The iOS 2, originally called iPhone OS 2, was released on July 11, 2008. It was introduced alongside the iPhone 3G and was the first iOS version to support third-party apps via the App Store.
If the question was about a different version of iOS (such as iOS 18.2 or iOS 26), for example:
- iOS 18.2 was released on December 11, 2024.
- iOS 26 was announced on June 9, 2025, and expected to be released in September 2025.
Please clarify if a specific iOS version is being asked about beyond iOS 2.
