This article presents a timeline of events in the history of computer operating systems from 1951 to the current day. For a narrative explaining the overall developments, see the History of operating systems.
Year–month | Windows | Apple | BSD | Linux | Others |
---|---|---|---|---|---|
2000–01 | |||||
2000–02 | Windows 2000[34] | Solaris 8 | |||
2000–03 | FreeBSD 4.0 | Red Hat Linux 6.2E | AtheOS BeOS R5 | ||
2000–04 | Pocket PC 2000 | ||||
2000–05 | MenuetOS | ||||
2000–06 | Windows CE 3.0 | OpenBSD 2.7 | Plan 9 Third Edition[35] | ||
2000–07 | Windows 2000 Service Pack 1 | OS/400 V4R5 | |||
2000–08 | Debian 2.2 | MorphOS 0.1[36] | |||
2000–09 | Windows Millennium Edition[37] | Mac OS X Public Beta | SUSE Linux 7.0 | ||
2000–10 | z/OS z/VM MorphOS 0.2 | ||||
2000–11 | |||||
2000–12 | NetBSD 1.5 OpenBSD 2.8 |
AmigaOS 3.9[38] HP-UX 11i | |||
2001–01 | Mac OS 9.1 | ||||
2001–02 | MorphOS 0.4[39] | ||||
2001–03 | Mac OS X Cheetah (v10.0) | ||||
2001–04 | |||||
2001–05 | Windows 2000 Service Pack 2 | AIX 5L 5.1 OS/400 V5R1 | |||
2001–06 | OpenBSD 2.9 | ||||
2001–07 | Mac OS 9.2 | eComStation 1.0 | |||
2001–08 | Haiku[40] | ||||
2001–09 | Mac OS X Puma (v10.1) | ||||
2001–10 | Pocket PC 2002 Windows XP[41] Windows XP 64-bit Edition 2002[42] |
Novell NetWare 6.0 | |||
2001–11 | |||||
2001–12 | OpenBSD 3.0 | OS/2 4.52 | |||
2002–01 | Windows CE 4.x | JX microkernel for Java Sanos microkernel[43] for net appliances K42 microkernel for NUMA machines | |||
2002–02 | |||||
2002–03 | Red Hat Enterprise Linux 2.1 AS | ||||
2002–04 | SUSE Linux 8.0 | Plan 9 Fourth Edition[44] | |||
2002–05 | OpenBSD 3.1 | Solaris 9 (SPARC) | |||
2002–06 | |||||
2002–07 | Debian 3.0 | Syllable 0.4.0[45] | |||
2002–08 | Windows 2000 Service Pack 3 | Mac OS X Jaguar[46] (v10.2) | OS/400 V5R2 | ||
2002–09 | Windows XP Service Pack 1 | NetBSD 1.6 | OS2000 | ||
2002–10 | AIX 5.2 | ||||
2002–11 | OpenBSD 3.2 | MorphOS 1.0 | |||
2002–12 | MorphOS 1.1 | ||||
2003–01 | FreeBSD 5.0 | Solaris 9 (x86) JNode[47] – JavaOS successor | |||
2003–02 | MorphOS 1.2 ReactOS 0.1.0 | ||||
2003–03 | Windows XP 64-bit Edition 2003[48] | MorphOS 1.3 | |||
2003–04 | Windows Server 2003 | eComStation 1.1 | |||
2003–05 | OpenBSD 3.3 | Red Hat Enterprise Linux 2.1 ES | |||
2003–06 | Windows 2000 Service Pack 4 Windows Mobile 2003 |
OpenVMS 8.0 | |||
2003–07 | |||||
2003–08 | Novell NetWare 6.5 MorphOS 1.4 | ||||
2003–09 | HP-UX 11i v2 | ||||
2003–10 | Mac OS X Panther (v10.3) | Red Hat Enterprise Linux 3 SUSE Linux 9.0 |
|||
2003–11 | OpenBSD 3.4 | Fedora Core 1 | |||
