It's been almost seven years since the release of the first version of iOS on the original iPhone, and a lot has changed with each subsequent update. Join us as we take a tour of the highlights of how Apple's mobile OS has changed since 2007.
Jason Parker
Jason Parker has been at CNET for nearly 15 years. He is the senior editor in charge of iOS software and has become an expert reviewer of the software that runs on each new Apple device. He now spends most of his time covering Apple iOS releases and third-party apps.
Kent GermanFormer senior managing editor / features
Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he reviewed the first iPhone and worked in both the London and San Francisco offices. When not working, he's planning his next vacation, walking his dog or watching planes land at the airport (yes, really).
1 of 37Apple's iOS mobile operating system is now almost 7 years old, and it continues to evolve every few months. With WWDC just a month away, here's a look back at the major releases since iOS 3 and the biggest features that each update introduced. Editors' note: This gallery was updated May 7, 2014.
