/usr/share/distro-info/ubuntu.csv is in distro-info-data 0.36.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | version,codename,series,created,release,eol,eol-server
4.10,Warty Warthog,warty,2004-03-05,2004-10-20,2006-04-30
5.04,Hoary Hedgehog,hoary,2004-10-20,2005-04-08,2006-10-31
5.10,Breezy Badger,breezy,2005-04-08,2005-10-12,2007-04-13
6.06 LTS,Dapper Drake,dapper,2005-10-12,2006-06-01,2009-07-14,2011-06-01
6.10,Edgy Eft,edgy,2006-06-01,2006-10-26,2008-04-25
7.04,Feisty Fawn,feisty,2006-10-26,2007-04-19,2008-10-19
7.10,Gutsy Gibbon,gutsy,2007-04-19,2007-10-18,2009-04-18
8.04 LTS,Hardy Heron,hardy,2007-10-18,2008-04-24,2011-05-12,2013-05-09
8.10,Intrepid Ibex,intrepid,2008-04-24,2008-10-30,2010-04-30
9.04,Jaunty Jackalope,jaunty,2008-10-30,2009-04-23,2010-10-23
9.10,Karmic Koala,karmic,2009-04-23,2009-10-29,2011-04-29
10.04 LTS,Lucid Lynx,lucid,2009-10-29,2010-04-29,2013-05-09,2015-04-29
10.10,Maverick Meerkat,maverick,2010-04-29,2010-10-10,2012-04-10
11.04,Natty Narwhal,natty,2010-10-10,2011-04-28,2012-10-28
11.10,Oneiric Ocelot,oneiric,2011-04-28,2011-10-13,2013-05-09
12.04 LTS,Precise Pangolin,precise,2011-10-13,2012-04-26,2017-04-26
12.10,Quantal Quetzal,quantal,2012-04-26,2012-10-18,2014-05-16
13.04,Raring Ringtail,raring,2012-10-18,2013-04-25,2014-01-27
13.10,Saucy Salamander,saucy,2013-04-25,2013-10-17,2014-07-17
14.04 LTS,Trusty Tahr,trusty,2013-10-17,2014-04-17,2019-04-17
14.10,Utopic Unicorn,utopic,2014-04-17,2014-10-23,2015-07-23
15.04,Vivid Vervet,vivid,2014-10-23,2015-04-23,2016-01-23
15.10,Wily Werewolf,wily,2015-04-23,2015-10-22,2016-07-22
16.04 LTS,Xenial Xerus,xenial,2015-10-22,2016-04-21,2021-04-21
16.10,Yakkety Yak,yakkety,2016-04-21,2016-10-13,2017-07-20
17.04,Zesty Zapus,zesty,2016-10-13,2017-04-13,2018-01-25
17.10,Artful Aardvark,artful,2017-04-13,2017-10-19,2018-07-19
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