Every fourth release, in the second quarter of even-numbered years, has been designated as a Long Term Support (LTS) release, indicating that they are supported and receive updates for five years, with paid technical support also available from Canonical Ltd.However the desktop version of LTS releases before 12.04 were supported for only three years.
Ubuntu 6.06 was released behind schedule, having been intended as 6.04.
It is sometimes jokingly described as their first 'Late To Ship' (LTS) release.
Releases 6.06, 8.04, 10.04, 12.04, 14.04, and 16.04 are the LTS releases.
Non-LTS releases prior to 13.04 have typically been supported for 18 months, and have always been supported until at least the date of the next LTS release.
a menu editor (Alacarte), an easy language selector, logical volume management support, full Hewlett-Packard printer support, OEM installer support, a new Ubuntu logo in the top-left, and Launchpad integration for bug reporting and software development.
was Canonical's fourth release, and the first long-term support (LTS) release.
a graphical installer on Live CD (Ubiquity), Usplash on shutdown as well as startup, a network manager for easy switching of multiple wired and wireless connections, Humanlooks theme implemented using Tango guidelines, based on Clearlooks and featuring orange colors instead of brown, and GDebi graphical installer for package files.
Ubuntu 6.10 added several new features including a heavily modified Human theme, Upstart init daemon, automated crash reports (Apport), Tomboy note taking application, and F-Spot photo manager.
Ubuntu releases are made semiannually by Canonical Ltd, the developers of the Ubuntu operating system, using the year and month of the release as a version number.