This is a list of all firmware for Mac on System 3.x. For more Mac firmware, see Firmware/Mac. For all firmware, see Firmware.
| Version | Build | Release Date |
|---|---|---|
| 3.0 | ? | January 1986 (1986-01) |
| 3.1 | ? | February 1986 (1986-02) |
| 3.2 | ? | June 1986 (1986-06) |
| 3.3 | ? | January 1987 (1987-01) |
| 3.4 | ? | 1988 (1988) |
