List of Apple operating systems

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The following is a list of operating systems released by Apple Inc.

Apple computers[edit]

Apple II[edit]

Apple III[edit]

Apple Lisa[edit]

Macintosh computers[edit]

Classic Mac OS[edit]

macOS[edit]

macOS was previously known as Mac OS X and later OS X.

macOS Server[edit]

macOS Server was previously known as Mac OS X Server and later OS X Server.

Starting with Lion, there is no separate Mac OS X Server operating system. Instead the server components are a separate download from the Mac App Store.

Other macOS-related releases[edit]

Others[edit]

Newton[edit]

iPod[edit]

Apple TV[edit]

Apple TV Software[edit]

There was no Apple TV Software 8, version 8 was skipped when moving to tvOS.

tvOS[edit]

iOS[edit]

iOS was previously known as iPhone OS, despite also being available on the iPod Touch (1st, 2nd, and 3rd generations) and the original iPad.

watchOS[edit]

audioOS[edit]

Table of operating systems[edit]

Device(s) Platform(s) OS Announced Released Discontinued Notes
Apple computers Apple II series Apple DOS June 1978 June 1978 1983
Apple ProDOS 1983 1983 1993 19812879237239

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Apple GS/OS 1988 1988
Apple III Apple SOS 1980 1980
Apple Lisa Lisa OS 1983 1983
MacWorks XL 1984 1984
Macintosh computers (68k) Classic Mac OS System 1 1984 1984
System 2 1985 1985
System 3 1986 1986
System 4 1987 1987
System Software 5 1987 1987
  • Also marketed as System 5
System Software 6 1988 1988
  • Also marketed as System 6
Macintosh computers (68k and PowerPC) System 7 1991 1991
Mac OS 8 1997 1997
Macintosh computers (PowerPC) Mac OS 9 1999 1999
Mac OS X Mac OS X Public Beta September 13, 2000 September 13, 2000 May 14, 2001
  • Code name Kodiak
Mac OS X 10.0 September 13, 2000 March 24, 2001
  • Code name Cheetah
Mac OS X 10.1 September 25, 2001 September 25, 2001
  • Code name Puma
Mac OS X 10.2 August 23, 2002
  • Code name Jaguar
Mac OS X Panther October 24, 2003
  • Version 10.3
Macintosh computers (PowerPC and X86) Mac OS X Tiger April 29, 2005
  • Version 10.4
Mac OS X Leopard October 26, 2007
  • Version 10.5
Macintosh computers (X86) Mac OS X Snow Leopard August 28, 2009
  • Version 10.6
Mac OS X Lion July 20, 2011
  • Version 10.7
  • Also marketed as OS X Lion
OS X OS X Mountain Lion July 25, 2012
  • Version 10.8
OS X Mavericks October 22, 2013
  • Version 10.9
OS X Yosemite October 16, 2014
  • Version 10.10
OS X El Capitan June 8, 2015
  • Version 10.11
macOS macOS Sierra June 13, 2016
  • Version 10.12
macOS High Sierra June 5, 2017
  • Version 10.13
Macintosh computers (PowerPC) Mac OS X Server Mac OS X Server 1.0 March 16, 1999 March 16, 1999
  • Code name Hera
  • Also referred to as Rhapsody
Mac OS X Server 10.0 May 21, 2001
  • Code name Cheetah
Mac OS X Server 10.1 September 25, 2001
  • Code name Puma
Mac OS X Server 10.2 August 23, 2002
  • Code name Jaguar
Mac OS X Server 10.3 October 24, 2003
  • Code name Panther
Macintosh computers (PowerPC and X86) Mac OS X Server 10.4 April 29, 2005
  • Code name Tiger
Mac OS X Server 10.5 October 26, 2007
  • Also marketed as Leopard Server
Macintosh computers (X86) Mac OS X Server 10.6 August 28, 2009
  • Also marketed as Snow Leopard Server
Mac OS X Lion Server[note 1] July 20, 2011
  • Version 10.7
  • Also marketed as OS X Lion Server
OS X Server OS X Mountain Lion Server[note 1] July 25, 2012
  • Version 10.8
  • Also marketed as Mountain Lion Server
OS X Mavericks Server[note 1] October 22, 2013
  • Version 10.9
  • Also marketed as Mavericks Server
OS X Yosemite Server[note 1] October 16, 2014
  • Version 10.10
  • Also marketed as Yosemite Server 4.0
OS X 10.11 Server 5.0[note 1] September 16, 2015
  • Also marketed as OS X Server 5.0
OS X 10.11 Server 5.1[note 1] March 21, 2016
  • Also marketed as OS X Server 5.1
macOS Server macOS 10.12 Server 5.2[note 1] September 20, 2016
  • Also marketed as macOS Server 5.2
macOS 10.12 Server 5.3[note 1] March 17, 2017
  • Also marketed as macOS Server 5.3
macOS 10.13 Server 5.4[note 1] September 25, 2017
  • Also marketed as macOS Server 5.4
macOS 10.13 Server 5.5[note 1] January 23, 2018
  • Also marketed as macOS Server 5.5
Other computers NeXTSTEP September 18, 1989
OpenStep 1994
Darwin November 15, 2000
A/ROSE
A/UX
AIX for Apple Network Servers
Macintosh Application Environment
MkLinux
PowerOpen Environment
Star Trek N/A N/A
Taligent N/A N/A
Copland N/A N/A
Newton Newton Newton OS
iPod iPod iPod OS
Apple TV Apple TV Software (X86) Apple TV Software 1 September 12, 2006 March 21, 2007 February 12, 2008
Apple TV Software 2 January 15, 2008[1] February 12, 2008[2] October 2009
Apple TV Software 3 October 2009
  • Derived from Mac OS X 10.4 Tiger
Apple TV Software (ARM) Apple TV Software 4
Apple TV Software 5
Apple TV Software 6
Apple TV Software 7[note 2]
tvOS tvOS 9[note 2]
tvOS 10
tvOS 11
iOS devices (iPhone, iPod Touch, and iPad) iPhone OS[note 3] iPhone OS 1[note 3]
  • Derived from "OS X" (At the time, "macOS" was still known as "Mac OS X" and not "OS X" as it was known from 2012 to 2016.)
iPhone OS 2[note 3]
iPhone OS 3[note 3]
iOS[note 3] iOS 4[note 3]
  • Continued from iPhone OS 3
iOS 5
iOS 6
iOS 7
iOS 8
iOS 9
iOS 10
iOS 11
Apple Watch watchOS watchOS 1
  • Derived from iOS 8
watchOS 2
  • Derived from iOS 9
watchOS 3
  • Derived from iOS 10
watchOS 4
  • Derived from iOS 11
HomePod audioOS audioOS 11
  • Derived from iOS 11

Notes[edit]

  1. ^ a b c d e f g h i j Starting with Lion, there is no separate Mac OS X Server operating system. Instead the server components are a separate download from the Mac App Store.
  2. ^ a b There was no Apple TV Software 8 or tvOS 8, version 8 was skipped when moving to tvOS.
  3. ^ a b c d e f iOS was previously known as iPhone OS, despite also being available on the iPod Touch (1st, 2nd, and 3rd generations) and the original iPad.