Ubuntu 16.04 LTS
Ubuntu 16.04 LTS (Xenial Xerus) was released on 21 April 2016 and introduced us to snaps, a more secure app format, with faster and simpler updates, as well as LXD, the pure-container hypervisor and OpenStack Mitaka.
Is Ubuntu 16.04 LTS still supported?
Yes, Ubuntu 16.04 LTS is supported until 2026 through Canonical’s Extended Security Maintenance (ESM) product. Xenial entered the ESM period in April 2021, with security patches for five additional years, beyond the five years of standard support.
out of standard support,
upgrade to esm support
|Released||End of Life||Extended security maintenance|
|Ubuntu 22.04 LTS||April 2022||April 2027|
|Ubuntu 21.10||October 2021||July 2022|
|Ubuntu 21.04||April 2021||January 2022|
|Ubuntu 20.10||October 2020||July 2021|
|Ubuntu 20.04 LTS||April 2020||April 2025||April 2030|
|Ubuntu 19.10||October 2019||July 2020|
|Ubuntu 19.04||April 2019||January 2020|
|Ubuntu 18.10||October 2018||July 2019|
|Ubuntu 18.04 LTS||April 2018||April 2023||April 2028|
|Ubuntu 16.04 LTS||April 2016||April 2021||April 2024|
|Ubuntu 14.04 LTS||April 2014||April 2019||April 2022|
|Ubuntu 12.04 LTS||April 2012||April 2017||April 2019|
|Ubuntu 10.04 LTS||April 2010||April 2015|
Ubuntu 16.04 LTS security updates
The Ubuntu Security Team continues its dedication to providing security updates for Ubuntu 16.04 LTS beyond the five-year standard support with Extended Security Maintenance (ESM).
16.04 LTS ESM
22 October 2021
Several security issues were fixed in Mailman.
21 October 2021
libcaca could be made to crash if it received a specially crafted image.
20 October 2021
Several security issues were fixed in the Linux kernel.
19 October 2021
Several security issues were fixed in strongSwan.
18 October 2021
A security issue was fixed in nginx.
Ubuntu 16.04 LTS Extended Security Maintenance (ESM)
What is Ubuntu ESM?
Extended Security Maintenance (ESM) provides extended Linux kernel and open source security updates for the Ubuntu base OS, key infrastructure components, like Ceph, OpenStack and Kubernetes, as well as open source applications, like PostgreSQL and NGINX.
ESM is available for free on up to three machines and for broader enterprise use through an Ubuntu Advantage subscription. The subscription includes additional services such FIPS-compliant modules and the Canonical Livepatch Service to apply critical kernel patches without unplanned downtime.
What is covered by Ubuntu 16.04 ESM?
Standard Security Maintenance of an Ubuntu LTS release covers binary packages that reside in the 'main' Ubuntu repository for a period of five years. For continued security beyond the standard five-year maintenance period, Canonical provides security maintenance to a wide range of binary packages that are commonly used in cloud and server workloads on 64-bit x86 AMD/Intel architectures for a period of five years beyond the normal end of life.
For continued Linux kernel security, ESM for Ubuntu 16.04 LTS includes support for the below versions:
|Ubuntu release||Architecture||Kernel Version||Kernel Variants|
|Ubuntu 16.04 LTS||arm64, amd64 (AMD/Intel) and s390x||4.15 (HWE)||generic, low-latency, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle|
|Ubuntu 16.04 LTS||arm64, amd64 (AMD/Intel) and s390x||4.4 (GA)||generic, low-latency, generic-fips, linux-aws|
Canonical provides application extended security maintenance to the binary packages that reside in main. A few commonly-used packages include:
|Application||16.04 LTS version|
For Ubuntu 16.04 LTS, where technically feasible, Canonical provides extended security maintenance to all binary packages that reside in the Ubuntu Main Repository.
OpenStack Mitaka packages are supported in Ubuntu 16.04 ESM for those with an Ubuntu Advantage for Infrastructure subscription.
How can I get ESM for Ubuntu 16.04 LTS on a Public Cloud?
ESM for Ubuntu 16.04 LTS is available for free for personal use on up to three machines, or through paid subscriptions on the public cloud with Ubuntu Pro premium images.
How can I get ESM for Ubuntu 16.04 LTS on premises?
ESM for Ubuntu 16.04 LTS is available, free for personal use (you need to set up an UbuntuOne account) on up to three machines or through an Ubuntu Advantage subscription.
I have a UA subscription, how do I activate ESM?
If you have an Ubuntu Advantage subscription, log into ubuntu.com/advantage to get your activation token and activate ESM on your machines directly.
Download Ubuntu 16.04 LTS
Upgrading to Ubuntu 18.04 LTS, Ubuntu 20.04 LTS
You might want to consider upgrading to a new LTS release, you can either upgrade to Ubuntu 18.04 LTS or freshly install Ubuntu 20.04 LTS. There is no direct upgrade path from 16.04 LTS to Ubuntu 20.04 LTS, so you can either move to Ubuntu 18.04 LTS and then to Ubuntu 20.04 LTS, or directly install Ubuntu 20.04 LTS.
Upgrading Ubuntu 16.04 LTS on Azure, AWS
If you are looking to upgrade your Ubuntu 16.04 LTS public cloud instance, it is recommended to launch new, Ubuntu Pro images. Ubuntu Pro for Azure and AWS are premium images with security and compliance features built in, and optimised for the public cloud.
Ubuntu Pro includes security coverage for the entire collection of software packages shipped with Ubuntu, tracking high and critical CVEs. Ideal for companies that have embraced open source for their new products.
Watch the 20.04 migration webinar
This webinar explores all of the factors that should be taken into account to deliver successful migration at the right pace, covering most popular infrastructure components such as OpenStack, Kubernetes and Ceph.
Ubuntu 16.04 LTS kernel lifecycle and enablement stack
The Ubuntu LTS enablement, or Hardware Enablement (HWE), stacks provide the newer kernel and X.Org support for existing Ubuntu LTS releases. These stacks can be installed manually, but are also installed with an Ubuntu LTS point release.
The 16.04.2 and newer point releases ship with an updated kernel and X.Org stack by default for the desktop. Server installations default to the General Availability (GA) kernel and provide the enablement kernel as optional.
Ubuntu 16.04 ESM includes support for v4.4 and v4.15 based generic, lowlatency, hwe-16.04, aws and azure Linux kernel flavours.
Installing the Ubuntu 16.04 LTS HWE stack:
sudo apt-get install --install-recommends linux-generic- hwe-16.04 xserver-xorg-hwe-16.04
sudo apt-get install --install-recommends linux-generic- hwe-16.04