There are 2 types of Ubuntu releases: Interim and LTS. Each Ubuntu LTS is maintained for 10 years total: 5 years of standard support + 5 years of ESM. Interim releases are maintained for 9 months.

For the Ubuntu release cycle please see: The Ubuntu lifecycle and release cadence.

We are happy to provide hosting for the following projects via the cdimage server. While they are not commercially supported by Canonical, they receive full support from their communities.

The cdimage server also hosts releases of other Ubuntu images not found on this server, such as builds for less popular architectures and other non-standard and unsupported images. For Ubuntu Desktop and Server on popular architectures, please see the links above instead.

Ports, Unsupported, and Experimental Images for Ubuntu

For old releases, see old-releases.ubuntu.com.

Ubuntu 16.04 'Xenial Xerus' is no longer supported

Ubuntu 16.04 'Xenial Xerus' is no longer supported

You are about to upgrade to a version of Ubuntu that is no longer supported.

This release of Ubuntu is no longer supported by Canonical. The support timeframe is between 9 months and 5 years after the initial release. You will not receive security updates or critical bugfixes. See http://www.ubuntu.com/releaseendoflife for details.

It is still possible to upgrade this version and eventually you will be able to upgrade to a supported release of Ubuntu.

Alternatively you may want to consider to reinstall the machine to the latest version, for more information on this, visit: http://www.ubuntu.com/desktop/get-ubuntu

For pre-installed system you may want to contact the manufacturer for instructions.

Feedback and Helping

If you would like to help shape Ubuntu, take a look at the list of ways you can participate at

  http://www.ubuntu.com/community/participate/

Your comments, bug reports, patches and suggestions will help ensure that our next release is the best release of Ubuntu ever. If you feel that you have found a bug please read:

  http://help.ubuntu.com/community/ReportingBugs

Then report bugs using apport in Ubuntu. For example:

  ubuntu-bug linux

will open a bug report in Launchpad regarding the linux package.

If you have a question, or if you think you may have found a bug but aren't sure, first try asking on the #ubuntu or #ubuntu-bugs IRC channels on Freenode, on the Ubuntu Users mailing list, or on the Ubuntu forums:

  http://help.ubuntu.com/community/InternetRelayChat
  http://lists.ubuntu.com/mailman/listinfo/ubuntu-users
  http://www.ubuntuforums.org/

More Information

You can find out more about Ubuntu on our website, IRC channel and wiki. If you're new to Ubuntu, please visit:

  http://www.ubuntu.com/

To sign up for future Ubuntu announcements, please subscribe to Ubuntu's very low volume announcement list at:

  http://lists.ubuntu.com/mailman/listinfo/ubuntu-announce