Classic Mac OS changelogs

This is an index of Classic Mac OS changelogs. This page is currently limited to PowerPC versions because I don't have any 68k-based Macs yet.

System 7 / Mac OS 7

• System Update 2.0.1 (for System 7.1, System 7.1.1)
• System Update 3.0 (for System 7.1, System 7.1.1, System 7.1.2)
  • System Update 3.0 (1.4 MB floppy disk version)
• System 7.5
• System 7.5.1 (System 7.5 Update 1.0)
• System 7.5.3 (System 7.5 Update 2.0)
• System 7.5.3 Revision 2
• System 7.5.5
• Mac OS 7.6
• Mac OS 7.6.1

Mac OS 8

• Mac OS 8
• Mac OS 8.1
• Mac OS 8.5
• Mac OS 8.5.1
• Mac OS 8.6

Mac OS 9

• Mac OS 9
• Mac OS 9.0.4
• Mac OS 9.1
• Mac OS 9.2.1
• Mac OS 9.2.2