List of Mac OS versions

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.

System File 1

 * System 0.85 (128k) (1983)
 * System 1.0 (128k / 512k) (1984)(also numbered System 0.97)
 * System 1.1 (128k / 512k) (1984)

System File 2

 * System 2.0 (128k / 512k) (1985)

System File 2

 * System 2.1 (128k / 512k with HD20) (1985)

System File 3

 * System 3.0 (128k / 512k / 512ke / Plus) (1986)

System File 3

 * System 3.1 (128k / 512k / 512ke / Plus) (1986)
 * System 3.2 (128k / 512k / 512ke / Plus) (1986)
 * System 3.3 (128k / 512k / 512ke / Plus) (1987)
 * System 3.4 (128k / 512k / 512ke / Plus) (1988)

System File 4

 * System 4.0 (512k+) (1987)
 * System 4.1 (Plus+) (1987)

System File 4

 * System 4.2 (Plus+) (1987)
 * System 4.3 (Plus+) (1987)

System Software 6

 * System 6.0.0 (68k) (1988)
 * System 6.0.1 (68k) (1988)
 * System 6.0.2 (68k) (1988)
 * System 6.0.3 (68k) (1989)
 * System 6.0.4 (68k) "Antares" (1989)
 * System 6.0.5 (68k) "Big Deal" (1990)
 * System 6.0.6 "SixPack" -- never released due to AppleTalk bug
 * System 6.0.7 (68k) (1990)
 * System 6.0.8 (68k) "Terminator" (1991)
 * System 6.0.8L (Classic,LC,PB100) (1992) -- limited machine-only release for Pacific market

System Software 7

 * A.K.A. "Big Bang", "Blue", "M80", "Pleiades".

Regular Systems

 * System 7.0 (68k) "Furnishings 2000" (1991)
 * System 7.0.1 (68k) "Road Warrior" & "Beta Cheese" (1991)
 * System 7.1 (68k) "Cube-E" & "I Tripoli" (1992)
 * System 7.1.1 (68k) (aka System 7 Pro) "Jirocho" (1993)
 * System 7.1.2 (PPC) (1994)
 * System 7.1.2P (68040) (1994)
 * System 7.5 (68k / PPC) "Mozart" & "Capone" (1994)

Performa Systems

 * System 7.0.1P (68k) (1992)
 * System 7.1P (68k) (1992)
 * System 7.1P1 (68k) (1992)
 * System 7.1P2 (68k) (1993)
 * System 7.1P3 (68k) (1993)
 * System 7.1P4 (68k) -- Available only on Utility disk; never bundled
 * System 7.1P5 (68k) (1994)
 * System 7.1P6 (68k) (1994)
 * System 7.1.2P (68040) (1994)
 * System 7.5 (68k / PPC) "Mozart" & "Capone" (1994)

"Mac OS" designation

 * Mac OS 7.5 Update 1.0 (24/32-bit 68k / PPC) "Danook" & "Thag" (1995)
 * Mac OS 7.5 Update 2 (24/32-bit 68k / PPC) "Marconi" (1995)
 * Mac OS 7.5.3 (24/32-bit 68k / PPC) "Unity" (1996)
 * Mac OS 7.5.3L (Macintosh Clones) (1996)
 * Mac OS 7.5.3 Revision 2 (24/32-bit 68k / PPC) (1996)
 * Mac OS 7.5.3 Revision 2.1 (24/32-bit 68k / PPC) "Buster" (1996)
 * Mac OS 7.5.3 Revision 2.2 (24/32-bit 68k / PPC) "Son of Buster" (1996)
 * Mac OS 7.5.4 -- pulled within hours of seeding to distribution sites
 * Mac OS 7.5.5 (24/32-bit 68k / PPC) (1996)
 * Mac OS 7.6 (32-bit 68k / PPC) "Harmony" (1997)
 * Mac OS 7.6.1 (32-bit 68k / PPC) "Ides of Buster" (1997)

Mac OS 8 "Tempo"

 * Mac OS 8.0 (32-bit 68k / PPC) "Tempo" (1997)
 * Mac OS 8.1 (32-bit 68k / PPC) "Bride of Buster" (1998)
 * Mac OS 8.5 (PPC) "Allegro" (1998)
 * Mac OS 8.5.1 (PPC) "Ric Ford" (1998)
 * Mac OS 8.6 (PPC) "Veronica" (1999)

Mac OS 9 "Sonata"

 * Mac OS 9.0.0 (PPC All) "Sonata" (1999)
 * Mac OS 9.0.2 (PPC All) (2000)
 * Mac OS 9.0.3 (PPC All) (2000)
 * Mac OS 9.0.4 (PPC All) "Minuet" (2000)
 * Mac OS 9.1 (PPC with MMU) "Fortissimo" (2001)
 * Mac OS 9.2.0 (PPC G3+) "Moonlight" (2001)
 * Mac OS 9.2.1 (PPC G3+) "Limelight" (2001)
 * Mac OS 9.2.2 (PPC G3+) "LUI" (2001)

