This chart shows the lifecycle of major enterprise operating systems. The end of life is marked by the end of official security support. The chart will be updated every now and then.
| 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
| Windows XP Oct 25, 2001 – Apr 8, 2014 |
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| Solaris 9 May 18, 2002 – Oct 30, 2014 |
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| Windows Server 2003 Apr 24, 2003 – Jul 14, 2015 |
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| Red Hat Enterprise Linux 3 Oct 23, 2003 – Jan 30, 2014 |
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| Solaris 10 Jan 31, 2005 – Jan 31 2018 |
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| Red Hat Enterprise Linux 4 Feb 15, 2005 – Feb 28, 2015 |
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| SUSE Linux Enterprise Server 10 + LTSP Jul 17, 2006 – Jul 31, 2016 |
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| Windows Vista Nov 6, 2006 – Apr 10, 2017 |
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| Red Hat Enterprise Linux 5 14 Mar, 2007 – 2020 |
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| Windows Server 2008 Feb 4, 2008 – Jul 10, 2018 |
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| FreeBSD 7 Feb 27, 2008 – Feb 28, 2013 |
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| Ubuntu 8.04LTS (Hardy Heron) Apr 24, 2008 – Apr 2013 |
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| Debian 5.0 (Lenny) Feb 14, 2009 – Feb 6, 2012 (Next+1yr) |
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| SUSE Linux Enterprise Server 11 + LTSP Mar 24, 2009 – Mar 31, 2019 |
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| Windows Server 2008 R2 Jul 22, 2009 – Jan 14, 2020 |
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| Windows 7 Oct 23rd, 2009 – Jan 14, 2020 |
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| FreeBSD 8 Nov 25, 2009 – 2015+ |
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| Ubuntu 10.04LTS (Lucid Lynx) Apr 24, 2010 – Apr 2015 |
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| Red Hat Enterprise Linux 6 Nov 10, 2010 – 2023 |
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| Debian 6 (Squeeze) Feb 6, 2011 – May 4, 2014 (Next+1yr) |
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| Solaris 11 Nov 8, 2011 – 2024 |
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| FreeBSD 9 Jan 12, 2012 – 2015+ |
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| Ubuntu 12.04LTS Apr 26, 2012 – Apr 2017 |
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| Windows Server 2012 / Windows 8 Sep 4, 2012 – Jan 10, 2023 |
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| Debian 7 (Wheezy) May 4, 2013 – 2016 (Next+1yr) |
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| FreeBSD 10 Jan, 2014 – 2016+ |
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| Ubuntu 14.04LTS Apr 2014 – Apr 2019 |
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| Red Hat Enterprise Linux 7 Jun 10, 2014 – 2027 |
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| SUSE Linux Enterprise Server 12 + LTSP Q4 2014 – 2024 |
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| Debian 8 (Jessie) 2015 – 2018 (Next+1yr) |
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| 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |