karmic	server	release	20100826
maverick	server	release	20120410
hardy	server	release	20121003
natty	server	release	20121028
oneiric	server	release	20130509
raring	server	release	20140111
quantal	server	release	20140409
saucy	server	release	20140709
lucid	server	release	20150427
utopic	server	release	20150723
vivid	server	release	20160203
wily	server	release	20160715
precise	server	release	20170502
yakkety	server	release	20170719
zesty	server	release	20171208
artful	server	release	20180706
cosmic	server	release	20190628
trusty	server	release	20191107
disco	server	release	20200115
eoan	server	release	20200716.1
groovy	server	release	20210720
xenial	server	release	20210928
hirsute	server	release	20220118
impish	server	release	20220708
bionic	server	release	20230302
focal	server	release	20230302
jammy	server	release	20230303
kinetic	server	release	20230303