The original iOS 2 (iPhone OS 2) was released on July 11, 2008, with the launch of the iPhone 3G. It was available as a free update for iPhone users but cost $9.95 for iPod Touch users at the time.
However, if the question is about the upcoming iOS 26 (the latest version as of 2025), its global release date is September 15, 2025. It started rolling out today, with Apple typically releasing updates around 10 a.m. Pacific Time. Users can download it through the Settings app under General > Software Update on supported iPhone models.
To clarify, iOS 2 refers to the very early version released in 2008, while iOS 26 is the current latest version released in 2025. If the question was about when iOS 2 can be downloaded, it is a historic release from 2008, no longer in use or officially available to download. For the latest iOS 26, the download started on September 15, 2025.
