The Wayback Machine - https://web.archive.org/web/20180320144709/https://www.ubuntu.com/info/release-end-of-life

Ubuntu release end of life

When an Ubuntu release reaches its “end of life” it receives no further maintenance updates, including critical security upgrades. We highly recommend that you upgrade to a recent version of Ubuntu at this point.

This command will print the exact status of your system.

For information on previous and upcoming releases and please see the Ubuntu Releases wiki for more details.

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Ubuntu Server and desktop release end of life

Standard Ubuntu releases are supported for 9 months and Ubuntu LTS (long-term support) releases are supported for five years on both the desktop and the server. During that time, there will be security fixes and other critical updates. The Ubuntu support lifecycle is as follows:

Ubuntu Desktop release cycle, 5 year long-term support
  Released End of Life
Ubuntu 22.04 LTS April 2022 April 2027
Ubuntu 21.10 October 2021 July 2022
Ubuntu 21.04 April 2021 January 2022
Ubuntu 20.10 October 2020 July 2021
Ubuntu 20.04 LTS April 2020 April 2025
Ubuntu 19.10 October 2019 July 2020
Ubuntu 19.04 April 2019 January 2020
Ubuntu 18.10 October 2018 July 2019
Ubuntu 18.04 LTS April 2018 April 2023
Ubuntu 17.10 October 2017 July 2018
Ubuntu 17.04 April 2017 January 2018
Ubuntu 16.10 October 2016 June 2017
Ubuntu 16.04 LTS April 2016 April 2021
Ubuntu 14.04 LTS April 2014 April 2019
Ubuntu 12.04 LTS April 2012 April 2017
Ubuntu 10.04 LTS April 2010 April 2015

Kernel release end of life

The Ubuntu LTS enablement stacks provide newer kernel and X support for existing Ubuntu LTS releases. These can be installed manually, or are automatically shipped if installing from 12.04.2/14.04.2 and newer release media. These newer enablement stacks are meant for desktop and server, and even recommended for cloud or virtual images. The Ubuntu kernel support lifecycle is as follows:

Release Released End of life
Ubuntu 18.04.5 August 2020 April 2023
Ubuntu 20.04 April 2020 January 2021
Ubuntu 18.04.4 February 2020 July 2020
Ubuntu 19.10 October 2019 July 2020
Ubuntu 18.04.3 August 2019 January 2020
Ubuntu 19.04 April 2019 January 2020
Ubuntu 18.04.2 February 2019 July 2019
Ubuntu 18.10 October 2018 July 2019
Ubuntu 18.04.1 (v.4.15) July 2018 April 2023
Ubuntu 16.04.5 (v.4.15) August 2018 April 2021
Ubuntu 18.04.0 (v.4.15) April 2018 April 2023
Ubuntu 16.04.4 (v.4.13) February 2018 August 2018
Ubuntu 17.10 October 2017 July 2018
Ubuntu 16.04.3 (v.4.10) August 2017 February 2018
Ubuntu 17.04 April 2017 January 2018
Ubuntu 16.04.2 (v4.8) February 2017 August 2017
Ubuntu 16.10 October 2016 July 2017
Ubuntu 16.04.1 (v4.4) August 2016 April 2021
Ubuntu 14.04.5 August 2016 May 2019
Ubuntu 16.04.0 (v4.4) April 2016 April 2021
Ubuntu 14.04.4 (v4.2) February 2016 August 2016
Ubuntu 15.10 (v4.2) October 2015 October 2015
Ubuntu 14.04.3 (v3.19) August 2015 August 2016
Ubuntu 15.04 (v3.19) April 2015 January 2016
Ubuntu 14.04.2 (v3.16) February 2015 February 2016
Ubuntu 14.10 (v3.16) October 2010 July 2011
Ubuntu 14.04.1 (v3.13) August 2014 February 2016
Ubuntu 12.04.5 (v3.13) August 2014 May 2017
Ubuntu 14.04.0 (v3.13) April 2014 March 2019
Ubuntu 12.04.4 (v3.11) February 2014 August 2014
Ubuntu 13.10 (v3.11) October 2010 July 2011
Ubuntu 12.04.3 (v3.8) August 2013 August 2014
Ubuntu 13.04 (v3.8) April 2013 January 2014
Ubuntu 12.04.2 (v3.5) February 2013 August 2014
Ubuntu 12.10 (v3.5) October 2012 April 2014
Ubuntu 12.04.1 (v3.2) August 2012 April 2017
Ubuntu 12.04.0 (v3.2) April 2012 April 2017

For more information on previous and upcoming kernel releases please see the Ubuntu LTS Enablement Stack wiki page.

Ubuntu OpenStack release end of life

Canonical’s Ubuntu Cloud archive allows users the ability to install newer releases of Ubuntu OpenStack on an Ubuntu Server as they become available up through the next Ubuntu LTS release. The Ubuntu OpenStack support lifecycle is as follows:

Release Released End of life Extended customer support
OpenStack Rocky August 2018 February 2020  
OpenStack Queens April 2018 April 2023  
Ubuntu 18.04 LTS April 2018 April 2023  
OpenStack Queens February 2018 April 2021  
OpenStack Pike August 2017 February 2019  
OpenStack Ocata February 2017 August 2018 February 2020
OpenStack Newton October 2016 April 2018  
OpenStack Mitaka April 2016 April 2021  
Ubuntu 16.04 LTS April 2016 April 2021  
OpenStack Mitaka April 2016 April 2019  
OpenStack Liberty October 2015 April 2017  
OpenStack Kilo April 2015 October 2016 April 2018
OpenStack Juno October 2014 April 2016  
OpenStack Icehouse April 2014 April 2019  
Ubuntu 14.10 LTS April 2014 April 2019  
OpenStack Icehouse April 2014 April 2017  
OpenStack Havana October 2013 July 2014  
OpenStack Grizzly May 2013 August 2014  
OpenStack Folsom September 2012 June 2014  
OpenStack Essex April 2012 April 2017  
Ubuntu 12.04 LTS April 2012 April 2017  

For more information on previous and upcoming Ubuntu OpenStack releases please see the Ubuntu Cloud Archive wiki page.