iPhone OS 2
iPhone OS 2 is the second major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 1. It was the first version of iOS to support third party applications via the App Store. iPhone OS 2.2.1 was the final version of iPhone OS 2. It was succeeded by iPhone OS 3 on June 17, 2009.
| Version of the iOS operating system | |
iPhone OS 2 running on an iPhone 3G | |
| Developer | Apple Inc. |
|---|---|
| Source model | Closed, with open source components |
| Initial release | July 11, 2008 |
| Latest release | 2.2.1 (5H11 / 5H11a) / January 27, 2009 |
| Update method | iTunes through a computer |
| Package manager | App Store |
| Platforms | |
| Kernel type | Hybrid (XNU) |
| License | Proprietary except for open-source components |
| Preceded by | iPhone OS 1 |
| Succeeded by | iPhone OS 3 |
| Official website | Apple - iPhone - Software Update - 2.0.0 at the Wayback Machine (archived September 12, 2008) |
| Support status | |
| Obsolete, unsupported | |
iPhone OS 2 became available on July 11, 2008 with the release of the iPhone 3G. iPhones and iPod Touches running iPhone OS 1 are upgradable to this version. This version of iOS introduces the App Store, making third-party applications officially available to the iPhone and iPod Touch. Prior to the public release of iPhone OS 2, Apple held a keynote event to announce the iPhone OS Software Development Kit ("SDK") to developers. Originally it was called 1.2.