| name | image | follows | core | development status | license | source model | date released | Language | Latest version | Website | family |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AROS Research Operating System |  | AmigaOS | Development | Open | 1996 | 1.5.6 | Website | Commodore's OS | |||
| Minix 3 |  | Minix | Micronucleus | BSD License | 24/10/2005 | 3.3.0 | Website | Unix based | |||
| Mac OS X 10.0 |  | Mac OS 9 | Hybrid | Unmaintained | Mixed | 10/ | 10.0.4 | Website | Other | ||
| Mac OS X Public Beta |  | Mac OS 9 | Hybrid | Abandoned | Apple Source License | 10.11 | Website | Unix based |