2003–12 | Linux 2.6.0[49] | XTS-400 | |||
2004–01 | Linux 2.6.1 | ReactOS 0.2.0 | |||
2004–02 | Linux 2.6.2, 2.6.3 | ||||
2004–03 | Linux 2.6.4 | ReactOS 0.2.1 | |||
2004–04 | Linux 2.6.5 | ReactOS 0.2.2 | |||
2004–05 | OpenBSD 3.5 | Linux 2.6.6 Fedora Core 2 |
|||
2004–06 | i5/OS V5R3 ReactOS 0.2.3 | ||||
2004–07 | DragonFly BSD 1.0 | ||||
2004–08 | Windows CE 5.x Windows XP Service Pack 2 |
Linux 2.6.8 | AIX 5.3 eComStation 1.2 | ||
2004–09 | ReactOS 0.2.4 | ||||
2004–10 | Linux 2.6.9 Ubuntu 4.10 |
||||
2004–11 | OpenBSD 3.6 | Fedora Core 3 | |||
2004–12 | NetBSD 2.0 | Linux 2.6.10 | |||
2005–01 | Solaris 10 ReactOS 0.2.5 | ||||
2005–02 | Red Hat Enterprise Linux 4 | OpenVMS 8.2 z/VSE | |||
2005–03 | Windows Server 2003 Service Pack 1 Windows XP Professional x64 Edition |
Linux 2.6.11 Novell Open Enterprise Server |
MorphOS 1.4.4 | ||
2005–04 | Mac OS X Tiger (v10.4) | DragonFly BSD 1.2 | Ubuntu 5.04 | ReactOS 0.2.6 MorphOS 1.4.5 | |
2005–05 | Windows Mobile 5.0 | OpenBSD 3.7 | |||
2005–06 | Linux 2.6.12 Fedora Core 4 Debian 3.1 |
||||
2005–07 | |||||
2005–08 | Linux 2.6.13 | ReactOS 0.2.7 MorphOS 1.4.5 Classic | |||
2005–09 | |||||
2005–10 | Linux 2.6.14 Ubuntu 5.10 SUSE Linux 10.0 |
ReactOS 0.2.8 | |||
2005–11 | FreeBSD 6.0 OpenBSD 3.8 |
||||
2005–12 | NetBSD 3.0 | ReactOS 0.2.9 | |||
2006–01 | DragonFly BSD 1.4 | Linux 2.6.15 | i5/OS V5R4 Solaris 10 1/06 | ||
2006–02 | |||||
2006–03 | Windows Server 2003 R2 | Linux 2.6.16 Fedora Core 5 |
|||
2006–04 | |||||
2006–05 | OpenBSD 3.9 | SymbOS MINIX 3.1.2 | |||
2006–06 | Linux 2.6.17 Ubuntu 6.06 (LTS) |
Solaris 10 6/06 | |||
2006–07 | DragonFly BSD 1.6 | ||||
2006–08 | BS2000/OSD v7.0[50] ReactOS 0.3.0 | ||||
2006–09 | Windows CE 6.0 | Linux 2.6.18 | FreeDOS 1.0 OpenVMS 8.3 | ||
2006–10 | Fedora Core 6 Ubuntu 6.10 Slackware 11.0 |
||||
2006–11 | OpenBSD 4.0 | Linux 2.6.19 | AmigaOS 4.0 Solaris 10 11/06 | ||
2006–12 | |||||
2007–01 | Windows Vista | DragonFly BSD 1.8 | Bharat Operating System Solutions | ||
2007–02 | Windows Mobile 6.0 | Linux 2.6.20 | Inferno Fourth Edition | ||
2007–03 | Windows Server 2003 Service Pack 2 | Red Hat Enterprise Linux 5 | ReactOS 0.3.1 | ||
2007–04 | Linux 2.6.21 Ubuntu 7.04 Debian 4.0 |
||||
2007–05 | iPhone OS 1 | OpenBSD 4.1 | Fedora Linux 7 | ||
2007–06 | |||||
2007–07 | Linux 2.6.22 Slackware 12.0 |
||||
2007–08 | DragonFly BSD 1.10 | Solaris 10 8/07 | |||
2007–09 | iPhone OS 1.1 | HP-UX 11i v3 ReactOS 0.3.3 | |||
2007–10 | Mac OS X Leopard (v10.5) | Linux 2.6.23 Ubuntu 7.10 |
OpenVMS 8.3-1H1 | ||
2007–11 | Windows Home Server | OpenBSD 4.2 | Fedora Linux 8 gOS |
