Mac OS 7.5.5

Mac OS 7.5.5 is a version of Mac OS 7, which was released on 27 September 1996. This is the last version of Mac OS 7.5 and the last version of Mac OS to include support for the Macintosh Plus, SE, II, IIx, SE/30, IIcx, Portable, Classic, LC and PowerBook 100.