Ubuntu 5.04 (Hoary Hedgehog), released on 8 April 2005, was Canonical's second release of Ubuntu. Ubuntu 5.04's support ended on 31 October 2006. Ubuntu 5.04 added many new features including an Update Manager, upgrade notifier, readahead and grepmap, suspend, hibernate and standby support, dynamic frequency scaling for processors, Ubuntu hardware database, Kickstart installation, and APT authentication. Ubuntu 5.04 was the first version that allowed installation from USB devices. Beginning with Ubuntu 5.04, UTF-8 became the default character encoding.
Other releases
24.04.5 “Noble Numbat”
2026-09-13
26.04.1
2026-08-31
26.04 LTS “Resolute Raccoon”
2026-04-23
25.10
2025-10-09
25.04 “Plucky Puffin”
2025-04-17
24.04.2 “Noble Numbat”
2025-02-20
24.10 “Oracular Oriole”
2024-10-10
24.04 LTS “Noble Numbat”
2024-04-25
23.10 “Mantic Minotaur”
2023-10-12
23.04 “Lunar Lobster”
2023-04-20
22.10 “Kinetic Kudu”
2022-10-20
22.04 “Jammy Jellyfish”
2022-04-21
21.10 “Impish Indri”
2021-10-14
21.04 “Hirsute Hippo”
2021-04-22
20.10 “Groovy Gorilla”
2020-10-22
20.04 LTS “Focal Fossa”
2020-04-23
19.10 “Eoan Ermine”
2019-10-17
19.04 “Disco Dingo”
2019-04-18
18.10 “Cosmic Cuttlefish”
2018-10-18
18.04 LTS “Bionic Beaver”
2018-04-26
17.10 “Artful Aardvark”
2017-10-19
17.04 “Zesty Zapus”
2017-04-13
16.10 “Yakkety Yak”
2016-10-13
16.04 LTS “Xenial Xerus”
2016-04-21
15.10 “Wily Werewolf”
2015-10-22
15.04 “Vivid Vervet”
2015-04-23
14.10 “Utopic Unicorn”
2014-10-23
14.04 LTS “Trusty Tahr”
2014-04-17
13.10 “Saucy Salamander”
2013-10-17
13.04 “Raring Ringtail”
2013-04-25
12.10 “Quantal Quetzal”
2012-10-18
12.04 “Precise Pangolin”
2012-04-26
11.10 “Oneiric Ocelot”
2011-10-13
11.04 “Natty Narwhal”
2011-04-28
10.10 “Maverick Meerkat”
2010-10-10
10.04 “Lucid Lynx”
2010-04-29
9.10 “Karmic Koala”
2009-10-29
9.04 “Jaunty Jackalope”
2009-04-23
8.10 “Intrepid Ibex”
2008-10-30
8.04 “Hardy Heron”
2008-04-24
7.10 “Gutsy Gibbon”
2007-10-18
7.04 “Feisty Fawn”
2007-04-19
6.10 “Edgy Eft”
2006-10-28
6.06 LTS “Dapper Drake”
2006-06-01
5.10 “Breezy Badger”
2005-10-12
4.10 “Warty Warthog”
2004-10-20
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