System 3.1

1986 System Software 1.0 (3.1/5.2)

System 3.1 was released in February 1986, a month after System 3.0. It included Finder 5.2 as part of Macintosh Printer Installation version 1.0. 

Issues

It had serious flaws impacting file storage and system stability. Use of System 3.1 was seriously discouraged, and use of 3.0 was encouraged until 3.1 was replaced by System 3.2 four months later.

References

• The develop CD and its spawn by Eric Rasmussen, Apple Macintosh before System 7. Archived 2011-11-22.
• Dates in Mac history by Lawrence I. Charters and Dr. Kathleen G. Charters, KLJCharters Blog. 2013-10-30.
• System 3.1 / Finder 5.2 (System Software 1.0), The Mac 512. Archived 2016-12-02.
• Macworld Mac SECRETS by David Pogue, 5th Edition p.298. 1999.

External links

• Macintosh: System Software Version History at Apple Support (2012-02-19)
• Classic Mac OS: System 1, 2, 3, and 4 at Wikipedia