Though Thursday's release of the iPhone 4 is getting the most fervent attention, Apple's iOS 4 is just as significant. CNET takes a look at the biggest offerings in this initial review.

iOS 4.2 is a major new update for iPhone, iPod Touch and iPad built on the strong foundation of iOS 4, released in June just two days before the iPhone 4 went on sale. iPhones and iPod Touches have ...

With the fourth beta of iOS 26, Apple has again made changes to the Liquid Glass design that's available across the operating ...

iOS 4 is available for download by iPhone 3GS and 3G users, as well as by second- and third-generation iPod touch users.

Apple's newest version of iOS (formerly iPhone OS) rolled out today to compatible devices. Here's a quick explanation of the basics: what's new, what's compatible, what's good, and what's bad.

Apple's software engineers are testing an internal version of iOS 26.4, according to the MacRumors visitor logs this week.