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 the Pacific market
 * System 6.0.8.1 (1992) — limited machine-only release for the international market
 * System 6.1 (1992) — limited machine-only release for the Middle Eastern 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 a Utility disk; never pre-installed
 * 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 9.0.1 (PPC All) "Minuet" — never released
 * 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 Mac system installations 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)

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)
 * macOS 10.15.6 (Metal GPU - roughly 2012+) (2020)
 * macOS 10.15.7 (Metal GPU - roughly 2012+) (2020)

macOS 11 "Big Sur"

 * macOS Big Sur preview (2020)
 * macOS 11.0 (roughly 2013+) (2020)
 * macOS 11.0.1 (roughly 2013+) (2020)
 * macOS 11.1 (roughly 2013+) (2020)
 * macOS 11.2 (roughly 2013+) (2021)
 * macOS 11.2.1 (roughly 2013+) (2021)
 * macOS 11.2.2 (roughly 2013+) (2021)
 * macOS 11.2.3 (roughly 2013+) (2021)
 * macOS 11.3 (roughly 2013+) (2021)
 * macOS 11.3.1 (roughly 2013+) (2021)
 * macOS 11.4 (roughly 2013+) (2021)
 * macOS 11.5 (roughly 2013+) (2021)
 * macOS 11.5.1 (roughly 2013+) (2021)
 * macOS 11.5.2 (roughly 2013+) (2021)
 * macOS 11.6 (roughly 2013+) (2021)
 * macOS 11.6.1 (roughly 2013+) (2021)

macOS 12 "Monterey"

 * macOS Monterey preview (2021)
 * macOS 12.0 (roughly 2015+) (2021)
 * macOS 12.0.1 (roughly 2015+) (2021) — current version

Cancelled projects
The following planned operating systems were cancelled before completion:
 * Copland (1994-1996) — developer beta was not yet in a publicly usable state
 * Gershwin (1994-1996) — still in planning stages with little or no actual engineering work