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| iPhone OS 1 | |
|---|---|
| Version of the iOS operating system | |
 | |
 iPhone OS 1 home screen on an original iPhone | |
| Developer | Apple Inc. |
| Source model | Closed, with open source components |
| Initial release | June 29, 2007 |
| Latest release | 1.1.5 (4B1) / July 15, 2008 |
| Update method | iTunes |
| Supported platforms | iPhone (1st generation) and iPod Touch (1st generation) |
| Kernel type | Hybrid (XNU) |
| License | Proprietary software |
| Succeeded by | iPhone OS 2 |
| Official website | Apple - iPhone at the Wayback Machine (archived June 7, 2007) |
| Support status | |
| Obsolete, unsupported | |
iPhone OS 1 is the first major release of iOS Mobile operating system, developed by Apple Inc. It was released on June 29, 2007 along with the first-generation iPhone. It was succeeded by iPhone OS 2 on July 11, 2008.