AIX 6.1, | |
2007–12 | NetBSD 4.0 | ||||
2008–01 | Linux 2.6.24 | ReactOS 0.3.4 | |||
2008–02 | Windows Vista Service Pack 1 Windows Server 2008 |
DragonFly BSD 1.12 FreeBSD 7.0 |
|||
2008–03 | IBM i 6.1 Singularity 1.1 | ||||
2008–04 | Windows Mobile 6.1 Windows XP Service Pack 3 |
Linux 2.6.25 Ubuntu 8.04 (LTS) |
|||
2008–05 | OpenBSD 4.3 | Fedora Linux 9 Slackware 12.1 |
Solaris 10 5/08 OpenSolaris 2008.05 BS2000/OSD v8.0A | ||
2008–06 | SUSE Linux 11.0 | MorphOS 2.0 ReactOS 0.3.5 | |||
2008–07 | iPhone OS 2 | DragonFly BSD 2.0 | Linux 2.6.26 | ||
2008–08 | STOP 6.5 ReactOS 0.3.6 | ||||
2008–09 | iPhone OS 2.1 | AmigaOS 4.1 z/OS V1R10 MorphOS 2.1 | |||
2008–10 | Linux 2.6.27 Ubuntu 8.10 Android 1.0 |
Solaris 10 10/08 OKL4 3.0 | |||
2008–11 | iPhone OS 2.2 | OpenBSD 4.4 | Fedora Linux 10 | Singularity 2.0 ReactOS 0.3.7 Genode 8.11[51] | |
2008–12 | Linux 2.6.28 Slackware 12.2 |
MorphOS 2.2 OpenSolaris 2008.11 | |||
2009–01 | |||||
2009–02 | DragonFly BSD 2.2 | Debian 5.0 Android 1.1 |
ReactOS 0.3.8 | ||
2009–03 | Linux 2.6.29 | ||||
2009–04 | NetBSD 5.0 | Ubuntu 9.04 Android 1.5 |
ReactOS 0.3.9 | ||
2009–05 | Windows Mobile 6.5 Windows Vista Service Pack 2 |
OpenBSD 4.5 | Solaris 10 5/09 | ||
2009–06 | iPhone OS 3 | Linux 2.6.30 Fedora Linux 11 Palm webOS 1 |
AmigaOS 4.1 OpenSolaris 2009.06 | ||
2009–07 | ReactOS 0.3.10 | ||||
2009–08 | Mac OS X Snow Leopard (v10.6) | Slackware 13.0 | MorphOS 2.3 | ||
2009–09 | iPhone OS 3.1 | DragonFly BSD 2.4 | Linux 2.6.31 Android 1.6 |
||
2009–10 | Windows 7 Windows Server 2008 R2 |
OpenBSD 4.6 | Ubuntu 9.10 Android 2.0 |
Solaris 10 10/09 MorphOS 2.4 | |
2009–11 | FreeBSD 8.0 | Fedora Linux 12 openSUSE 11.2 |
|||
2009–12 | Linux 2.6.32 | ReactOS 0.3.11 |
Year–month | Windows | Apple | BSD | Linux | Others |
---|---|---|---|---|---|
2010–01 | Android 2.1 | AmigaOS 4.1 Upd. 1 | |||
2010–02 | Linux 2.6.33 | ||||
2010–03 | |||||
2010–04 | iPhone OS 3.2 | DragonFly BSD 2.6 | Ubuntu 10.04 (LTS) | AmigaOS 4.1 Upd. 2 IBM i 7.1 | |
2010–05 | OpenBSD 4.7 | Linux 2.6.34 Fedora Linux 13 Android 2.2 |
eComStation 2.0 | ||
2010–06 | iOS 4 | MorphOS 2.5 OpenVMS 8.4 | |||
2010–07 | openSUSE 11.3 | ||||
2010–08 | Linux 2.6.35 | ||||
2010–09 | iOS 4.1 | Solaris 10 9/10 AIX 7.1 | |||
2010–10 | Windows Phone 7 | DragonFly BSD 2.8 | Linux 2.6.36 Fedora Linux 14 Ubuntu 10.10 |
MorphOS 2.6 ReactOS 0.3.12 | |
2010–11 | iOS 4.2 | NetBSD 5.1 OpenBSD 4.8 |
Red Hat Enterprise Linux 6 | ||
2010–12 | Android 2.3 | MorphOS 2.7 | |||
2011–01 | Linux 2.6.37 | ||||
