Extended Security Maintenance
Security updates for Ubuntu LTS for additional 3-5 years
Continue to receive security updates for the Ubuntu base OS, critical software packages and infrastructure components with Extended Security Maintenance (ESM). Depending upon the LTS release, ESM provides three to five additional years of security maintenance.
ESM is available through an Ubuntu Advantage for Infrastructure subscription for physical servers, virtual machines, containers and desktops, and is free for personal use. Ubuntu Pro premium images are optimised for the public cloud, and provide security maintenance for high and critical CVEs for the entire collection of software packages shipped with Ubuntu.
Is Ubuntu 16.04 LTS still supported beyond April 2021?
Ubuntu 16.04 LTS will still be supported beyond its free initial five-year maintenance period in April 2021, as it transitions to the extended security maintenance phase - with three additional years of security ensured.
ESM continues security updates for high and critical CVEs (Common Vulnerabilities and Exposures).
|Ubuntu 14.04 LTS (Trusty Tahr)||
|Ubuntu 16.04 LTS (Xenial Xerus) ›||
ESM on Azure, AWS and Google Cloud with Ubuntu Pro
If you are running Ubuntu 16.04 LTS images on the public cloud and are looking for continued security coverage with ESM, it is recommended to launch new, Ubuntu Pro images for Azure, AWS and Google Cloud. Ubuntu Pro images are paid, premium images that are optimised and priced for the cloud, with security and compliance features built in.
Do all levels of Ubuntu Advantage for Infrastructure have access to Ubuntu ESM?
Yes. Ubuntu ESM is available for UA-I Essential, Standard and Advanced customers. For more information on levels please visit our pricing page. Existing UA customers can retrieve their credentials through the Ubuntu Advantage portal.
How can we ensure the security of our Ubuntu systems after the end of Standard Security Maintenance?
To ensure security continuity when a particular release reaches the end of its Standard Security Maintenance window, sign up for Ubuntu Advantage for free on up to 3 machines or through a paid subscription for enterprise use.
How long will Ubuntu ESM be maintained?
This depends on the release. Ubuntu 14.04 (Trusty Tahr) and 16.04 (Xenial Xerus) will have updates provided for up to three years after the end of the Standard Security Maintenance window. Ubuntu 18.04 (Bionic Beaver) and subsequent releases until further announcement will have ESM updates provided for up to five years.
|Release||ESM Duration||End of Life|
|Ubuntu 14.04 (Trusty Tahr)||3 years||April 2022|
|Ubuntu 16.04 (Xenial Xerus)||3 years||April 2024|
|Ubuntu 18.04 (Bionic Beaver)||5 years||April 2028|
|Ubuntu 20.04 (Focal Fossa)||5 years||April 2030|
Is it possible to purchase Ubuntu ESM months down the road when needed, with or without backdating the cost, or does it need to be in place in advance?
You can purchase Ubuntu Advantage support at any time. It does not need to be in place in advance, although we strongly recommend you eliminate the gap between when Ubuntu ESM is enabled on your system(s), to avoid exposing your systems to security vulnerabilities. Ubuntu Advantage is priced year-over-year so there is no backdating.
We're mirroring the repository on our internal Landscape server. Can we still get Ubuntu ESM if using Landscape?
ESM is just a regular Ubuntu archive, but authenticated and served over HTTPS. Archive mirroring is already available in Landscape and is a supported mechanism for mirroring the ESM archive.
Ubuntu 16.04 LTS moving to Extended Security Maintenance period
Ubuntu 16.04 LTS Xenial Xerus transitions to the extended security maintenance (ESM) period April 2021. Register for our webinar to learn about the ESM period and six key considerations when assessing and planning your migration path.