stocks, and Weather apps.

Get to know iOS 7: iTunes Store, App Store, and Newsstand

Though both the iTunes and App Store have significantly updated design schemes, both apps are functionally almost identical to their iOS 6 counterparts. Newsstand, meanwhile, gets a new look and the ability to hide inside a folder.

Get to know iOS 7: Compass

Even if you never go out of GPS range, a good compass can be incredibly useful to have. Associate editor Serenity Caldwell takes a look at iOS 7's revamped Compass app (and its hidden level app component).

Get to know iOS 7: Calendar and Contacts

Dan Moren and Serenity Caldwell look at what's new in Calendar and Contacts for iOS 7.

Get to know iOS 7: Camera and Photos

What's new with the Camera and Photos apps in iOS 7? Associate editor Serenity Caldwell has everything you need to know.

Get to know iOS 7: Voice Memos

If you guessed that the Voice Memos app, virtually unchanged since its iOS 3 release, would ditch the big shiny microphone and VU monitor for something a little sleeker in iOS 7, you would be absolutely right. Here's what's changed in iOS 7.

Get to know iOS 7: Phone, FaceTime, and Messages

What's changed with your device's communication apps in iOS 7? Associate editor Serenity Caldwell has you covered.

Get to know iOS 7: Siri

Associate editor Serenity Caldwell details all you can expect from Siri in iOS 7.

How to upgrade to iOS 7

iOS 7 arrives today, and soon it will be time to update your device. Confused about where to start? Need a backup? Macworld associate editor Serenity Caldwell has put together the ultimate choose-your-own upgrade guide.

iCloud.com gets the iOS 7 design treatment

One day before iOS 7's official launch, Apple's iCloud.com service has been revamped to resemble the mobile operating system's new, layered look.

Apple releases OS X Mountain Lion 10.8.5

OS X 10.8.5 update squashes bugs ahead of Mavericks launch in the fall.

Apple to offer iPhone 5 at $100 discount in stores

As first reported by iLounge, Apple is reportedly offering the iPhone 5 at a $100 discount at its Apple Stores. This deal is likely only to last until stock runs out or next week's iPhone 5c/5s launch, whichever comes first.

iPhone 5S

iOS developers dish about new iPhone 5s hardware features

Hardware improvements like the new A7 64-bit processor and M7 co-processor may not mean much to the average user, but iOS developers are very excited about them. Here's why you should be, too.

iOS 7 to launch September 18

Apple senior vice president of software engineering Craig Federighi announced at Tuesday's special event that iOS 7 will be released on September 18.