Как стало известно новый релиз Ubuntu 14.04 LTS будет называться Trusty Tahr. Релиз Ubuntu 14.04 выйдет в апреле 2014 года и будет поддерживаться в течение 5 лет, так как является релизом с долгосрочной поддержкой (LTS).


Вот график выхода Ubuntu 14.04 LTS Trusty Tahr

Week	Date (Thursday)	14.04 LTS Events
October 2013
1	October 24th
2	October 31st
November 2013
3	November 7th
4	November 14th
5	November 21st
6	November 28th
December 2013
7	December 5th
8	December 12th
9	December 19th	Alpha 1 (for opt-in flavors)
10	December 26th
January 2014
11	January 2nd
12	January 9th
13	January 16th
14	January 23th	Alpha 2 (for opt-in flavors)
15	January 30th
February 2014
16	February 6th
17	February 13th
18	February 20th
19	February 27th	Beta 1
March 2014
20	March 6th
21	March 13th
22	March 20th
23	March 27th	Final Beta
April 2014
24	April 3rd
25	April 10th	ReleaseCandidate
26	April 17th	FinalRelease, Ubuntu 14.04 LTS

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Источник: https://wiki.ubuntu.com