| name | image | follows | core | development status | license | source model | date released | Language | Latest version | Website | family |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mac OS X Jaguar |  | Mac OS X 10.1 | Hybrid | Active | Apple Source License | Mixed | 10/0002 | 10.2.8 | Website | Other | |
| Mac OS X Leopard |  | Mac OS X Tiger | Hybrid | Discontinued | Apple Source License | Mixed | 10/0005 | 10.5.8 | Website | Other | |
| Apple ProDOS |  | Apple SOS | Monolithic | Abandoned | Apple Source License | Closed | 10/1983 | 2.0.3 | Website | Apple's OS | |
| Mac OS X Snow Leopard |  | Mac OS X Leopard | Hybrid | Discontinued | Apple Source License | Mixed | 10/0006 | 10.6.8 v1.1 | Website | Other | |
| Apple SOS | Apple DOS | Monolithic | Abandoned | Apple Source License | Closed | 10/1980 | 1.3 | Website | Apple's OS |