2011–02 | Windows 7 Service Pack 1 | Debian 6.0 Android 3.0 |
|||
2011–03 | Windows CE 7.0 | iOS 4.3 | Linux 2.6.38 openSUSE 11.4 |
ReactOS 0.3.13 | |
2011–04 | Windows Home Server 2011 | DragonFly BSD 2.10 | Ubuntu 11.04 Slackware 13.37 |
||
2011–05 | OpenBSD 4.9 | Linux 2.6.39 Fedora Linux 15 Android 3.1 |
AmigaOS 4.1 Upd. 1 (for Classic) eComStation 2.1 | ||
2011–06 | iOS 5 | ChromeOS (first shipped) | 9front | ||
2011–07 | Mac OS X Lion (v10.7) | Linux 3.0 Android 3.2 HP webOS 3 |
AmigaOS 4.1 Upd. 3 | ||
2011–08 | |||||
2011–09 | Windows Phone 7.5 | ||||
2011–10 | Linux 3.1 Ubuntu 11.10 Android 4.0 |
||||
2011–11 | OpenBSD 5.0 | Fedora Linux 16 openSUSE 12.1 |
Solaris 11 11/11 | ||
2011–12 | AmigaOS 4.1 Upd. 4 | ||||
2012–01 | FreeBSD 9.0 | Linux 3.2 | FreeDOS 1.1 | ||
2012–02 | DragonFly BSD 3.0 | ReactOS 0.3.14 Minix 3.2 | |||
2012–03 | iOS 5.1 | Linux 3.3 Android 4.0.4 |
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2012–04 | Ubuntu 12.04 (LTS) | ||||
2012–05 | OpenBSD 5.1 | Linux 3.4 Fedora Linux 17 |
DexOS | ||
2012–06 | BS2000/OSD 9.0 MorphOS 3.0 | ||||
2012–07 | OS X Mountain Lion (v10.8) | Linux 3.5 Android 4.1 openSUSE 12.2 |
MorphOS 3.1 AmigaOS 4.1 Upd. 5 | ||
2012–08 | |||||
2012–09 | Windows Server 2012 | iOS 6 | Linux 3.6 Slackware 14.0 Qubes OS |
||
2012–10 | Windows 8 Windows Phone 8 |
NetBSD 6.0 OpenBSD 5.2 |
Ubuntu 12.10 | Solaris 11.1 | |
2012–11 | DragonFly BSD 3.2 | Android 4.2 | Haiku R1 Alpha 4 | ||
2012–12 | FreeBSD 9.1 | ||||
2013–01 | iOS 6.1 | Fedora Linux 18 | BlackBerry 10 Solaris 10 1/13 | ||
2013–02 | Windows Phone 7.8 | ||||
2013–03 | openSUSE 12.3 | ||||
2013–04 | DragonFly BSD 3.4 | Linux 3.9 Ubuntu 13.04 |
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2013–05 | NetBSD 6.1 OpenBSD 5.3 |
Debian 7.0 | ReactOS 0.3.15 MorphOS 3.2 | ||
2013–06 | Windows CE 8.0 (2013) | Linux 3.10 | |||
2013–07 | Fedora Linux 19 Android 4.3 |
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2013–08 | |||||
2013–09 | iOS 7 | FreeBSD 9.2 | Linux 3.11 | MorphOS 3.3 z/OS Version 2.1 | |
2013–10 | Windows 8.1 Windows Server 2012 R2 |
OS X Mavericks (v10.9) | Ubuntu 13.10 | ||
2013–11 | DragonFly BSD 3.6 OpenBSD 5.4 |
Slackware 14.1 openSUSE 13.1 Android 4.4 Linux 3.12 |
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2013–12 | Fedora Linux 20 | MorphOS 3.4 Muen[52] separation kernel | |||
2014–01 | FreeBSD 10.0 | Linux 3.13 | |||
2014–02 | ReactOS 0.3.16 MorphOS 3.5 | ||||
2014–03 | iOS 7.1 | Linux 3.14 | |||
2014–04 | Windows Phone 8.1 | Ubuntu 14.04 (LTS) | Solaris 11.2 | ||
2014–05 | OpenBSD 5.5 | ||||
