System 7.1.2: Support for 68040 or Earlier Macintosh (4/97)
Can I use System 7.1.2 to update the operating system of my 680x0 Macintosh?
Yes. Several 680x0 Macintosh, Performa, and PowerBook systems shipped with System 7.1.2 installed. If your computer has earlier versions of system software, you may safely update to 7.1.2 (which includes System Update 3.0).