PlayStation Portable system software
| Developer | Sony Computer Entertainment |
|---|---|
| OS family | Proprietary |
| Working state | Discontinued |
| Source model | Closed source |
| Initial release | December 12, 2004 (as 1.00) |
| Latest release | 6.61 / January 15, 2015 |
| Available in | Chinese (Simplified), Chinese (Traditional), Dutch, English, French, Italian, Japanese, Korean, Portuguese, Russian, Spanish |
| Update method | Direct Download Download via PS3 Download via PC Universal Media Disc |
| Platforms | PlayStation Portable |
| Default user interface | XrossMediaBar |
| Preceded by | PocketStation |
| Succeeded by | PlayStation Vita (system software) |
| Official website | |
| Support status | |
| Unsupported | |
The PlayStation Portable system software is the official firmware for the PlayStation Portable (PSP). It uses the XrossMediaBar (XMB) as its user interface, similar to the PlayStation 3 console.