2014–06 | DragonFly BSD 3.8 | Linux 3.15 Red Hat Enterprise Linux 7 |
MorphOS 3.6 | ||
2014–07 | |||||
2014–08 | Linux 3.16 | MorphOS 3.7 | |||
2014–09 | iOS 8 | Minix 3.3 | |||
2014–10 | OS X Yosemite (v10.10) iOS 8.1 |
Ubuntu 14.10 Linux 3.17 |
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2014–11 | OpenBSD 5.6 FreeBSD 10.1 DragonFly BSD 4.0 |
openSUSE 13.2 Android 5.0 |
IBM i 7.2 ReactOS 0.3.17 | ||
2014–12 | Linux 3.18 Fedora Linux 21 |
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2015–01 | |||||
2015–02 | Linux 3.19 | ||||
2015–03 | iOS 8.2 | ||||
2015–04 | iOS 8.3 watchOS 1 |
Linux 4.0 Debian 8.0 Ubuntu 15.04 |
Redox OS | ||
2015–05 | Fedora Linux 22 | BS2000/OSD 10.0 | |||
2015–06 | iOS 8.4 | Linux 4.1 | MorphOS 3.9 | ||
2015–07 | Windows 10 (1507) | ||||
2015–08 | FreeBSD 10.2 | Linux 4.2 | |||
2015–09 | OS X El Capitan (v10.11) iOS 9 watchOS 2 |
NetBSD 7.0 | z/OS Version 2.2[53] | ||
2015–10 | iOS 9.1 tvOS9 |
Android 6.0 Ubuntu 15.10 |
AIX 7.2[54] Solaris 11.3[55] | ||
2015–11 | Windows 10 November Update (1511) Windows 10 Mobile (1511) |
tvOS9.1 | Linux 4.3 Fedora Linux 23 openSUSE Leap 42.1 |
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2015–12 | iOS 9.2 watchOS 2.1 tvOS9.2 |
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2016–01 | Linux 4.4 | Minix 3.4 | |||
2016–02 | ReactOS 0.4 | ||||
2016–03 | iOS 9.3 watchOS 2.2 tvOS9.3 |
OpenBSD 5.9 FreeBSD 10.3 |
Linux 4.5 | ||
2016–04 | Ubuntu 16.04 | IBM i 7.3 ReactOS 0.4.1 | |||
2016–05 | Linux 4.6 | ||||
2016–06 | Slackware 14.2 Fedora Linux 24 Linux Mint 18 |
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2016–07 | Linux 4.7 | ||||
2016–08 | Windows 10 Anniversary Update (1607) Windows 10 Mobile Anniversary Update (1607) |
DragonFly BSD 4.6 | Android 7.0 | ReactOS 0.4.2 | |
2016–09 | Windows Server 2016 (1607) | macOS Sierra (v10.12) iOS 10 watchOS 3 tvOS10 |
OpenBSD 6.0 | Linux 4.8 | |
2016–10 | iOS 10.1 watchOS 3.1 |
NetBSD 7.0.2 FreeBSD 11.0 |
Android 7.1 Ubuntu 16.10 |
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2016–11 | Oracle Linux 7.3 Fedora Linux 25 openSUSE Leap 42.2 |
ReactOS 0.4.3 | |||
2016–12 | iOS 10.2 tvOS10.1 |
Linux 4.9 Linux Mint 18.1 |
FreeDOS 1.2 | ||
2017–01 | |||||
2017–02 | Linux 4.10 | ReactOS 0.4.4 | |||
2017–03 | iOS 10.3 watchOS 3.2 tvOS10.2 |
DragonFly BSD 4.8 NetBSD 7.1 |
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2017–04 | Windows 10 Creators Update (1703) Windows 10 Mobile Creators Update (1703) |
OpenBSD 6.1 | Linux 4.11 Ubuntu 17.04 |
