System 3

System 3 was the third major version of the Macintosh system file. First released as part of Macintosh System Software 0.7 in January 1986, its most notable change was the switch from MFS to HFS for the file system.

Versions of System 3

 * System 3.0
 * System 3.1
 * System 3.2
 * System 3.3
 * System 3.4