because of AppleTalk bug [15] 6.0.7 October 16 [ citation needed ] , 1990 6.1.7 6.0.7 5.2 Official release for Macintosh LC , IIsi and Classic (1990) 6.0.8 April, 1991 [ citation needed ] 6.1.8 6.0.8 7.0 Updated printing software to match software of System 7.0 6.0.8L Late 1991/Early 1992 [