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2017–05 | ReactOS 0.4.5 ArcaOS 5.0.0 | ||||
2017–06 | Debian 9.0 Fedora Linux 26 |
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2017–07 | Linux 4.12 openSUSE Leap 42.3 |
BS2000/OSD 11.0 ArcaOS 5.0.1 | |||
2017–08 | Android 8.0 | ||||
2017–09 | macOS High Sierra (v10.13) iOS 11 watchOS 4 tvOS11 |
Linux 4.13 | ReactOS 0.4.6 | ||
2017–10 | Windows 10 Fall Creators Update (1709) Windows 10 Mobile Fall Creators Update (1709) Windows Server 2016 Fall Creators Update (1709) |
iOS 11.1 watchOS 4.1 tvOS11.1 |
OpenBSD 6.2 DragonFly BSD 5.0 |
Ubuntu 17.10 | |
2017–11 | Linux 4.14 Fedora Linux 27 |
BareMetal 1.0.0 | |||
2017–12 | iOS 11.2 watchOS 4.2 tvOS11.2 |
Android 8.1 | ReactOS 0.4.7 | ||
2018–01 | Linux 4.15 | ||||
2018–02 | ArcaOS 5.0.2 | ||||
2018–03 | iOS 11.3 watchOS 4.3 tvOS11.3 |
NetBSD 7.1.2 | Genode Sculpt EA | ||
2018–04 | Windows 10 April 2018 Update (1803) | OpenBSD 6.3 DragonFly BSD 5.2 |
Linux 4.16 Ubuntu 18.04 (LTS) |
ReactOS 0.4.8 | |
2018–05 | iOS 11.4 tvOS11.4 |
Fedora Linux 28 openSUSE Leap 15.0 |
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2018–06 | Linux 4.17 | Genode Sculpt TC | |||
2018–07 | NetBSD 8.0 | SUSE Linux Enterprise 15 | ReactOS 0.4.9 | ||
2018–08 | NetBSD 7.2 | Linux 4.18 Android 9.0 |
ArcaOS 5.0.3 Solaris 11.4 | ||
2018–09 | macOS Mojave (v10.14) iOS 12 watchOS 5 tvOS12 |
Genode Sculpt VC[56] | |||
2018–10 | Windows 10 October 2018 Update (1809) Windows Server 2019 (1809) |
iOS 12.1 watchOS 5.1 tvOS12.1 |
OpenBSD 6.4 | Linux 4.19 Ubuntu 18.10 Fedora Linux 29 |
SerenityOS |
2018–11 | ReactOS 0.4.10 | ||||
2018–12 | DragonFly BSD 5.4 FreeBSD 12.0 |
Linux 4.20 | |||
2019–01 | |||||
2019–02 | |||||
2019–03 | iOS 12.2 watchOS 5.2 tvOS12.2 |
Linux 5.0 | ReactOS 0.4.11 | ||
2019–04 | Ubuntu 19.04 Fedora Linux 30 |
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2019–05 | Windows 10 May 2019 Update (1903) | iOS 12.3 tvOS12.3 |
OpenBSD 6.5
NetBSD 8.1 |
Linux 5.1 Red Hat Enterprise Linux 8 openSUSE Leap 15.1 |
|
2019–06 | DragonFly BSD 5.6 | SUSE Linux Enterprise 15 SP1 | IBM i 7.4 | ||
2019–07 | iOS 12.4 watchOS 5.3 tvOS12.4 |
Debian 10.0 Linux 5.2 |
ArcaOS 5.0.4 | ||
2019–08 | |||||
2019–09 | iOS 13 iOS 13.1 iPadOS 13.1 watchOS 6 tvOS13 |
Linux 5.3 Android 10.0 |
ReactOS 0.4.12 | ||
2019–10 | iOS 13.2 iPadOS 13.2 watchOS 6.1 macOS Catalina (v10.15) |
OpenBSD 6.6 | Ubuntu 19.10 Fedora Linux 31 |
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2019–11 | Windows 10 November 2019 Update (1909) | FreeBSD 12.1 | Linux 5.4 | ||
2019–12 | iOS 13.3 iPadOS 13.3 |