Linux Server Operating Systems

CentOS 8.5 Released November 2021
CentOS 8.4 Released June 2021
CentOS 8.3 Released December 2020
CentOS 8.2 Released June 2020
CentOS 8.1 Released January 2020
CentOS 8.0 Released September 2019
CentOS 7.9 Released November 2020
CentOS 7.8 Released April 2020
CentOS 7.7 Released September 2019
CentOS 7.6 Released December 2018
CentOS 7.5 Released May 2018
CentOS 7.4 Released September 2017
CentOS 7.3 Released December 2016
CentOS 7.2 Released December 2015
CentOS 7.1 Released March 2015
CentOS 7.0 Released July 2014
CentOS 6.10 Released July 2018
CentOS 6.9 Released April 2017
CentOS 6.8 Released May 2016
CentOS 6.7 Released August 2015
CentOS 6.6 Released October 2014
CentOS 6.5 Released December 2013
CentOS 6.4 Released March 2013
CentOS 6.3 Released July 2012
CentOS 6.2 Released December 2011
CentOS 6.1 Released December 2011
CentOS 6.0 Released July 2011
CentOS 5.11 Released September 2014
CentOS 5.10 Released October 2013
CentOS 5.9 Released January 2013
CentOS 5.8 Released March 2012
CentOS 5.7 Released September 2011
CentOS 5.6 Released April 2011
CentOS 5.5 Released May 2010
CentOS 5.4 Released October 2009
CentOS 5.3 Released March 2009
CentOS 5.2 Released June 2008
CentOS 5.1 Released December 2007
CentOS 5.0 Released April 2007
CentOS 4.9 Released March 2011
CentOS 4.8 Released August 2009
CentOS 4.7 Released September 2008
CentOS 4.6 Released December 2007
CentOS 4.5 Released May 2007
CentOS 4.4 Released August 2006
CentOS 4.3 Released March 2006
CentOS 4.2 Released October 2005
CentOS 4.1 Released June 2005
CentOS 4.0 Released March 2005
CentOS 3.9 Released July 2007
CentOS 3.8 Released August 2006
CentOS 3.7 Released April 2006
CentOS 3.6 Released November 2005
CentOS 3.5 Released June 2005
CentOS 3.4 Released January 2005
CentOS 3.3 Released September 2004
CentOS 3.1 Released March 2004
CentOS 2.1 Released May 2004
Debian 12 Bookworm Released June 2023
Debian 11 Bullseye Released August 2021
Debian 10 Buster Released July 2019
Debian 9 Stretch Released June 2017
Debian 8 Jessie Released April 2015
Debian 7 Wheezy Released May 2013
Debian 6 Squeeze Released February 2011
Debian 5 Lenny Released February 2009
Debian 4 Etch Released April 2007
Debian 3.1 Sarge Released June 2005
Debian 3.0 Woody Released July 2002
Debian 2.2 Potato Released August 2000
Debian 2.1 Slink Released March 1999
Debian 2.0 Hamm Released July 1998
Debian 1.3 Bo Released June 1997
Debian 1.2 Rex Released December 1996
Debian 1.1 Buzz Released June 1996
Red Hat Enterprise Linux (RHEL) 10 Released May 2025
Red Hat Enterprise Linux (RHEL) 9 Released May 2022
Red Hat Enterprise Linux (RHEL) 8 Released May 2019
Red Hat Enterprise Linux (RHEL) 7 Released December 2013
Red Hat Enterprise Linux (RHEL) 6 Released November 2010
Red Hat Enterprise Linux (RHEL) 5 Released March 2007
Red Hat Enterprise Linux (RHEL) 4 Released February 2005
Red Hat Enterprise Linux (RHEL) 3 Released October 2003
Red Hat Enterprise Linux (RHEL) 2.1 Released March 2002
Ubuntu 25.10 Questing Quokka Release schedule October 2025 - Upcoming Support
Ubuntu 25.04 Plucky Puffin Released April 2025
Ubuntu 24.10 Oracular Oriole Released October 2024
Ubuntu 24.04 Noble Numbat Released April 2024
Ubuntu 23.10 Mantic Minotaur Released October 2023
Ubuntu 23.04 Lunar Lobster Released April 2023
Ubuntu 22.10 Kinetic Kudu Released October 2022
Ubuntu 22.04 Jammy Jellyfish Released April 2022
Ubuntu 21.10 Impish Indri Released October 2021
Ubuntu 21.04 Hirsute Hippo Released April 2021
Ubuntu 20.10 Groovy Gorilla Released October 2020
Ubuntu 20.04 Focal Fossa Released April 2020
Ubuntu 19.10 Eoan Ermine Released October 2019
Ubuntu 19.04 Disco Dingo Released April 2019
Ubuntu 18.10 Cosmic Cuttlefish Released October 2018
Ubuntu 18.04 Bionic Beaver Released April 2018
Ubuntu 17.10 Artful Aardvark Released October 2017
Ubuntu 17.04 Zesty Zapus Released April 2017
Ubuntu 16.10 Yakkety Yak Released October 2016
Ubuntu 16.04 Xenial Xerus Released April 2016
Ubuntu 15.10 Wily Werewolf Released October 2015
Ubuntu 15.04 Vivid Vervet Released April 2015
Ubuntu 14.10 Utopic Unicorn Released October 2014
Ubuntu 14.04 Trusty Tahr Released April 2014
Ubuntu 13.10 Saucy Salamander Released October 2013
Ubuntu 13.04 Raring Ringtail Released April 2013
Ubuntu 12.10 Quantal Quetzal Released October 2012
Ubuntu 12.04 Precise Pangolin Released April 2012
Ubuntu 11.10 Oneiric Ocelot Released October 2011
Ubuntu 11.04 Natty Narwhal Released April 2011
Ubuntu 10.10 Maverick Meerkat Released October 2010
Ubuntu 10.04 Lucid Lynx Released April 2010
Ubuntu 9.10 Karmic Koala Released October 2009
Ubuntu 9.04 Jaunty Jackalope Released April 2009
Ubuntu 8.10 Intrepid Ibex Released October 2008
Ubuntu 8.04 Hardy Heron Released April 2008
Ubuntu 7.10 Gutsy Gibbon Released October 2007
Ubuntu 7.04 Feisty Fawn Released April 2007
Ubuntu 6.10 Edgy Eft Released October 2006
Ubuntu 6.06 Dapper Drake Released June 2006
Ubuntu 5.10 Breezy Badger Released October 2005
Ubuntu 5.04 Hoary Hedgehog Released April 2005
Ubuntu 4.10 Warty Warthog Released October 2004