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 DP 1 (1999)
 * Mac OS X DP 2 "Titan" (1999)
 * Mac OS X DP 3 (2000)
 * Mac OS X DP 4 (2000)

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 "Cheetah"

 * Mac OS X 10.0.0 (PPC G3+) (2001)
 * Mac OS X 10.0.1 (PPC G3+) (2001)
 * Mac OS X 10.0.2 (PPC G3+) (2001)
 * Mac OS X 10.0.3 (PPC G3+) (2001)
 * Mac OS X 10.0.4 (PPC G3+) (2001)

Mac OS X 10.1 "Puma"

 * Mac OS X 10.1.0 (PPC G3+) (2001)
 * Mac OS X 10.1.1 (PPC G3+) (2001)
 * Mac OS X 10.1.2 (PPC G3+) (2001)
 * Mac OS X 10.1.3 (PPC G3+) (2002)
 * Mac OS X 10.1.4 (PPC G3+) (2002)
 * Mac OS X 10.1.5 (PPC G3+) (2002)

Mac OS X 10.2 "Jaguar"

 * Mac OS X 10.2.0 (PPC G3+) (2002)
 * Mac OS X 10.2.1 (PPC G3+) (2002)
 * Mac OS X 10.2.2 (PPC G3+) (2002)
 * Mac OS X 10.2.3 (PPC G3+) (2002)
 * Mac OS X 10.2.4 (PPC G3+) (2003)
 * Mac OS X 10.2.5 (PPC G3+) (2003)
 * Mac OS X 10.2.6 (PPC G3+) (2003)
 * Mac OS X 10.2.7 (PPC G3+) (2003)
 * Mac OS X 10.2.8 (PPC G3+) (2003)

Mac OS X 10.3 "Panther"

 * Mac OS X 10.3.0 (PPC New World) (2003)
 * Mac OS X 10.3.1 (PPC New World) (2003)
 * Mac OS X 10.3.2 (PPC New World) (2003)
 * Mac OS X 10.3.3 (PPC New World) (2004)
 * Mac OS X 10.3.4 (PPC New World) (2004)
 * Mac OS X 10.3.5 (PPC New World) (2004)
 * Mac OS X 10.3.6 (PPC New World) (2004)
 * Mac OS X 10.3.7 (PPC New World) (2004)
 * Mac OS X 10.3.8 (PPC New World) (2005)
 * Mac OS X 10.3.9 (PPC New World) (2005)

Mac OS X 10.4 "Tiger"

 * Mac OS X 10.4.0 (PPC) (2005)
 * Mac OS X 10.4.1 (PPC) (2005)
 * Mac OS X 10.4.2 (PPC) (2005)
 * Mac OS X 10.4.3 (PPC) (2005)
 * Mac OS X 10.4.4 (PPC/Intel) (2006)
 * Mac OS X 10.4.5 (PPC/Intel) (2006)
 * Mac OS X 10.4.6 (PPC/Intel) (2006)
 * Mac OS X 10.4.7 (PPC/Intel) (2006)
 * Mac OS X 10.4.8 (PPC/Intel) (2006)
 * Mac OS X 10.4.9 (PPC/Intel) (2007)
 * Mac OS X 10.4.10 (PPC/Intel) (2007)
 * Mac OS X 10.4.11 (PPC/Intel) (2007)

Mac OS X 10.5 "Leopard"

 * Mac OS X 10.5.0 (PPCG4+/Intel) (2007)
 * Mac OS X 10.5.1 (PPCG4+/Intel) (2007)
 * Mac OS X 10.5.2 (PPCG4+/Intel) (2008)
 * Mac OS X 10.5.3 (PPCG4+/Intel) (2008)
 * Mac OS X 10.5.4 (PPCG4+/Intel) (2008)
 * Mac OS X 10.5.5 (PPCG4+/Intel) (2008)
 * Mac OS X 10.5.6 (PPCG4+/Intel) (2008, 2009)
 * Mac OS X 10.5.7 (PPCG4+/Intel) (2009)
 * Mac OS X 10.5.8 (PPCG4+/Intel) (2009)

Mac OS X 10.6 "Snow Leopard"

 * Mac OS X 10.6.0 (Intel + Rosetta) (2009)
 * Mac OS X 10.6.1 (Intel + Rosetta) (2009)
 * Mac OS X 10.6.2 (Intel + Rosetta) (2009)
 * Mac OS X 10.6.3 (Intel + Rosetta) (2010)
 * Mac OS X 10.6.4 (Intel + Rosetta) (2010)
 * Mac OS X 10.6.5 (Intel + Rosetta) (2010)
 * Mac OS X 10.6.6 (Intel + Rosetta) (2011)
 * Mac OS X 10.6.7 (Intel + Rosetta) (2011)
 * Mac OS X 10.6.8 (Intel + Rosetta) (2011, 2012)


