Note: The headings on this list indicate the Macintosh System bundle names; the bullet points indicate the version of the System File included in that bundle.  This is to make it clearer for people searching for specific bundle versions as opposed to System File versions.  Finder File versions are not indicated.

Classic Mac OS

Macintosh System Software (0 - 0.3)

System File 1

System File 2

System Software with HD20 Support (0.5)

System File 2

Macintosh System Software (0.7)

System File 3

System Software 1

System File 3

System Software 2

System File 4

System Software 5

System File 4

System Software 6

System Software 7 "Blue"

AKA "Big Bang," "M80," "Pleiades"

"System" designation

Regular Systems
Performa Systems

"Mac OS" designation

Mac OS 8 "Tempo"

Mac OS 9 "Sonata"

External Links


Mac OS X Server

OS X Server 10.7 and later are software add-ons to the base OS, and do not get their own releases

Mac OS X Developer Preview

Mac OS X Public Beta "Kodiak" (2000)

OS X Public Beta runs on stock PowerMac G3 and G4 computers with 128MB RAM and their internal clock set to between September 13, 2000 and May 15, 2001.

Mac OS X 10.0 "Puma"

Mac OS X 10.1 "Cheetah"

Mac OS X 10.2 "Jaguar"

Mac OS X 10.3 "Panther"

Mac OS X 10.4 "Tiger"

Mac OS X 10.5 "Leopard"

Mac OS X 10.6 "Snow Leopard"

After Mac OS X 10.6, all OS installs are provided via download.

Mac OS X 10.7 "Lion"

Mac OS X 10.8 "Mountain Lion"

OS X 10.9 "Mavericks"

OS X 10.10 "Yosemite"

OS X 10.11 "El Capitan"

macOS 10.12 "Sierra"

macOS 10.13 "High Sierra"

Current Version:

macOS 10.14 "Mojave"

Failed Systems

These systems were developed and in some cases were even functional before Apple officials applied the brakes; they were never officially released beyond Developer Previews.

Macintosh system software
Macintosh System: System 1 | System 2 | System 3 | System 4 | System 5 | System 6 | System 7
Mac OS: Mac OS 8 | Mac OS 9 | Mac OS X