Most Ubuntu versions recieve support of 18 months, but LTS releases get 3 years on the desktop and 5 on the server.
Only 6.06 and 8.04 have been LTSs so far.
Also worth mentioning that 'recieves support' does NOT mean recieves free tech support. Support means recieving bug fixes and stability updates.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.3 LTS
Release: 12.04
Codename: precise
Only 6.06 and 8.04 have been LTSs so far.
Also worth mentioning that 'recieves support' does NOT mean recieves free tech support. Support means recieving bug fixes and stability updates.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.3 LTS
Release: 12.04
Codename: precise
