lts - What's the difference between a Long Term Support ...
askubuntu.com › questions › 16366Dec 06, 2010 · Every two years, the April release is a Long Term Support version. All normal releases (13.04 and later) are only supported for 9 months. All LTS releases (12.04 and later) are supported for five years on both the desktop and the server. Older versions had slightly different support cycles, but they haven't been included as they're all unsupported now.