Canonical is extending its support for Ubuntu Long Term Support (LTS) releases to 15 years, up from the current lifecycle window of 12.

All Ubuntu LTS releases receive 5 years of standard updates, critical fixes and security patches. A further 5 years of security coverage is available by enabling Ubuntu Pro, which businesses pay for but home users can use for free on up to 5 machines.

Last year Canonical announced the Legacy Add-On for Ubuntu Pro, an opt-in — and paid — extra that gives businesses, enterprises and hardware-dependent industries an additional 2 years of security coverage to their plans – for a price.

Now, the support period for the Legacy add-on is expanding to 5 years.

The change is available for Ubuntu 14.04 LTS (Trusty Tahr) from today, making Ubuntu 14.04 the longest-lived LTS to day, supported for a full 15 years since its release. Other Ubuntu LTS releases become eligible for the legacy add-on 10 years after release.

Ubuntu’s 15-year lifecycle

Why the change? Canonical cite “the positive reception and growing interest in longer lifecycle coverage” as reason for it deciding to “extend the Legacy add-on to 5 years” and open a 15-year security maintenance and support window.

It adds that “in highly regulated or hardware-dependent industries, upgrades threaten to disrupt tightly controlled security and compliance” and that the complexities in upgrading critical productions systems can make ongoing support a ‘more sensible option’.

The additional support isn’t just about refusal to upgrade, but breathing room: customers get more time to plan, fund and manage transitions and ensure they meet any ongoing compliance requirements – Ubuntu is run in places where “risk it” isn’t permitted.

A breakdown of the new support lifecycle for Ubuntu long-term support releases:

  • Standard support: 5 years
  • ESM via Ubuntu Pro: +5 Years
  • Legacy Add-on for Ubuntu Pro: +5 years
  • Maximum support period: 15 years

On Ubuntu 16.04 LTS and above there’s nothing to yet as the Legacy add-on is only available to after the first 10 years of updates has elapsed.

The Legacy add-on is priced at a 50% premium compared to the standard Ubuntu Pro. Canonical ask those interesting in using it to contact the Canonical Sales team or reach out to their account manager.

The legacy add-on has to be explicitly enabled

Can regular/home users enable the Legacy Add-on for free? AIUI, no. While none of the support documents mention home users, they all mention business customers and the fact the Legacy Add-on has to be enabled via the sales team.