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

Mac OS X 10.7 "Lion"

 * Mac OS X 10.7.0 (Intel) (2011)
 * Mac OS X 10.7.1 (Intel) (2011)
 * Mac OS X 10.7.2 (Intel) (2011)
 * Mac OS X 10.7.3 (Intel) (2012)
 * Mac OS X 10.7.4 (Intel) (2012)
 * Mac OS X 10.7.5 (Intel) (2012, 2013, 2014)

Mac OS X 10.8 "Mountain Lion"

 * Mac OS X 10.8.0 (64-bit Intel) (2012)
 * Mac OS X 10.8.1 (64-bit Intel) (2012)
 * Mac OS X 10.8.2 (64-bit Intel) (2012)
 * Mac OS X 10.8.3 (64-bit Intel) (2013)
 * Mac OS X 10.8.4 (64-bit Intel) (2013)
 * Mac OS X 10.8.5 (64-bit Intel) (2013, 2014, 2015)

OS X 10.9 "Mavericks"

 * OS X 10.9.0 (64-bit Intel) (2013)
 * OS X 10.9.1 (64-bit Intel) (2013)
 * OS X 10.9.2 (64-bit Intel) (2014)
 * OS X 10.9.3 (64-bit Intel) (2014)
 * OS X 10.9.4 (64-bit Intel) (2014)
 * OS X 10.9.5 (64-bit Intel) (2014, 2015, 2016)

OS X 10.10 "Yosemite"

 * OS X 10.10 public beta (64-bit Intel) (2014)
 * OS X 10.10.0 (64-bit Intel) (2014)
 * OS X 10.10.1 (64-bit Intel) (2014)
 * OS X 10.10.2 (64-bit Intel) (2015)
 * OS X 10.10.3 (64-bit Intel) (2015)
 * OS X 10.10.4 (64-bit Intel) (2015)
 * OS X 10.10.5 (64-bit Intel) (2015, 2016, 2017)

OS X 10.11 "El Capitan"

 * OS X 10.11 public beta (64-bit Intel) (2015)
 * OS X 10.11.0 (64-bit Intel) (2015)
 * OS X 10.11.1 (64-bit Intel) (2015)
 * OS X 10.11.2 (64-bit Intel) (2015)
 * OS X 10.11.3 (64-bit Intel) (2016)
 * OS X 10.11.4 (64-bit Intel) (2016)
 * OS X 10.11.5 (64-bit Intel) (2016)
 * OS X 10.11.6 (64-bit Intel) (2016, 2017, 2018)

macOS 10.12 "Sierra"

 * macOS Sierra preview (2009/2010+) (2016)
 * macOS 10.12.0 (2009/2010+) (2016)
 * macOS 10.12.1 (2009/2010+) (2016)
 * macOS 10.12.2 (2009/2010+) (2016)
 * macOS 10.12.3 (2009/2010+) (2017)
 * macOS 10.12.4 (2009/2010+) (2017)
 * macOS 10.12.5 (2009/2010+) (2017)
 * macOS 10.12.6 (2009/2010+) (2017, 2018, 2019)

macOS 10.13 "High Sierra"

 * macOS High Sierra preview (2009/2010+) (2017)
 * macOS 10.13.0 (2009/2010+) (2017)
 * macOS 10.13.1 (2009/2010+) (2017)
 * macOS 10.13.2 (2009/2010+) (2017)
 * macOS 10.13.3 (2009/2010+) (2018)
 * macOS 10.13.4 (2009/2010+) (2018)
 * macOS 10.13.5 (2009/2010+) (2018)
 * macOS 10.13.6 (2009/2010+) (2018,2019)

macOS 10.14 "Mojave"

 * macOS Mojave preview (2009/2010+) (2018)
 * macOS 10.14.0 (Metal GPU - roughly 2012+) (2018)
 * macOS 10.14.1 (Metal GPU - roughly 2012+) (2018)
 * macOS 10.14.2 (Metal GPU - roughly 2012+) (2018)
 * macOS 10.14.3 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.14.4 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.14.5 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.14.6 (Metal GPU - roughly 2012+) (2019,2020)


 * Current version:

macOS 10.15 "Catalina"

 * macOS Catalina preview (2019)
 * macOS 10.15.0 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.15.1 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.15.2 (Metal GPU - roughly 2012+) (2019)
 * macOS 10.15.3 (Metal GPU - roughly 2012+) (2020)
 * macOS 10.15.4 (Metal GPU - roughly 2012+) (2020)
 * macOS 10.15.5 (Metal GPU - roughly 2012+) (2020)


 * Upcoming version:

macOS 11.0 "Big Sur"

 * macOS Big Sur preview (2020)

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.
 * Copland (1994-1996)
 * Gershwin (1994-1995)